{"id":97146,"date":"2026-09-12T05:48:19","date_gmt":"2026-09-12T02:48:19","guid":{"rendered":"https:\/\/twodots.gr\/?p=97146"},"modified":"2026-09-12T05:48:21","modified_gmt":"2026-09-12T02:48:21","slug":"daso-ai-generative-recommendation-semantic-ids","status":"publish","type":"post","link":"https:\/\/twodots.gr\/bg\/daso-ai-generative-recommendation-semantic-ids\/","title":{"rendered":"DASO: \u03c0\u03ce\u03c2 \u03b7 AI \u03bc\u03b1\u03b8\u03b1\u03af\u03bd\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c4\u03b5\u03af\u03bd\u03b5\u03b9 \u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03c7\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf\u03bd \u03b4\u03c1\u03cc\u03bc\u03bf"},"content":{"rendered":"<div class=\"td-article-lede\">\n<p><strong>\u03a4\u03bf DASO \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 post-training \u03b3\u03b9\u03b1 generative recommendation \u03bc\u03b5 Semantic IDs.<\/strong> \u0391\u03bd\u03c4\u03af \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03b6\u03b5\u03b9 \u03ba\u03ac\u03b8\u03b5 \u03bb\u03b1\u03bd\u03b8\u03b1\u03c3\u03bc\u03ad\u03bd\u03b7 \u03c0\u03c1\u03cc\u03c4\u03b1\u03c3\u03b7 \u03c9\u03c2 \u03af\u03b4\u03b9\u03bf \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03ba\u03cc \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1, \u03bc\u03b5\u03c4\u03c1\u03ac \u03c0\u03cc\u03c3\u03bf \u03b2\u03b1\u03b8\u03b9\u03ac \u03b1\u03ba\u03bf\u03bb\u03bf\u03cd\u03b8\u03b7\u03c3\u03b5 \u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03b9\u03b5\u03c1\u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03cd\u03bd\u03b5\u03b9 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 rollouts \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03cc\u03c0\u03bf\u03c5 \u03b7 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03c7\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf\u03bd \u03c3\u03c4\u03cc\u03c7\u03bf.<\/p>\n<p>\u03a3\u03c4\u03b1 \u03b4\u03cd\u03bf \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 Amazon benchmarks \u03c4\u03bf\u03c5 paper, \u03c4\u03bf DASO \u03b2\u03b5\u03bb\u03c4\u03af\u03c9\u03c3\u03b5 \u03c4\u03bf MiniOneRec-style GRPO \u03c3\u03b5 11 \u03b1\u03c0\u03cc 12 metrics \u03ba\u03b1\u03b9 \u03b5\u03af\u03c7\u03b5 \u03c4\u03b7\u03bd \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03c0\u03af\u03b4\u03bf\u03c3\u03b7 \u03c3\u03b5 9 \u03b1\u03c0\u03cc 12. \u0391\u03c5\u03c4\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 recommendation accuracy \u03b1\u03c0\u03cc single runs, \u03cc\u03c7\u03b9 \u03b1\u03c0\u03cc\u03b4\u03b5\u03b9\u03be\u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7\u03c2 \u03c0\u03c9\u03bb\u03ae\u03c3\u03b5\u03c9\u03bd. \u0393\u03b9\u03b1 \u03ad\u03bd\u03b1 e-shop, \u03b7 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03b1\u03be\u03af\u03b1 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 failure mode, \u03c3\u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03b4\u03bf\u03bc\u03ae \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03bb\u03cc\u03b3\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03b5\u03bb\u03b5\u03b3\u03c7\u03cc\u03bc\u03b5\u03bd\u03bf offline-to-online \u03c0\u03b5\u03af\u03c1\u03b1\u03bc\u03b1.<\/p>\n<\/div>\n<div class=\"td-article-toc\">\n<div class=\"td-toc-title\">\u0421\u044a\u0434\u044a\u0440\u0436\u0430\u043d\u0438\u0435<\/div>\n<ul>\n<li><a href=\"#generative-recommendation-semantic-ids\">\u0391\u03c0\u03cc \u03c4\u03bf ranking \u03c3\u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 Semantic IDs<\/a><\/li>\n<li><a href=\"#grpo-target-missing-sima\">\u0393\u03b9\u03b1\u03c4\u03af \u03c4\u03bf GRPO \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bc\u03b5\u03af\u03bd\u03b5\u03b9 \u03c7\u03c9\u03c1\u03af\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b9\u03bc\u03bf \u03c3\u03ae\u03bc\u03b1<\/a><\/li>\n<li><a href=\"#daso-online-prefix-profile\">\u03a0\u03ce\u03c2 \u03c4\u03bf DASO \u03bc\u03b5\u03c4\u03c1\u03ac \u03c4\u03b7 \u03b4\u03c5\u03c3\u03ba\u03bf\u03bb\u03af\u03b1 online<\/a><\/li>\n<li><a href=\"#guided-rollouts-sosto-vathos\">Guided rollouts \u03c3\u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc \u03b2\u03ac\u03b8\u03bf\u03c2<\/a><\/li>\n<li><a href=\"#sid-prefix-reward\">Reward \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03b5\u03c1\u03b9\u03ba\u03ae \u03c0\u03c1\u03cc\u03bf\u03b4\u03bf<\/a><\/li>\n<li><a href=\"#sft-anchor-statherotita\">\u03a4\u03bf SFT anchor \u03c9\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/a><\/li>\n<li><a href=\"#daso-apotelesmata\">\u03a4\u03b9 \u03ad\u03b4\u03b5\u03b9\u03be\u03b1\u03bd \u03c4\u03b1 \u03c0\u03b5\u03b9\u03c1\u03ac\u03bc\u03b1\u03c4\u03b1<\/a><\/li>\n<li><a href=\"#oria-ecommerce\">\u03a4\u03b9 \u03b4\u03b5\u03bd \u03b1\u03c0\u03bf\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03b5\u03b9 \u03c4\u03bf paper \u03b3\u03b9\u03b1 \u03c4\u03bf e-commerce<\/a><\/li>\n<li><a href=\"#praktiko-pilot-recommendation\">\u03a0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc pilot \u03b3\u03b9\u03b1 recommendation teams<\/a><\/li>\n<li><a href=\"#daso-ai-personalization\">\u03a4\u03b9 \u03ba\u03c1\u03b1\u03c4\u03ac\u03bc\u03b5 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd AI personalization<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 id=\"generative-recommendation-semantic-ids\">\u0391\u03c0\u03cc \u03c4\u03bf ranking \u03c3\u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 Semantic IDs<\/h2>\n<p>\u03a4\u03b1 \u03ba\u03bb\u03b1\u03c3\u03b9\u03ba\u03ac recommendation systems \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03b1\u03bd\u03b1\u03ba\u03c4\u03bf\u03cd\u03bd \u03ad\u03bd\u03b1 \u03c3\u03cd\u03bd\u03bf\u03bb\u03bf \u03c5\u03c0\u03bf\u03c8\u03ae\u03c6\u03b9\u03c9\u03bd \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1 \u03c4\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c4\u03ac\u03c3\u03c3\u03bf\u03c5\u03bd. \u03a3\u03c4\u03bf generative recommendation, \u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b9\u03c3\u03c4\u03bf\u03c1\u03b9\u03ba\u03cc \u03ae \u03ac\u03bb\u03bb\u03bf context \u03c4\u03bf\u03c5 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03b1\u03c0\u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf \u03b1\u03bd\u03b1\u03b3\u03bd\u03c9\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c4\u03bf\u03c5 \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf\u03c5 item. \u0397 \u03c0\u03c1\u03cc\u03c4\u03b1\u03c3\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c4\u03c1\u03ad\u03c0\u03b5\u03c4\u03b1\u03b9 \u03ad\u03c4\u03c3\u03b9 \u03c3\u03b5 autoregressive generation \u03bc\u03b9\u03b1\u03c2 \u03bc\u03b9\u03ba\u03c1\u03ae\u03c2 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03af\u03b1\u03c2 tokens.<\/p>\n<p>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03b4\u03b9\u03b1\u03c7\u03b5\u03b9\u03c1\u03af\u03c3\u03b9\u03bc\u03bf\u03c2 \u03ad\u03bd\u03b1\u03c2 \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bf\u03b3\u03bf\u03c2, \u03ba\u03ac\u03b8\u03b5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03c3\u03c4\u03b1\u03b8\u03b5\u03af \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 Semantic ID: \u03bc\u03b9\u03b1 \u03c3\u03cd\u03bd\u03c4\u03bf\u03bc\u03b7, \u03b9\u03b5\u03c1\u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03af\u03b1 \u03b4\u03b9\u03b1\u03ba\u03c1\u03b9\u03c4\u03ce\u03bd \u03ba\u03c9\u03b4\u03b9\u03ba\u03ce\u03bd. \u03a4\u03b1 \u03c0\u03c1\u03ce\u03c4\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03b5\u03c0\u03b9\u03b4\u03b9\u03ce\u03ba\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03ba\u03c6\u03c1\u03ac\u03b6\u03bf\u03c5\u03bd \u03b5\u03c5\u03c1\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c3\u03b7\u03bc\u03b1\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03c3\u03c5\u03b3\u03b3\u03ad\u03bd\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b1 \u03bd\u03b1 \u03b5\u03be\u03b5\u03b9\u03b4\u03b9\u03ba\u03b5\u03cd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae. \u03a3\u03c4\u03b1 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 \u03c0\u03b5\u03b9\u03c1\u03ac\u03bc\u03b1\u03c4\u03b1 \u03c4\u03bf\u03c5 DASO \u03c4\u03b1 IDs \u03ad\u03c7\u03bf\u03c5\u03bd \u03c4\u03c1\u03af\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03bc\u03b5 \u03ad\u03c9\u03c2 256 \u03ba\u03c9\u03b4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b1\u03bd\u03ac \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf. \u03a3\u03c4\u03bf \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03cc \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03cc dataset \u03ad\u03c7\u03bf\u03c5\u03bd \u03c4\u03ad\u03c3\u03c3\u03b5\u03c1\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03ba\u03b1\u03b9 \u03ad\u03c9\u03c2 2.048 \u03ba\u03c9\u03b4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b1\u03bd\u03ac \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf.<\/p>\n<p>\u0397 \u03b9\u03b5\u03c1\u03b1\u03c1\u03c7\u03af\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b1 \u03c0\u03bf\u03c5 \u03ad\u03bd\u03b1 \u03b1\u03c0\u03bb\u03cc item ID \u03b4\u03b5\u03bd \u03ad\u03c7\u03b5\u03b9. \u0391\u03bd \u03b7 \u03c0\u03c1\u03cc\u03b2\u03bb\u03b5\u03c8\u03b7 \u03b1\u03c0\u03bf\u03c4\u03cd\u03c7\u03b5\u03b9 \u03c3\u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf token, \u03b5\u03b9\u03c3\u03ad\u03c1\u03c7\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03bb\u03ac\u03b8\u03bf\u03c2 \u03c5\u03c0\u03bf\u03b4\u03ad\u03bd\u03c4\u03c1\u03bf. \u0391\u03bd \u03c0\u03b5\u03c4\u03cd\u03c7\u03b5\u03b9 \u03c4\u03b1 \u03c0\u03c1\u03ce\u03c4\u03b1 \u03b4\u03cd\u03bf tokens \u03b1\u03bb\u03bb\u03ac \u03c7\u03ac\u03c3\u03b5\u03b9 \u03c4\u03bf \u03c4\u03c1\u03af\u03c4\u03bf, \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03c0\u03b9\u03bf \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03c4\u03bf\u03bd \u03c3\u03c4\u03cc\u03c7\u03bf. \u0388\u03bd\u03b1 binary reward \u03c0\u03bf\u03c5 \u03b5\u03bb\u03ad\u03b3\u03c7\u03b5\u03b9 \u03bc\u03cc\u03bd\u03bf \u03c4\u03bf \u03c4\u03b5\u03bb\u03b9\u03ba\u03cc item \u03b1\u03b3\u03bd\u03bf\u03b5\u03af \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac, \u03b5\u03bd\u03ce \u03c4\u03bf DASO \u03c4\u03b7 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c9\u03c2 \u03b5\u03bd\u03b4\u03b9\u03ac\u03bc\u03b5\u03c3\u03bf training signal.<\/p>\n<div class=\"td-comparison td-comparison-cards td-comparison-cards--horizontal\">\n<div class=\"td-comparison-grid td-comparison-grid--three\">\n<div class=\"td-platform-card\">\n<p class=\"td-comparison-title\">\u039a\u03bb\u03b1\u03c3\u03b9\u03ba\u03cc retrieve \u03ba\u03b1\u03b9 rank<\/p>\n<p>\u03a4\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 \u03b1\u03bd\u03b1\u03ba\u03c4\u03ac \u03c5\u03c0\u03bf\u03c8\u03b7\u03c6\u03af\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03b5\u03af \u03bc\u03b9\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03bb\u03af\u03c3\u03c4\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd \u03c3\u03b5 \u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03ac \u03c3\u03c4\u03ac\u03b4\u03b9\u03b1.<\/p>\n<div class=\"td-badge-row\"><span class=\"td-badge\">Candidates<\/span><span class=\"td-badge\">Ranking<\/span><\/div>\n<\/div>\n<div class=\"td-platform-card\">\n<p class=\"td-comparison-title\">Generative Semantic ID<\/p>\n<p>\u03a4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03ad\u03b3\u03ba\u03c5\u03c1\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae tokens \u03bc\u03ad\u03c3\u03b1 \u03c3\u03c4\u03bf\u03bd \u03b9\u03b5\u03c1\u03b1\u03c1\u03c7\u03b9\u03ba\u03cc \u03ba\u03b1\u03c4\u03ac\u03bb\u03bf\u03b3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c3\u03b5 item.<\/p>\n<div class=\"td-badge-row\"><span class=\"td-badge\">SID tree<\/span><span class=\"td-badge\">Constrained decoding<\/span><\/div>\n<\/div>\n<div class=\"td-platform-card td-platform-card--navy\">\n<p class=\"td-comparison-title\">DASO post-training<\/p>\n<p>\u03a4\u03bf prefix depth \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03bf\u03cd \u03c7\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bf \u03c3\u03c4\u03cc\u03c7\u03bf\u03c2, \u03ce\u03c3\u03c4\u03b5 \u03c4\u03bf guidance \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03cc\u03bd\u03bf \u03c3\u03c4\u03b1 \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1.<\/p>\n<div class=\"td-badge-row\"><span class=\"td-badge\">Online profile<\/span><span class=\"td-badge\">Bounded guidance<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0397 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03ad\u03c7\u03b5\u03b9 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae \u03b5\u03bd\u03cc\u03c2 e-shop. \u0397 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03be\u03b1\u03c4\u03bf\u03bc\u03af\u03ba\u03b5\u03c5\u03c3\u03b7\u03c2 \u03b4\u03b5\u03bd \u03b5\u03be\u03b1\u03c1\u03c4\u03ac\u03c4\u03b1\u03b9 \u03bc\u03cc\u03bd\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf\u03c5. \u0395\u03be\u03b1\u03c1\u03c4\u03ac\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03bb\u03cc\u03b3\u03bf\u03c5, \u03c4\u03b7 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd item mappings, \u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c0\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 user context \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03ce\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf reward. \u0391\u03c5\u03c4\u03cc \u03c3\u03c5\u03bd\u03b4\u03ad\u03b5\u03c4\u03b1\u03b9 \u03ac\u03bc\u03b5\u03c3\u03b1 \u03bc\u03b5 \u03c4\u03b9\u03c2 <a href=\"https:\/\/twodots.gr\/platformes-exatomikeysis-gia-epicheiriseis\/\">\u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b5\u03c2 \u03b5\u03be\u03b1\u03c4\u03bf\u03bc\u03af\u03ba\u03b5\u03c5\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2<\/a>, \u03b1\u03bb\u03bb\u03ac \u03c0\u03c1\u03bf\u03cb\u03c0\u03bf\u03b8\u03ad\u03c4\u03b5\u03b9 \u03c0\u03bf\u03bb\u03cd \u03c0\u03b9\u03bf \u03b5\u03b9\u03b4\u03b9\u03ba\u03ae \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 \u03ad\u03c4\u03bf\u03b9\u03bc\u03bf recommendation widget.<\/p>\n<h2 id=\"grpo-target-missing-sima\">\u0393\u03b9\u03b1\u03c4\u03af \u03c4\u03bf GRPO \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bc\u03b5\u03af\u03bd\u03b5\u03b9 \u03c7\u03c9\u03c1\u03af\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b9\u03bc\u03bf \u03c3\u03ae\u03bc\u03b1<\/h2>\n<p>\u0397 \u03c3\u03c5\u03bd\u03c4\u03b1\u03b3\u03ae \u03c0\u03bf\u03c5 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03c5\u03bd \u03bf\u03b9 \u03c3\u03c5\u03b3\u03b3\u03c1\u03b1\u03c6\u03b5\u03af\u03c2 \u03be\u03b5\u03ba\u03b9\u03bd\u03ac \u03bc\u03b5 supervised fine-tuning (SFT) \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03b6\u03b5\u03b9 \u03bc\u03b5 Group Relative Policy Optimization (GRPO). \u0393\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 prompt, \u03c4\u03bf GRPO \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03c0\u03b9\u03b8\u03b1\u03bd\u03ce\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd, \u03b1\u03c0\u03bf\u03b4\u03af\u03b4\u03b5\u03b9 reward \u03c3\u03b5 \u03ba\u03b1\u03b8\u03b5\u03bc\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b5\u03bd\u03b9\u03c3\u03c7\u03cd\u03b5\u03b9 \u03cc\u03c3\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03bc\u03ad\u03c3\u03bf \u03cc\u03c1\u03bf \u03c4\u03b7\u03c2 \u03bf\u03bc\u03ac\u03b4\u03b1\u03c2. \u0397 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03cc\u03c4\u03b1\u03bd \u03c4\u03b1 rewards \u03ad\u03c7\u03bf\u03c5\u03bd \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03b4\u03b9\u03b1\u03ba\u03cd\u03bc\u03b1\u03bd\u03c3\u03b7.<\/p>\n<p>\u03a4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03cc\u03c4\u03b1\u03bd \u03ba\u03b1\u03bd\u03ad\u03bd\u03b1 rollout \u03b4\u03b5\u03bd \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c3\u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc item. \u039c\u03b5 \u03ba\u03b1\u03b8\u03b1\u03c1\u03ac item-level reward, \u03c0\u03bf\u03bb\u03bb\u03ad\u03c2 \u03ae \u03cc\u03bb\u03b5\u03c2 \u03bf\u03b9 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c0\u03ac\u03c1\u03bf\u03c5\u03bd \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03ba\u03cc \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1. \u03a4\u03cc\u03c4\u03b5 \u03c4\u03b1 group-relative advantages \u03c0\u03bb\u03b7\u03c3\u03b9\u03ac\u03b6\u03bf\u03c5\u03bd \u03c4\u03bf \u03bc\u03b7\u03b4\u03ad\u03bd \u03ba\u03b1\u03b9 \u03c4\u03bf policy gradient \u03b4\u03b5\u03bd \u03be\u03b5\u03c7\u03c9\u03c1\u03af\u03b6\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03c0\u03c1\u03cc\u03b2\u03bb\u03b5\u03c8\u03b7 \u03c0\u03bf\u03c5 \u03b2\u03c1\u03ae\u03ba\u03b5 \u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc \u03c0\u03c1\u03ce\u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03c0\u03c1\u03cc\u03b2\u03bb\u03b5\u03c8\u03b7 \u03c0\u03bf\u03c5 \u03b2\u03b3\u03ae\u03ba\u03b5 \u03b1\u03bc\u03ad\u03c3\u03c9\u03c2 \u03c3\u03b5 \u03ac\u03c3\u03c7\u03b5\u03c4\u03bf \u03ba\u03bb\u03ac\u03b4\u03bf.<\/p>\n<p>\u03a3\u03c4\u03bf frozen SFT checkpoint, \u03bf\u03b9 \u03c0\u03c1\u03ce\u03c4\u03bf\u03b9 16 \u03c5\u03c0\u03bf\u03c8\u03ae\u03c6\u03b9\u03bf\u03b9 \u03b5\u03bd\u03cc\u03c2 constrained ranking 50 beams \u03b4\u03b5\u03bd \u03c0\u03b5\u03c1\u03b9\u03b5\u03af\u03c7\u03b1\u03bd \u03bf\u03cd\u03c4\u03b5 match \u03c3\u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf SID token \u03b3\u03b9\u03b1 \u03c4\u03bf 52,5% \u03ad\u03c9\u03c2 63,9% \u03c4\u03c9\u03bd prompts \u03c3\u03c4\u03b1 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 test sets. \u039f\u03b9 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03b4\u03b5\u03bd \u03c0\u03c1\u03bf\u03ad\u03c1\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b1 on-policy training rollouts\u00b7 \u03b5\u03af\u03bd\u03b1\u03b9 prompt-level diagnostic \u03c3\u03c4\u03bf \u03c0\u03b1\u03b3\u03c9\u03bc\u03ad\u03bd\u03bf checkpoint. \u039f\u03b9 \u03c3\u03c5\u03b3\u03b3\u03c1\u03b1\u03c6\u03b5\u03af\u03c2 \u03c4\u03b9\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c9\u03c2 \u03ad\u03bd\u03b4\u03b5\u03b9\u03be\u03b7 \u03cc\u03c4\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b5\u03c2 target-missing \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ad\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03bf training.