{"id":22965,"date":"2025-11-09T15:14:30","date_gmt":"2025-11-09T15:14:30","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=22965"},"modified":"2025-11-09T15:14:30","modified_gmt":"2025-11-09T15:14:30","slug":"%e6%a4%9c%e7%b4%a2%e3%82%a8%e3%83%b3%e3%82%b8%e3%83%b3%e3%81%a8mongodb-atlas-search%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6-elw%e6%a0%aa%e5%bc%8f%e4%bc%9a%e7%a4%be-%e3%83%86%e3%83%83%e3%82%af%e3%83%96","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/22965\/","title":{"rendered":"\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u3068MongoDB Atlas Search\u306b\u3064\u3044\u3066 &#8211; ELW\u682a\u5f0f\u4f1a\u793e \u30c6\u30c3\u30af\u30d6\u30ed\u30b0"},"content":{"rendered":"\n<br \/><img decoding=\"async\" src=\"https:\/\/ogimage.blog.st-hatena.com\/6802418398310218856\/17179246901315574782\/1762700467\" \/><\/p>\n<div>\n<p>CTO\u306e\u6751\u4e0a\u3067\u3059\u3002\u5f0a\u793e\u3067\u306f\u4e00\u89a7\u691c\u7d22\u3067MongoDB Atlas\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>DRIVE <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/SFA\">SFA<\/a>\u3067\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5bfe\u3057\u3066\u30ab\u30b9\u30bf\u30e0\u9805\u76ee\u3092\u8a2d\u5b9a\u3067\u304d\u3001\u6a19\u6e96\u306e\u9805\u76ee\u3067\u3082\u30ab\u30b9\u30bf\u30e0\u9805\u76ee\u3067\u3082\u90e8\u5206\u4e00\u81f4\u691c\u7d22\u304c\u51fa\u6765\u308b\u3068\u3044\u3046\u4ed5\u69d8\u4e0a\u3001\u9014\u4e2d\u304b\u3089\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u89b3\u70b9\u306e\u5bfe\u7b56\u3068\u3057\u3066\u63a1\u7528\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u3053\u3067\u52c9\u5f37\u4f1a\u3067\u6280\u8853\u5468\u77e5\u306e\u305f\u3081\u306b\u5171\u6709\u3057\u307e\u3057\u305f\u3002LLM\u3082\u4f7f\u3063\u3066\u8cc7\u6599\u3092\u4f5c\u308a\u307e\u3057\u305f\u306e\u3067\u3054\u4e86\u627f\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a target=\"_blank\" href=\"https:\/\/speakerdeck.com\/chie8842\/mongodb-atlas-search-nogoshao-jie\">https:\/\/speakerdeck.com\/chie8842\/mongodb-atlas-search-nogoshao-jie<\/a><\/p>\n<h2 id=\"-\u6982\u8981\">\ud83e\udded \u6982\u8981<\/h2>\n<p><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%B8%A1%BA%F7%A5%A8%A5%F3%A5%B8%A5%F3\">\u691c\u7d22\u30a8\u30f3\u30b8\u30f3<\/a>\u306b\u304a\u3051\u308b\u30c6\u30ad\u30b9\u30c8\u691c\u7d22\u306f\u3001\u300c\u60c5\u5831\u691c\u7d22\uff08Information Retrieval\uff09\u300d\u306e\u539f\u7406\u306b\u57fa\u3065\u304d\u3001<strong>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u69cb\u7bc9 \u2192 \u691c\u7d22 \u2192 \u30b9\u30b3\u30a2\u30ea\u30f3\u30b0<\/strong> \u306e\u6d41\u308c\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002<br \/>\n\u65e5\u672c\u8a9e\u306e\u5834\u5408\u3001\u5358\u8a9e\u5883\u754c\u304c\u66d6\u6627\u306a\u305f\u3081\u3001\u7279\u6709\u306e\u5de5\u592b\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<hr\/>\n<h2 id=\"-1-\u30a4\u30f3\u30c7\u30c3\u30af\u30b9Index\u306e\u69cb\u7bc9\">\ud83e\udde9 1. \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08Index\uff09\u306e\u69cb\u7bc9<\/h2>\n<p><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%B8%A1%BA%F7%A5%A8%A5%F3%A5%B8%A5%F3\">\u691c\u7d22\u30a8\u30f3\u30b8\u30f3<\/a>\u306f\u5168\u30c7\u30fc\u30bf\u3092\u90fd\u5ea6\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u30c6\u30ad\u30b9\u30c8\u3092\u691c\u7d22\u3057\u3084\u3059\u3044\u5f62\u306b\u5909\u63db\u3057\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u300c\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u300d\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<h3 id=\"\u624b\u9806\">\u624b\u9806<\/h3>\n<ol>\n<li><strong><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%A5%C8%A1%BC%A5%AF\">\u30c8\u30fc\u30af<\/a>\u30f3\u5316\uff08Tokenization\uff09<\/strong>\n<ul>\n<li>\u6587\u3092\u5358\u8a9e\u5358\u4f4d\u306b\u5206\u3051\u308b\u3002<\/li>\n<li>\u4f8b\uff1a\u300c\u6771\u4eac\u90fd\u6e0b\u8c37\u533a\u306b\u3042\u308b\u4f1a\u793e\u3067\u3059\u300d\u2192 <code>[\"\u6771\u4eac\", \"\u90fd\", \"\u6e0b\u8c37\", \"\u533a\", \"\u4f1a\u793e\"]<\/code><\/li>\n<\/ul>\n<\/li>\n<li><strong>\u6b63\u898f\u5316<\/strong>\n<ul>\n<li>\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3084\u5168\u89d2\u534a\u89d2\u3001\u8a18\u53f7\u3092\u7d71\u4e00\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u30b9\u30c6\u30df\u30f3\u30b0 \/ \u30ec\u30f3\u30de\u5316<\/strong>\n<ul>\n<li>\u82f1\u8a9e\u3067\u306f\u8a9e\u5e79\u7d71\u4e00\uff08\u4f8b\uff1a\u300crunning\u300d\u300cran\u300d\u2192\u300crun\u300d\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%C5%BE%C3%D6%A5%A4%A5%F3%A5%C7%A5%C3%A5%AF%A5%B9\">\u8ee2\u7f6e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/a><\/strong>\n<ul>\n<li>\u5358\u8a9e \u2192 \u51fa\u73fe\u6587\u66f8ID\u306e\u5bfe\u5fdc\u8868\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<div class=\"s_table\"><table>\n<thead>\n<tr>\n<th> \u5358\u8a9e <\/th>\n<th> \u51fa\u73fe\u6587\u66f8ID <\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td> \u6e0b\u8c37 <\/td>\n<td> 1, 4, 9 <\/td>\n<\/tr>\n<tr>\n<td> \u4f1a\u793e <\/td>\n<td> 1, 3, 7 <\/td>\n<\/tr>\n<tr>\n<td> \u6771\u4eac <\/td>\n<td> 1, 2, 9 <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<hr\/>\n<h2 id=\"-2-\u30af\u30a8\u30ea\u89e3\u6790\u3068\u691c\u7d22\">\ud83d\udd0d 