{"id":86542,"date":"2024-03-21T07:09:26","date_gmt":"2024-03-20T22:09:26","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/r%e8%a8%80%e8%aa%9e%e3%81%a7%e5%8d%94%e8%aa%bf%e3%83%95%e3%82%a3%e3%83%ab%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%a2%e3%83%ab%e3%82%b4%e3%83%aa%e3%82%ba%e3%83%a0%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99\/"},"modified":"2024-04-04T04:28:11","modified_gmt":"2024-04-03T19:28:11","slug":"r%e8%a8%80%e8%aa%9e%e3%81%a7%e5%8d%94%e8%aa%bf%e3%83%95%e3%82%a3%e3%83%ab%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%a2%e3%83%ab%e3%82%b4%e3%83%aa%e3%82%ba%e3%83%a0%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/r%e8%a8%80%e8%aa%9e%e3%81%a7%e5%8d%94%e8%aa%bf%e3%83%95%e3%82%a3%e3%83%ab%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%a2%e3%83%ab%e3%82%b4%e3%83%aa%e3%82%ba%e3%83%a0%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99\/","title":{"rendered":"R\u8a00\u8a9e\u3067\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b"},"content":{"rendered":"<p>R\u8a00\u8a9e\u3067\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5b9f\u73fe\u3059\u308b\u306b\u306f\u3001recommenderlab\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305a\u3001\u3053\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059:<\/p>\n<pre class=\"post-pre\"><code>install.packages<span class=\"hljs-punctuation\">(<\/span><span class=\"hljs-string\">\"recommenderlab\"<\/span><span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u6b21\u306b\u3001\u3053\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u3080\uff1a<\/p>\n<pre class=\"post-pre\"><code>library<span class=\"hljs-punctuation\">(<\/span>recommenderlab<span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u7d9a\u3044\u3066\u3001\u30c7\u30fc\u30bf\u3092\u6e96\u5099\u3057\u3066\u30ec\u30b3\u30e1\u30f3\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u30a2\u30a4\u30c6\u30e0\u8a55\u4fa1\u884c\u5217\u304c\u3042\u308b\u5834\u5408\u3001\u300cas(data, \u201crealRatingMatrix\u201d)\u300d\u3092\u4f7f\u7528\u3057\u3066\u3001\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u9069\u3057\u305f\u884c\u5217\u5f62\u5f0f\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001<\/p>\n<pre class=\"post-pre\"><code>data <span class=\"hljs-operator\">&lt;-<\/span> matrix<span class=\"hljs-punctuation\">(<\/span><span class=\"hljs-built_in\">c<\/span><span class=\"hljs-punctuation\">(<\/span><span class=\"hljs-number\">5<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-literal\">NA<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-number\">4<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-literal\">NA<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-number\">3<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-literal\">NA<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-literal\">NA<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-number\">2<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-number\">1<\/span><span class=\"hljs-punctuation\">)<\/span><span class=\"hljs-punctuation\">,<\/span> nrow <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">3<\/span><span class=\"hljs-punctuation\">,<\/span> ncol <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">3<\/span><span class=\"hljs-punctuation\">,<\/span> byrow <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-literal\">TRUE<\/span><span class=\"hljs-punctuation\">)<\/span>\r\nrownames<span class=\"hljs-punctuation\">(<\/span>data<span class=\"hljs-punctuation\">)<\/span> <span class=\"hljs-operator\">&lt;-<\/span> <span class=\"hljs-built_in\">c<\/span><span class=\"hljs-punctuation\">(<\/span><span class=\"hljs-string\">\"User1\"<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-string\">\"User2\"<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-string\">\"User3\"<\/span><span class=\"hljs-punctuation\">)<\/span>\r\ncolnames<span class=\"hljs-punctuation\">(<\/span>data<span class=\"hljs-punctuation\">)<\/span> <span class=\"hljs-operator\">&lt;-<\/span> <span class=\"hljs-built_in\">c<\/span><span class=\"hljs-punctuation\">(<\/span><span class=\"hljs-string\">\"Item1\"<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-string\">\"Item2\"<\/span><span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-string\">\"Item3\"<\/span><span class=\"hljs-punctuation\">)<\/span>\r\nratings <span class=\"hljs-operator\">&lt;-<\/span> as<span class=\"hljs-punctuation\">(<\/span>data<span class=\"hljs-punctuation\">,<\/span> <span class=\"hljs-string\">\"realRatingMatrix\"<\/span><span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u63a8\u85a6\u30b7\u30b9\u30c6\u30e0\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b<\/p>\n<pre class=\"post-pre\"><code>recommender <span class=\"hljs-operator\">&lt;-<\/span> Recommender<span class=\"hljs-punctuation\">(<\/span>ratings<span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u6b21\u306b\u3001\u3055\u307e\u3056\u307e\u306a\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u7528\u3044\u3066\u30ec\u30b3\u30e1\u30f3\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3044\u304f\u3064\u304b\u306e\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30e6\u30fc\u30b6\u30fc\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>user_based <span class=\"hljs-operator\">&lt;-<\/span> Recommender<span class=\"hljs-punctuation\">(<\/span>ratings<span class=\"hljs-punctuation\">,<\/span> method <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"UBCF\"<\/span><span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>\u30a2\u30a4\u30c6\u30e0\u30d9\u30fc\u30b9\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>item_based <span class=\"hljs-operator\">&lt;-<\/span> Recommender<span class=\"hljs-punctuation\">(<\/span>ratings<span class=\"hljs-punctuation\">,<\/span> method <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"IBCF\"<\/span><span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>\u884c\u5217\u5206\u89e3\u306a\u3069\u306e\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30fc<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>model_based <span class=\"hljs-operator\">&lt;-<\/span> Recommender<span class=\"hljs-punctuation\">(<\/span>ratings<span class=\"hljs-punctuation\">,<\/span> method <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"SVD\"<\/span><span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u6700\u5f8c\u306b\u3001recommend() \u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30ec\u30b3\u30e1\u30f3\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u4f8b: \u30e6\u30fc\u30b6\u30fc\u30d9\u30fc\u30b9\u306e\u30b3\u30e9\u30dc\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408:<\/p>\n<pre class=\"post-pre\"><code>recommendations <span class=\"hljs-operator\">&lt;-<\/span> recommend<span class=\"hljs-punctuation\">(<\/span>user_based<span class=\"hljs-punctuation\">,<\/span> ratings<span class=\"hljs-punctuation\">,<\/span> n <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">5<\/span><span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u308c\u306f\u5404\u30e6\u30fc\u30b6\u30fc\u306b5\u3064\u306e\u63a8\u5968\u30a2\u30a4\u30c6\u30e0\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u30b3\u30fc\u30c9 \u30b9\u30cb\u30da\u30c3\u30c8\u304c\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0 \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u5b9f\u88c5\u306b\u5f79\u7acb\u3066\u3070\u5e78\u3044\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u3042\u304f\u307e\u3067\u57fa\u672c\u7684\u306a\u4f8b\u306a\u306e\u3067\u3001\u72ec\u81ea\u306e\u30c7\u30fc\u30bf\u3068\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u8abf\u6574\u3068\u4fee\u6b63\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>R\u8a00\u8a9e\u3067\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5b9f\u73fe\u3059\u308b\u306b\u306f\u3001recommenderlab\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305a\u3001\u3053\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059: install.packages(&#8220;recomme [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-86542","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>R\u8a00\u8a9e\u3067\u5354\u8abf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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