<\/p>\n<aside class=\"td-article-note\">\n<p><strong>\u039a\u03c1\u03af\u03c3\u03b9\u03bc\u03b7 \u03b4\u03b9\u03ac\u03ba\u03c1\u03b9\u03c3\u03b7:<\/strong> \u03c4\u03bf 52,5%\u201363,9% \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03b5\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03c0\u03c1\u03ce\u03c4\u03bf\u03c5\u03c2 16 \u03c5\u03c0\u03bf\u03c8\u03b7\u03c6\u03af\u03bf\u03c5\u03c2 \u03bc\u03b9\u03b1\u03c2 50-beam diagnostic \u03ba\u03b1\u03c4\u03ac\u03c4\u03b1\u03be\u03b7\u03c2 \u03c3\u03c4\u03bf frozen SFT checkpoint. \u0394\u03b5\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc \u03b1\u03c0\u03bf\u03c4\u03c5\u03c7\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03c4\u03b5\u03bb\u03b9\u03ba\u03bf\u03cd DASO \u03bf\u03cd\u03c4\u03b5 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 conversion \u03b5\u03bd\u03cc\u03c2 e-shop.<\/p>\n<\/aside>\n<p>\u0393\u03b9\u03b1 \u03bc\u03b9\u03b1 product team, \u03b1\u03c5\u03c4\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03c7\u03c1\u03ae\u03c3\u03b9\u03bc\u03b7 \u03b4\u03b9\u03b1\u03b3\u03bd\u03c9\u03c3\u03c4\u03b9\u03ba\u03ae \u03b1\u03c1\u03c7\u03ae. \u03a0\u03c1\u03b9\u03bd \u03c0\u03c1\u03bf\u03c3\u03c4\u03b5\u03b8\u03b5\u03af \u03c3\u03cd\u03bd\u03b8\u03b5\u03c4\u03bf reinforcement learning, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03b4\u03b5\u03b9\u03c7\u03b8\u03b5\u03af \u03cc\u03c4\u03b9 \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03bd\u03c4\u03c9\u03c2 \u03b7 \u03b1\u03c0\u03bf\u03c5\u03c3\u03af\u03b1 \u03c4\u03bf\u03c5 target branch \u03ba\u03b1\u03b9 \u03cc\u03c7\u03b9 \u03ba\u03b1\u03ba\u03ae \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd, \u03b1\u03c3\u03c5\u03bd\u03b5\u03c0\u03b5\u03af\u03c2 IDs, \u03bb\u03b1\u03bd\u03b8\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf catalog taxonomy, \u03b1\u03bd\u03b5\u03c0\u03b1\u03c1\u03ba\u03ad\u03c2 context \u03ae \u03bb\u03ac\u03b8\u03bf\u03c2 offline metric. \u0397 <a href=\"https:\/\/twodots.gr\/ta-kalytera-logismika-analysis-proionton\/\">\u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd<\/a> \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03be\u03b5\u03ba\u03b9\u03bd\u03ac \u03b1\u03c0\u03cc \u03c4\u03bf \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc failure mode, \u03cc\u03c7\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03bc\u03b9\u03b1\u03c2 \u03b5\u03bd\u03c4\u03c5\u03c0\u03c9\u03c3\u03b9\u03b1\u03ba\u03ae\u03c2 \u03bc\u03b5\u03b8\u03cc\u03b4\u03bf\u03c5.<\/p>\n<h2 id=\"daso-online-prefix-profile\">\u03a0\u03ce\u03c2 \u03c4\u03bf DASO \u03bc\u03b5\u03c4\u03c1\u03ac \u03c4\u03b7 \u03b4\u03c5\u03c3\u03ba\u03bf\u03bb\u03af\u03b1 online<\/h2>\n<p>\u03a4\u03bf DASO \u03b4\u03b5\u03bd \u03ba\u03bf\u03bb\u03bb\u03ac \u03bc\u03cc\u03bd\u03b9\u03bc\u03b1 \u03c4\u03b7\u03bd \u03b5\u03c4\u03b9\u03ba\u03ad\u03c4\u03b1 \u00ab\u03b5\u03cd\u03ba\u03bf\u03bb\u03bf\u00bb \u03ae \u00ab\u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03bf\u00bb \u03c3\u03b5 \u03ad\u03bd\u03b1 prompt. \u03a3\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03b2\u03ae\u03bc\u03b1 \u03b5\u03ba\u03c0\u03b1\u03af\u03b4\u03b5\u03c5\u03c3\u03b7\u03c2 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03c1\u03ad\u03c7\u03bf\u03c5\u03c3\u03b1 \u03bf\u03bc\u03ac\u03b4\u03b1 rollouts \u03ba\u03b1\u03b9 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03b9 \u03c4\u03bf prefix-match depth: \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b9\u03ba\u03bf\u03cd \u03c4\u03bc\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bc\u03c6\u03c9\u03bd\u03b5\u03af \u03bc\u03b5 \u03c4\u03bf target Semantic ID. \u0392\u03ac\u03b8\u03bf\u03c2 \u03bc\u03b7\u03b4\u03ad\u03bd \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c7\u03ac\u03b8\u03b7\u03ba\u03b5 \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf token\u00b7 \u03c0\u03bb\u03ae\u03c1\u03b5\u03c2 \u03b2\u03ac\u03b8\u03bf\u03c2 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 exact hit.<\/p>\n<p>\u0391\u03c0\u03cc \u03c4\u03b1 \u03b2\u03ac\u03b8\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03c3\u03c9\u03c1\u03b5\u03c5\u03c4\u03b9\u03ba\u03cc prefix profile. \u0397 \u03c0\u03c4\u03ce\u03c3\u03b7 \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 \u03b4\u03cd\u03bf \u03b4\u03b9\u03b1\u03b4\u03bf\u03c7\u03b9\u03ba\u03ac \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03bf\u03cd \u03b5\u03b3\u03ba\u03b1\u03c4\u03b1\u03bb\u03b5\u03af\u03c0\u03bf\u03c5\u03bd \u03c3\u03c5\u03c7\u03bd\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03bf\u03b9 \u03c5\u03c0\u03bf\u03c8\u03ae\u03c6\u03b9\u03bf\u03b9. \u0391\u03bd \u03b7 \u03c0\u03c4\u03ce\u03c3\u03b7 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c1\u03af\u03b6\u03b1, \u03c4\u03bf guidance \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b2\u03bf\u03b7\u03b8\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03af\u03c3\u03bf\u03b4\u03bf \u03c3\u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc coarse branch. \u0391\u03bd \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac rollouts \u03c6\u03c4\u03ac\u03bd\u03bf\u03c5\u03bd \u03b2\u03b1\u03b8\u03cd\u03c4\u03b5\u03c1\u03b1, \u03b7 \u03c0\u03b1\u03c1\u03ad\u03bc\u03b2\u03b1\u03c3\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5\u03c4\u03ac \u03c4\u03bf \u03ba\u03bf\u03b9\u03bd\u03cc prefix.<\/p>\n<p>\u0397 online \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03ce\u03b4\u03b7\u03c2 \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b7 \u03b4\u03c5\u03c3\u03ba\u03bf\u03bb\u03af\u03b1 \u03bc\u03b5\u03c4\u03b1\u03b2\u03ac\u03bb\u03bb\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b1\u03b6\u03af \u03bc\u03b5 \u03c4\u03b7\u03bd policy. \u0388\u03bd\u03b1 prompt \u03c0\u03bf\u03c5 \u03ae\u03c4\u03b1\u03bd \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03bf \u03c3\u03c4\u03bf \u03b1\u03c1\u03c7\u03b9\u03ba\u03cc SFT checkpoint \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 \u03b5\u03c5\u03ba\u03bf\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c1\u03b3\u03cc\u03c4\u03b5\u03c1\u03b1, \u03b5\u03bd\u03ce \u03ad\u03bd\u03b1 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03cc bucket \u03b4\u03b5\u03bd \u03b8\u03b1 \u03c4\u03bf \u03b1\u03bd\u03c4\u03b9\u03bb\u03b7\u03c6\u03b8\u03b5\u03af. \u03a3\u03c4\u03b9\u03c2 ablations, \u03b7 static \u03c0\u03b1\u03c1\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03ae\u03c4\u03b1\u03bd \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c0\u03bb\u03ae\u03c1\u03b5\u03c2 DASO \u03c3\u03c4\u03b1 aggregate HR@5 \u03ba\u03b1\u03b9 NDCG@5 \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03b4\u03cd\u03bf backbones \u03ba\u03b1\u03b9 datasets.<\/p>\n<div class=\"td-chart td-chart--metrics\">\n<div class=\"td-chart-head\">\n<p class=\"td-chart-title\">\u03a4\u03bf DASO \u03c3\u03b5 \u03c4\u03ad\u03c3\u03c3\u03b5\u03c1\u03b1 \u03b5\u03c0\u03b1\u03bb\u03b7\u03b8\u03b5\u03c5\u03bc\u03ad\u03bd\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7<\/p>\n<p class=\"td-chart-subtitle\">\u039f\u03b9 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c0\u03c1\u03bf\u03ad\u03c1\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf paper \u03ba\u03b1\u03b9 \u03b1\u03c6\u03bf\u03c1\u03bf\u03cd\u03bd \u03b1\u03c0\u03bf\u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c4\u03bf \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf experimental protocol, \u03cc\u03c7\u03b9 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03ac KPIs.<\/p>\n<\/div>\n<div class=\"td-chart-body\">\n<div class=\"td-metric-grid\">\n<div class=\"td-metric-card\"><span class=\"td-metric-value\">16<\/span><span class=\"td-metric-label\">rollouts \u03b1\u03bd\u03ac raw group<\/span><\/div>\n<div class=\"td-metric-card\"><span class=\"td-metric-value\">9<\/span><span class=\"td-metric-label\">\u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03bf guided budget<\/span><\/div>\n<div class=\"td-metric-card\"><span class=\"td-metric-value\">11\/12<\/span><span class=\"td-metric-label\">metrics \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc MiniOneRec GRPO<\/span><\/div>\n<div class=\"td-metric-card\"><span class=\"td-metric-value\">9\/12<\/span><span class=\"td-metric-label\">\u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b5\u03c2 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b5\u03c2 \u03b5\u03c0\u03b9\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2 id=\"guided-rollouts-sosto-vathos\">Guided rollouts \u03c3\u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc \u03b2\u03ac\u03b8\u03bf\u03c2<\/h2>\n<p>\u0391\u03bd \u03b7 raw \u03bf\u03bc\u03ac\u03b4\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9 \u03ae\u03b4\u03b7 \u03c4\u03bf \u03b1\u03ba\u03c1\u03b9\u03b2\u03ad\u03c2 target SID, \u03c4\u03bf DASO \u03c4\u03b7\u03bd \u03b1\u03c6\u03ae\u03bd\u03b5\u03b9 \u03b1\u03bc\u03b5\u03c4\u03ac\u03b2\u03bb\u03b7\u03c4\u03b7: \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03ae\u03b4\u03b7 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7 \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03bb\u03b1\u03bd\u03b8\u03b1\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2. \u0391\u03bd \u03bb\u03b5\u03af\u03c0\u03b5\u03b9 \u03c4\u03bf exact hit, \u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03b9 \u03ad\u03bd\u03b1 budget \u03ba\u03b1\u03b8\u03bf\u03b4\u03ae\u03b3\u03b7\u03c3\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03cc\u03c3\u03bf \u03bc\u03b9\u03ba\u03c1\u03b1\u03af\u03bd\u03b5\u03b9 \u03c4\u03bf \u03bc\u03ad\u03c3\u03bf prefix-match depth, \u03c0\u03ac\u03bd\u03c4\u03b1 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03cc\u03c1\u03b9\u03bf \u03c4\u03c9\u03bd 9 \u03b8\u03ad\u03c3\u03b5\u03c9\u03bd \u03c3\u03b5 \u03bf\u03bc\u03ac\u03b4\u03b1 16 rollouts.