{"id":382,"date":"2013-07-09T18:10:49","date_gmt":"2013-07-09T09:10:49","guid":{"rendered":"https:\/\/blog.id774.net\/entry\/?p=382"},"modified":"2014-02-23T22:02:15","modified_gmt":"2014-02-23T13:02:15","slug":"%e7%b5%b1%e8%a8%88%e5%ad%a6%e3%81%ab%e9%96%a2%e9%80%a3%e3%81%97%e3%81%9f%e3%83%91%e3%83%83%e3%82%b1%e3%83%bc%e3%82%b8%e3%82%92-2-%e3%81%a4%e4%bd%9c%e3%81%a3%e3%81%9f","status":"publish","type":"post","link":"https:\/\/blog.id774.net\/entry\/2013\/07\/09\/382\/","title":{"rendered":"\u7d71\u8a08\u5b66\u306b\u95a2\u9023\u3057\u305f\u30d1\u30c3\u30b1\u30fc\u30b8\u3092 2 \u3064\u4f5c\u3063\u305f"},"content":{"rendered":"

\u81ea\u5206\u304c\u5229\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u306e\u3067 ruby \u3067\u5b9f\u88c5\u3055\u308c\u305f\u30ca\u30a4\u30fc\u30d6\u30d9\u30a4\u30ba\u5206\u985e\u5668<\/a>\u304a\u3088\u3073 K \u5e73\u5747\u6cd5\u30af\u30e9\u30b9\u30bf\u30ea\u30f3\u30b0<\/a>\u306e\u305f\u3081\u306e gem \u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30ea\u30ea\u30fc\u30b9\u3057\u305f<\/a>\u3002<\/p>\n

\u3044\u3064\u3082\u901a\u308a gem install \u30b3\u30de\u30f3\u30c9\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u308b\u3002<\/p>\n

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<\/div><\/td>
gem install naivebayes
\ngem install kmeans<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

NaiveBayes<\/a>
\nhttps:\/\/rubygems.org\/gems\/naivebayes<\/a><\/p>\n

K-means clustering<\/a>
\nhttps:\/\/rubygems.org\/gems\/kmeans
\n<\/a><\/p>\n

\u4f7f\u3044\u65b9\u306f\u4e0a\u304b\u3089\u305f\u3069\u308c\u308b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3084\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u898b\u3066\u306d\u3068\u3044\u3046\u611f\u3058\u306a\u306e\u3067\u3059\u304c\u3001\u305b\u3063\u304b\u304f\u306a\u306e\u3067\u66f8\u304f\u3068\u3053\u3093\u306a\u611f\u3058\u306b\u306a\u308b\u3002<\/p>\n

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<\/div><\/td>
require 'naivebayes'
\n
\n# \u591a\u5909\u6570\u30d9\u30eb\u30cc\u30fc\u30a4\u30e2\u30c7\u30eb
\nputs "--- The Bernoulli model ---"
\nclassifier = NaiveBayes::Classifier.new(:model => "berounoulli")
\n
\n# \u5206\u985e\u5668\u3092\u8a13\u7df4\u3059\u308b
\nclassifier.train("positive", {"aaa" => 0, "bbb" => 1})
\nclassifier.train("negative", {"ccc" => 2, "ddd" => 3})
\nresult = classifier.classify({"aaa" => 1, "bbb" => 1})
\n
\n# \u30dd\u30b8\u30c6\u30a3\u30d6\u3068\u5224\u5b9a\u3055\u308c\u308b
\np result # => {"positive" => 0.8767123287671234,"negative" => 0.12328767123287669}
\n
\n# \u591a\u9805\u5206\u5e03\u30e2\u30c7\u30eb
\nputs "--- Relation to multinomial unigram language model ---"
\n
\nclassifier = NaiveBayes::Classifier.new(:model => "multinomial")
\n
\n# \u5206\u985e\u5668\u3092\u8a13\u7df4\u3059\u308b
\nclassifier.train("positive", {"aaa" => 0, "bbb" => 1})
\nclassifier.train("negative", {"ccc" => 2, "ddd" => 3})
\nresult = classifier.classify({"aaa" => 1, "bbb" => 1})
\n
\n# \u30dd\u30b8\u30c6\u30a3\u30d6\u3068\u5224\u5b9a\u3055\u308c\u308b
\np result # => {"positive" => 0.9411764705882353,"negative" => 0.05882352941176469}<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u591a\u5909\u6570\u30d9\u30eb\u30cc\u30fc\u30a4\u30e2\u30c7\u30eb<\/a>\u3068\u591a\u9805\u5206\u5e03\u30e2\u30c7\u30eb<\/a>\u306e\u9055\u3044\u306f\u6559\u79d1\u66f8\u3084\u8ad6\u6587\u306a\u3069\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

