{"id":19020,"date":"2025-04-07T12:30:00","date_gmt":"2025-04-07T03:30:00","guid":{"rendered":"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/?p=19020"},"modified":"2025-05-13T17:50:17","modified_gmt":"2025-05-13T08:50:17","slug":"%e3%80%902025%e5%b9%b4%e6%9c%80%e6%96%b0%e3%80%91tf-idf%e3%81%a8%e3%81%af%ef%bc%9fseo%e5%bc%b7%e5%8c%96%e3%81%ab%e6%ac%a0%e3%81%8b%e3%81%9b%e3%81%aa%e3%81%84%e9%87%8d%e8%a6%81%e6%8c%87%e6%a8%99","status":"publish","type":"post","link":"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/analysis\/%e3%80%902025%e5%b9%b4%e6%9c%80%e6%96%b0%e3%80%91tf-idf%e3%81%a8%e3%81%af%ef%bc%9fseo%e5%bc%b7%e5%8c%96%e3%81%ab%e6%ac%a0%e3%81%8b%e3%81%9b%e3%81%aa%e3%81%84%e9%87%8d%e8%a6%81%e6%8c%87%e6%a8%99\/","title":{"rendered":"\u30102025\u5e74\u6700\u65b0\u3011TF-IDF\u3068\u306f\uff1fSEO\u5f37\u5316\u306b\u6b20\u304b\u305b\u306a\u3044\u91cd\u8981\u6307\u6a19\uff01"},"content":{"rendered":"\n<p>\u30c7\u30b8\u30bf\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306e\u4e16\u754c\u3067\u306f\u3001\u691c\u7d22\u7d50\u679c\u306e\u4e0a\u4f4d\u306b\u8868\u793a\u3055\u308c\u308b\u304b\u3069\u3046\u304b\u304c\u30d3\u30b8\u30cd\u30b9\u306e\u6210\u679c\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u6700\u9069\u5316\uff08SEO\uff09\u306b\u304a\u3044\u3066\u3001\u826f\u8cea\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u91cd\u8981\u3060\u3068\u3088\u304f\u8a00\u308f\u308c\u307e\u3059\u304c\u3001\u3067\u306f\u300c\u826f\u8cea\u300d\u3068\u306f\u4f55\u304b\uff1f\u305d\u306e\u5224\u65ad\u57fa\u6e96\u306e\u4e00\u3064\u3068\u3057\u3066\u6ce8\u76ee\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u3001TF-IDF\u3068\u3044\u3046\u6307\u6a19\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001TF-IDF\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u304b\u3089\u3001\u5b9f\u969b\u306e\u6d3b\u7528\u65b9\u6cd5\u3001\u30e1\u30ea\u30c3\u30c8\u3001\u6ce8\u610f\u70b9\u307e\u3067\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/kantan.gmo\/?utm_source=owned&amp;utm_medium=banner\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"758\" src=\"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-1024x758.jpg\" alt=\"\" class=\"wp-image-27750\" srcset=\"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-1024x758.jpg 1024w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-300x222.jpg 300w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-768x569.jpg 768w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-1536x1138.jpg 1536w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-2048x1517.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">TF-IDF\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>TF-IDF\uff08Term Frequency-Inverse Document Frequency\uff09\u306f\u3001\u3042\u308b\u5358\u8a9e\u304c\u7279\u5b9a\u306e\u6587\u66f8\u5185\u3067\u3069\u308c\u304f\u3089\u3044\u91cd\u8981\u3067\u3042\u308b\u304b\u3092\u6e2c\u5b9a\u3059\u308b\u305f\u3081\u306e\u7d71\u8a08\u7684\u306a\u6307\u6a19\u3067\u3059\u3002\u3053\u306e\u8003\u3048\u65b9\u306f\u3001\u60c5\u5831\u691c\u7d22\u3084\u81ea\u7136\u8a00\u8a9e\u51e6\u7406\u306e\u5206\u91ce\u3067\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306f\u3001Web\u4e0a\u306e\u3042\u3089\u3086\u308b\u6587\u66f8\u306e\u4e2d\u304b\u3089\u30e6\u30fc\u30b6\u30fc\u304c\u6c42\u3081\u308b\u60c5\u5831\u3092\u898b\u3064\u3051\u308b\u305f\u3081\u306b\u3001\u3053\u306e\u3088\u3046\u306a\u6570\u5024\u7684\u306a\u4ed5\u7d44\u307f\u3092\u4f7f\u3063\u3066\u3001\u6587\u66f8\u306e\u300c\u610f\u5473\u306e\u6fc3\u3055\u300d\u3084\u300c\u95a2\u9023\u6027\u300d\u3092\u5224\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">TF\uff08Term