<\/p>\n<p>\u03a4\u03bf budget \u03ba\u03b1\u03c4\u03b1\u03bd\u03ad\u03bc\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b1 bottleneck depths \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5 prefix profile \u03ba\u03b1\u03b9 \u03bc\u03b5 deterministic largest-remainder rounding. \u0393\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 guided completion, \u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc target prefix \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03bf \u03b5\u03c0\u03b9\u03bb\u03b5\u03b3\u03bc\u03ad\u03bd\u03bf \u03b2\u03ac\u03b8\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03c4\u03c1\u03ad\u03c7\u03bf\u03c5\u03c3\u03b1 policy \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03c4\u03bf \u03c5\u03c0\u03cc\u03bb\u03bf\u03b9\u03c0\u03bf suffix. \u039f\u03b9 guided completions \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03bf\u03cd\u03bd \u03c4\u03b1 \u03c0\u03b9\u03bf \u03b1\u03b4\u03cd\u03bd\u03b1\u03bc\u03b1 raw rollouts, \u03b5\u03bd\u03ce \u03c4\u03b1 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c9\u03c2 on-policy contrast.<\/p>\n<p>\u03a4\u03b1 forced-prefix tokens \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c9\u03c2 conditioning context, \u03cc\u03c7\u03b9 \u03c9\u03c2 actions \u03c4\u03b7\u03c2 policy. \u039f\u03b9 likelihood-ratio \u03ba\u03b1\u03b9 KL \u03cc\u03c1\u03bf\u03b9 \u03c4\u03bf\u03c5 GRPO \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03cc\u03bd\u03bf \u03c3\u03c4\u03b1 suffix tokens \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ae\u03b3\u03b1\u03b3\u03b5 \u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf. \u0388\u03c4\u03c3\u03b9 \u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b5\u03b9\u03c3\u03ac\u03b3\u03b5\u03b9 \u03c7\u03c1\u03ae\u03c3\u03b9\u03bc\u03bf target-path signal \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03b7 \u03c4\u03b7\u03bd \u03bf\u03bc\u03ac\u03b4\u03b1 \u03c3\u03b5 teacher-forced batch.<\/p>\n<p>\u0391\u03c5\u03c4\u03ae \u03b7 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b9\u03bf \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ae \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c0\u03bb\u03ae \u03c0\u03c1\u03bf\u03c3\u03b8\u03ae\u03ba\u03b7 \u00ab\u03c3\u03c9\u03c3\u03c4\u03ce\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd\u00bb. \u03a3\u03c4\u03bf \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03bf comparison, \u03c4\u03bf \u03c0\u03bb\u03ae\u03c1\u03b5\u03c2 DASO \u03ae\u03c4\u03b1\u03bd \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03bf\u03bc\u03bf\u03b9\u03cc\u03bc\u03bf\u03c1\u03c6\u03b7 MiniOneRec + GT \u03c0\u03b1\u03c1\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c3\u03b5 11 \u03b1\u03c0\u03cc 12 metrics. \u03a4\u03bf \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03b9 \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03b1 training frameworks \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bd \u03b1\u03c0\u03bf\u03bc\u03bf\u03bd\u03ce\u03bd\u03b5\u03b9 \u03bc\u03cc\u03bd\u03bf \u03c4\u03bf\u03bd allocator, \u03b1\u03bb\u03bb\u03ac \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b3\u03b9\u03b1\u03c4\u03af \u03b7 \u03b8\u03ad\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b7 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 guidance \u03b1\u03be\u03af\u03b6\u03bf\u03c5\u03bd \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03cc \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc.<\/p>\n<h2 id=\"sid-prefix-reward\">Reward \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03b5\u03c1\u03b9\u03ba\u03ae \u03c0\u03c1\u03cc\u03bf\u03b4\u03bf<\/h2>\n<p>\u03a4\u03bf DASO \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b5\u03af \u03c4\u03bf\u03bd item-accuracy reward \u03ba\u03b1\u03b9 \u03c4\u03bf rank-aware \u03c3\u03c5\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03cc \u03c4\u03bf\u03c5 MiniOneRec \u03bc\u03b5 \u03b2\u03ac\u03c1\u03bf\u03c2 0,3. \u03a0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03b5\u03b9 \u03ad\u03bd\u03b1\u03bd SID-prefix reward: \u03c4\u03bf matched depth \u03b4\u03b9\u03b1\u03b9\u03c1\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03b2\u03ac\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 Semantic ID. \u039c\u03b9\u03b1 \u03c0\u03c1\u03cc\u03b2\u03bb\u03b5\u03c8\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03b5\u03af \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03bc\u03ad\u03c1\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae\u03c2 \u03c0\u03b1\u03af\u03c1\u03bd\u03b5\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf credit \u03b1\u03c0\u03cc \u03bc\u03af\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c4\u03c5\u03b3\u03c7\u03ac\u03bd\u03b5\u03b9 \u03c3\u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf.<\/p>\n<p>\u03a4\u03bf prefix credit \u03b4\u03b5\u03bd \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ac \u03c4\u03bf\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03cc \u03c3\u03c4\u03cc\u03c7\u03bf. \u0397 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae item \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03cc\u03c2 reward, \u03b5\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2 \u03ad\u03bd\u03b1 \u03c1\u03b7\u03c7\u03cc prefix \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bc\u03cc\u03bd\u03bf \u03c4\u03bf\u03c5 \u03bd\u03b1 \u03bc\u03b5\u03b3\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9 \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1. \u039f \u03c1\u03cc\u03bb\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03c3\u03c0\u03ac\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b9\u03c3\u03bf\u03c0\u03b1\u03bb\u03af\u03b1 \u03c3\u03c4\u03b9\u03c2 target-missing \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2, \u03cc\u03c4\u03b1\u03bd \u03c4\u03bf binary feedback \u03b8\u03b1 \u03ae\u03c4\u03b1\u03bd \u03c3\u03b9\u03c9\u03c0\u03b7\u03bb\u03cc.<\/p>\n<p>\u0397 \u03b1\u03c6\u03b1\u03af\u03c1\u03b5\u03c3\u03b7 \u03c4\u03bf\u03c5 SID-prefix reward \u03bc\u03b5\u03af\u03c9\u03c3\u03b5 \u03ba\u03b1\u03b9 \u03c4\u03b1 12 aggregate metric entries \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 \u03b7 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ae ablation. \u039f\u03b9 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ad\u03c2 \u03b4\u03b5\u03bd \u03b1\u03c0\u03bf\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03c4\u03bf prefix term \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03bc\u03bf\u03bd\u03b1\u03b4\u03b9\u03ba\u03ae \u03b1\u03b9\u03c4\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b2\u03b5\u03bb\u03c4\u03af\u03c9\u03c3\u03b7\u03c2. \u03a5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03b6\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03bc\u03b1\u03b6\u03af \u03bc\u03b5 \u03c4\u03bf online profiling, \u03c4\u03bf \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf guidance \u03ba\u03b1\u03b9 \u03c4\u03bf SFT anchor.<\/p>\n<h2 id=\"sft-anchor-statherotita\">\u03a4\u03bf SFT anchor \u03c9\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/h2>\n<p>\u0397 \u03ba\u03b1\u03b8\u03bf\u03b4\u03ae\u03b3\u03b7\u03c3\u03b7 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd plasticity, \u03b1\u03bb\u03bb\u03ac \u03b1\u03bb\u03bb\u03ac\u03b6\u03b5\u03b9 \u03bc\u03ad\u03c1\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03bc\u03ae\u03c2 \u03c0\u03c1\u03bf\u03c2 target-prefixed trajectories. \u0391\u03c5\u03c4\u03cc \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9 drift \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c7\u03b5\u03b9\u03c1\u03bf\u03c4\u03b5\u03c1\u03ad\u03c8\u03b5\u03b9 prompts \u03c0\u03bf\u03c5 \u03c4\u03bf \u03b1\u03c1\u03c7\u03b9\u03ba\u03cc SFT checkpoint \u03ad\u03bb\u03c5\u03bd\u03b5 \u03ae\u03b4\u03b7. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03af\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b1\u03bb\u03b9\u03bd\u03b4\u03c1\u03cc\u03bc\u03b7\u03c3\u03b7, \u03c4\u03bf DASO \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03b5\u03b9 token-level supervised loss \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae SID \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03af\u03b1, \u03bc\u03b5 \u03b2\u03ac\u03c1\u03bf\u03c2 0,1 \u03c3\u03c4\u03b1 \u03b1\u03bd\u03b1\u03c6\u03b5\u03c1\u03cc\u03bc\u03b5\u03bd\u03b1 \u03c0\u03b5\u03b9\u03c1\u03ac\u03bc\u03b1\u03c4\u03b1.<\/p>\n<p>\u03a7\u03c9\u03c1\u03af\u03c2 \u03c4\u03bf SFT anchor, \u03c4\u03bf aggregate HR@5 \u03ad\u03c0\u03b5\u03c3\u03b5 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03c4\u03ad\u03c3\u03c3\u03b5\u03c1\u03b9\u03c2 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b5\u03c2 \u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03b5\u03b9\u03c2. \u03a4\u03b1 Easy-bucket \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03ae\u03c4\u03b1\u03bd \u03bc\u03b9\u03ba\u03c4\u03ac: \u03c3\u03b5 \u03bc\u03af\u03b1 \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03b7 \u03c0\u03b1\u03c1\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c7\u03c9\u03c1\u03af\u03c2 anchor \u03ae\u03c4\u03b1\u03bd \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7. \u0397 \u03b1\u03c3\u03c6\u03b1\u03bb\u03ae\u03c2 \u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7, \u03cc\u03c7\u03b9 \u03b5\u03b3\u03b3\u03cd\u03b7\u03c3\u03b7 \u03cc\u03c4\u03b9 \u03ba\u03ac\u03b8\u03b5 \u03b5\u03cd\u03ba\u03bf\u03bb\u03bf prompt \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03cd\u03b5\u03c4\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c4\u03b1.