{"id":27095,"date":"2019-03-26T14:12:21","date_gmt":"2019-03-26T05:12:21","guid":{"rendered":"https:\/\/www.creationline.com\/?p=27095"},"modified":"2022-12-13T15:21:02","modified_gmt":"2022-12-13T06:21:02","slug":"neo4j-sandbox%e7%b4%b9%e4%bb%8b-neo4j%e3%82%92%e6%b4%bb%e7%94%a8%e3%81%97%e3%81%9f%e3%83%aa%e3%82%a2%e3%83%ab%e3%82%bf%e3%82%a4%e3%83%a0%e3%83%aa%e3%82%b3%e3%83%a1%e3%83%b3%e3%83%89-neo4j","status":"publish","type":"post","link":"https:\/\/www.creationline.com\/tech-blog\/data-management\/dataanalytics\/27095","title":{"rendered":"Neo4j Sandbox\u7d39\u4ecb: Neo4j\u3092\u6d3b\u7528\u3057\u305f\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30ea\u30b3\u30e1\u30f3\u30c9 #neo4j"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2017\/02\/neo4j_logo_700px.png\" alt=\"\" width=\"700\" height=\"280\" class=\"alignnone size-full wp-image-16264\" srcset=\"https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2017\/02\/neo4j_logo_700px.png 700w, https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2017\/02\/neo4j_logo_700px-360x144.png 360w, https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2017\/02\/neo4j_logo_700px-225x90.png 225w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/p>\n<p>\u3053\u3093\u306b\u3061\u306f\uff01\u6728\u5185\u3067\u3059\u3002<\/p>\n<p>\u4e00\u822c\u7684\u306b\u30d1\u30fc\u30bd\u30ca\u30eb\u30ea\u30b3\u30e1\u30f3\u30c9(Amazon\u306e\u300c\u3053\u306e\u5546\u54c1\u3092\u8cfc\u5165\u3057\u305f\u4eba\u306f\u3053\u306e\u3088\u3046\u306a\u5546\u54c1\u306b\u3082\u8208\u5473\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u300d\u306e\u3088\u3046\u306a\u3082\u306e)\u306e\u5b9f\u88c5\u306b\u306f\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u5143\u306b\u3001\u6a5f\u68b0\u5b66\u7fd2\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u99c6\u4f7f\u3057\u3066\u5b9f\u88c5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u3002Neo4j\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u540c\u3058\u3088\u3046\u306a\u3053\u3068\u3092\u3001\u3088\u308a\u5c0f\u898f\u6a21\u306a\u30ea\u30bd\u30fc\u30b9\u3067\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u52a0\u3048\u3066\u4eca\u307e\u3067\u306e\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306f\u96e3\u3057\u304b\u3063\u305f\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u30ea\u30b3\u30e1\u30f3\u30c9\u3082\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u306f Neo4j Sandbox \u3067\u4f53\u9a13\u3067\u304d\u308b \"Personalized Product Recommendations with Neo4j\" \u3092\u5143\u306b\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002\u8a18\u8ff0\u306e\u9806\u756a\u3084\u30af\u30a8\u30ea\u306e\u5185\u5bb9\u306b\u3064\u3044\u3066\u306f\u308f\u304b\u308a\u3084\u3059\u304f\u7de8\u96c6\u304a\u3088\u3073\u4f5c\u6210\u3057\u305f\u305f\u3081\u3001\u5fc5\u305a\u3057\u3082 Sandbox \u306e\u89e3\u8aac\u5185\u5bb9\u3068\u540c\u3058\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3093\u3067\u8208\u5473\u304c\u3042\u308b\u65b9\u306f\u3001\u305c\u3072 Neo4j Sandbox \u306e\u30c7\u30e2\u30f3\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3( <a href=\"https:\/\/neo4j.com\/sandbox-v2\/\" rel=\"noopener noreferrer\" target=\"_blank\">https:\/\/neo4j.com\/sandbox-v2\/<\/a> )\u3067\u5b9f\u969b\u306b\u4f53\u9a13\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h1>\u30ea\u30b3\u30e1\u30f3\u30c9\u304c\u3082\u305f\u3089\u3059\u3082\u306e<\/h1>\n<p>(\u30ea\u30c6\u30fc\u30eb\u3001e\u30b3\u30de\u30fc\u30b9\u306a\u3069\u306e\u696d\u754c\u3067\u306f)\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3055\u308c\u305f\u5546\u54c1\u30ea\u30b3\u30e1\u30f3\u30c9\u306b\u3088\u3063\u3066\u3001\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u30ec\u30fc\u30c8\u306e\u5897\u52a0\u3001\u58f2\u4e0a\u306e\u5897\u5927\u3001\u9867\u5ba2\u6e80\u8db3\u5ea6\u306e\u5411\u4e0a\u3092\u671f\u5f85\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Neo4j\u306b\u3088\u3063\u3066\u5b9f\u73fe\u3067\u304d\u308b\u30d1\u30fc\u30bd\u30ca\u30eb\u30ea\u30b3\u30e1\u30f3\u30c9\u306f\u3001\u5f93\u6765\u306e\u30d0\u30c3\u30c1\u51e6\u7406