Frequency\uff09\uff1a\u5358\u8a9e\u306e\u51fa\u73fe\u983b\u5ea6<\/h3>\n\n\n\n<p>TF\u306f\u3001\u5358\u8a9e\u304c\u305d\u306e\u6587\u66f8\u5185\u3067\u3069\u308c\u304f\u3089\u3044\u983b\u7e41\u306b\u767b\u5834\u3059\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u305d\u306e\u6587\u66f8\u306b\u304a\u3051\u308b\u305d\u306e\u5358\u8a9e\u306e\u300c\u91cd\u8981\u5ea6\u300d\u3092\u793a\u3059\u6700\u521d\u306e\u6307\u6a19\u3067\u3059\u3002\u305f\u3060\u3057\u5358\u7d14\u306b\u51fa\u73fe\u56de\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u3060\u3051\u3067\u306f\u3001\u6587\u66f8\u306e\u9577\u3055\u306b\u3088\u3063\u3066\u6570\u5024\u304c\u5909\u308f\u3063\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u5168\u5358\u8a9e\u6570\u3067\u5272\u308b\u3053\u3068\u3067\u300c\u51fa\u73fe\u6bd4\u7387\u300d\u3092\u7b97\u51fa\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048\u3070\u3001500\u8a9e\u306e\u6587\u7ae0\u306e\u4e2d\u306b\u300c\u732b\u300d\u304c10\u56de\u51fa\u3066\u304d\u305f\u5834\u5408\u3001TF\u306f10 \u00f7 500 = 0.02\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u5024\u304c\u9ad8\u3044\u307b\u3069\u3001\u305d\u306e\u5358\u8a9e\u304c\u305d\u306e\u6587\u66f8\u306e\u4e2d\u3067\u3088\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3001\u30c6\u30fc\u30de\u3084\u4e3b\u984c\u306b\u8fd1\u3044\u5358\u8a9e\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">IDF\uff08Inverse Document Frequency\uff09\uff1a\u5358\u8a9e\u306e\u5e0c\u5c11\u6027\u3068\u8a08\u7b97\u65b9\u6cd5<\/h3>\n\n\n\n<p>IDF\u306f\u3001\u3042\u308b\u5358\u8a9e\u304c\u3069\u308c\u3060\u3051\u300c\u73cd\u3057\u3044\u300d\u304b\u3001\u3064\u307e\u308a\u4ed6\u306e\u6587\u66f8\u306b\u767b\u5834\u3057\u3066\u3044\u306a\u3044\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u3088\u304f\u767b\u5834\u3059\u308b\u5358\u8a9e\u3001\u305f\u3068\u3048\u3070\u300c\u306f\u300d\u300c\u306e\u300d\u300c\u3053\u3068\u300d\u306a\u3069\u306f\u3001\u3069\u3093\u306a\u6587\u66f8\u306b\u3082\u51fa\u3066\u304f\u308b\u305f\u3081\u3001\u91cd\u8981\u3068\u306f\u898b\u306a\u3055\u308c\u307e\u305b\u3093\u3002\u9006\u306b\u3001\u3042\u308b\u5358\u8a9e\u304c\u7279\u5b9a\u306e\u6587\u66f8\u306b\u3060\u3051\u73fe\u308c\u3066\u3044\u3066\u3001\u4ed6\u306b\u306f\u307b\u3068\u3093\u3069\u767b\u5834\u3057\u306a\u3044\u5834\u5408\u3001\u305d\u306e\u5358\u8a9e\u306f\u60c5\u5831\u4fa1\u5024\u304c\u9ad8\u3044\u3068\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>IDF\u306e\u8a08\u7b97\u5f0f\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>IDF(t, D) = log\uff08|D| \/ (df(t) + 1)\uff09<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>|D|<\/code>\uff1a\u6587\u66f8\u5168\u4f53\u306e\u6570<\/li>\n\n\n\n<li><code>df(t)<\/code>\uff1a\u5358\u8a9et\u3092\u542b\u3080\u6587\u66f8\u6570<\/li>\n<\/ul>\n\n\n\n<p>\u305f\u3068\u3048\u3070\u3001100\u672c\u306e\u6587\u66f8\u304c\u3042\u308a\u3001\u305d\u306e\u3046\u30615\u672c\u306b\u300c\u4fdd\u8a3c\u4ed8\u304d\u300d\u3068\u3044\u3046\u5358\u8a9e\u304c\u767b\u5834\u3059\u308b\u3068\u3057\u307e\u3059\u3002IDF\u306flog(100 \/ (5 + 1)) = log(16.66\u2026) \u2252 1.22 \u3068\u306a\u308a\u307e\u3059\u3002\u767b\u5834\u983b\u5ea6\u304c\u5c11\u306a\u3044\u307b\u3069IDF\u306e\u5024\u306f\u9ad8\u304f\u306a\u308a\u3001\u300c\u4fdd\u8a3c\u4ed8\u304d\u300d\u306f\u4ed6\u6587\u66f8\u306b\u306f\u3042\u307e\u308a\u767b\u5834\u3057\u306a\u3044\uff1d\u3053\u306e\u5358\u8a9e\u306f\u5dee\u5225\u5316\u8981\u7d20\u306b\u306a\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">TF-IDF\u306e\u8a08\u7b97\u65b9\u6cd5<\/h3>\n\n\n\n<p>TF\u3068IDF\u306e2\u3064\u306e\u6570\u5024\u3092\u639b\u3051\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u5358\u8a9e\u306e\u91cd\u307f\uff08\u91cd\u8981\u5ea6\uff09\u304c\u7b97\u51fa\u3055\u308c\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001TF\u304c\u9ad8\u304f\u3066\u3082\u4ed6\u306e\u591a\u304f\u306e\u6587\u66f8\u3067\u3082\u4f7f\u308f\u308c\u3066\u3044\u308b\u8a00\u8449\u306a\u3089IDF\u304c\u4f4e\u304f\u306a\u308a\u3001\u7d50\u679c\u3068\u3057\u3066TF-IDF\u306e\u30b9\u30b3\u30a2\u3082\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u9006\u306b\u3001TF\u3082\u9ad8\u304fIDF\u3082\u9ad8\u3044\u5358\u8a9e\u306f\u3001\u975e\u5e38\u306b\u91cd\u8981\u3068\u307f\u306a\u3055\u308c\u308b\u5358\u8a9e\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306bTF-IDF\u306f\u3001\u5358\u7d14\u306a\u51fa\u73fe\u56de\u6570\u3067\u306f\u306a\u304f\u3001\u300c\u6587\u66f8\u5185\u3067\u3088\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u300d\u304b\u3064\u300c\u4ed6\u306e\u6587\u66f8\u3067\u306f\u3042\u307e\u308a\u4f7f\u308f\u308c\u3066\u3044\u306a\u3044\u300d\u5358\u8a9e\u3092\u898b\u3064\u3051\u308b\u305f\u3081\u306e\u4fbf\u5229\u306a\u6307\u6a19\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">TF-IDF\u306e\u8a08\u7b97\u306fPython\u3067\u7c21\u5358\u306b\u3067\u304d\u308b<\/h2>\n\n\n\n<p>TF-IDF\u306f\u624b\u8a08\u7b97\u3082\u3067\u304d\u307e\u3059\u304c\u3001\u5b9f\u52d9\u3067\u306fPython\u306e<code>scikit-learn<\/code>\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3046\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u7279\u306b\u4fbf\u5229\u306a\u306e\u304c<code>TfidfVectorizer<\/code>\u3068\u3044\u3046\u6a5f\u80fd\u3067\u3001\u6570\u884c\u306e\u30b3\u30fc\u30c9\u3067\u8907\u6570\u306e\u6587\u66f8\u3092\u5206\u6790\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306f\u305d\u306e\u7c21\u5358\u306a\u4f8b\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from sklearn.feature_extraction.text import TfidfVectorizer<br><br>documents = [<br>    \"\u732b\u306f\u30de\u30c3\u30c8\u306e\u4e0a\u306b\u5ea7\u3063\u305f\",<br>    \"\u72ac\u306f\u30e9\u30b0\u306e\u4e0a\u306b\u5ea7\u3063\u305f\",<br>    \"\u732b\u306f\u72ac\u306e\u4e0a\u306b\u5ea7\u3063\u305f\"<br>]<br><br>vectorizer = TfidfVectorizer()<br>tfidf_matrix = vectorizer.fit_transform(documents)<br><br># \u5358\u8a9e\u3068\u30b9\u30b3\u30a2\u3092\u8868\u793a<br>feature_names = vectorizer.get_feature_names_out()<br>for doc_idx, doc in enumerate(tfidf_matrix.toarray()):<br>    print(f\"\u6587\u66f8{doc_idx + 1}\")<br>    for word_idx, score in enumerate(doc):<br>        print(f\"{feature_names[word_idx]}: {score:.3f}\")<br><code><br><\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u305f\u3063\u305f\u6570\u884c\u306e\u30b3\u30fc\u30c9\u3067\u3001\u5404\u6587\u66f8\u306b\u304a\u3051\u308b\u5358\u8a9e\u306e\u91cd\u8981\u5ea6\u3092\u7b97\u51fa\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u51fa\u529b\u7d50\u679c\u3092\u3082\u3068\u306b\u3001\u3069\u306e\u5358\u8a9e\u304c\u305d\u306e\u6587\u7ae0\u306e\u30c6\u30fc\u30de\u306b\u5f37\u304f\u95a2\u9023\u3057\u3066\u3044\u308b\u304b\u304c\u4e00\u76ee\u3067\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">TF-IDF\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"614\" src=\"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/03\/TF-IDF\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8-visual-selection.png\" alt=\"\" class=\"wp-image-19025\" srcset=\"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/03\/TF-IDF\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8-visual-selection.png 680w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/03\/TF-IDF\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8-visual-selection-300x271.