{"id":9984,"date":"2026-10-06T14:55:35","date_gmt":"2026-10-06T05:55:35","guid":{"rendered":"https:\/\/since2020.jp\/media\/?p=9984"},"modified":"2026-10-06T14:55:35","modified_gmt":"2026-10-06T05:55:35","slug":"collaborative-filtering-intro","status":"publish","type":"post","link":"https:\/\/since2020.jp\/media\/collaborative-filtering-intro\/","title":{"rendered":"\u3010\u307e\u308b\u3067\u53e3\u30b3\u30df\u3011\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u5165\u9580\uff1a\u300c\u307f\u3093\u306a\u306e\u597d\u307f\u300d\u304b\u3089\u5b66\u3076\u63a8\u85a6\u6280\u8853"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1. \u306f\u3058\u3081\u306b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30ec\u30b3\u30e1\u30f3\u30c9\u306e2\u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<p>\u63a8\u85a6\u306e\u624b\u6cd5\u306f\u3001\u5927\u304d\u304f2\u3064\u306b\u5206\u304b\u308c\u307e\u3059\u3002\u30a2\u30a4\u30c6\u30e0\u306e\u7279\u5fb4\u3092\u624b\u304c\u304b\u308a\u306b\u3059\u308b\u300c\u5185\u5bb9\u30d9\u30fc\u30b9\u300d\u3002\u305d\u3057\u3066\u3001\u4eba\u306e\u884c\u52d5\u3092\u624b\u304c\u304b\u308a\u306b\u3059\u308b\u300c\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u300d\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"485\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-1024x485.png\" alt=\"\" class=\"wp-image-9985\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-1024x485.png 1024w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-300x142.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-768x364.png 768w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image.png 1110w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u53f3\u5074\u306e\u679d\u3067\u3042\u308b\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306b\u6ce8\u76ee\u3057\u3001\u305d\u306e\u3044\u304f\u3064\u304b\u306e\u4f8b\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3068\u306f<\/h3>\n\n\n\n<p>\u53cb\u4eba\u306b\u300c\u3053\u306e\u6620\u753b\u3001\u541b\u306a\u3089\u597d\u304d\u3060\u3068\u601d\u3046\u300d\u3068\u85a6\u3081\u3089\u308c\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\u3002\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u3053\u306e\u53e3\u30b3\u30df\u3092\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3067\u81ea\u52d5\u5316\u3059\u308b\u6280\u8853\u3067\u3059\u3002\u8003\u3048\u65b9\u306f\u300c\u597d\u307f\u306e\u4f3c\u305f\u4eba\u306f\u3001\u4f3c\u305f\u3082\u306e\u3092\u597d\u3080\u300d\u3068\u3044\u3046\u30b7\u30f3\u30d7\u30eb\u306a\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5185\u5bb9\u30d9\u30fc\u30b9\u3068\u306e\u9055\u3044<\/h3>\n\n\n\n<p>\u5185\u5bb9\u30d9\u30fc\u30b9\u306f\u3001\u3042\u306a\u305f\u304c\u597d\u304d\u306a\u3082\u306e\u306e\u7279\u5fb4\u3092\u8abf\u3079\u3001\u305d\u306e\u7279\u5fb4\u306b\u5408\u3046\u30a2\u30a4\u30c6\u30e0\u3092\u63a8\u85a6\u3057\u307e\u3059\u3002SF\u6620\u753b\u304c\u597d\u304d\u306a\u4eba\u306b\u306f\u3001\u5225\u306eSF\u6620\u753b\u3092\u85a6\u3081\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u306f\u3001\u30b8\u30e3\u30f3\u30eb\u3084\u51fa\u6f14\u8005\u306a\u3069\u306e\u60c5\u5831\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u3042\u306a\u305f\u3068\u8a55\u4fa1\u306e\u50be\u5411\u304c\u4f3c\u3066\u3044\u308b\u4eba\u304c\u597d\u3080\u30a2\u30a4\u30c6\u30e0\u3084\u3001\u3042\u306a\u305f\u304c\u597d\u304d\u306a\u30a2\u30a4\u30c6\u30e0\u3068\u8a55\u4fa1\u306e\u3055\u308c\u65b9\u304c\u4f3c\u3066\u3044\u308b\u30a2\u30a4\u30c6\u30e0\u3092\u63a8\u85a6\u3057\u307e\u3059\u3002\u6620\u753b\u306e\u30b8\u30e3\u30f3\u30eb\u3084\u30b9\u30c8\u30fc\u30ea\u30fc\u306f\u77e5\u3089\u306a\u304f\u3066\u69cb\u3044\u307e\u305b\u3093\u3002\u5fc5\u8981\u306a\u306e\u306f\u3001\u8ab0\u304c\u3069\u3046\u884c\u52d5\u3057\u305f\u304b\u306e\u8a18\u9332\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u89b3\u70b9<\/th><th>\u5185\u5bb9\u30d9\u30fc\u30b9<\/th><th>\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/th><\/tr><\/thead><tbody><tr><td>\u624b\u304c\u304b\u308a<\/td><td>\u30b8\u30e3\u30f3\u30eb\u3084\u8aac\u660e\u6587\u306a\u3069\u306e\u7279\u5fb4<\/td><td>\u8ab0\u304c\u4f55\u3092\u597d\u3093\u3060\u304b\u306e\u8a18\u9332<\/td><\/tr><tr><td>\u63a8\u85a6\u306e\u4f8b<\/td><td>SF\u597d\u304d\u306b\u3001\u5225\u306eSF<\/td><td>\u4f3c\u305f\u4eba\u304c\u597d\u304d\u306a\u3001\u5225\u30b8\u30e3\u30f3\u30eb\u306e\u4f5c\u54c1<\/td><\/tr><tr><td>\u65b0\u4f5c\u306e\u6271\u3044<\/td><