{"id":3430,"date":"2025-06-15T21:08:29","date_gmt":"2025-06-15T13:08:29","guid":{"rendered":"https:\/\/www.15zhi.net\/blog\/?p=3430"},"modified":"2025-06-15T21:08:29","modified_gmt":"2025-06-15T13:08:29","slug":"202506-%e8%ae%ba%e6%96%87%e7%a0%94%e8%af%bb-beyond-item-dissimilarities-diversifying-by-intent-in-recommender-systems","status":"publish","type":"post","link":"https:\/\/www.15zhi.net\/blog\/202506-%e8%ae%ba%e6%96%87%e7%a0%94%e8%af%bb-beyond-item-dissimilarities-diversifying-by-intent-in-recommender-systems\/","title":{"rendered":"202506 \u8bba\u6587\u7814\u8bfb-Beyond Item Dissimilarities: Diversifying by Intent in Recommender Systems"},"content":{"rendered":"\n

\u6765\u6e90\uff1aACM SIGKDD
\u4f5c\u8005\uff1aYuyan Wang, Cheenar Banerjee\u7b49
\u5355\u4f4d\uff1aStanford University\u3001Google, Inc.
\u53d1\u8868\u65f6\u95f4\uff1a2025 \u5e74 2\u6708<\/p>\n\n\n\n

\u4e00\u3001\u7814\u7a76\u80cc\u666f<\/h2>\n\n\n\n
    \n
  1. \u63a8\u8350\u7cfb\u7edf\u5b58\u5728\u7684\u95ee\u9898\uff1a
    \u4e3b\u6d41\u63a8\u8350\u7cfb\u7edf\u4f18\u5316\u7684\u662f\u77ed\u671f\u884c\u4e3a\u6307\u6807\uff08\u5982\u70b9\u51fb\u7387\u3001\u505c\u7559\u65f6\u95f4\uff09\u3002
    \u56de\u97f3\u5ba4\u6548\u5e94\uff08Echo Chamber\uff09
    \u5174\u8da3\u5c01\u95ed\uff08Pigeon-holing\uff09
    \u7528\u6237\u63a2\u7d22\u53d7\u9650 \u2192 \u964d\u4f4e\u7528\u6237\u957f\u671f\u6ee1\u610f\u5ea6\u4e0e\u6d3b\u8dc3\u5ea6<\/li>\n\n\n\n
  2. \u4f20\u7edf\u591a\u6837\u5316\u63a8\u8350\u7684\u5c40\u9650
    \u73b0\u6709\u591a\u6837\u5316\u65b9\u6cd5\u591a\u4e3a item-level\uff08\u5982\u6700\u5927\u5316\u7269\u54c1\u4e4b\u95f4\u7684\u4e0d\u76f8\u4f3c\u6027\uff09\uff1a
    \u5ffd\u7565\u4e86\u7528\u6237\u771f\u6b63\u7684\u884c\u4e3a\u52a8\u673a —->\u201c\u4e3a\u4ec0\u4e48\u70b9\u8fd9\u4e2a item\uff1f\u201d
    \u7ed3\u679c\u662f\u201c\u8868\u9762\u591a\u6837\u201d\uff0c\u4f46\u4e0d\u4e00\u5b9a\u771f\u6b63\u6ee1\u8db3\u7528\u6237\u591a\u91cd\u5174\u8da3\u3002<\/li>\n\n\n\n
  3. \u7528\u6237\u884c\u4e3a\u7531\u591a\u79cd\u610f\u56fe\uff08intent\uff09\u9a71\u52a8\uff0c\u5982\uff1a
    \u60f3\u5b66\u4e60 \u2192 \u70b9\u6559\u7a0b\u7c7b\uff1b
    \u60f3\u653e\u677e \u2192 \u70b9\u641e\u7b11\u7c7b\uff1b<\/li>\n<\/ol>\n\n\n\n

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    \u63a8\u8350\u7cfb\u7edf\u5e94\u786e\u4fdd\u9875\u9762\u4e0a\u591a\u4e2a\u7528\u6237\u610f\u56fe\u90fd\u88ab\u8986\u76d6\uff0c\u800c\u4e0d\u662f\u4ec5\u4ec5\u662f\u5185\u5bb9\u4e3b\u9898\u4e0d\u540c\u3002<\/p>\n\n\n\n