\u306b\u3088\u308b\u3088\u3046\u306a\u51e6\u7406\u3067\u306f\u306a\u304f\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u30ea\u30b3\u30e1\u30f3\u30c9\u7d50\u679c\u3092\u671f\u5f85\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u964d\u306e\u8a18\u8ff0\u3067\u306f\u3001\u30c7\u30e2\u7528\u306e\u6620\u753b\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u30d1\u30fc\u30bd\u30ca\u30eb\u30ea\u30b3\u30e1\u30f3\u30c9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u304d\u307e\u3059\u304c\u3001\u540c\u3058\u8003\u3048\u65b9\u3092\u7570\u306a\u308b\u88fd\u54c1(\u4f8b\u3048\u3070\u5546\u54c1\u306e\u5c0f\u58f2\u306a\u3069)\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h1>\u30b0\u30e9\u30d5\u30c7\u30fc\u30bf\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308b\u30d1\u30fc\u30bd\u30ca\u30eb\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u30e1\u30ea\u30c3\u30c8<\/h1>\n<p>\u30d1\u30fc\u30bd\u30ca\u30eb\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u5b9f\u88c5\u306f\u30b0\u30e9\u30d5\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u7528\u9014\u3068\u3057\u3066\u4e00\u822c\u7684\u3067\u3059\u3002\u30b0\u30e9\u30d5\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u4f7f\u7528\u3057\u3066\u30d1\u30fc\u30bd\u30ca\u30eb\u30ea\u30b3\u30e1\u30f3\u30c9\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u6027\u80fd: Neo4j\u3067\u306f\u30b0\u30e9\u30d5\u30c7\u30fc\u30bf\u305d\u306e\u3082\u306e\u306f\u30aa\u30f3\u30e1\u30e2\u30ea\u3067\u63a2\u7d22\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u3053\u306e\u30b0\u30e9\u30d5\u69cb\u9020\u3092\u63a2\u7d22\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u5f93\u6765\u306e\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306f\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u304b\u3063\u305f\u5206\u6790\u3068\u306f\u7570\u306a\u308b\u624b\u6cd5\u3067\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u30ea\u30b3\u30e1\u30f3\u30c9\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30d1\u30fc\u30bd\u30ca\u30eb\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u7528\u9014\u304c\u3055\u3089\u306b\u5e83\u304c\u308b\u3053\u3068\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002\u30fb\u30fb\u30fb\u4f8b\u3048\u3070\u304a\u5e97\u306b\u5165\u3063\u305f\u304a\u5ba2\u69d8\u304c\u8cb7\u3044\u7269\u304b\u3054\u3092\u624b\u306b\u53d6\u308b\u307e\u3067\u306b\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306b\u30ea\u30b3\u30e1\u30f3\u30c9\u304c\u30d7\u30c3\u30b7\u30e5\u914d\u4fe1\u3055\u308c\u305f\u3089\u3068\u3066\u3082\u30af\u30fc\u30eb\u3060\u3068\u601d\u3044\u307e\u305b\u3093\u304b\uff1f<\/li>\n<li>\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb: \u30d7\u30ed\u30d1\u30c6\u30a3\u30b0\u30e9\u30d5\u30e2\u30c7\u30eb\u306f\u3001\u8907\u6570\u306e\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u304b\u3089\u306e\u30c7\u30fc\u30bf\u7d50\u5408\u3092\u5bb9\u6613\u306b\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u5f93\u6765\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u30b5\u30a4\u30ba\u3084\u30b9\u30ad\u30fc\u30de\u306e\u554f\u984c\u304b\u3089\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u5b66\u7fd2\u30c7\u30fc\u30bf\u306b\u7528\u3044\u3089\u308c\u306a\u304b\u3063\u305f\u3088\u3046\u306a\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u306e\u8a18\u8ff0\u3067\u306f Neo4j Sandbox\u306b\u3066 MovieLens \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u629c\u7c8b\u304b\u3089\u69cb\u6210\u3055\u308c\u305f\u30b0\u30e9\u30d5\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u5143\u306b\u3001\u6620\u753b\u306e\u30ea\u30b3\u30e1\u30f3\u30c9\u3092\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3059\u3002\u30af\u30a8\u30ea\u306f Sandbox \u306e\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u30af\u30a8\u30ea\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u306e\u3067\u3001Neo4j Sandbox \u3092\u958b\u304d\u306a\u304c\u3089\u8a18\u4e8b\u3092\u8aad\u3093\u3067\u3044\u305f\u3060\u3051\u308b\u3068\u3001\u3088\u308a\u5b9f\u611f\u304c\u308f\u304f\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<h1>\u624b\u6cd51 - \u30a2\u30a4\u30c6\u30e0\u30d9\u30fc\u30b9\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/h1>\n<p>\u30ea\u30b3\u30e1\u30f3\u30c9\u306b\u7528\u3044\u3089\u308c\u308b\u624b\u6cd5\u306f\u5927\u304d\u304f2\u7a2e\u985e\u306b\u5206\u985e\u3055\u308c\u307e\u3059\u3002\u3072\u3068\u3064\u304c\u30a2\u30a4\u30c6\u30e0\u30d9\u30fc\u30b9\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0(=\u30ea\u30b3\u30e1\u30f3\u30c9)\u3001\u3082\u3046\u3072\u3068\u3064\u304c \"\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\" \u3068\u547c\u3070\u308c\u308b\u624b\u6cd5\u3067\u3059\u3002\u307e\u305a\u306f\u30a2\u30a4\u30c6\u30e0\u30d9\u30fc\u30b9\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>\u4e00\u822c\u7684\u306b\u30ea\u30b3\u30e1\u30f3\u30c9\u3055\u308c\u308b\u30a2\u30a4\u30c6\u30e0(\u4eca\u56de\u306e\u4f8b\u3067\u306f\u6620\u753b)\u306f\u3001\u30e6\u30fc\u30b6\u304c\u4ee5\u524d\u306b\u898b\u3066\u3044\u305f\u308a\u3001\u9ad8\u304f\u8a55\u4fa1\u3057\u3066\u3044\u305f\u308a\u3001\u8cfc\u5165\u3057\u3066\u3044\u308b\u30a2\u30a4\u30c6\u30e0\u3068\u4f3c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u30af\u30a8\u30ea\u306f\u3001\u6620\u753b Casino (\u90a6\u984c: \u30ab\u30b8\u30ce) \u3068\u30b8\u30e3\u30f3\u30eb\u3001\u76e3\u7763\u3001\u51fa\u6f14\u8005\u304c\u540c\u3058\u306e\u6620\u753b\u3092\u62bd\u51fa\u3057\u307e\u3059\u3002\u3053\u308c\u304c\u30a2\u30a4\u30c6\u30e0\u30d9\u30fc\u30b9\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u539f\u578b\u306b\u306a\u308a\u307e\u3059\u3002Neo4j\u306b\u304a\u3044\u3066\u3053\u306e\u30af\u30a8\u30ea\u306f\u975e\u5e38\u306b\u9ad8\u901f\u306b\u51e6\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre>\r\nMATCH p=(m:Movie {title: \"Casino\"})-[:ACTED_IN|:IN_GENRE|:DIRECTED*2]-() RETURN p LIMIT 50\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-01.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"wp-content\/uploads\/2019\/03\/190324-01-360x206.jpg\" alt=\"\" width=\"360\" height=\"206\" class=\"alignnone size-medium wp-image-27108\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-01-360x206.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-01-768x440.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-01.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<p>\u898b\u305f\u6620\u753b\u3068\u540c\u3058\u30b8\u30e3\u30f3\u30eb\u306e\u6620\u753b\u3092\u62bd\u51fa\u3057\u3066\u307f\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u4f8b\u306f\u3001\u6620\u753b Inception(\u90a6\u984c: \u30a4\u30f3\u30bb\u30d7\u30b7\u30e7\u30f3)\u3068\u540c\u3058\u30b8\u30e3\u30f3\u30eb\u306e\u6620\u753b\u306e\u4e00\u89a7\u3092\u62bd\u51fa\u3057\u307e\u3059\u3002<\/p>\n<pre>\r\nMATCH (m:Movie)-[:IN_GENRE]-&gt;(g:Genre)&lt;-[:IN_GENRE]-(rec:Movie)\r\nWHERE m.title = \"Inception\"\r\nWITH rec, COLLECT(g.name) AS genres, COUNT(*) AS commonGenres\r\nRETURN rec.title, genres\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-02.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-02-360x237.jpg\" alt=\"\" width=\"360\" height=\"237\" class=\"alignnone size-medium wp-image-27110\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-02-360x237.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-02-768x505.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-02.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<p>\u30c7\u30fc\u30bf\u306e\u4e2d\u306b\u3001\"\u6620\u753b\u3092\u898b\u305f(=\u8a55\u4fa1\u3057\u305f)\"\u3068\u3044\u3046\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u300c\u81ea\u5206\u304c\u898b\u305f\u6620\u753b\u3068\u540c\u3058\u30b8\u30e3\u30f3\u30eb\u306e\u307e\u3060\u898b\u3066\u3044\u306a\u3044\u6620\u753b\u306e\u3046\u3061\u3001\u8a55\u4fa1\u306e\u9ad8\u3044\u9806\u306b10\u4ef6\u8868\u793a\u3059\u308b\u300d\u3053\u3068\u3082\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30af\u30a8\u30ea\u304c\u305d\u306e\u51e6\u7406\u4f8b\u306b\u306a\u308a\u307e\u3059\u3002\"Cynthia Freeman\"\u304c\u898b\u3066\u8a55\u4fa1\u3057\u305f\u6620\u753b\u3068\u540c\u3058\u30b8\u30e3\u30f3\u30eb\u306e\u6620\u753b\u306e\u3046\u3061\u3001\"Cynthia