td>\u3059\u3050\u306b\u63a8\u85a6\u3067\u304d\u308b<\/td><td>\u8a55\u4fa1\u304c\u96c6\u307e\u308b\u307e\u3067\u82e6\u624b<\/td><\/tr><tr><td>\u610f\u5916\u306a\u767a\u898b<\/td><td>\u751f\u307e\u308c\u306b\u304f\u3044<\/td><td>\u751f\u307e\u308c\u3084\u3059\u3044<\/td><\/tr><tr><td>\u5fc5\u8981\u306a\u6e96\u5099<\/td><td>\u30a2\u30a4\u30c6\u30e0\u3084\u30e6\u30fc\u30b6\u30fc\u306e\u7279\u5fb4\u30c7\u30fc\u30bf\u306e\u6574\u5099<\/td><td>\u30e6\u30fc\u30b6\u30fc\u306e\u884c\u52d5\u306e\u8a18\u9332<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u6280\u8853\u306e\u57fa\u672c\u539f\u7406<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5c0f\u3055\u306a\u4f8b\u3067\u8003\u3048\u3066\u307f\u308b<\/h3>\n\n\n\n<p>6\u4eba\u304c6\u672c\u306e\u6620\u753b\u3092\u3001\u661f1\u301c5\u3067\u8a55\u4fa1\u3057\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"646\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-1-1024x646.png\" alt=\"\" class=\"wp-image-9986\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-1-1024x646.png 1024w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-1-300x189.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-1-768x484.png 768w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-1.png 1503w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u8868\u3092\u300c\u8a55\u4fa1\u5024\u884c\u5217\u300d\u3068\u547c\u3073\u307e\u3059\u3002\u5b9f\u969b\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u307b\u3068\u3093\u3069\u306e\u30de\u30b9\u304c\u300c\uff1f\u300d\uff08\u672a\u8a55\u4fa1\uff09\u3067\u3059\u3002\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u3053\u306e\u8a55\u4fa1\u5024\u884c\u5217\u3092\u3069\u3046\u51e6\u7406\u3059\u308c\u3070\u826f\u3044\u63a8\u85a6\u304c\u3067\u304d\u308b\u304b\u3092\u8003\u3048\u308b\u6280\u8853\u3067\u3059\u3002<\/p>\n\n\n\n<p>A\u3055\u3093\u306fSF\u3092\u307e\u3060\u898b\u3066\u3044\u307e\u305b\u3093\u3002\u3055\u3066\u3001SF\u3092\u85a6\u3081\u308b\u3079\u304d\u3067\u3057\u3087\u3046\u304b\u3002\u4ee5\u4e0b\u3067\u306f\u3001A\u3055\u3093\u306eSF\u306e\u300c\uff1f\u300d\u3092\u4e88\u6e2c\u3059\u308b\u4f8b\u3067\u3001\u5404\u624b\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u7a2e\u985e<\/h3>\n\n\n\n<p>\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u5927\u304d\u304f\u300c\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9\u300d\u3068\u300c\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\u300d\u306b\u5206\u304b\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9\u306f\u3001\u8a55\u4fa1\u5024\u884c\u5217\u3092\u305d\u306e\u307e\u307e\u4f7f\u3063\u3066\u300c\u4f3c\u3066\u3044\u308b\u3082\u306e\u300d\u3092\u63a2\u3059\u65b9\u5f0f\u3067\u3001\u300c\u8fd1\u508d\u6cd5\u300d\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002\u4f3c\u305f\u30e6\u30fc\u30b6\u30fc\u3092\u63a2\u3059\u300c\u30e6\u30fc\u30b6\u30fc\u30d9\u30fc\u30b9\u300d\u3068\u3001\u4f3c\u305f\u30a2\u30a4\u30c6\u30e0\u3092\u63a2\u3059\u300c\u30a2\u30a4\u30c6\u30e0\u30d9\u30fc\u30b9\u300d\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u3044\u3046\u300c\u4f3c\u3066\u3044\u308b\u300d\u306f\u3001\u3069\u3061\u3089\u3082\u4e2d\u8eab\u3067\u306f\u306a\u304f\u884c\u52d5\u3067\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\u306f\u3001\u8a55\u4fa1\u5024\u884c\u5217\u304b\u3089\u597d\u307f\u306e\u50be\u5411\u3092\u5b66\u7fd2\u3057\u3066\u304a\u304d\u3001\u305d\u308c\u3092\u4f7f\u3063\u3066\u4e88\u6e2c\u3059\u308b\u65b9\u5f0f\u3067\u3059\u3002\u884c\u5217\u5206\u89e3\u3084\u6df1\u5c64\u5b66\u7fd2\u304c\u4ee3\u8868\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9\u306e4\u30b9\u30c6\u30c3\u30d7<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u884c\u52d5\u3092\u96c6\u3081\u308b<\/strong>\uff1a\u8a55\u4fa1\u3001\u8cfc\u5165\u3001\u95b2\u89a7\u306a\u3069\u306e\u5c65\u6b74\u3092\u3001\u30e6\u30fc\u30b6\u30fc\u00d7\u30a2\u30a4\u30c6\u30e0\u306e\u8868\u306b\u307e\u3068\u3081\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4f3c\u3066\u3044\u308b\u5ea6\u5408\u3044\u3092\u6e2c\u308b<\/strong>\uff1a\u30e6\u30fc\u30b6\u30fc\u540c\u58eb\uff08\u30a2\u30a4\u30c6\u30e0\u30d9\u30fc\u30b9\u3067\u306f\u30a2\u30a4\u30c6\u30e0\u540c\u58eb\uff09\u306e\u8a55\u4fa1\u306e\u4e26\u3073\u304c\u3069\u308c\u3060\u3051\u4f3c\u3066\u3044\u308b\u304b\u3092\u3001\u6570\u5024\u3067\u8868\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u7a7a\u6b04\u3092\u4e88\u6e2c\u3059\u308b<\/strong>\uff1a\u4f3c\u3066\u3044\u308b\u76f8\u624b\u