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<\/div><\/td>
require 'kmeans\/pair'
\nrequire 'kmeans\/pearson'
\nrequire 'kmeans\/cluster'
\n
\n# \u30cf\u30c3\u30b7\u30e5\u306e\u5206\u5e03\u304b\u3089\u30d4\u30a2\u30bd\u30f3\u76f8\u95a2\u4fc2\u6570\u306b\u3088\u308a\u8ddd\u96e2\u3092\u6c7a\u5b9a
\nuniform_hash = {
\n"test01"=> {"hoge"=>0, "fuga"=>1, "piyo"=>0 },
\n"test02"=> {"hoge"=>2, "fuga"=>1, "piyo"=>3 },
\n"test03"=> {"hoge"=>3, "fuga"=>0, "piyo"=>1 },
\n"test04"=> {"hoge"=>0, "fuga"=>2, "piyo"=>0 },
\n"test05"=> {"hoge"=>4, "fuga"=>2, "piyo"=>3 },
\n"test06"=> {"hoge"=>3, "fuga"=>1, "piyo"=>1 }}
\n
\n# \u5206\u5272\u3059\u308b\u30af\u30e9\u30b9\u30bf\u30fc\u306e\u6570\u3092 centroid \u3067\u6307\u5b9a
\nresult = Kmeans::Cluster.new(uniform_hash, {
\n  :centroids => 5,
\n  :loop_max => 10
\n})
\nresult.make_cluster
\n
\n# \u7d50\u679c\u306f\u5b9f\u884c\u3054\u3068\u306b\u7570\u306a\u308b
\np result.cluster.values #=> [["test01", "test04"], ["test02"], ["test03", "test05"], ["test06"], []]<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u4eca\u306e\u3068\u3053\u308d\u96c6\u5408\u9593\u306e\u8ddd\u96e2\u7b97\u51fa\u306b\u306f\u30d4\u30a2\u30bd\u30f3\u76f8\u95a2\u4fc2\u6570<\/a>\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3002\u305d\u306e\u3046\u3061\u30de\u30f3\u30cf\u30c3\u30bf\u30f3\u8ddd\u96e2<\/a>\u306a\u3069\u3067\u3082\u6c42\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u81ea\u5206\u304c\u5229\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u306e\u3067 ruby \u3067\u5b9f\u88c5\u3055\u308c\u305f\u30ca\u30a4\u30fc\u30d6\u30d9\u30a4\u30ba\u5206\u985e\u5668\u304a\u3088\u3073 K \u5e73\u5747\u6cd5\u30af\u30e9\u30b9\u30bf\u30ea\u30f3\u30b0\u306e\u305f\u3081\u306e gem \u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30ea\u30ea\u30fc\u30b9\u3057\u305f\u3002 \u3044\u3064\u3082\u901a\u308a gem install \u30b3\u30de\u30f3\u30c9\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u308b\u3002 … \u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-382","post","type-post","status-publish","format-standard","hentry","category-diary"],"_links":{"self":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts\/382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/comments?post=382"}],"version-history":[{"count":0,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/posts\/382\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/media?parent=382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/categories?post=382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.id774.net\/entry\/wp-json\/wp\/v2\/tags?post=382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}