Freeman\"\u304c\u307e\u3060\u8a55\u4fa1\u3057\u3066\u3044\u306a\u3044\u6620\u753b\u306b\u3064\u3051\u3089\u308c\u305f\u8a55\u4fa1\u5408\u8a08\u306e\u9ad8\u3044\u9806\u304b\u308910\u500b\u306e\u6620\u753b\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<pre>\r\nMATCH (u:User {name: \"Cynthia Freeman\"})-[r:RATED]-&gt;(m:Movie)\r\nWITH m, u\r\nMATCH (m)-[:IN_GENRE]-&gt;(g:Genre)&lt;-[:IN_GENRE]-(rec:Movie)&lt;-[rr:RATED]-()\r\nWHERE NOT EXISTS( (u)-[:RATED]-&gt;(rec) )\r\nWITH rec.title AS recommended, g.name AS genre ,sum(distinct(rr.rating)) AS score\r\nRETURN recommended, genre, score ORDER BY score DESC LIMIT 10\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-03.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-03-360x212.jpg\" alt=\"\" width=\"360\" height=\"212\" class=\"alignnone size-medium wp-image-27111\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-03-360x212.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-03-768x451.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-03.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<p>\u898b\u305f\u6620\u753b\u306e\u30b8\u30e3\u30f3\u30eb\u306e\u504f\u308a(\u597d\u307f)\u3092\u8003\u616e\u3059\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30af\u30a8\u30ea\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre>\r\nMATCH (u:User {name: \"Cynthia Freeman\"})-[r:RATED]-&gt;(m:Movie)\r\nWITH m, u\r\nMATCH (m)-[:IN_GENRE]-&gt;(g:Genre)&lt;-[:IN_GENRE]-(rec:Movie)&lt;-[rr:RATED]-()\r\nWHERE NOT EXISTS( (u)-[:RATED]-&gt;(rec) )\r\nWITH rec.title AS recommended, g.name AS genre ,sum(rr.rating) AS score\r\nRETURN recommended, genre, score ORDER BY score DESC LIMIT 10\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-04.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-04-360x209.jpg\" alt=\"\" width=\"360\" height=\"209\" class=\"alignnone size-medium wp-image-27113\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-04-360x209.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-04-768x446.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-04.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<p>\u4e0a\u8a18\u306e2\u3064\u306e\u30af\u30a8\u30ea\u306e\u7d50\u679c\u306f\u8208\u5473\u6df1\u304f\u793a\u5506\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u4e0b\u5074\u306e\u30af\u30a8\u30ea\u306f\u3088\u308a\u7d50\u679c\u304c\u5b89\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u958b\u767a\u306b\u304a\u3044\u3066\u306f\u691c\u8a3c\u3057\u3084\u3059\u304f\u3001\u30c6\u30b9\u30c8\u3057\u3084\u3059\u3044\u3068\u3044\u3046\u7279\u6027\u3092\u6301\u3061\u307e\u3059\u3002\u3057\u304b\u3057\u30e6\u30fc\u30b6\u306e\u5074\u306b\u7acb\u3063\u3066\u307f\u308c\u3070\u3001\u6bce\u56de\u7d50\u679c\u304c\u5909\u308f\u3089\u306a\u3044\u30ea\u30b3\u30e1\u30f3\u30c9\u306f\u9b45\u529b\u7684\u306b\u898b\u3048\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u5909\u308f\u308a\u6620\u3048\u3057\u306a\u3044\u30ea\u30b3\u30e1\u30f3\u30c9\u5185\u5bb9\u306b\u98fd\u304d\u304c\u6765\u3066\u3001\u7d50\u679c\u7684\u306b\u30ea\u30b3\u30e1\u30f3\u30c9\u304c\u5229\u7528\u3055\u308c\u306a\u3044\u3068\u3044\u3046\u7d50\u679c\u3092\u62db\u304f\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u4e00\u65b9\u4e0a\u5074\u306e\u30af\u30a8\u30ea\u306f\u8996\u8074\u30b8\u30e3\u30f3\u30eb\u50be\u5411\u3092\u8003\u616e\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u30e9\u30f3\u30c0\u30e0\u6027\u304c\u3042\u308a\u3001\u6bce\u56de\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u7d50\u679c\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u57fa\u6e96\u304c\u66d6\u6627\u306b\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u5408\u3063\u3066\u3044\u308b\u3088\u3046\u306a\u5408\u3063\u3066\u3044\u306a\u3044\u3088\u3046\u306a\u3001\u5c11\u3057\u4e0d\u601d\u8b70\u306a\u611f\u899a\u306b\u3068\u3089\u308f\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u30e6\u30fc\u30b6\u306b\u3068\u3063\u3066\u898b\u308c\u3070\u3001\u6bce\u56de\u30ea\u30b3\u30e1\u30f3\u30c9\u3092\u898b\u308b\u305f\u3073\u306b\u65b0\u305f\u306a\u51fa\u4f