307b\u3069\u91cd\u304f\u6271\u3044\u3001\u8a55\u4fa1\u3092\u91cd\u307f\u4ed8\u304d\u3067\u5e73\u5747\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4e26\u3079\u3066\u85a6\u3081\u308b<\/strong>\uff1a\u307e\u3060\u8a55\u4fa1\u3057\u3066\u3044\u306a\u3044\u30a2\u30a4\u30c6\u30e0\u3092\u3001\u4e88\u6e2c\u5024\u306e\u9ad8\u3044\u9806\u306b\u8868\u793a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">\u300c\u4f3c\u3066\u3044\u308b\u300d\u306e\u6e2c\u308a\u65b9<\/h4>\n\n\n\n<p>\u3088\u304f\u4f7f\u308f\u308c\u308b\u306e\u304c\u30b3\u30b5\u30a4\u30f3\u985e\u4f3c\u5ea6\u3067\u3059\u3002\u8a55\u4fa1\u306e\u4e26\u3073\u3092\u77e2\u5370\u306b\u898b\u7acb\u3066\u3001\u305d\u306e\u5411\u304d\u304c\u3069\u308c\u3060\u3051\u63c3\u3063\u3066\u3044\u308b\u304b\u3092\u6e2c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mrow><mtext><\/mtext><mi>sim<\/mi><\/mrow><mo form=\"prefix\" stretchy=\"false\">(<\/mo><mi>u<\/mi><mo separator=\"true\">,<\/mo><mi>v<\/mi><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mo>=<\/mo><mfrac><mrow><msub><mi>\ud835\udc2b<\/mi><mi>u<\/mi><\/msub><mo>\u22c5<\/mo><msub><mi>\ud835\udc2b<\/mi><mi>v<\/mi><\/msub><\/mrow><mrow><mi>\u2016<\/mi><msub><mi>\ud835\udc2b<\/mi><mi>u<\/mi><\/msub><mi>\u2016<\/mi><mspace width=\"0.1667em\"><\/mspace><mi>\u2016<\/mi><msub><mi>\ud835\udc2b<\/mi><mi>v<\/mi><\/msub><mi>\u2016<\/mi><\/mrow><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">\\mathrm{sim}(u, v) = \\frac{\\mathbf{r}_u \\cdot \\mathbf{r}_v}{\\|\\mathbf{r}_u\\| \\, \\|\\mathbf{r}_v\\|}\n<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<p>\u305f\u3060\u3057\u661f\u306e\u8a55\u4fa1\u306f\u3059\u3079\u3066\u30d7\u30e9\u30b9\u306a\u306e\u3067\u3001\u597d\u307f\u304c\u6b63\u53cd\u5bfe\u306e\u4eba\u540c\u58eb\u3067\u3082\u985e\u4f3c\u5ea6\u304c\u9ad8\u3081\u306b\u51fa\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u5404\u81ea\u306e\u5e73\u5747\u70b9\u3092\u5f15\u3044\u3066\u304b\u3089\u6bd4\u3079\u308b\u30d4\u30a2\u30bd\u30f3\u76f8\u95a2\u3082\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002\u63a1\u70b9\u306e\u30af\u30bb\u3092\u6d88\u3057\u3066\u597d\u307f\u306e\u5f62\u3060\u3051\u3092\u6bd4\u3079\u308b\u5de5\u592b\u3067\u3001\u597d\u307f\u304c\u6b63\u53cd\u5bfe\u306a\u3089\u22121\u306b\u8fd1\u3065\u304d\u307e\u3059\u3002\u4ed6\u306b\u3082\u30b8\u30e3\u30ab\u30fc\u30c9\u4fc2\u6570\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30e6\u30fc\u30b6\u9593\u578b\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9<\/h4>\n\n\n\n<p>\u8a55\u4fa1\u5024\u884c\u5217\u306e\u884c\u540c\u58eb\u3092\u6bd4\u3079\u3066\u3001A\u3055\u3093\u3068\u597d\u307f\u306e\u4f3c\u305f\u4eba\u3092\u63a2\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>A\u3055\u3093\u306f\u30a2\u30af\u30b7\u30e7\u30f31\u30fb2\u3092\u9ad8\u304f\u3001\u604b\u611b1\u3092\u4f4e\u304f\u8a55\u4fa1\u3057\u3066\u3044\u307e\u3059\u3002B\u3055\u3093\u3068C\u3055\u3093\u3082\u3001\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u597d\u304d\u3067\u604b\u611b\u304c\u82e6\u624b\u3068\u3044\u3046\u70b9\u3067\u4f3c\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001D\u301cF\u3055\u3093\u306f\u604b\u611b\u304c\u597d\u304d\u3067\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u82e6\u624b\u306a\u3001A\u3055\u3093\u3068\u306f\u9006\u306e\u597d\u307f\u3067\u3059\u3002\u5b9f\u969b\u306b\u985e\u4f3c\u5ea6\u3092\u8a08\u7b97\u3059\u308b\u3068\u3001B\u3055\u3093\u3068C\u3055\u3093\u306f\u30d7\u30e9\u30b9\uff08+0.74\u3001+0.61\uff09\u3001D\u301cF\u3055\u3093\u306f\u30de\u30a4\u30ca\u30b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f3c\u3066\u3044\u308bB\u3055\u3093\u3068C\u3055\u3093\u306f\u3001SF\u306b\u305d\u308c\u305e\u308c\u661f5\u3068\u661f4\u3092\u3064\u3051\u3066\u3044\u307e\u3059\u3002\u3053\u306e2\u4eba\u306e\u8a55\u4fa1\u3092\u985e\u4f3c\u5ea6\u3067\u91cd\u307f\u4ed8\u3051\u3057\u3066\u5e73\u5747\u3059\u308b\u3068\uff08\u5404\u81ea\u306e\u5e73\u5747\u70b9\u306e\u305a\u308c\u3082\u88dc\u6b63\u3057\u307e\u3059\uff09\u3001A\u3055\u3093\u306eSF\u306f\u7d044.6\u3068\u9ad8\u3081\u306b\u4e88\u6e2c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"537\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-2-1024x537.png\" alt=\"\" class=\"wp-image-9987\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-2-1024x537.png 1024w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-2-300x157.