    \u4e8c\u3001\u610f\u56fe\u591a\u6837\u6027\u65b9\u6cd5<\/h2>\n\n\n\n

    \u7528\u6237\u610f\u56fe\u5efa\u6a21<\/h3>\n\n\n\n

    \u6784\u5efa\u4e00\u4e2a\u5b9e\u65f6\u9884\u6d4b\u6a21\u578b\uff0c\u4f30\u8ba1\u7528\u6237i\u5728\u5f53\u524d\u63a8\u8350\u9875\u4e2d\u5177\u6709\u5404\u7c7b\u610f\u56fe v\u2208V \u7684\u6982\u7387 Pr(v\u2223i)\uff1a<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    \u4e0b\u9762\u662f\u5177\u4f53\u7684\u6a21\u578b\u56fe\uff1a<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    \u591a\u6837\u5316\u7b97\u6cd5<\/h3>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
      <\/ol>\n\n\n\n

      \u4e09\u3001\u5b9e\u9a8c<\/h2>\n\n\n\n

      \u57fa\u672c\u8bbe\u7f6e<\/h3>\n\n\n\n

      \u5b9e\u9a8c\u5e73\u53f0\u4e0e\u80cc\u666f\uff1a
      \u573a\u666f\uff1aYouTube \u9996\u9875\u63a8\u8350\uff08landing page\uff09
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      \u5b9e\u9a8c\u65b9\u5f0f\uff1a\u7ebf\u4e0a A\/B \u6d4b\u8bd5<\/p>\n\n\n\n

      \u7ec4\u522b<\/td>\u8bf4\u660e<\/td><\/tr>
      Treatment<\/td>\u539f\u6709\u7cfb\u7edf + \u672c\u6587\u7684\u610f\u56fe\u591a\u6837\u5316\u6392\u5e8f\u6a21\u5757<\/td><\/tr>
      Control<\/td>\u4ec5\u4f7f\u7528\u539f\u6709\u7cfb\u7edf\uff08\u5305\u542b\u5df2\u6709\u7684\u591a\u6837\u6027\u5904\u7406\uff0c\u5982 DPP\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n


      \u610f\u56fe\u5b9a\u4e49
      Exploration Intent\uff08\u63a2\u7d22\uff09\uff1a\u7528\u6237\u662f\u5426\u70b9\u51fb\u964c\u751f\u521b\u4f5c\u8005\u7684\u89c6\u9891\uff1b
      Familiarity Intent\uff08\u719f\u6089\uff09\uff1a\u70b9\u51fb\u4e4b\u524d\u770b\u8fc7\u7684\u521b\u4f5c\u8005\u7684\u89c6\u9891\u3002<\/p>\n\n\n\n

      \u6838\u5fc3\u5b9e\u9a8c\u7ed3\u679c<\/h3>\n\n\n\n
      \"\"<\/figure>\n\n\n\n

      \u7ed3\u8bba\uff1a\u5c0f\u5e45\u63d0\u5347 \u2260 \u65e0\u610f\u4e49\uff0c\u5728 YouTube \u8fd9\u79cd\u5e73\u53f0\u4f53\u91cf\u4e0b\uff0c0.05% DAU \u63d0\u5347\u662f\u975e\u5e38\u663e\u8457\u7684\u3002<\/p>\n\n\n\n

      \u63a2\u7d22\u6027\u4e0e\u591a\u6837\u6027\u5206\u6790<\/h3>\n\n\n\n
      \"\"<\/figure>\n\n\n\n

      \u7ed3\u8bba\uff1a\u7528\u6237\u63a2\u7d22\u7684\u5185\u5bb9\u4e0d\u4ec5\u201c\u591a\u201d\uff0c\u800c\u4e14\u662f\u201c\u6301\u7eed\u6027\u5730\u3001\u591a\u89d2\u5ea6\u5730\u63a2\u7d22\u201d\u3002<\/p>\n\n\n\n

      \"\"<\/figure>\n\n\n\n

      \u7ed3\u8bba\uff1a\u672c\u6587\u65b9\u6cd5\u4e0d\u4ec5\u63a8\u8350\u4e86\u66f4\u591a\u65b0\u5185\u5bb9\uff0c\u800c\u4e14\u4e2a\u6027\u5316\u5730\u63a8\u8350\u7ed9\u771f\u6b63\u6709\u63a2\u7d22\u610f\u56fe\u7684\u7528\u6237\uff0c\u4f53\u73b0\u51fa personalization \u7684\u4f18\u52bf\u3002<\/p>\n\n\n\n