<\/p>\n<p>\u0397 \u03b1\u03c1\u03c7\u03ae \u03b3\u03b5\u03bd\u03b9\u03ba\u03b5\u03cd\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03c3\u03b5 production personalization. \u038c\u03c4\u03b1\u03bd \u03bc\u03b9\u03b1 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03bc\u03cc\u03bd\u03bf \u03c4\u03b1 failures, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03b5\u03b9 \u03b1\u03bd \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03c3\u03b5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1, \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b5\u03c2 \u03ae \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03c3\u03b1\u03bd \u03c3\u03c9\u03c3\u03c4\u03ac. Regression suites \u03b1\u03bd\u03ac segment, shadow evaluation \u03ba\u03b1\u03b9 rollback criteria \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03be\u03af\u03c3\u03bf\u03c5 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf \u03bd\u03ad\u03bf objective. \u0397 \u03af\u03b4\u03b9\u03b1 \u03c0\u03b5\u03b9\u03b8\u03b1\u03c1\u03c7\u03af\u03b1 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd <a href=\"https:\/\/twodots.gr\/flavourbench-axiopisti-axiologisi-ai\/\">\u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b7 \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 AI<\/a>: \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc score \u03b4\u03b5\u03bd \u03b1\u03c1\u03ba\u03b5\u03af \u03c7\u03c9\u03c1\u03af\u03c2 \u03ba\u03ac\u03bb\u03c5\u03c8\u03b7 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03b1\u03c0\u03bf\u03c4\u03c5\u03c7\u03b9\u03ce\u03bd.<\/p>\n<h2 id=\"daso-apotelesmata\">\u03a4\u03b9 \u03ad\u03b4\u03b5\u03b9\u03be\u03b1\u03bd \u03c4\u03b1 \u03c0\u03b5\u03b9\u03c1\u03ac\u03bc\u03b1\u03c4\u03b1<\/h2>\n<p>\u039f\u03b9 \u03c3\u03c5\u03b3\u03b3\u03c1\u03b1\u03c6\u03b5\u03af\u03c2 \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b1\u03bd Qwen2.5-1.5B-Instruct \u03ba\u03b1\u03b9 Qwen2.5-3B-Instruct \u03c3\u03c4\u03b1 Amazon Reviews 2018 Office Products \u03ba\u03b1\u03b9 Industrial and Scientific. \u038c\u03bb\u03b5\u03c2 \u03bf\u03b9 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03b9 \u03be\u03b5\u03ba\u03af\u03bd\u03b7\u03c3\u03b1\u03bd \u03b1\u03c0\u03cc \u03ba\u03bf\u03b9\u03bd\u03cc SFT checkpoint, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b1\u03bd \u03c4\u03b1 \u03af\u03b4\u03b9\u03b1 fixed MiniOneRec SID assignments, constrained decoding \u03bc\u03b5 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf valid-SID trie \u03ba\u03b1\u03b9 \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 50 beams. \u03a4\u03b1 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 metrics \u03ae\u03c4\u03b1\u03bd HR@5, NDCG@5 \u03ba\u03b1\u03b9 HR@10.<\/p>\n<p>\u03a4\u03bf DASO \u03b2\u03b5\u03bb\u03c4\u03af\u03c9\u03c3\u03b5 \u03c4\u03bf MiniOneRec-style GRPO \u03c3\u03b5 11 \u03b1\u03c0\u03cc 12 metrics \u03ba\u03b1\u03b9 \u03c0\u03ad\u03c4\u03c5\u03c7\u03b5 \u03c4\u03b7\u03bd \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c4\u03b9\u03bc\u03ae \u03c3\u03b5 9 \u03b1\u03c0\u03cc 12. \u03a3\u03c4\u03bf Office Products, \u03c4\u03bf HR@5 \u03b1\u03c5\u03be\u03ae\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc 0,1420 \u03c3\u03b5 0,1639 \u03b3\u03b9\u03b1 \u03c4\u03bf 1.5B \u03ba\u03b1\u03b9 \u03b1\u03c0\u03cc 0,1313 \u03c3\u03b5 0,1683 \u03b3\u03b9\u03b1 \u03c4\u03bf 3B. \u03a3\u03c4\u03bf Industrial and Scientific \u03b1\u03c5\u03be\u03ae\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc 0,1321 \u03c3\u03b5 0,1421 \u03ba\u03b1\u03b9 \u03b1\u03c0\u03cc 0,1334 \u03c3\u03b5 0,1476 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b1.<\/p>\n<p>\u0397 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03c3\u03c4\u03b7\u03ba\u03b5 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ac \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03b5\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2. \u03a3\u03c4\u03bf Office Products \u03bc\u03b5 \u03c4\u03bf 1.5B, \u03c4\u03bf Hard HR@5 \u03b1\u03bd\u03ad\u03b2\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc 0,0331 \u03c3\u03b5 0,0624 \u03ba\u03b1\u03b9 \u03c4\u03bf Medium \u03b1\u03c0\u03cc 0,1224 \u03c3\u03b5 0,1693. \u039c\u03b5 \u03c4\u03bf 3B, \u03c4\u03bf Hard \u03b1\u03bd\u03ad\u03b2\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc 0,0252 \u03c3\u03b5 0,0521 \u03ba\u03b1\u03b9 \u03c4\u03bf Medium \u03b1\u03c0\u03cc 0,1472 \u03c3\u03b5 0,2102. \u03a4\u03b1 buckets \u03bf\u03c1\u03af\u03c3\u03c4\u03b7\u03ba\u03b1\u03bd \u03bc\u03af\u03b1 \u03c6\u03bf\u03c1\u03ac \u03c3\u03c4\u03bf frozen SFT checkpoint \u03ba\u03b1\u03b9 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03b8\u03b7\u03ba\u03b1\u03bd \u03bc\u03cc\u03bd\u03bf \u03b3\u03b9\u03b1 diagnostic evaluation, \u03cc\u03c7\u03b9 \u03c9\u03c2 training controller.<\/p>\n<p>\u03a3\u03c4\u03bf proprietary \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03cc dataset, \u03c4\u03bf Top-20 recall \u03c3\u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf SID level \u03b1\u03c5\u03be\u03ae\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc 47,21% \u03c3\u03b5 54,23% \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c4\u03bf\u03c5 GRPO baseline \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c4\u03b5\u03bb\u03b9\u03ba\u03cc level \u03b1\u03c0\u03cc 4,23% \u03c3\u03b5 4,67%. \u03a4\u03bf Top-20 recall \u03c3\u03c4\u03bf level 2 \u03ae\u03c4\u03b1\u03bd \u03b7 \u03b5\u03be\u03b1\u03af\u03c1\u03b5\u03c3\u03b7: 5,16% \u03bc\u03b5 DASO \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 5,23% \u03bc\u03b5 GRPO. \u0391\u03c5\u03c4\u03cc \u03c5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03b6\u03b5\u03b9 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b5\u03af\u03c3\u03bf\u03b4\u03bf \u03c3\u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc branch \u03ba\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03b1\u03bd\u03ac\u03ba\u03c4\u03b7\u03c3\u03b7, \u03cc\u03c7\u03b9 \u03bf\u03bc\u03bf\u03b9\u03cc\u03bc\u03bf\u03c1\u03c6\u03b7 \u03b2\u03b5\u03bb\u03c4\u03af\u03c9\u03c3\u03b7 \u03c3\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf.<\/p>\n<aside class=\"td-article-note\">\n<p><strong>\u038c\u03c1\u03b9\u03bf \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2:<\/strong> \u03c4\u03b1 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c9\u03c2 single runs \u03c7\u03c9\u03c1\u03af\u03c2 multi-seed significance tests. \u03a4\u03bf \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03cc dataset \u03b5\u03af\u03bd\u03b1\u03b9 proprietary, \u03b5\u03bd\u03ce \u03b7 \u03ba\u03cd\u03c1\u03b9\u03b1 \u03b4\u03b9\u03b1\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 training \u03ba\u03b1\u03b9 evaluation \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b5 8 NVIDIA A100 80GB GPUs.<\/p>\n<\/aside>\n<h2 id=\"oria-ecommerce\">\u03a4\u03b9 \u03b4\u03b5\u03bd \u03b1\u03c0\u03bf\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03b5\u03b9 \u03c4\u03bf paper \u03b3\u03b9\u03b1 \u03c4\u03bf e-commerce<\/h2>\n<p>\u03a4\u03bf paper \u03bc\u03b5\u03c4\u03c1\u03ac recommendation accuracy \u03ba\u03b1\u03b9 recall. \u0394\u03b5\u03bd \u03bc\u03b5\u03c4\u03c1\u03ac revenue, conversion rate, basket size, margin, retention \u03ae customer lifetime value. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2 \u03b4\u03b5\u03bd \u03b1\u03c0\u03bf\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03c5\u03b9\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 DASO \u03b8\u03b1 \u03b1\u03c5\u03be\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03c0\u03c9\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03bf\u03cd \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2. \u039a\u03ac\u03b8\u03b5 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03ae \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03cc online experiment \u03bc\u03b5 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1 guardrails.<\/p>\n<p>\u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03b4\u03b5\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 plugin \u03c0\u03bf\u03c5 \u03b5\u03b3\u03ba\u03b1\u03b8\u03af\u03c3\u03c4\u03b1\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03bf\u03c0\u03bf\u03b9\u03bf\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 e-shop. \u03a0\u03c1\u03bf\u03cb\u03c0\u03bf\u03b8\u03ad\u03c4\u03b5\u03b9 Semantic IDs, fixed catalog mapping, constrained decoding, SFT checkpoint, GRPO \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae \u03ba\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c0\u03cc\u03c1\u03bf\u03c5\u03c2. \u0397 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c0\u03c1\u03ce\u03c4\u03b1 \u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7\u03bd \u03c0\u03bf\u03bb\u03c5\u03c0\u03bb\u03bf\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5 \u03b1\u03c0\u03bb\u03bf\u03cd\u03c3\u03c4\u03b5\u03c1\u03b1 baselines, \u03c4\u03b9\u03c2 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03c9\u03bd \u03c5\u03c0\u03b1\u03c1\u03c7\u03bf\u03c5\u03c3\u03ce\u03bd <a href=\"https:\/\/twodots.gr\/ta-kalytera-logismika-exatomikeysis-gia-ilektroniko-emporio\/\">\u03c0\u03bb\u03b1\u03c4\u03c6\u03bf\u03c1\u03bc\u03ce\u03bd \u03b5\u03be\u03b1\u03c4\u03bf\u03bc\u03af\u03ba\u03b5\u03c5\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03cc \u03b5\u03bc\u03c0\u03cc\u03c1\u03b9\u03bf<\/a> \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03bb\u03cc\u03b3\u03bf\u03c5.