1a\u3044\u304c\u3042\u308a\u3001\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u5185\u5bb9\u306b\u8208\u5473\u3092\u3072\u304b\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u5229\u7528\u30b7\u30fc\u30f3\u306b\u304a\u3044\u3066\u306f\u7cbe\u5ea6\u304c\u9ad8\u3051\u308c\u3070\u3088\u308a\u3088\u3044\u30ea\u30b3\u30e1\u30f3\u30c9\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u3042\u3048\u3066\u30e6\u30fc\u30b6\u306b\u63a2\u7d22\u306e\u4f59\u5730\u3092\u6b8b\u3057\u3066\u304a\u304f\u306e\u3082\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u8155\u306e\u898b\u305b\u3069\u3053\u308d\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u307e\u305f\u4e0a\u8a18\u306e\u30af\u30a8\u30ea\u6587\u3092\u898b\u3066\u308f\u304b\u308b\u3068\u304a\u308a\u3001\u6a5f\u68b0\u5b66\u7fd2\u306e\u985e\u306f\u5168\u304f\u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u3042\u305f\u304b\u3082 AI \u3063\u307d\u304f\u632f\u308b\u821e\u3046\u3088\u3046\u306a\u9762\u767d\u3055\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u300c\u30ea\u30b3\u30e1\u30f3\u30c9\u3063\u307d\u3044\u300d\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u7c21\u4fbf\u306b\u4f5c\u6210\u3057\u3001\u9ad8\u901f\u306b\u7d50\u679c\u304c\u5f97\u3089\u308c\u308b\u3053\u3068\u3082 Neo4j \u306e\u9b45\u529b\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n<h1>Jaccard\u4fc2\u6570<\/h1>\n<p>\u30ea\u30b3\u30e1\u30f3\u30c9\u3092\u7b97\u51fa\u3059\u308b\u8907\u6570\u306e\u8981\u7d20\u306b\u4fc2\u6570\u3092\u304b\u3051\u3001\u91cd\u307f\u4ed8\u3051\u3092\u3057\u3066\u3082\u3044\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u4ee5\u4e0b\u306e\u4f8b\u3067\u306f\u30b8\u30e3\u30f3\u30eb\u3001\u4ff3\u512a\u3001\u76e3\u7763\u305d\u308c\u305e\u308c\u304c\u540c\u3058\u3067\u3042\u308b\u5225\u306e\u6620\u753b\u306b\u5bfe\u3057\u3066\u3001\u30b8\u30e3\u30f3\u30eb\u3001\u4ff3\u512a\u3001\u76e3\u7763\u305d\u308c\u305e\u308c\u306b\u7570\u306a\u308b\u4fc2\u6570\u3092\u304b\u3051\u305f\u30b9\u30b3\u30a2\u3092\u7b97\u51fa\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre>\r\nMATCH (m:Movie) WHERE m.title = \"Wizard of Oz, The\"\r\nMATCH (m)-[:IN_GENRE]-&gt;(g:Genre)&lt;-[:IN_GENRE]-(rec:Movie)\r\n\r\nWITH m, rec, COUNT(*) AS gs\r\n\r\nOPTIONAL MATCH (m)&lt;-[:ACTED_IN]-(a:Actor)-[:ACTED_IN]-&gt;(rec)\r\nWITH m, rec, gs, COUNT(a) AS as\r\n\r\nOPTIONAL MATCH (m)&lt;-[:DIRECTED]-(d:Director)-[:DIRECTED]-&gt;(rec)\r\nWITH m, rec, gs, as, COUNT(d) AS ds\r\n\r\nRETURN rec.title AS recommendation, (5*gs)+(3*as)+(4*ds) AS score ORDER BY score DESC LIMIT 100\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-05.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-05-360x226.jpg\" alt=\"\" width=\"360\" height=\"226\" class=\"alignnone size-medium wp-image-27114\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-05-360x226.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-05-768x482.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-05.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<p>\u96c6\u5408\u9593\u306e\u985e\u4f3c\u6027\u3092\u6063\u610f\u7684\u306a\u4fc2\u6570\u3067\u306f\u306a\u304f\u3001\u3088\u308a\u4e00\u822c\u7684\u306a\u6307\u6a19\u3067\u793a\u3059\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u4f8b\u306f\u3001\u6620\u753b Inception(\u90a6\u984c: \u30a4\u30f3\u30bb\u30d7\u30b7\u30e7\u30f3)\u3068\u540c\u3058\u30b8\u30e3\u30f3\u30eb\u306b\u3042\u308b\u6620\u753b\u305d\u308c\u305e\u308c\u306b\u5bfe\u3057\u3066\u30b8\u30e3\u30f3\u30eb\u985e\u4f3c\u6027\u3092\u793a\u3059Jaccard\u4fc2\u6570\u3092\u8a08\u7b97\u3057\u3001\u985e\u4f3c\u6027\u306e\u9ad8\u3044\u9806\u306b\u8868\u793a\u3059\u308b\u30af\u30a8\u30ea\u3067\u3059\u3002<\/p>\n<pre>\r\nMATCH (m:Movie {title: \"Inception\"})-[:IN_GENRE]-&gt;(g:Genre)&lt;-[:IN_GENRE]-(other:Movie)\r\nWITH m, other, COUNT(g) AS intersection, COLLECT(g.name) AS i\r\nMATCH (m)-[:IN_GENRE]-&gt;(mg:Genre)\r\nWITH m,other, intersection,i, COLLECT(mg.name) AS s1\r\nMATCH (other)-[:IN_GENRE]-&gt;(og:Genre)\r\nWITH m,other,intersection,i, s1, COLLECT(og.name) AS s2\r\n\r\nWITH m,other,intersection,s1,s2\r\n\r\nWITH m,other,intersection,s1+filter(x IN s2 WHERE NOT x IN s1) AS union, s1, s2\r\n\r\nRETURN m.title, other.title, s1,s2,((1.0*intersection)\/SIZE(union)) AS jaccard ORDER BY jaccard DESC LIMIT 100\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-06.