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-2-768x403.png 768w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-2-1536x806.png 1536w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-2.png 2013w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u30a2\u30a4\u30c6\u30e0\u9593\u578b\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9<\/h4>\n\n\n\n<p>\u8a55\u4fa1\u5024\u884c\u5217\u306e\u5217\u540c\u58eb\u3092\u6bd4\u3079\u3066\u3001SF\u3068\u8a55\u4fa1\u306e\u3055\u308c\u65b9\u304c\u4f3c\u305f\u6620\u753b\u3092\u63a2\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>SF\u306f\u3001\u30a2\u30af\u30b7\u30e7\u30f3\u597d\u304d\u306eB\u3055\u3093\u30fbC\u3055\u3093\u304c\u9ad8\u304f\u3001\u604b\u611b\u597d\u304d\u306eD\u3055\u3093\u30fbE\u3055\u3093\u304c\u4f4e\u304f\u8a55\u4fa1\u3057\u3066\u3044\u307e\u3059\u3002\u30a2\u30af\u30b7\u30e7\u30f31\u30fb2\u3082\u540c\u3058\u50be\u5411\u3067\u3001\u985e\u4f3c\u5ea6\u306f\u30d7\u30e9\u30b9\uff08+0.45\u3001+0.66\uff09\u306b\u306a\u308a\u307e\u3059\u3002\u604b\u611b\u3084\u30b3\u30e1\u30c7\u30a3\u306f\u9006\u306e\u50be\u5411\u3067\u3001\u985e\u4f3c\u5ea6\u306f\u30de\u30a4\u30ca\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<p>A\u3055\u3093\u306f\u3001SF\u3068\u4f3c\u3066\u3044\u308b\u30a2\u30af\u30b7\u30e7\u30f31\u306b\u661f5\u3001\u30a2\u30af\u30b7\u30e7\u30f32\u306b\u661f4\u3092\u3064\u3051\u3066\u3044\u307e\u3059\u3002\u3053\u306e2\u3064\u306e\u8a55\u4fa1\u3092\u985e\u4f3c\u5ea6\u3067\u91cd\u307f\u4ed8\u3051\u3057\u3066\u5e73\u5747\u3059\u308b\u3068\u3001A\u3055\u3093\u306eSF\u306f\u7d044.4\u3068\u9ad8\u3081\u306b\u4e88\u6e2c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"657\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-3-1024x657.png\" alt=\"\" class=\"wp-image-9988\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-3-1024x657.png 1024w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-3-300x193.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-3-768x493.png 768w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-3-1536x986.png 1536w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-3.png 2028w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u884c\u5217\u5206\u89e3<\/h4>\n\n\n\n<p>\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\u3067\u306f\u3001\u65e2\u77e5\u306e\u8a55\u4fa1\u304b\u3089\u898f\u5247\u6027\u3084\u597d\u307f\u306e\u50be\u5411\u3092\u3042\u3089\u304b\u3058\u3081\u30e2\u30c7\u30eb\u306b\u5b66\u7fd2\u3055\u305b\u3066\u304a\u304d\u3001\u307e\u3060\u8a55\u4fa1\u3055\u308c\u3066\u3044\u306a\u3044\u30de\u30b9\u306e\u8a55\u4fa1\u5024\u3092\u4e88\u6e2c\u3057\u307e\u3059\u3002\u672c\u7a3f\u3067\u306f\u3001\u4ee3\u8868\u7684\u306a\u624b\u6cd5\u306e\u4e00\u3064\u3067\u3042\u308b\u884c\u5217\u5206\u89e3\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9\u3068\u9055\u3044\u3001\u884c\u5217\u5206\u89e3\u306f\u8868\u5168\u4f53\u304b\u3089\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u30a2\u30a4\u30c6\u30e0\u3092\u5c11\u6570\u306e\u300c\u597d\u307f\u306e\u8ef8\u300d\uff08\u6570\u5024\u306e\u7d44\uff09\u3067\u8868\u3059\u65b9\u6cd5\u3092\u5b66\u7fd2\u3057\u307e\u3059\u3002\u8ef8\u306e\u6570\u5024\u306f\u5168\u54e1\u306e\u8a55\u4fa1\u304b\u3089\u5b66\u3076\u305f\u3081\u3001\u4e00\u4eba\u3072\u3068\u308a\u306e\u8a55\u4fa1\u304c\u5c11\u306a\u304f\u3066\u3082\u3001\u4ed6\u306e\u4eba\u306e\u8a55\u4fa1\u3092\u9593\u63a5\u7684\u306b\u6d3b\u304b\u305b\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u8a55\u4fa1\u5024\u884c\u5217\u304c\u758e\u3067\u3082\u6bd4\u8f03\u7684\u5b89\u5b9a\u3057\u3066\u4e88\u6e2c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9(MF\u306e\u5834\u5408)\u306e4\u30b9\u30c6\u30c3\u30d7<\/h4>\n\n\n\n<p>\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\u306e\u624b\u6cd5\u306f\u591a\u5c90\u306b\u308f\u305f\u308a\u3001\u624b\u9806\u3082\u624b\u6cd5\u3054\u3068\u306b\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u305d\u306e\u4e00\u4f8b\u3068\u3057\u3066\u884c\u5217\u5206\u89e3\uff08MF\uff1aMatrix