2. \u30af\u30a8\u30ea\u89e3\u6790\u3068\u691c\u7d22<\/h2>\n<ol>\n<li><strong>\u30af\u30a8\u30ea\u89e3\u6790<\/strong>\uff1a\u5165\u529b\u8a9e\u53e5\u3092<a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%A5%C8%A1%BC%A5%AF\">\u30c8\u30fc\u30af<\/a>\u30f3\u5316\u30fb\u6b63\u898f\u5316\u3002<\/li>\n<li><strong>\u691c\u7d22\u6761\u4ef6\u89e3\u91c8<\/strong>\uff1aAND\/OR\/\u30d5\u30ec\u30fc\u30ba\/\u66d6\u6627\u691c\u7d22\u3092\u5224\u5b9a\u3002<\/li>\n<li><strong>\u5019\u88dc\u6587\u66f8\u53d6\u5f97<\/strong>\uff1a<a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%C5%BE%C3%D6%A5%A4%A5%F3%A5%C7%A5%C3%A5%AF%A5%B9\">\u8ee2\u7f6e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/a>\u304b\u3089\u6587\u66f8ID\u3092\u53d6\u5f97\u3002<\/li>\n<\/ol>\n<hr\/>\n<h2 id=\"\ufe0f-3-\u30b9\u30b3\u30a2\u30ea\u30f3\u30b0\u3068\u30e9\u30f3\u30ad\u30f3\u30b0\">\u2696\ufe0f 3. \u30b9\u30b3\u30a2\u30ea\u30f3\u30b0\u3068\u30e9\u30f3\u30ad\u30f3\u30b0<\/h2>\n<h3 id=\"TF-IDF\">TF-IDF<\/h3>\n<ul>\n<li>\u5358\u8a9e\u306e\u51fa\u73fe\u983b\u5ea6 \u00d7 \u9006\u6587\u66f8\u983b\u5ea6\u3067\u91cd\u307f\u4ed8\u3051\u3002<\/li>\n<\/ul>\n<h3 id=\"BM25\">BM25<\/h3>\n<ul>\n<li>TF-IDF\u3092\u6539\u826f\u3057\u3001\u6587\u66f8\u9577\u3084\u5358\u8a9e\u98fd\u548c\u3092\u8003\u616e\u3002<\/li>\n<\/ul>\n<h3 id=\"\u30d9\u30af\u30c8\u30eb\u691c\u7d22\">\u30d9\u30af\u30c8\u30eb\u691c\u7d22<\/h3>\n<ul>\n<li>\u6587\u66f8\u3092\u30d9\u30af\u30c8\u30eb\u5316\u3057\u3001\u610f\u5473\u306e\u8fd1\u3055\uff08\u30b3\u30b5\u30a4\u30f3\u985e\u4f3c\u5ea6\u306a\u3069\uff09\u3067\u691c\u7d22\u3002<\/li>\n<\/ul>\n<hr\/>\n<h2 id=\"-4-\u65e5\u672c\u8a9e\u691c\u7d22\u7279\u6709\u306e\u8ab2\u984c\">\ud83e\udde0 4. \u65e5\u672c\u8a9e\u691c\u7d22\u7279\u6709\u306e\u8ab2\u984c<\/h2>\n<p>\u82f1\u8a9e\u306f\u30b9\u30da\u30fc\u30b9\u533a\u5207\u308a\u3060\u304c\u3001\u65e5\u672c\u8a9e\u306f\u300c\u3053\u308c\u306f\u30da\u30f3\u3067\u3059\u300d\u306e\u3088\u3046\u306b\u5358\u8a9e\u5883\u754c\u304c\u660e\u793a\u3055\u308c\u306a\u3044\u3002<br \/>\n\u2192 <strong><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%A5%C8%A1%BC%A5%AF\">\u30c8\u30fc\u30af<\/a>\u30f3\u5316<\/strong> \u306e\u305f\u3081\u306b<a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%B7%C1%C2%D6%C1%C7%B2%F2%C0%CF\">\u5f62\u614b\u7d20\u89e3\u6790<\/a>\u3084 <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/n-gram\">n-gram<\/a> \u304c\u4f7f\u308f\u308c\u308b\u3002<\/p>\n<hr\/>\n<h2 id=\"-5-\u5f62\u614b\u7d20\u89e3\u6790morphological-analysis\">\ud83c\ude36 5. <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%B7%C1%C2%D6%C1%C7%B2%F2%C0%CF\">\u5f62\u614b\u7d20\u89e3\u6790<\/a>\uff08morphological analysis\uff09<\/h2>\n<h3 id=\"\u6982\u8981\">\u6982\u8981<\/h3>\n<p>\u6587\u3092\u5358\u8a9e\u5358\u4f4d\u306b\u5206\u89e3\u3057\u3001\u54c1\u8a5e\u60c5\u5831\u3092\u4ed8\u4e0e\u3002<\/p>\n<div class=\"s_table\"><table>\n<thead>\n<tr>\n<th> \u30a8\u30f3\u30b8\u30f3 <\/th>\n<th> \u7279\u5fb4 <\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td> <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/MeCab\">MeCab<\/a> <\/td>\n<td> \u9ad8\u7cbe\u5ea6\u30fb\u9ad8\u901f <\/td>\n<\/tr>\n<tr>\n<td> Kuromoji <\/td>\n<td> <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/Lucene\">Lucene<\/a>\u6a19\u6e96\u3001\u65e5\u672c\u8a9e\u691c\u7d22\u3067\u5e83\u304f\u5229\u7528 <\/td>\n<\/tr>\n<tr>\n<td> Sudachi <\/td>\n<td> \u56fa\u6709\u540d\u8a5e\u3084\u7701\u7565\u8a9e\u306b\u5f37\u3044 <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h3 id=\"\u6d41\u308c\">\u6d41\u308c<\/h3>\n<p>\u4f8b\uff1a\u300c\u6771\u4eac\u90fd\u6e0b\u8c37\u533a\u306b\u3042\u308b\u4f1a\u793e\u3067\u3059\u300d\u2192\u300c\u6771\u4eac\uff0f\u90fd\uff0f\u6e0b\u8c37\uff0f\u533a\uff0f\u306b\uff0f\u3042\u308b\uff0f\u4f1a\u793e\uff0f\u3067\u3059\u300d<\/p>\n<h3 id=\"\u30e1\u30ea\u30c3\u30c8\">\u30e1\u30ea\u30c3\u30c8<\/h3>\n<ul>\n<li>\u610f\u5473\u7684\u306b\u81ea\u7136\u306a\u5358\u4f4d\u3067\u691c\u7d22\u53ef\u80fd<\/li>\n<li><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%B8%ED%A5%D2%A5%C3%A5%C8\">\u8aa4\u30d2\u30c3\u30c8<\/a>\u304c\u5c11\u306a\u3044<\/li>\n<li>\u6d3b\u7528\u5f62\u3082\u5438\u53ce\u53ef\u80fd<\/li>\n<\/ul>\n<h3 id=\"\u30c7\u30e1\u30ea\u30c3\u30c8\">\u30c7\u30e1\u30ea\u30c3\u30c8<\/h3>\n<ul>\n<li>\u51e6\u7406\u304c\u91cd\u3044<\/li>\n<li>\u8f9e\u66f8\u66f4\u65b0\u304c\u5fc5\u8981<\/li>\n<li>\u65b0\u8a9e\u306b\u5f31\u3044<\/li>\n<\/ul>\n<hr\/>\n<h2 id=\"-6-n-gram-\u624b\u6cd5\">\ud83d\udd22 6. <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/n-gram\">n-gram<\/a> \u624b\u6cd5<\/h2>\n<h3 id=\"\u6982\u8981-1\">\u6982\u8981<\/h3>\n<p>\u30c6\u30ad\u30b9\u30c8\u3092\u9023\u7d9a\u3057\u305f n \u6587\u5b57\u5358\u4f4d\u3067\u5206\u5272\u3002<\/p>\n<p>\u4f8b\uff1a\u300c\u6e0b\u8c37\u4f1a\u793e\u300d\u2192 <code>[\"\u6e0b\u8c37\", \"\u8c37\u4f1a\", \"\u4f1a\u793e\"]<\/code>\uff082-gram\uff09<\/p>\n<h3 id=\"\u30e1\u30ea\u30c3\u30c8-1\">\u30e1\u30ea\u30c3\u30c8<\/h3>\n<ul>\n<li>\u8f9e\u66f8\u4e0d\u8981\u30fb\u65b0\u8a9e\u306b\u5f37\u3044<\/li>\n<li>\u5b9f\u88c5\u304c\u7c21\u5358<\/li>\n<li>\u90e8\u5206\u4e00\u81f4\u306b\u5f37\u3044<\/li>\n<\/ul>\n<h3 id=\"\u30c7\u30e1\u30ea\u30c3\u30c8-1\">\u30c7\u30e1\u30ea\u30c3\u30c8<\/h3>\n<ul>\n<li><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%B8%ED%A5%D2%A5%C3%A5%C8\">\u8aa4\u30d2\u30c3\u30c8<\/a>\u304c\u5897\u3048\u308b<\/li>\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30b5\u30a4\u30ba\u304c\u5927\u304d\u3044<\/li>\n<li>\u610f\u5473\u7406\u89e3\u304c\u3067\u304d\u306a\u3044<\/li>\n<\/ul>\n<hr\/>\n<h2 id=\"\ufe0f-7-\u6bd4\u8f03\u8868\">\u2696\ufe0f 7. \u6bd4\u8f03\u8868<\/h2>\n<div class=\"s_table\"><table>\n<thead>\n<tr>\n<th> \u6bd4\u8f03\u9805\u76ee <\/th>\n<th> <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%B7%C1%C2%D6%C1%C7%B2%F2%C0%CF\">\u5f62\u614b\u7d20\u89e3\u6790<\/a> <\/th>\n<th> <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/n-gram\">n-gram<\/a> <\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td> \u7cbe\u5ea6 <\/td>\n<td> \u9ad8\u3044 <\/td>\n<td> \u4e2d <\/td>\n<\/tr>\n<tr>\n<td> \u901f\u5ea6 <\/td>\n<td> \u3084\u3084\u9045\u3044 <\/td>\n<td> \u901f\u3044 <\/td>\n<\/tr>\n<tr>\n<td> \u672a\u77e5\u8a9e\u5bfe\u5fdc <\/td>\n<td> \u5f31\u3044 <\/td>\n<td> \u5f37\u3044 <\/td>\n<\/tr>\n<tr>\n<td> \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30b5\u30a4\u30ba <\/td>\n<td> \u5c0f\u3055\u3044 <\/td>\n<td> \u5927\u304d\u3044 <\/td>\n<\/tr>\n<tr>\n<td> \u5b9f\u88c5\u96e3\u6613\u5ea6 <\/td>\n<td> \u4e2d\u301c\u9ad8 <\/td>\n<td> \u4f4e <\/td>\n<\/tr>\n<tr>\n<td> \u4e3b\u306a\u7528\u9014 <\/td>\n<td> \u901a\u5e38\u691c\u7d22 <\/td>\n<td> \u90e8\u5206\u4e00\u81f4\u30fb\u88dc\u5b8c <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<hr\/>\n<h2 id=\"-8-\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u904b\u7528\u4f8b\">\ud83d\udd00 8. \u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u904b\u7528\u4f8b<\/h2>\n<h3 id=\"MongoDB-Atlas-Search--Elasticsearch\">MongoDB Atlas Search \/ Elasticsearch<\/h3>\n<pre class=\"code lang-json\" data-lang=\"json\" data-unlink=\"\"><span class=\"synSpecial\">{<\/span>\n  \"<span class=\"synStatement\">mappings<\/span>\": <span class=\"synSpecial\">{<\/span>\n    \"<span class=\"synStatement\">fields<\/span>\": <span class=\"synSpecial\">{<\/span>\n      \"<span class=\"synStatement\">normalizedName<\/span>\": <span class=\"synSpecial\">[<\/span>\n        <span class=\"synSpecial\">{<\/span> \"<span class=\"synStatement\">type<\/span>\": \"<span class=\"synConstant\">string<\/span>\", \"<span class=\"synStatement\">analyzer<\/span>\": \"<span class=\"synConstant\">kuromoji<\/span>\" <span class=\"synSpecial\">}<\/span>,\n        <span class=\"synSpecial\">{<\/span> \"<span class=\"synStatement\">type<\/span>\": \"<span class=\"synConstant\">string<\/span>\", \"<span class=\"synStatement\">analyzer<\/span>\": \"<span class=\"synConstant\">ngram<\/span>\" <span class=\"synSpecial\">}<\/span>\n      <span class=\"synSpecial\">]<\/span>\n    <span class=\"synSpecial\">}<\/span>\n  <span class=\"synSpecial\">}<\/span>\n<span class=\"synSpecial\">}<\/span>\n<\/pre>\n<ul>\n<li>Kuromoji\uff1a\u610f\u5473\u30d9\u30fc\u30b9\u306e\u7cbe\u5bc6\u691c\u7d22<\/li>\n<li><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/n-gram\">n-gram<\/a>\uff1a\u90e8\u5206\u4e00\u81f4\u30fb\u88dc\u5b8c\u691c\u7d22<\/li>\n<\/ul>\n<p>\u4e21\u8005\u3092 <code>should<\/code> \u53e5\u3067\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u7cbe\u5ea6\u3068\u67d4\u8edf\u6027\u3092\u4e21\u7acb\u3002<\/p>\n<hr\/>\n<h2 