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-06-360x228.jpg\" alt=\"\" width=\"360\" height=\"228\" class=\"alignnone size-medium wp-image-27115\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-06-360x228.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-06-768x486.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-06.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<p>\u30b8\u30e3\u30f3\u30eb\u3067\u306f\u306a\u304f\u4ed6\u306e\u8981\u7d20(\u51fa\u6f14\u4ff3\u512a\u3001\u76e3\u7763\u306a\u3069)\u306b\u5bfe\u3057\u3066\u3082Jaccard\u4fc2\u6570\u306f\u7b97\u51fa\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre>\r\nMATCH (m:Movie {title: \"Inception\"})-[:IN_GENRE|:ACTED_IN|:DIRECTED]-(t)&lt;-[:IN_GENRE|:ACTED_IN|:DIRECTED]-(other:Movie)\r\nWITH m, other, COUNT(t) AS intersection, COLLECT(t.name) AS i\r\nMATCH (m)-[:IN_GENRE|:ACTED_IN|:DIRECTED]-(mt)\r\nWITH m,other, intersection,i, COLLECT(mt.name) AS s1\r\nMATCH (other)-[:IN_GENRE|:ACTED_IN|:DIRECTED]-(ot)\r\nWITH m,other,intersection,i, s1, COLLECT(ot.name) AS s2\r\n\r\nWITH m,other,intersection,s1,s2\r\n\r\nWITH m,other,intersection,s1+filter(x IN s2 WHERE NOT x IN s1) AS union, s1, s2\r\n\r\nRETURN m.title, other.title, s1,s2,((1.0*intersection)\/SIZE(union)) AS jaccard ORDER BY jaccard DESC LIMIT 100\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-07.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-07-360x227.jpg\" alt=\"\" width=\"360\" height=\"227\" class=\"alignnone size-medium wp-image-27116\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-07-360x227.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-07-768x484.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-07.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<h1>\u624b\u6cd52 - \u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/h1>\n<p>\u6b21\u306f\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u5b9a\u756a\u3068\u3082\u8a00\u3048\u308b\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u3084\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306fAmazon.com\u306e\u300c\u304a\u3059\u3059\u3081\u5546\u54c1\u300d\u306e\u4f8b\u304c\u3042\u307e\u308a\u306b\u6709\u540d\u3067\u3059\u3002\u591a\u304f\u306e\u30e6\u30fc\u30b6\u306e\u55dc\u597d\u60c5\u5831\u3092\u84c4\u7a4d\u3057\u3001\u3042\u308b\u30e6\u30fc\u30b6\u3068\u55dc\u597d\u306e\u985e\u4f3c\u3057\u305f\u4ed6\u306e\u30e6\u30fc\u30b6\u306e\u60c5\u5831\u3092\u7528\u3044\u3066\u81ea\u52d5\u7684\u306b\u63a8\u8ad6\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u4f8b\u306f\u3082\u3063\u3068\u3082\u539f\u59cb\u7684\u306a\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u4f8b\u3067\u3059\u3002\u81ea\u5206\u3068\u4f3c\u305f\u30e6\u30fc\u30b6\u304c\u8cb7\u3063\u3066\u3044\u308b\u30a2\u30a4\u30c6\u30e0\u306f\u3001\u81ea\u5206\u306b\u5408\u3046\u304b\u3082\u3057\u308c\u306a\u3044\u305f\u3081\u3001\u30ea\u30b3\u30e1\u30f3\u30c9\u306e\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u30af\u30a8\u30ea\u306f\u3001(\u81ea\u5206\u3068\u540c\u69d8\u306b)\u6620\u753b Crimson Tide(\u90a6\u984c: \u30af\u30ea\u30e0\u30be\u30f3\u30fb\u30bf\u30a4\u30c9)\u306b\u8a55\u4fa1\u3092\u4e0e\u3048\u305f\u30e6\u30fc\u30b6\u304c\u8a55\u4fa1\u3057\u305f\u6620\u753b\u3092\u62bd\u51fa\u3057\u307e\u3059\u3002<\/p>\n<pre>\r\nMATCH (m:Movie {title: \"Crimson Tide\"})&lt;-[:RATED]-(u:User)-[:RATED]-&gt;(rec:Movie)\r\nRETURN rec.title AS recommendation, COUNT(*) AS usersWhoAlsoWatched\r\nORDER BY usersWhoAlsoWatched DESC LIMIT 25\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-08.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-08-360x218.jpg\" alt=\"\" width=\"360\" height=\"218\" class=\"alignnone size-medium wp-image-27117\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-08-360x218.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-08-768x466.