Factorization\uff09\u306e\u5834\u5408\u306e\u6d41\u308c\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u884c\u52d5\u3092\u96c6\u3081\u308b<\/strong>\uff1a\u8a55\u4fa1\u3001\u8cfc\u5165\u3001\u95b2\u89a7\u306a\u3069\u306e\u5c65\u6b74\u3092\u3001\u30e6\u30fc\u30b6\u30fc\u00d7\u30a2\u30a4\u30c6\u30e0\u306e\u8868\u306b\u307e\u3068\u3081\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30e2\u30c7\u30eb\u3092\u5b66\u7fd2\u3059\u308b<\/strong>\uff1a\u8a55\u4fa1\u306e\u3042\u308b\u30de\u30b9\u3060\u3051\u3092\u4f7f\u3063\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u30a2\u30a4\u30c6\u30e0\u3092\u305d\u308c\u305e\u308c\u300c\u597d\u307f\u306e\u8ef8\u300d\u306e\u6570\u5024\u306e\u7d44\u3067\u8868\u3057\u307e\u3059\u3002\u639b\u3051\u623b\u3057\u305f\u5024\u304c\u5b9f\u969b\u306e\u8a55\u4fa1\u306b\u8fd1\u3065\u304f\u3088\u3046\u306b\u3001\u6570\u5024\u3092\u8abf\u6574\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u7a7a\u6b04\u3092\u4e88\u6e2c\u3059\u308b<\/strong>\uff1a\u30e6\u30fc\u30b6\u30fc\u306e\u6570\u5024\u306e\u7d44\u3068\u30a2\u30a4\u30c6\u30e0\u306e\u6570\u5024\u306e\u7d44\u3092\u639b\u3051\u3066\u8db3\u3057\u3001\u7a7a\u6b04\u306e\u4e88\u6e2c\u5024\u3092\u51fa\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4e26\u3079\u3066\u85a6\u3081\u308b<\/strong>\uff1a\u307e\u3060\u8a55\u4fa1\u3057\u3066\u3044\u306a\u3044\u30a2\u30a4\u30c6\u30e0\u3092\u3001\u4e88\u6e2c\u5024\u306e\u9ad8\u3044\u9806\u306b\u8868\u793a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9\u3068\u306e\u9055\u3044\u306f\u3001\u624b\u98062\u3067\u300c\u4f3c\u3066\u3044\u308b\u5ea6\u5408\u3044\u3092\u6e2c\u308b\u300d\u4ee3\u308f\u308a\u306b\u300c\u3042\u3089\u304b\u3058\u3081\u5b66\u7fd2\u3057\u3066\u304a\u304f\u300d\u3053\u3068\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u63a8\u85a6\u3059\u308b\u3068\u304d\u306f\u624b\u98063\u306e\u639b\u3051\u7b97\u3060\u3051\u3067\u6e08\u307f\u307e\u3059\u3002\u306a\u304a\u3001\u6df1\u5c64\u5b66\u7fd2\u3092\u4f7f\u3046\u624b\u6cd5\u306a\u3069\u3067\u306f\u3001\u624b\u98062\u30683\u306e\u4e2d\u8eab\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e0b\u306e\u56f3\u3067\u306f\u3001\u597d\u307f\u306e\u8ef8\u30922\u3064\u306b\u3057\u3066\u30016\u00d76\u306e\u8a55\u4fa1\u5024\u884c\u5217\u3092\u5206\u89e3\u3057\u3066\u3044\u307e\u3059\u3002A\u3055\u3093\u306e\u884c\uff082.15, 0.20\uff09\u3068SF\u306e\u5217\uff082.08, 0.21\uff09\u3092\u639b\u3051\u3066\u8db3\u3059\u3068\u3001A\u3055\u3093\u306eSF\u306f\u7d044.5\u3068\u4e88\u6e2c\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u4f8b\u3067\u306f\u8ef81\u304c\u30a2\u30af\u30b7\u30e7\u30f3\u3001\u8ef82\u304c\u604b\u611b\u306b\u8fd1\u3044\u610f\u5473\u306b\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u3053\u308c\u306f\u5b66\u7fd2\u5f8c\u306b\u4eba\u304c\u89e3\u91c8\u3057\u305f\u3082\u306e\u3067\u3001\u3042\u3089\u304b\u3058\u3081\u6c7a\u3081\u305f\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"457\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-4-1024x457.png\" alt=\"\" class=\"wp-image-9989\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-4-1024x457.png 1024w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-4-300x134.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-4-768x343.png 768w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-4-1536x685.png 1536w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-4-2048x913.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u767a\u5c55\u3068\u6700\u65b0\u306e\u5fdc\u7528<\/h2>\n\n\n\n<p>\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u4eca\u3082\u63a8\u85a6\u306e\u4e2d\u5fc3\u306b\u3042\u308a\u307e\u3059\u3002\u5f62\u3092\u5909\u3048\u306a\u304c\u3089\u3001\u6700\u65b0\u306e\u4ed5\u7d44\u307f\u306e\u571f\u53f0\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u306e\u5927\u898f\u6a21\u30b5\u30fc\u30d3\u30b9\u306e\u591a\u304f\u306f\u3001\u63a8\u85a6\u30922\u6bb5\u968e\u3067\u884c\u3044\u307e\u3059\u3002\u307e\u305a\u4f55\u767e\u4e07\u4ef6\u304b\u3089\u6570\u767e\u4ef6\u306b\u5019\u88dc\u3092\u7d5e\u308a\u3001\u6b21\u306b\u7cbe\u5bc6\u306a\u30e2\u30c7\u30eb\u3067\u4e26\u3079\u66ff\u3048\u307e\u3059\u3002\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u7279\u306b\u6700\u521d\u306e\u7d5e\u308a\u8fbc\u307f\u3067\u6d3b\u8e8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"410\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-7-1024x410.png\" alt=\"\" class=\"wp-image-9992\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-7-1024x410.png 1024w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-7-300x120.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-7-768x307.png 768w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-7-1536x614.png 1536w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-7-2048x819.