id=\"-9-\u307e\u3068\u3081\">\ud83c\udfc1 9. \u307e\u3068\u3081<\/h2>\n<div class=\"s_table\"><table>\n<thead>\n<tr>\n<th> \u9805\u76ee <\/th>\n<th> <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%B7%C1%C2%D6%C1%C7%B2%F2%C0%CF\">\u5f62\u614b\u7d20\u89e3\u6790<\/a> <\/th>\n<th> <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/n-gram\">n-gram<\/a> <\/th>\n<th> \u4f75\u7528\u52b9\u679c <\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td> \u5206\u6790\u5358\u4f4d <\/td>\n<td> \u5358\u8a9e <\/td>\n<td> \u6587\u5b57\u5217 <\/td>\n<td> \u610f\u5473\uff0b\u90e8\u5206\u4e00\u81f4 <\/td>\n<\/tr>\n<tr>\n<td> \u7cbe\u5ea6 <\/td>\n<td> \u9ad8\u3044 <\/td>\n<td> \u4e2d <\/td>\n<td> \u9ad8\u7cbe\u5ea6\uff0b\u88dc\u5b8c\u6027 <\/td>\n<\/tr>\n<tr>\n<td> \u672a\u77e5\u8a9e\u5bfe\u5fdc <\/td>\n<td> \u5f31\u3044 <\/td>\n<td> \u5f37\u3044 <\/td>\n<td> \u88dc\u5b8c\u53ef <\/td>\n<\/tr>\n<tr>\n<td> \u4e3b\u306a\u7528\u9014 <\/td>\n<td> \u691c\u7d22 <\/td>\n<td> \u88dc\u5b8c <\/td>\n<td> \u7dcf\u5408\u7684\u691c\u7d22\u4f53\u9a13 <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p>\u5143\u3005\u306e\u5b9f\u88c5\u306e\u554f\u984c\u70b9<\/p>\n<ul>\n<li><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/RDB\">RDB<\/a>\u3068MongoDB\u306b\u691c\u7d22\u6761\u4ef6\u304c\u307e\u305f\u3044\u3067\u3044\u308b\u305f\u3081\u3001\u305d\u308c\u305e\u308c\u3067\u691c\u7d22\u3092\u3057\u3066ID\u3092\u53d6\u5f97\u3057\u3001\u548c\u96c6\u5408\u3092\u53d6\u308b\u5fc5\u8981\u304c\u3042\u308b<\/li>\n<li>\u30ab\u30b9\u30bf\u30e0\u9805\u76ee\u306e\u30c6\u30ad\u30b9\u30c8\u691c\u7d22\u304c\u9045\u3044\n<ul>\n<li>Atlas Search\u3092\u4f7f\u3046\u3053\u3068\u3067\u9ad8\u901f\u5316\u306f\u3057\u305f\u304c\u3001\u7cbe\u5ea6\u304c\u4f4e\u3044<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u4eca\u5165\u308c\u3066\u3044\u308b\u6539\u5584<\/p>\n<ul>\n<li>MongoDB\u3092\u4e00\u89a7\u691c\u7d22\u5c02\u7528\u306b\u3057\u3066\u3001\u691c\u7d22\u306b\u5fc5\u8981\u306a\u9805\u76ee\u306f\u516c\u5f0f\u9805\u76ee\u3084\u95a2\u9023\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3082\u542b\u3081\u3066\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3059\u308b<\/li>\n<li>\u5358\u7d14\u306b\u30c6\u30ad\u30b9\u30c8\u691c\u7d22\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001<a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/n-gram\">n-gram<\/a>\u3084keyword\u691c\u7d22\u306a\u3069\u3092\u9805\u76ee\u306e\u6027\u8cea\u306b\u5fdc\u3058\u3066\u91cd\u307f\u4ed8\u3051\u3092\u5909\u3048\u3066\u30b9\u30b3\u30a2\u30ea\u30f3\u30b0\u3059\u308b<\/li>\n<\/ul>\n<p>\u96e3\u3057\u3044\u70b9<\/p>\n<ul>\n<li>\u6587\u66f8\u306e\u691c\u7d22\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u66d6\u6627\u6027\u306f\u4e0d\u8981\u3067\u53b3\u683c\u6027\u3092\u6c42\u3081\u3089\u308c\u308b