<\/p>\n<p>\u03a5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03b1\u03ba\u03cc\u03bc\u03b7 trade-off \u03c3\u03c4\u03b1 Easy prompts. \u03a4\u03bf SFT-only checkpoint \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc \u03c3\u03c4\u03b9\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03ae\u03b4\u03b7 \u03ad\u03c6\u03b5\u03c1\u03bd\u03b5 \u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc item, \u03b5\u03bd\u03ce \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 bucket-level scores \u03bc\u03b5\u03b9\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5\u03c4\u03ac \u03c4\u03bf RL. \u039c\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03bf\u03b9\u03c4\u03ac aggregate \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03b1\u03bd\u03ac segment, \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b1, \u03bd\u03ad\u03bf \u03ae \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03cc\u03bc\u03b5\u03bd\u03bf \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7, head \u03ba\u03b1\u03b9 long-tail \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1.<\/p>\n<div class=\"td-decision-band\">\n<div class=\"td-decision-band-content\">\n<p class=\"td-decision-band-kicker\">\u0397 \u03b1\u03c0\u03cc\u03c6\u03b1\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1 e-shop<\/p>\n<p class=\"td-decision-band-title\">\u039c\u03b7\u03bd \u03be\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03c4\u03b5 \u03b1\u03c0\u03cc \u03c4\u03bf DASO\u00b7 \u03be\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03c4\u03b5 \u03b1\u03c0\u03cc \u03c4\u03bf \u03bc\u03b5\u03c4\u03c1\u03b7\u03bc\u03ad\u03bd\u03bf failure mode<\/p>\n<p>\u03a0\u03c1\u03bf\u03c7\u03c9\u03c1\u03ae\u03c3\u03c4\u03b5 \u03bc\u03cc\u03bd\u03bf \u03b1\u03bd \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ac Semantic IDs \u03b5\u03ba\u03c6\u03c1\u03ac\u03b6\u03bf\u03c5\u03bd \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03c3\u03c5\u03b3\u03b3\u03ad\u03bd\u03b5\u03b9\u03b1, \u03c4\u03b1 rollout groups \u03c7\u03ac\u03bd\u03bf\u03c5\u03bd \u03c3\u03c5\u03c7\u03bd\u03ac \u03c4\u03bf target branch \u03ba\u03b1\u03b9 \u03c4\u03bf offline gain \u03b5\u03c0\u03b9\u03b2\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c3\u03b5 segment regressions. \u039c\u03b5\u03c4\u03ac \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b9\u03ba\u03c1\u03cc online experiment \u03bc\u03b5 revenue guardrails, latency budget \u03ba\u03b1\u03b9 \u03b1\u03c3\u03c6\u03b1\u03bb\u03ad\u03c2 rollback.<\/p>\n<\/div>\n<\/div>\n<p>\u0397 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 recommender \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03bc\u03cc\u03bd\u03bf \u03bc\u03ad\u03c1\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1\u03c2. \u0397 \u03b4\u03bf\u03bc\u03ae \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03b9\u03ce\u03bd, \u03c4\u03b1 \u03c6\u03af\u03bb\u03c4\u03c1\u03b1, \u03b7 \u03b4\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1, \u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf mobile UX \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03ba\u03c5\u03c1\u03ce\u03c3\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1 \u03ba\u03b1\u03bb\u03cc ranking. \u03a4\u03bf <a href=\"https:\/\/twodots.gr\/greek-business-website-eshop-benchmark-2026\/\">Greek Business Website &amp; eShop Benchmark 2026<\/a> \u0438 <a href=\"https:\/\/twodots.gr\/seo-gia-ecommerce-basika-bemata\/\">SEO \u0437\u0430 \u0435\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u0430 \u0442\u044a\u0440\u0433\u043e\u0432\u0438\u044f<\/a> \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03b3\u03b9\u03b1\u03c4\u03af \u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c5\u03c1\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b1\u03b6\u03af \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03be\u03b1\u03c4\u03bf\u03bc\u03af\u03ba\u03b5\u03c5\u03c3\u03b7.<\/p>\n<h2 id=\"praktiko-pilot-recommendation\">\u03a0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc pilot \u03b3\u03b9\u03b1 recommendation teams<\/h2>\n<p>\u03a4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc pilot \u03b4\u03b5\u03bd \u03be\u03b5\u03ba\u03b9\u03bd\u03ac \u03bc\u03b5 \u03c0\u03bb\u03ae\u03c1\u03b7 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03bd\u03c4\u03bf\u03c2 recommender. \u039e\u03b5\u03ba\u03b9\u03bd\u03ac \u03bc\u03b5 \u03ad\u03bd\u03b1 versioned snapshot \u03ba\u03b1\u03c4\u03b1\u03bb\u03cc\u03b3\u03bf\u03c5, \u03ba\u03bf\u03b9\u03bd\u03cc evaluation set \u03ba\u03b1\u03b9 \u03c3\u03b1\u03c6\u03ae \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 SFT, vanilla GRPO \u03ba\u03b1\u03b9 DASO. \u0397 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 GRID \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03c5\u03c0\u03b5\u03bd\u03b8\u03c5\u03bc\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bc\u03b9\u03ba\u03c1\u03ad\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 hyperparameter \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03c3\u03bf\u03c5\u03bd \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03c4\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1, \u03ac\u03c1\u03b1 \u03b7 \u03c0\u03b5\u03b9\u03c1\u03b1\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b1\u03c0\u03bf\u03bc\u03cc\u03bd\u03c9\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7.<\/p>\n<div class=\"td-step-list\">\n<p class=\"td-step-list-title\">\u0395\u03c0\u03c4\u03ac \u03b2\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03b5\u03bb\u03b5\u03b3\u03c7\u03cc\u03bc\u03b5\u03bd\u03bf DASO pilot<\/p>\n<ol>\n<li><span class=\"td-step-kicker\">\u0421\u0442\u044a\u043f\u043a\u0430 1<\/span><strong>\u039f\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf recommendation event<\/strong>\n<p>\u039a\u03b1\u03b8\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 user context, \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03cc \u03c0\u03b1\u03c1\u03ac\u03b8\u03c5\u03c1\u03bf, target item \u03ba\u03b1\u03b9 \u03ba\u03b1\u03bd\u03cc\u03bd\u03b5\u03c2 \u03b1\u03c0\u03bf\u03ba\u03bb\u03b5\u03b9\u03c3\u03bc\u03bf\u03cd, \u03ce\u03c3\u03c4\u03b5 \u03c4\u03bf label \u03bd\u03b1 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03c3\u03b5 training \u03ba\u03b1\u03b9 evaluation.<\/p>\n<\/li>\n<li><span class=\"td-step-kicker\">\u0421\u0442\u044a\u043f\u043a\u0430 2<\/span><strong>\u0395\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b9\u03b5\u03c1\u03b1\u03c1\u03c7\u03af\u03b1 \u03c4\u03c9\u03bd Semantic IDs<\/strong>\n<p>\u039c\u03b5\u03c4\u03c1\u03ae\u03c3\u03c4\u03b5 collisions, \u03b1\u03c3\u03c4\u03ac\u03b8\u03b5\u03b9\u03b1 mappings \u03ba\u03b1\u03b9 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03c3\u03b7\u03bc\u03b1\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03c3\u03c5\u03b3\u03b3\u03ad\u03bd\u03b5\u03b9\u03b1 \u03b1\u03bd\u03ac prefix. \u0391\u03bd \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf token \u03b4\u03b5\u03bd \u03bf\u03c1\u03af\u03b6\u03b5\u03b9 \u03c7\u03c1\u03ae\u03c3\u03b9\u03bc\u03bf branch, \u03c4\u03bf prefix reward \u03b4\u03b5\u03bd \u03ad\u03c7\u03b5\u03b9 \u03c3\u03c9\u03c3\u03c4\u03cc \u03bd\u03cc\u03b7\u03bc\u03b1.<\/p>\n<\/li>\n<li><span class=\"td-step-kicker\">\u0421\u0442\u044a\u043f\u043a\u0430 3<\/span><strong>\u039a\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03c3\u03c4\u03b5 \u03ba\u03bf\u03b9\u03bd\u03cc SFT baseline<\/strong>\n<p>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf checkpoint, valid-SID trie, decoding budget \u03ba\u03b1\u03b9 chronological split \u03b3\u03b9\u03b1 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 post-training \u03c0\u03b1\u03c1\u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2.<\/p>\n<\/li>\n<li><span class=\"td-step-kicker\">\u0421\u0442\u044a\u043f\u043a\u0430 4<\/span><strong>\u039c\u03b5\u03c4\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf target-missing \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1<\/strong>\n<p>\u03a0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ae\u03c3\u03c4\u03b5 exact-hit, partial-prefix \u03ba\u03b1\u03b9 no-prefix prompts, \u03bc\u03b1\u03b6\u03af \u03bc\u03b5 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03bc\u03ae prefix-match depth \u03b1\u03bd\u03ac \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b1 \u03ba\u03b1\u03b9 segment \u03c7\u03c1\u03b7\u03c3\u03c4\u03ce\u03bd.<\/p>\n<\/li>\n<li><span class=\"td-step-kicker\">\u0421\u0442\u044a\u043f\u043a\u0430 5<\/span><strong>\u03a4\u03c1\u03ad\u03be\u03c4\u03b5 \u03b5\u03bb\u03b5\u03b3\u03c7\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 ablations<\/strong>\n<p>\u03a3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03c4\u03b5 online profiling, prefix reward, guided budget \u03ba\u03b1\u03b9 SFT anchor \u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03ac, \u03bc\u03b5 \u03af\u03b4\u03b9\u03bf training budget \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03ae\u03c8\u03b5\u03b9\u03c2 \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 seeds.