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u4ed6\u306b\u3082\u3001\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u7528\u3044\u305f\u624b\u6cd5\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u624b\u6cd5\u304c\u63d0\u6848\u3055\u308c\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7cfb\u5217\u63a8\u85a6\uff08\u9806\u756a\u307e\u3067\u898b\u308b\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/strong>\uff1a\u300c\u4f55\u3092\u597d\u3093\u3060\u304b\u300d\u306b\u52a0\u3048\u3001\u300c\u3069\u306e\u9806\u756a\u3067\u898b\u305f\u304b\u300d\u3082\u5b66\u7fd2\u3057\u307e\u3059\u3002\u300c\u3053\u306e\u52d5\u753b\u306e\u6b21\u306b\u306f\u3001\u307f\u3093\u306a\u3053\u308c\u3092\u898b\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u767a\u60f3\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30b0\u30e9\u30d5\u63a8\u85a6\uff08\u8a55\u4fa1\u5024\u884c\u5217\u3092\u7db2\u306e\u76ee\u3067\u898b\u308b\uff09<\/strong>\uff1a\u8a55\u4fa1\u5024\u884c\u5217\u306f\u3001\u4eba\u3068\u30a2\u30a4\u30c6\u30e0\u3092\u7dda\u3067\u7d50\u3093\u3060\u7db2\u306e\u76ee\u3068\u3082\u898b\u306a\u305b\u307e\u3059\u3002\u300c\u4f3c\u305f\u4eba\u304c\u597d\u304d\u306a\u7269\u3092\u597d\u304d\u306a\u4eba\u300d\u306e\u3088\u3046\u306b\u3001\u3064\u306a\u304c\u308a\u3092\u4f55\u6bb5\u3082\u305f\u3069\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>LLM\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\uff08\u5f31\u70b9\u3092\u88dc\u3046\uff09<\/strong>\uff1a\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u5c65\u6b74\u306e\u306a\u3044\u65b0\u4f5c\u304c\u82e6\u624b\u3067\u3059\u3002LLM\u306e\u8a00\u8449\u306e\u77e5\u8b58\u3067\u3001\u305d\u306e\u7a74\u3092\u57cb\u3081\u308b\u8a66\u307f\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001LLM\u306b\u5229\u7528\u8005\u306e\u7acb\u5834\u3067\u8a55\u4fa1\u3092\u751f\u6210\u3055\u305b\u3001\u8db3\u308a\u306a\u3044\u8a55\u4fa1\u30c7\u30fc\u30bf\u3092\u88dc\u3046\u7814\u7a76\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u4f7f\u7528\u4f8b\u3068\u5b9f\u7e3e<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u73fe\u5728\u306e\u4f7f\u308f\u308c\u65b9<\/h3>\n\n\n\n<p>\u4eca\u3084\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001EC\u3001\u52d5\u753b\u3001\u97f3\u697d\u3001\u30cb\u30e5\u30fc\u30b9\u3001SNS\u306a\u3069\u3001\u3042\u3089\u3086\u308b\u5206\u91ce\u306b\u5e83\u304c\u3063\u3066\u3044\u307e\u3059\u3002\u5358\u72ec\u3067\u4f7f\u308f\u308c\u308b\u3088\u308a\u3001\u4ed6\u306e\u624b\u6cd5\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u306e\u304c\u666e\u901a\u3067\u3059\u3002\u305d\u308c\u3067\u3082\u300c\u307f\u3093\u306a\u306e\u884c\u52d5\u304b\u3089\u5b66\u3076\u300d\u3068\u3044\u3046\u8003\u3048\u65b9\u306f\u3001\u591a\u304f\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u571f\u53f0\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Amazon<\/h3>\n\n\n\n<p>\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u6210\u529f\u4f8b\u3068\u3044\u3048\u3070\u3001\u307e\u305aAmazon\u3067\u3059\u3002\u540c\u793e\u306e\u30a2\u30a4\u30c6\u30e0\u30d9\u30fc\u30b9\u306e\u624b\u6cd5\u306f\u30012003\u5e74\u306e\u8ad6\u6587\u767a\u8868\u6642\u70b9\u3067\u3059\u3067\u306b6\u5e74\u307b\u3069\u672c\u756a\u3067\u52d5\u3044\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Netflix<\/h3>\n\n\n\n<p>Netflix\u3067\u306f\u3001\u8996\u8074\u6642\u9593\u306e\u7d0480%\u304c\u63a8\u85a6\u7d4c\u7531\u3067\u3059\u3002\u540c\u793e\u306f\u3001\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3068\u63a8\u85a6\u306b\u3088\u308b\u89e3\u7d04\u6291\u6b62\u306e\u52b9\u679c\u3092\u3001\u5e74\u959310\u5104\u30c9\u30eb\u4ee5\u4e0a\u3068\u898b\u7a4d\u3082\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">YouTube<\/h3>\n\n\n\n<p>YouTube\u306f2016\u5e74\u3001\u6df1\u5c64\u5b66\u7fd2\u3092\u4f7f\u3063\u305f\u63a8\u85a6\u306e\u4ed5\u7d44\u307f\u3092\u8ad6\u6587\u3067\u516c\u958b\u3057\u307e\u3057\u305f\u3002\u8996\u8074\u5c65\u6b74\u304b\u3089\u5019\u88dc\u3092\u7d5e\u308a\u3001\u305d\u306e\u5f8c\u306b\u4e26\u3079\u66ff\u3048\u308b2\u6bb5\u69cb\u3048\u3067\u3059\u3002\u591a\u304f\u306e\u4f01\u696d\u304c\u53c2\u8003\u306b\u3057\u305f\u3001\u73fe\u4ee3\u306e\u5b9a\u756a\u69cb\u6210\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u5229\u70b9\u3068\u8ab2\u984c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e1\u30ea\u30c3\u30c8<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e2d\u8eab\u306e\u5206\u6790\u304c\u3044\u3089\u306a\u3044<\/strong>\uff1a\u884c\u52d5\u306e\u8a18\u9332\u3055\u3048\u3042\u308c\u3070\u3001\u3069\u3093\u306a\u5206\u91ce\u306b\u3082\u4f7f\u3048\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u610f\u5916\