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-08.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<p>\u3064\u307e\u308a\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3067\u306f2\u4eba\u306e\u30e6\u30fc\u30b6\u30012\u3064\u306e\u30a2\u30a4\u30c6\u30e0\u304c\u3069\u306e\u7a0b\u5ea6\u985e\u4f3c\u3057\u3066\u3044\u308b\u304b\u3092\u5b9a\u91cf\u5316\u3057\u307e\u3059\u30022\u3064\u306e\u4eba\u30fb\u30e2\u30ce\u306e\u9593\u306e\u985e\u4f3c\u6027\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u793a\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/cosine.png\" alt=\"\" width=\"600\" height=\"171\" class=\"alignnone size-full wp-image-27118\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/cosine.png 600w, \/wp-content\/uploads\/2019\/03\/cosine-360x103.png 360w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\"\/><\/p>\n<p>\u30b3\u30b5\u30a4\u30f3\u985e\u4f3c\u5ea6\u306e\u8a08\u7b97\u306b\u57fa\u3065\u304d\u3001\"Cynthia Freeman\"\u306b\u6700\u3082\u8fd1\u3044\u597d\u307f\u3092\u6301\u3064\u30e6\u30fc\u30b6\u3092\u62bd\u51fa\u3057\u3001\u985e\u4f3c\u6027\u3068\u8a55\u4fa1\u306b\u57fa\u3065\u304d\u6620\u753b\u3092\u30b9\u30b3\u30a2\u30ea\u30f3\u30b0\u3057\u3066\u30e6\u30fc\u30b6\u306b\u63d0\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre>\r\nMATCH (p1:User {name: \"Cynthia Freeman\"})-[x:RATED]-&gt;(m:Movie)&lt;-[y:RATED]-(p2:User)\r\nWITH COUNT(m) AS numbermovies, SUM(x.rating * y.rating) AS xyDotProduct,\r\nSQRT(REDUCE(xDot = 0.0, a IN COLLECT(x.rating) | xDot + a^2)) AS xLength,\r\nSQRT(REDUCE(yDot = 0.0, b IN COLLECT(y.rating) | yDot + b^2)) AS yLength,\r\np1, p2 WHERE numbermovies &gt; 10\r\nWITH p1, p2, xyDotProduct \/ (xLength * yLength) AS sim\r\nORDER BY sim DESC LIMIT 10\r\n\r\nMATCH (p2)-[r:RATED]-&gt;(m:Movie) WHERE NOT EXISTS( (p1)-[:RATED]-&gt;(m) )\r\nRETURN p1.name, p2.name, m.title, SUM(sim*r.rating) AS score\r\nORDER BY score DESC LIMIT 25\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-09.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-09-360x191.jpg\" alt=\"\" width=\"360\" height=\"191\" class=\"alignnone size-medium wp-image-27120\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-09-360x191.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-09-768x408.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-09.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<p>k\u8fd1\u508d\u6cd5(k-nearest Neighbor, kNN)\u3092\u4f7f\u3046\u306e\u3082\u3044\u3044\u30a2\u30a4\u30c7\u30a2\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<pre>\r\nMATCH (u1:User {name:\"Cynthia Freeman\"})-[r:RATED]-&gt;(m:Movie)\r\nWITH u1, avg(r.rating) AS u1_mean\r\n\r\nMATCH (u1)-[r1:RATED]-&gt;(m:Movie)&lt;-[r2:RATED]-(u2)\r\nWITH u1, u1_mean, u2, COLLECT({r1: r1, r2: r2}) AS ratings WHERE size(ratings) &gt; 10\r\n\r\nMATCH (u2)-[r:RATED]-&gt;(m:Movie)\r\nWITH u1, u1_mean, u2, avg(r.rating) AS u2_mean, ratings\r\n\r\nUNWIND ratings AS r\r\n\r\nWITH sum( (r.r1.rating-u1_mean) * (r.r2.rating-u2_mean) ) AS nom,\r\n     sqrt( sum( (r.r1.rating - u1_mean)^2) * sum( (r.r2.rating - u2_mean) ^2)) AS denom,\r\n     u1, u2 WHERE denom &lt;&gt; 0\r\n\r\nWITH u1, u2, nom\/denom AS pearson\r\nORDER BY pearson DESC LIMIT 10\r\n\r\nMATCH (u2)-[r:RATED]-&gt;(m:Movie) WHERE NOT EXISTS( (u1)-[:RATED]-&gt;(m) )\r\n\r\nRETURN u1.name, u2.name, m.title, SUM( pearson * r.rating) AS score\r\nORDER BY score DESC LIMIT 25\r\n<\/pre>\n<p><a href=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-10.