      \u591a\u6837\u6027\u5f3a\u5ea6\u7684\u8c03\u8282\u5b9e\u9a8c<\/h3>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
        <\/ol>\n\n\n\n

        \u7ed3\u8bba\uff1a\u591a\u6837\u6027\u4e0d\u662f\u8d8a\u591a\u8d8a\u597d\uff0c\u9700\u8981\u627e\u5230\u5408\u9002\u7684\u63a2\u7d22\u5f3a\u5ea6\u3002<\/p>\n\n\n\n

        \u56db\u3001\u603b\u7ed3<\/h2>\n\n\n\n

        \uff08\u4e00\uff09\u8bba\u6587\u6838\u5fc3\u5185\u5bb9<\/h3>\n\n\n\n
          \n
        • \u5f15\u5165\u201c\u7528\u6237\u610f\u56fe\u201d\u4f5c\u4e3a\u591a\u6837\u6027\u5efa\u6a21\u7684\u6838\u5fc3\u5355\u4f4d\uff1a
          \u4e0d\u518d\u53ea\u662f\u8ba9\u63a8\u8350\u5217\u8868\u201c\u5185\u5bb9\u4e0d\u540c\u201d\uff0c\u800c\u662f\u786e\u4fdd\u8986\u76d6\u7528\u6237\u591a\u4e2a\u6f5c\u5728\u610f\u56fe\uff1b
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            \n
          • \u63d0\u51fa\u610f\u56fe\u591a\u6837\u5316\u6392\u5e8f\u7b97\u6cd5\uff1a
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            \u6392\u5e8f\u65b9\u6cd5\u4e0d\u4ec5\u8003\u8651 item \u5206\u6570\uff0c\u8fd8\u663e\u5f0f\u5efa\u6a21\u201c\u610f\u56fe\u5339\u914d\u5ea6\u201d\uff1b<\/li>\n<\/ul>\n\n\n\n

            \uff08\u4e8c\uff09\u7efc\u5408\u5bf9\u5176\u601d\u8003<\/h3>\n\n\n\n
              \n
            • \u7528\u6237\u5174\u8da3\u8fc1\u79fb\u65b9\u5411\u7684\u8bc6\u522b\u65b9\u5f0f:\u5f15\u5165\u4e00\u4e2a\u201c\u610f\u56fe\u9884\u6d4b\u6a21\u578b\u201d\uff0c\u8bad\u7ec3\u4e00\u4e2a\u591a\u6807\u7b7e\u5206\u7c7b\u6a21\u578b\u6765\u4f30\u8ba1 Pr(\u6bcf\u4e2a\u610f\u56fe|\u5f53\u524d\u00a0session)\uff0c\u8f93\u51fa\u5f53\u524d\u7528\u6237\u5728\u591a\u4e2a\u65b9\u5411\u4e0a\u7684\u6982\u7387\u5206\u5e03\u3002<\/li>\n<\/ul>\n\n\n\n
                \n
              • \u6bd4\u8f83\u7ed3\u679c\u52a0\u6743\u878d\u5408\uff1a\u91c7\u7528\u7c7b\u4f3c score(x) = Pr(v|i)*LLM\u80dc\u7387(x)\uff0c\u4fdd\u8bc1\u6700\u7ec8\u63a8\u8350\u5217\u8868\u4e2d\u504f\u597d\u9ad8\u6982\u7387\u8fc1\u79fb\u65b9\u5411\uff0c\u4f46\u4e5f\u5141\u8bb8\u5f15\u5165\u5c11\u91cf\u6b21\u8981\u65b9\u5411\u4ee5\u589e\u5f3a\u591a\u6837\u6027\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

                \u6765\u6e90\uff1aACM SIGKDD\u4f5c\u8005\uff1aYuyan Wang, Cheenar Banerjee\u7b49\u5355\u4f4d\uff1aStanfor […]<\/p>\n","protected":false},"author":60,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3430","post","type-post","status-publish","format-standard","hentry","category-events"],"_links":{"self":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/3430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/comments?post=3430"}],"version-history":[{"count":1,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/3430\/revisions"}],"predecessor-version":[{"id":3438,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/3430\/revisions\/3438"}],"wp:attachment":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/media?parent=3430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/categories?post=3430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/tags?post=3430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}