u306a\u51fa\u4f1a\u3044\u3092\u751f\u307f\u3084\u3059\u3044<\/strong>\uff1a\u30b8\u30e3\u30f3\u30eb\u3092\u8d85\u3048\u3066\u3001\u300c\u4f3c\u305f\u4eba\u304c\u597d\u3093\u3060\u3082\u306e\u300d\u3092\u85a6\u3081\u3089\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u611f\u6027\u3092\u6349\u3048\u3089\u308c\u308b<\/strong>\uff1a\u300c\u306a\u3093\u3068\u306a\u304f\u597d\u304d\u300d\u306e\u3088\u3046\u306a\u3001\u8a00\u8449\u306b\u3057\u306b\u304f\u3044\u597d\u307f\u3082\u53cd\u6620\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4f7f\u3046\u307b\u3069\u8ce2\u304f\u306a\u308b<\/strong>\uff1a\u5229\u7528\u8005\u3068\u30c7\u30fc\u30bf\u304c\u5897\u3048\u308b\u307b\u3069\u3001\u7cbe\u5ea6\u304c\u4e0a\u304c\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6700\u5f8c\u306e\u70b9\u306f\u3001\u30d3\u30b8\u30cd\u30b9\u4e0a\u306e\u5f37\u307f\u306b\u3082\u306a\u308a\u307e\u3059\u3002\u5229\u7528\u8005\u304c\u591a\u3044\u30b5\u30fc\u30d3\u30b9\u307b\u3069\u3001\u63a8\u85a6\u304c\u826f\u304f\u306a\u308a\u307e\u3059\u3002\u826f\u3044\u63a8\u85a6\u304c\u3055\u3089\u306b\u5229\u7528\u8005\u3092\u547c\u3076\u3001\u597d\u5faa\u74b0\u304c\u751f\u307e\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9650\u754c\u3068\u8ab2\u984c<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30eb\u30c9\u30b9\u30bf\u30fc\u30c8<\/strong>\uff1a\u5c65\u6b74\u306e\u306a\u3044\u65b0\u898f\u30e6\u30fc\u30b6\u30fc\u3084\u65b0\u4f5c\u306f\u3001\u63a8\u85a6\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30c7\u30fc\u30bf\u306e\u758e\u3089\u3055<\/strong>\uff1a\u4e00\u4eba\u304c\u89e6\u308c\u308b\u306e\u306f\u5168\u30a2\u30a4\u30c6\u30e0\u306e\u3054\u304f\u4e00\u90e8\u306a\u306e\u3067\u3001\u6bd4\u3079\u308b\u305f\u3081\u306e\u5171\u901a\u306e\u8a55\u4fa1\u304c\u8db3\u308a\u306a\u304f\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u898f\u6a21\u306e\u58c1<\/strong>\uff1a\u624b\u6cd5\u306b\u3082\u3088\u308a\u307e\u3059\u304c\u3001\u7279\u306b\u30e6\u30fc\u30b6\u30fc\u30d9\u30fc\u30b9\u3067\u306f\u3001\u5229\u7528\u8005\u304c\u5897\u3048\u308b\u307b\u3069\u4f3c\u305f\u4eba\u63a2\u3057\u306e\u8a08\u7b97\u304c\u91cd\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4eba\u6c17\u306e\u504f\u308a<\/strong>\uff1a\u5c65\u6b74\u306e\u591a\u3044\u4eba\u6c17\u4f5c\u3070\u304b\u308a\u304c\u63a8\u85a6\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc<\/strong>\uff1a\u884c\u52d5\u306e\u8a18\u9332\u306f\u3001\u305d\u306e\u4eba\u3089\u3057\u3055\u3092\u5f37\u304f\u8868\u3059\u500b\u4eba\u60c5\u5831\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u6271\u3044\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u6280\u8853\u306e\u5c06\u6765\u5c55\u671b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4eca\u5f8c\u306e\u6280\u8853\u7684\u306a\u767a\u5c55<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u884c\u52d5\u306e\u6d41\u308c\u3092\u8aad\u3080<\/strong>\uff1a\u300c\u4f55\u304c\u597d\u304d\u304b\u300d\u306b\u52a0\u3048\u3001\u300c\u4eca\u4f55\u3092\u3057\u305f\u3044\u304b\u300d\u3092\u6349\u3048\u308b\u65b9\u5411\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u9577\u671f\u7684\u306a\u6e80\u8db3\u3092\u72d9\u3046<\/strong>\uff1a\u76ee\u5148\u306e\u30af\u30ea\u30c3\u30af\u3088\u308a\u3001\u9577\u304f\u697d\u3057\u3093\u3067\u3082\u3089\u3048\u308b\u304b\u3092\u91cd\u8996\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u504f\u308a\u3092\u6b63\u3059<\/strong>\uff1a\u4eba\u6c17\u4f5c\u3078\u306e\u504f\u308a\u3084\u3001\u8868\u793a\u4f4d\u7f6e\u306e\u5f71\u97ff\u3092\u88dc\u6b63\u3059\u308b\u7814\u7a76\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ed6\u306e\u65b0\u6280\u8853\u3068\u306e\u9023\u643a<\/h3>\n\n\n\n<p>\u6700\u3082\u6ce8\u76ee\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u3001\u5927\u898f\u6a21\u8a00\u8a9e\u30e2\u30c7\u30eb\uff08LLM\uff09\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u3059\u3002\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u884c\u52d5\u306e\u50be\u5411\u3092\u3001LLM\u306f\u8a00\u8449\u306e\u610f\u5473\u3092\u6349\u3048\u308b\u306e\u304c\u5f97\u610f\u3067\u3059\u3002\u3053\u306e2\u3064\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u6b21\u306e\u3088\u3046\u306a\u53d6\u308a\u7d44\u307f\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30eb\u30c9\u30b9\u30bf\u30fc\u30c8\u306e\u7de9\u548c<\/strong>\uff1a\u5c65\u6b74\u306e\u306a\u3044\u65b0\u4f5c\u3067\u3082\u3001\u8aac\u660e\u6587\u304b\u3089\u597d\u307f\u306b\u5408\u3046