\n<ul>\n<li>\u305f\u3060\u3057\u30c6\u30ad\u30b9\u30c8\u691c\u7d22\u306f100%\u306e\u7cbe\u5ea6\u306f\u3042\u308a\u3048\u306a\u3044<\/li>\n<\/ul>\n<\/li>\n<li>\u30b9\u30b3\u30a2\u30ea\u30f3\u30b0\u3057\u3066\u3044\u308b\u95a2\u4fc2\u4e0a\u3001\u30b9\u30b3\u30a2\u9806\u3067\u51fa\u3059\u3053\u3068\u3092\u60f3\u5b9a\u3057\u3066\u3044\u308b\u304c\u3001\u9805\u76ee\u3067\u306e\u30bd\u30fc\u30c8\u304c\u4ed5\u69d8<\/li>\n<\/ul>\n<p>Q: <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/n-gram\">n-gram<\/a>\u3082pg_bigm\u3082DRIVE <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/SFA\">SFA<\/a>\u3067\u4f7f\u3063\u3066\u3044\u308b\u304c\u3001\u305d\u3061\u3089\u306f\u90e8\u5206\u4e00\u81f4\u3068\u540c\u7fa9\u3067\u4f7f\u3048\u3066\u3044\u308b\u8a8d\u8b58\u3002Atlas Search\u306e\u5834\u5408\u306f\u306a\u305c\u7cbe\u5ea6\u306e\u554f\u984c\u304c\u51fa\u3066\u304f\u308b\u306e\u304b<\/p>\n<p>A: \u4ee5\u4e0b\u306b\u56de\u7b54\u3092\u5f8c\u65e5\u307e\u3068\u3081\u307e\u3057\u305f<\/p>\n<h3 id=\"pg_bigm\u3068\u306e\u6bd4\u8f03\">pg_bigm\u3068\u306e\u6bd4\u8f03<\/h3>\n<div class=\"s_table\"><table>\n<thead>\n<tr>\n<th> <strong>\u89b3\u70b9<\/strong> <\/th>\n<th> pg_bigm <\/th>\n<th> <strong>MongoDB Atlas Search (nGram Analyzer)<\/strong> <\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td> \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5358\u4f4d <\/td>\n<td> 2\u6587\u5b57\u3054\u3068\u306e\u56fa\u5b9a\u30d0\u30a4\u30b0\u30e9\u30e0 <\/td>\n<td> \u53ef\u5909\u9577 n\uff08\u4f8b: min=2, max=3\uff09 <\/td>\n<\/tr>\n<tr>\n<td> \u691c\u7d22\u6642\u306e\u6319\u52d5 <\/td>\n<td> \u6587\u5b57\u5217\u985e\u4f3c\u5ea6\uff08Jaccard\u30d9\u30fc\u30b9\uff09\u3092\u8a08\u7b97 <\/td>\n<td> <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/n-gram\">n-gram<\/a> \u306e\u4e00\u90e8\u4e00\u81f4\u3067\u3082\u30b9\u30b3\u30a2\u306b\u5bc4\u4e0e\uff08\u30d6\u30fc\u30eb\u3067\u306f\u306a\u3044\uff09 <\/td>\n<\/tr>\n<tr>\n<td> \u30de\u30c3\u30c1\u6761\u4ef6 <\/td>\n<td> <strong>\u5168\u30d0\u30a4\u30b0\u30e9\u30e0\u306e\u96c6\u5408\u6bd4\u8f03<\/strong> <\/td>\n<td> <strong>\u5358\u8a9e\u30ec\u30d9\u30eb\uff0b<a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%A5%C8%A1%BC%A5%AF\">\u30c8\u30fc\u30af<\/a>\u30f3\u3054\u3068\u90e8\u5206\u30de\u30c3\u30c1<\/strong> <\/td>\n<\/tr>\n<tr>\n<td> <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%A5%C8%A1%BC%A5%AF\">\u30c8\u30fc\u30af<\/a>\u30f3\u5883\u754c <\/td>\n<td> \u306a\u3057\uff08\u5168\u6587\u9023\u7d9a\u6587\u5b57\uff09 <\/td>\n<td> <strong><a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%A5%C8%A1%BC%A5%AF\">\u30c8\u30fc\u30af<\/a>\u30ca\u30a4\u30b6\u304c\u5358\u8a9e\u30fb\u8a18\u53f7\u3092\u533a\u5207\u308b<\/strong> <\/td>\n<\/tr>\n<tr>\n<td> \u30de\u30c3\u30c1\u8a55\u4fa1 <\/td>\n<td> \u985e\u4f3c\u5ea6 \u2265 <a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%EF%E7%C3%CD\">\u95be\u5024<\/a>\uff08\u4f8b: 0.3\uff09\u3067\u30d2\u30c3\u30c8 <\/td>\n<td> BM25\/Tf-Idf\u30b9\u30b3\u30a2\u8a08\u7b97\u3002\u985e\u4f3c\u5ea6<a target=\"_blank\" class=\"keyword\" href=\"https:\/\/d.hatena.ne.jp\/keyword\/%EF%E7%C3%CD\">\u95be\u5024<\/a>\u306a\u3057 <\/td>\n<\/tr>\n<tr>\n<td> \u691c\u7d22\u7d50\u679c <\/td>\n<td> \u985e\u4f3c\u5ea6\u304c\u9ad8\u3044\uff08\u90e8\u5206\u4e00\u81f4\u306e\u4e2d\u3067\u3082\u53b3\u9078\uff09 <\/td>\n<td> \u985e\u4f3c\u30b9\u30b3\u30a2\u304c\u5c0f\u3055\u304f\u3066\u3082\u300c\u30d2\u30c3\u30c8\u300d\u3068\u3057\u3066\u8fd4\u308b <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n<p><script>(function(d, s, id) {\n  var js, fjs = d.getElementsByTagName(s)[0];\n  if (d.getElementById(id)) return;\n  js = d.createElement(s); js.id = id;\n  js.src = \"\/\/connect.facebook.net\/ja_JP\/sdk.js#xfbml=1&appId=719729204785177&version=v17.0\";\n  fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));<\/script><br \/>\n<br \/>\n<br \/><a href=\"https:\/\/techblog.elw.co.jp\/entry\/2025\/11\/09\/233008\">\u5143\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3059\u308b <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"CTO\u306e\u6751\u4e0a\u3067\u3059\u3002\u5f0a\u793e\u3067\u306f\u4e00\u89a7\u691c\u7d22\u3067MongoDB Atlas\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002 DRIVE SFA\u3067\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5bfe\u3057\u3066\u30ab\u30b9\u30bf\u30e0\u9805\u76ee\u3092\u8a2d\u5b9a\u3067\u304d\u3001\u6a19\u6e96\u306e\u9805\u76ee\u3067\u3082\u30ab\u30b9\u30bf\u30e0\u9805\u76ee\u3067\u3082\u90e8\u5206\u4e00\u81f4\u691c\u7d22\u304c\u51fa\u6765\u308b\u3068\u3044\u3046\u4ed5\u69d8\u4e0a\u3001\u9014\u4e2d\u304b\u3089 [&hellip;]","protected":false},"author":1,"featured_media":22966,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-22965","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company-tec"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u3068MongoDB Atlas Search\u306b\u3064\u3044\u3066 - ELW\u682a\u5f0f\u4f1a\u793e \u30c6\u30c3\u30af\u30d6\u30ed\u30b0 - \u30dd\u30b1\u30b3\u30f3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/techblog.elw.co.jp\/entry\/2025\/11\/09\/233008\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u3068MongoDB Atlas Search\u306b\u3064\u3044\u3066 - ELW\u682a\u5f0f\u4f1a\u793e \u30c6\u30c3\u30af\u30d6\u30ed\u30b0 - \u30dd\u30b1\u30b3\u30f3\" \/>\n<meta property=\"og:description\" content=\"CTO\u306e\u6751\u4e0a\u3067\u3059\u3002\u5f0a\u793e\u3067\u306f\u4e00\u89a7\u691c\u7d22\u3067MongoDB Atlas\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002 DRIVE 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