<\/p>\n<\/li>\n<li><span class=\"td-step-kicker\">\u0421\u0442\u044a\u043f\u043a\u0430 6<\/span><strong>\u0395\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 regressions \u03ba\u03b1\u03b9 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2<\/strong>\n<p>\u039c\u03b5\u03c4\u03c1\u03ae\u03c3\u03c4\u03b5 head \u03ba\u03b1\u03b9 long-tail items, Easy prompts, latency, GPU \u03c7\u03c1\u03cc\u03bd\u03bf, catalog refresh \u03ba\u03b1\u03b9 failures \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03ae \u03ba\u03b1\u03c4\u03ac\u03c1\u03b3\u03b7\u03c3\u03b7 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd.<\/p>\n<\/li>\n<li><span class=\"td-step-kicker\">\u0421\u0442\u044a\u043f\u043a\u0430 7<\/span><strong>\u03a0\u03b5\u03c1\u03ac\u03c3\u03c4\u03b5 \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf online test<\/strong>\n<p>\u039e\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03c4\u03b5 \u03bc\u03b5 \u03bc\u03b9\u03ba\u03c1\u03cc traffic allocation, guardrails \u03b3\u03b9\u03b1 conversion, margin \u03ba\u03b1\u03b9 diversity, audit logs \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf rollback \u03c3\u03c4\u03bf baseline.<\/p>\n<\/li>\n<\/ol>\n<\/div>\n<p>\u0397 <a href=\"https:\/\/twodots.gr\/full-stack-ai-integrated-digital-products\/\">full-stack AI \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae<\/a> \u03ad\u03c7\u03b5\u03b9 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03b5\u03b4\u03ce: \u03c4\u03bf model objective, \u03bf product catalog, \u03c4\u03bf serving layer, \u03c4\u03b1 analytics \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1 \u03c4\u03bf\u03c5 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03ba\u03b4\u03af\u03b4\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03b5\u03bd\u03b9\u03b1\u03af\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1. \u0388\u03bd\u03b1 offline HR@5 gain \u03b4\u03b5\u03bd \u03ad\u03c7\u03b5\u03b9 \u03b1\u03be\u03af\u03b1 \u03b1\u03bd \u03c4\u03bf catalog mapping \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b1\u03bb\u03b9\u03cc, \u03c4\u03bf \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c1\u03b3\u03ac \u03ae \u03b7 \u03c0\u03c1\u03cc\u03c4\u03b1\u03c3\u03b7 \u03b1\u03b3\u03bd\u03bf\u03b5\u03af \u03b4\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2.<\/p>\n<h2 id=\"daso-ai-personalization\">\u03a4\u03b9 \u03ba\u03c1\u03b1\u03c4\u03ac\u03bc\u03b5 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd AI personalization<\/h2>\n<p>\u03a4\u03bf \u03b5\u03c5\u03c1\u03cd\u03c4\u03b5\u03c1\u03bf \u03bc\u03ac\u03b8\u03b7\u03bc\u03b1 \u03c4\u03bf\u03c5 DASO \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1\u03bd \u03b4\u03bf\u03bc\u03b7\u03bc\u03ad\u03bd\u03bf \u03c7\u03ce\u03c1\u03bf \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03c9\u03bd \u03c4\u03bf \u00ab\u03bb\u03ac\u03b8\u03bf\u03c2\u00bb \u03b4\u03b5\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c4\u03b1 \u03bc\u03af\u03b1 \u03b5\u03bd\u03b9\u03b1\u03af\u03b1 \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b1. \u039c\u03b9\u03b1 \u03c0\u03c1\u03cc\u03b2\u03bb\u03b5\u03c8\u03b7 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03bf\u03bd\u03c4\u03ac \u03ae \u03bc\u03b1\u03ba\u03c1\u03b9\u03ac \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03bb\u03cd\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b7 \u03b4\u03bf\u03bc\u03ae \u03c4\u03bf\u03c5 output \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03b5\u03bd\u03b4\u03b9\u03ac\u03bc\u03b5\u03c3\u03bf \u03c3\u03ae\u03bc\u03b1. \u0397 \u03b1\u03be\u03af\u03b1 \u03b4\u03b5\u03bd \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1\u03bd \u03b3\u03b5\u03bd\u03b9\u03ba\u03cc difficulty score, \u03b1\u03bb\u03bb\u03ac \u03c3\u03b5 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b9\u03bc\u03bf progress \u03bc\u03ad\u03c3\u03b1 \u03c3\u03b5 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7 \u03b9\u03b5\u03c1\u03b1\u03c1\u03c7\u03af\u03b1.<\/p>\n<p>\u0393\u03b9\u03b1 marketers \u03ba\u03b1\u03b9 e-commerce owners, \u03b1\u03c5\u03c4\u03cc \u03bc\u03b5\u03c4\u03b1\u03c6\u03c1\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b1\u03c0\u03b1\u03af\u03c4\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03b8\u03b5\u03bc\u03ad\u03bb\u03b9\u03b1: \u03ba\u03b1\u03b8\u03b1\u03c1\u03cc catalog taxonomy, \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ac identifiers, \u03c3\u03c5\u03bd\u03b5\u03c0\u03ae analytics \u03ba\u03b1\u03b9 evaluation \u03c0\u03bf\u03c5 \u03c7\u03c9\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03b1 segments. \u0397 <a href=\"https:\/\/twodots.gr\/kataskevi-eshop\/\">\u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03b5\u03bd\u03cc\u03c2 e-shop<\/a> \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03be\u03b9\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9 advanced personalization \u03be\u03b5\u03ba\u03b9\u03bd\u03ac \u03b1\u03c0\u03cc \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 product \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ae \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1 \u03b1\u03bd\u03b1\u03b6\u03ae\u03c4\u03b7\u03c3\u03b7\u03c2, \u03cc\u03c7\u03b9 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 training acronym.<\/p>\n<p>\u03a4\u03bf DASO \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b5\u03ba\u03bc\u03b7\u03c1\u03b9\u03c9\u03bc\u03ad\u03bd\u03bf \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd training loop \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b3\u03b5\u03c9\u03bc\u03b5\u03c4\u03c1\u03af\u03b1 \u03c4\u03bf\u03c5 recommendation problem. \u0394\u03b5\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03ba\u03cc\u03bc\u03b7 \u03b3\u03b5\u03bd\u03b9\u03ba\u03ae \u03c3\u03c5\u03bd\u03c4\u03b1\u03b3\u03ae \u03b3\u03b9\u03b1 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03ae \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03af\u03b1. \u0397 \u03ce\u03c1\u03b9\u03bc\u03b7 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03b5\u03c0\u03b9\u03b2\u03b5\u03b2\u03b1\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03bf failure mode, \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c0\u03bb\u03bf\u03cd\u03c3\u03c4\u03b5\u03c1\u03b1 baselines, \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03cd\u03b5\u03b9 \u03cc\u03c3\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b4\u03ad\u03b5\u03b9 \u03ba\u03ac\u03b8\u03b5 online \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03bc\u03b5 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b9\u03bc\u03b7 \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7.<\/p>\n<section class=\"td-service-cta\">\n<div class=\"td-service-cta-content\">\n<p class=\"td-service-cta-kicker\">\u0391\u03c0\u03cc \u03c4\u03bf recommendation research \u03c3\u03b5 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b9\u03bc\u03bf pilot<\/p>\n<p class=\"td-service-cta-title\">\u03a3\u03c7\u03b5\u03b4\u03b9\u03ac\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd AI personalization \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 guardrails<\/p>\n<p>\u0397 TWO DOTS \u03c7\u03b1\u03c1\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b5\u03af catalog data, baselines, evaluation segments, integrations \u03ba\u03b1\u03b9 online KPIs, \u03ce\u03c3\u03c4\u03b5 \u03ad\u03bd\u03b1 AI recommendation workflow \u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b5\u03af \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03ba\u03b9\u03bd\u03b4\u03c5\u03bd\u03b5\u03cd\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c0\u03c9\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5 e-shop.<\/p>\n<div class=\"td-service-cta-actions\"><a class=\"td-service-cta-button\" href=\"https:\/\/twodots.gr\/aftomatismoi-epicheiriseon-ai\/\">\u03a3\u03c5\u03b6\u03b7\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf AI pilot \u03c3\u03b1\u03c2<\/a><\/div>\n<\/div>\n<\/section>\n<section id=\"sychnes-erotiseis\" class=\"td-faq-section\">\n<div class=\"td-faq\">\n<p class=\"td-faq-heading\">\u0427\u0435\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u043d\u0438 \u0432\u044a\u043f\u0440\u043e\u0441\u0438<\/p>\n<details class=\"td-faq-item\">\n<summary class=\"td-faq-title\">\u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf generative recommendation;<\/summary>\n<div class=\"td-faq-content\">\n<p>\u0395\u03af\u03bd\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c3\u03ad\u03b3\u03b3\u03b9\u03c3\u03b7 \u03cc\u03c0\u03bf\u03c5 \u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03b1\u03c0\u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \u03c4\u03bf \u03b1\u03bd\u03b1\u03b3\u03bd\u03c9\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c4\u03b5\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03bf\u03c5 item \u03b1\u03c0\u03cc \u03c4\u03bf context \u03c4\u03bf\u03c5 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7, \u03b1\u03bd\u03c4\u03af \u03bd\u03b1 \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03b5\u03af \u03bc\u03cc\u03bd\u03bf \u03bc\u03b9\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03bb\u03af\u03c3\u03c4\u03b1 \u03c5\u03c0\u03bf\u03c8\u03b7\u03c6\u03af\u03c9\u03bd.