\u304b\u3092\u63a8\u6e2c\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5bfe\u8a71\u578b\u306e\u63a8\u85a6<\/strong>\uff1a\u300c\u96e8\u306e\u65e5\u306b\u805e\u304d\u305f\u3044\u66f2\u300d\u306e\u3088\u3046\u306b\u3001\u8a00\u8449\u3067\u6ce8\u6587\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u63a8\u85a6\u7406\u7531\u306e\u8aac\u660e<\/strong>\uff1a\u300c\u306a\u305c\u3053\u308c\u3092\u85a6\u3081\u305f\u306e\u304b\u300d\u3092\u3001\u81ea\u7136\u306a\u6587\u7ae0\u3067\u4f1d\u3048\u3089\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">7. \u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u53e3\u30b3\u30df\u3092\u30c7\u30fc\u30bf\u3067\u81ea\u52d5\u5316\u3057\u305f\u6280\u8853\u3067\u3059\u3002\u305d\u306e\u6838\u5fc3\u306f\u300c\u597d\u307f\u306e\u4f3c\u305f\u4eba\u306f\u3001\u4f3c\u305f\u3082\u306e\u3092\u597d\u3080\u300d\u3068\u3044\u3046\u4e00\u6587\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u6280\u8853\u306f\u3001\u30e1\u30e2\u30ea\u30d9\u30fc\u30b9\u304b\u3089\u884c\u5217\u5206\u89e3\u3001\u6df1\u5c64\u5b66\u7fd2\u3078\u3068\u9032\u5316\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u4e00\u65b9\u3067\u3001\u30b3\u30fc\u30eb\u30c9\u30b9\u30bf\u30fc\u30c8\u3084\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u306a\u3069\u306e\u8ab2\u984c\u3082\u62b1\u3048\u3066\u3044\u307e\u3059\u3002\u4eca\u5f8c\u306fLLM\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u3001\u305d\u306e\u5f31\u70b9\u3092\u88dc\u3063\u3066\u3044\u304f\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u6b21\u306b\u300c\u3042\u306a\u305f\u3078\u306e\u304a\u3059\u3059\u3081\u300d\u3092\u898b\u305f\u3089\u3001\u305d\u306e\u88cf\u5074\u3092\u5c11\u3057\u60f3\u50cf\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u53c2\u8003\u6587\u732e<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u98a8\u9593\u6b63\u5f18\u30fb\u98ef\u585a\u6d38\u4e8c\u90ce\u30fb\u677e\u6751\u512a\u4e5f\u300e\u63a8\u85a6\u30b7\u30b9\u30c6\u30e0\u5b9f\u8df5\u5165\u9580 \u2015\u4ed5\u4e8b\u3067\u4f7f\u3048\u308b\u5c0e\u5165\u30ac\u30a4\u30c9\u300f\u30aa\u30e9\u30a4\u30ea\u30fc\u30fb\u30b8\u30e3\u30d1\u30f3, 2022<\/li>\n\n\n\n<li>Linden, Smith, York, &#8220;<a href=\"http:\/\/Amazon.com\">Amazon.com<\/a> Recommendations: Item-to-Item Collaborative Filtering&#8221;, IEEE Internet Computing, 2003<\/li>\n\n\n\n<li>Gomez-Uribe &amp; Hunt, &#8220;The Netflix Recommender System: Algorithms, Business Value, and Innovation&#8221;, ACM Transactions on Management Information Systems, 2015<\/li>\n\n\n\n<li>Covington, Adams, Sargin, &#8220;Deep Neural Networks for YouTube Recommendations&#8221;, RecSys, 2016<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>1. \u306f\u3058\u3081\u306b \u30ec\u30b3\u30e1\u30f3\u30c9\u306e2\u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1 \u63a8\u85a6\u306e\u624b\u6cd5\u306f\u3001\u5927\u304d\u304f2\u3064\u306b\u5206\u304b\u308c\u307e\u3059\u3002\u30a2\u30a4\u30c6\u30e0\u306e\u7279\u5fb4\u3092\u624b\u304c\u304b\u308a\u306b\u3059\u308b\u300c\u5185\u5bb9\u30d9\u30fc\u30b9\u300d\u3002\u305d\u3057\u3066\u3001\u4eba\u306e\u884c\u52d5\u3092\u624b\u304c\u304b\u308a\u306b\u3059\u308b\u300c\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u300d\u3067\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u53f3\u5074\u306e\u679d\u3067\u3042\u308b [&hellip;]<\/p>\n","protected":false},"author":110,"featured_media":9994,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","swell_btn_cv_data":"","footnotes":"","_wp_rev_ctl_limit":""},"categories":[1249],"tags":[96,1415,419,35],"class_list":["post-9984","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-ai","tag-1415","tag-419","tag-35"],"_links":{"self":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/9984","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/users\/110"}],"replies":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/comments?post=9984"}],"version-history":[{"count":2,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/9984\/revisions"}],"predecessor-version":[{"id":9998,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/9984\/revisions\/9998"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media\/9994"}],"wp:attachment":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media?parent=9984"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/categories?post=9984"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/tags?post=9984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}