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-10-360x178.jpg\" alt=\"\" width=\"360\" height=\"178\" class=\"alignnone size-medium wp-image-27121\" srcset=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2019\/03\/190324-10-360x178.jpg 360w, \/wp-content\/uploads\/2019\/03\/190324-10-768x381.jpg 768w, \/wp-content\/uploads\/2019\/03\/190324-10.jpg 900w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\"\/><\/a><\/p>\n<h2>\u3055\u3044\u3054\u306b<\/h2>\n<p>Neo4j\u3092\u6d3b\u7528\u3057\u3066\u4f5c\u6210\u3057\u305f\u30b0\u30e9\u30d5\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u3001\u3044\u308d\u3044\u308d\u306a\u30ea\u30b3\u30e1\u30f3\u30c9\u304c\u3067\u304d\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3057\u305f\u3002\u30ea\u30b3\u30e1\u30f3\u30c9\u81ea\u4f53\u306f\u4eca\u3067\u306f\u3042\u308b\u7a0b\u5ea6\u78ba\u7acb\u3055\u308c\u305f\u30b8\u30e3\u30f3\u30eb\u3067\u3042\u308a\u300c\u3053\u306e\u65b9\u6cd5\u3067\u306a\u3051\u308c\u3070\u3067\u304d\u306a\u3044\u300d\u3068\u3044\u3046\u3088\u3046\u306a\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u69d8\u3005\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u5fdc\u3058\u305f\u5de5\u592b\u304c\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3082\u9b45\u529b\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u4e0a\u8a18\u306b\u8ff0\u3079\u305f\u4f8b\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u4ed6\u306e\u6a5f\u68b0\u5b66\u7fd2\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u305d\u306e\u4eba\u30fb\u30b5\u30fc\u30d3\u30b9\u306a\u3089\u3067\u306f\u306e\u5473\u4ed8\u3051\u3092\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u4f7f\u7528\u3057\u305fSandbox\u306e\u30c7\u30fc\u30bf\u91cf\u306f\u30ce\u30fc\u30c9\u6570: 30,000(\u3046\u3061\u30e6\u30fc\u30b6\u6570: 671)\u3001\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u6570: 170,000\u3068\u5c0f\u898f\u6a21\u306a\u3082\u306e\u3067\u3059\u304c\u3001Neo4j\u81ea\u4f53\u306f\u30ce\u30fc\u30c9\u6570\u3001\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u6570\u304c\u6570\u5343\u4e07\u3001\u3068\u3044\u3063\u305f\u5927\u898f\u6a21\u306a\u30b0\u30e9\u30d5\u30c7\u30fc\u30bf\u3067\u3082\u9ad8\u901f\u306b\u52d5\u4f5c\u3057\u307e\u3059\u3002\u69d8\u3005\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u5fdc\u7528\u304c\u52b9\u304f\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u4eca\u5f8c\u3082 Neo4j Sandbox \u306e\u7d39\u4ecb\u8a18\u4e8b\u3092\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u306e\u3067\u3054\u671f\u5f85\u304f\u3060\u3055\u3044\u3002\u3067\u306f\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u6728\u5185\u3067\u3059\u3002 \u4e00\u822c\u7684\u306b\u30d1\u30fc\u30bd\u30ca\u30eb\u30ea\u30b3\u30e1\u30f3\u30c9(Amazon\u306e\u300c\u3053\u306e\u5546\u54c1\u3092\u8cfc\u5165\u3057\u305f\u4eba\u306f\u3053\u306e\u3088\u3046\u306a\u5546\u54c1\u306b\u3082\u8208\u5473\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u300d\u306e\u3088\u3046\u306a\u3082\u306e)\u306e\u5b9f\u88c5\u306b\u306f\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u5143\u306b\u3001\u6a5f\u68b0\u5b66\u7fd2\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u99c6\u4f7f\u3057\u3066\u5b9f\u88c5\u3059\u308b [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":16264,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[83,37,16],"tags":[46],"class_list":["post-27095","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dataanalytics","category-neo4j","category-author","tag-neo4j"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Neo4j Sandbox\u7d39\u4ecb: Neo4j\u3092\u6d3b\u7528\u3057\u305f\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30ea\u30b3\u30e1\u30f3\u30c9 #neo4j - Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3<\/title>\n<meta name=\"description\" content=\"DataAnalytics, Neo4j, \u8457\u8005\uff08Author\uff09 |\u3053\u3093\u306b\u3061\u306f\uff01\u6728\u5185\u3067\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.creationline.com\/tech-blog\/data-management\/dataanalytics\/27095\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Neo4j Sandbox\u7d39\u4ecb: Neo4j\u3092\u6d3b\u7528\u3057\u305f\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30ea\u30b3\u30e1\u30f3\u30c9 #neo4j - Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3\" \/>\n<meta property=\"og:description\" content=\"DataAnalytics, Neo4j, \u8457\u8005\uff08Author\uff09 |\u3053\u3093\u306b\u3061\u306f\uff01\u6728\u5185\u3067\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.creationline.com\/tech-blog\/data-management\/dataanalytics\/27095\" \/>\n<meta property=\"og:site_name\" content=\"Tech 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