<\/p>\n<\/div>\n<\/details>\n<details class=\"td-faq-item\">\n<summary class=\"td-faq-title\">\u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 Semantic ID;<\/summary>\n<div class=\"td-faq-content\">\n<p>\u0395\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03c3\u03cd\u03bd\u03c4\u03bf\u03bc\u03b7 \u03b9\u03b5\u03c1\u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03af\u03b1 \u03b4\u03b9\u03b1\u03ba\u03c1\u03b9\u03c4\u03ce\u03bd tokens \u03c0\u03bf\u03c5 \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03b9\u03c3\u03c4\u03ac \u03ad\u03bd\u03b1 item. \u03a3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac items \u03b5\u03c0\u03b9\u03b4\u03b9\u03ce\u03ba\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03bc\u03bf\u03b9\u03c1\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ac \u03c4\u03bc\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03af\u03b1\u03c2.<\/p>\n<\/div>\n<\/details>\n<details class=\"td-faq-item\">\n<summary class=\"td-faq-title\">\u03a0\u03bf\u03b9\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03bb\u03cd\u03bd\u03b5\u03b9 \u03c4\u03bf DASO;<\/summary>\n<div class=\"td-faq-content\">\n<p>\u03a3\u03c4\u03bf\u03c7\u03b5\u03cd\u03b5\u03b9 \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 GRPO \u03cc\u03c0\u03bf\u03c5 \u03b4\u03b5\u03bd \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc item \u03ba\u03b1\u03b9 \u03c4\u03b1 item-level rewards \u03b4\u03b5\u03bd \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03b5\u03c0\u03b1\u03c1\u03ba\u03ce\u03c2 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03bf\u03c4\u03c5\u03c7\u03af\u03b5\u03c2. \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03bf prefix depth \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03cd\u03bd\u03b5\u03b9 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf guidance \u03c3\u03c4\u03bf bottleneck.<\/p>\n<\/div>\n<\/details>\n<details class=\"td-faq-item\">\n<summary class=\"td-faq-title\">\u03a0\u03ce\u03c2 \u03b1\u03c0\u03bf\u03c6\u03b1\u03c3\u03af\u03b6\u03b5\u03b9 \u03c0\u03cc\u03c3\u03b7 \u03ba\u03b1\u03b8\u03bf\u03b4\u03ae\u03b3\u03b7\u03c3\u03b7 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9;<\/summary>\n<div class=\"td-faq-content\">\n<p>\u039c\u03b5\u03c4\u03c1\u03ac online \u03c4\u03bf \u03bc\u03ad\u03c3\u03bf prefix-match depth \u03c4\u03b7\u03c2 \u03c4\u03c1\u03ad\u03c7\u03bf\u03c5\u03c3\u03b1\u03c2 \u03bf\u03bc\u03ac\u03b4\u03b1\u03c2. \u038c\u03c3\u03bf \u03c0\u03b9\u03bf \u03bc\u03b1\u03ba\u03c1\u03b9\u03ac \u03b2\u03c1\u03af\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b1 rollouts \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae SID \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae, \u03c4\u03cc\u03c3\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03ce\u03bd\u03b5\u03b9 \u03c4\u03bf guided budget, \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03bf \u03c0\u03c1\u03bf\u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03cc\u03c1\u03b9\u03bf.<\/p>\n<\/div>\n<\/details>\n<details class=\"td-faq-item\">\n<summary class=\"td-faq-title\">\u0393\u03b9\u03b1\u03c4\u03af \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b5\u03af raw rollouts;<\/summary>\n<div class=\"td-faq-content\">\n<p>\u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03bf GRPO \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 on-policy \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7. \u03a4\u03bf DASO \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ac \u03bc\u03cc\u03bd\u03bf \u03c4\u03b1 \u03c0\u03b9\u03bf \u03b1\u03b4\u03cd\u03bd\u03b1\u03bc\u03b1 raw completions \u03ba\u03b1\u03b9 \u03ba\u03c1\u03b1\u03c4\u03ac \u03c4\u03b1 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1, \u03ce\u03c3\u03c4\u03b5 \u03b7 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03bd\u03b1 \u03bc\u03b7\u03bd \u03b3\u03af\u03bd\u03b5\u03b9 \u03c0\u03bb\u03ae\u03c1\u03c9\u03c2 teacher-forced.<\/p>\n<\/div>\n<\/details>\n<details class=\"td-faq-item\">\n<summary class=\"td-faq-title\">\u03a4\u03b9 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03c4\u03bf SFT anchor;<\/summary>\n<div class=\"td-faq-content\">\n<p>\u03a0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03b5\u03b9 supervised loss \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae SID \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b2\u03bf\u03b7\u03b8\u03ac \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03c4\u03b5\u03af \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc drift, \u03b5\u03bd\u03ce \u03c4\u03b1 guided rollouts \u03b5\u03c3\u03c4\u03b9\u03ac\u03b6\u03bf\u03c5\u03bd \u03c3\u03c4\u03b9\u03c2 target-missing \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2.<\/p>\n<\/div>\n<\/details>\n<details class=\"td-faq-item\">\n<summary class=\"td-faq-title\">\u0391\u03c0\u03bf\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03b5\u03b9 \u03c4\u03bf paper \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c0\u03c9\u03bb\u03ae\u03c3\u03b5\u03c9\u03bd;<\/summary>\n<div class=\"td-faq-content\">\n<p>\u038c\u03c7\u03b9. \u0391\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03b5\u03af HR, NDCG \u03ba\u03b1\u03b9 level-wise recall \u03c3\u03b5 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b1 datasets. Conversion, revenue \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03b1 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03ac \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03cc online experiment.<\/p>\n<\/div>\n<\/details>\n<details class=\"td-faq-item\">\n<summary class=\"td-faq-title\">\u0395\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf DASO \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf \u03b3\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 e-shop;<\/summary>\n<div class=\"td-faq-content\">\n<p>\u038c\u03c7\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b1. \u0391\u03c0\u03b1\u03b9\u03c4\u03b5\u03af generative recommendation \u03c5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ae, \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ac Semantic IDs, SFT \u03ba\u03b1\u03b9 GRPO. \u0388\u03c7\u03b5\u03b9 \u03bd\u03cc\u03b7\u03bc\u03b1 \u03bc\u03cc\u03bd\u03bf \u03b1\u03bd \u03c4\u03bf target-missing failure mode \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03ba\u03b1\u03b9 \u03c4\u03bf \u03cc\u03c6\u03b5\u03bb\u03bf\u03c2 \u03b4\u03b9\u03ba\u03b1\u03b9\u03bf\u03bb\u03bf\u03b3\u03b5\u03af \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/section>\n<div class=\"td-source-list\">\n<p id=\"piges\" class=\"td-source-list-title\">\u0418\u0437\u0442\u043e\u0447\u043d\u0438\u0446\u0438<\/p>\n<ul>\n<li><a href=\"https:\/\/arxiv.org\/abs\/2608.20611\" target=\"_blank\" rel=\"noopener\">Yu et al. \u2014 Difficulty-Aware Semantic-ID Optimization for Generative Recommendation: abstract \u03ba\u03b1\u03b9 metadata \u03c3\u03c4\u03bf arXiv<\/a><\/li>\n<li><a href=\"https:\/\/arxiv.org\/html\/2608.20611v1\" target=\"_blank\" rel=\"noopener\">Yu et al. \u2014 \u03a0\u03bb\u03ae\u03c1\u03b5\u03c2 DASO paper \u03bc\u03b5 \u03bc\u03b5\u03b8\u03bf\u03b4\u03bf\u03bb\u03bf\u03b3\u03af\u03b1, \u03c0\u03b5\u03b9\u03c1\u03ac\u03bc\u03b1\u03c4\u03b1, ablations \u03ba\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2<\/a><\/li>\n<li><a href=\"https:\/\/raw.githubusercontent.com\/LucasXinYu\/DASO\/main\/README.md\" target=\"_blank\" rel=\"noopener\">DASO \u2014 \u0395\u03c0\u03af\u03c3\u03b7\u03bc\u03bf README \u03c4\u03bf\u03c5 \u03b1\u03c0\u03bf\u03b8\u03b5\u03c4\u03b7\u03c1\u03af\u03bf\u03c5 \u03ba\u03ce\u03b4\u03b9\u03ba\u03b1 \u03bc\u03b5 public datasets \u03ba\u03b1\u03b9 paper-facing training scripts<\/a><\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/2507.22224\" target=\"_blank\" rel=\"noopener\">Snap Research \u2014 Generative Recommendation with Semantic IDs: A Practitioner\u2019s Handbook<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u03a4\u03bf DASO \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af Semantic IDs, online prefix profiling \u03ba\u03b1\u03b9 guided rollouts \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03bd\u03b9\u03c3\u03c7\u03cd\u03c3\u03b5\u03b9 \u03c4\u03b1 target-missing prompts \u03c3\u03c4\u03bf generative recommendation.<\/p>","protected":false},"author":1,"featured_media":97812,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","content-type":"","footnotes":""},"categories":[199],"tags":[20423,6811,20421,18034,20422],"class_list":["post-97146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-techniti-noimosyni","tag-daso","tag-e-commerce-ai","tag-generative-recommendation","tag-reinforcement-learning","tag-semantic-ids"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"_links":{"self":[{"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/posts\/97146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/comments?post=97146"}],"version-history":[{"count":1,"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/posts\/97146\/revisions"}],"predecessor-version":[{"id":97813,"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/posts\/97146\/revisions\/97813"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/media\/97812"}],"wp:attachment":[{"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/media?parent=97146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/categories?post=97146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/twodots.gr\/bg\/wp-json\/wp\/v2\/tags?post=97146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}