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8cea\u3092\u5ba2\u89b3\u7684\u306b\u8a55\u4fa1\u3067\u304d\u308b<\/h3>\n\n\n\n<p>\u5f93\u6765\u306f\u300c\u3053\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u5927\u4e8b\u3060\u308d\u3046\u300d\u3068\u3044\u3063\u305f\u76f4\u611f\u3084\u7d4c\u9a13\u306b\u983c\u308a\u304c\u3061\u3060\u3063\u305fSEO\u3082\u3001TF-IDF\u3092\u4f7f\u3048\u3070\u6570\u5024\u306b\u3088\u3063\u3066\u88cf\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u91cd\u8981\u8a9e\u304c\u4e0d\u8db3\u3057\u3066\u3044\u306a\u3044\u304b\u3001\u904e\u5270\u306b\u4f7f\u3044\u3059\u304e\u3066\u3044\u306a\u3044\u304b\u306a\u3069\u3082\u78ba\u8a8d\u3067\u304d\u308b\u305f\u3081\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u6539\u5584\u306e\u6307\u6a19\u3068\u3057\u3066\u975e\u5e38\u306b\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SEO\u5bfe\u7b56\u306b\u5f79\u7acb\u3064<\/h3>\n\n\n\n<p>SEO\u306b\u304a\u3044\u3066\u691c\u7d22\u9806\u4f4d\u3092\u4e0a\u3052\u308b\u305f\u3081\u306b\u306f\u3001\u691c\u7d22\u610f\u56f3\u306b\u30de\u30c3\u30c1\u3057\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u4f5c\u308a\u304c\u5fc5\u8981\u3067\u3059\u3002TF-IDF\u3092\u4f7f\u3048\u3070\u3001\u81ea\u793e\u30b3\u30f3\u30c6\u30f3\u30c4\u3068\u7af6\u5408\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u6bd4\u8f03\u3057\u3001\u3069\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u304c\u904e\u4e0d\u8db3\u306a\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u304b\u3092\u628a\u63e1\u3067\u304d\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u3001\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u304b\u3089\u306e\u8a55\u4fa1\u304c\u9ad8\u307e\u308a\u3001\u691c\u7d22\u9806\u4f4d\u306e\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u81ea\u52d5\u8981\u7d04\u30fb\u30ec\u30b3\u30e1\u30f3\u30c9\u30b7\u30b9\u30c6\u30e0\u306b\u3082\u5fdc\u7528\u53ef\u80fd<\/h3>\n\n\n\n<p>TF-IDF\u306f\u6587\u7ae0\u306e\u4e2d\u3067\u300c\u610f\u5473\u306e\u6fc3\u3044\u90e8\u5206\u300d\u3092\u62bd\u51fa\u3059\u308b\u306e\u306b\u3082\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u9577\u6587\u3092\u77ed\u304f\u8981\u7d04\u3059\u308b\u81ea\u52d5\u8981\u7d04\u30b7\u30b9\u30c6\u30e0\u3084\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u95a2\u9023\u60c5\u5831\u3092\u63d0\u6848\u3059\u308b\u30ec\u30b3\u30e1\u30f3\u30c9\u30a8\u30f3\u30b8\u30f3\u306e\u7cbe\u5ea6\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u95b2\u89a7\u5c65\u6b74\u304b\u3089\u91cd\u8981\u306a\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u62bd\u51fa\u3057\u3001\u305d\u308c\u306b\u95a2\u9023\u3057\u305f\u8a18\u4e8b\u3084\u5546\u54c1\u3092\u63d0\u6848\u3059\u308b\u306a\u3069\u306e\u6d3b\u7528\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6ce8\u610f\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"781\" height=\"428\" src=\"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/03\/\u6ce8\u610f\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8-visual-selection.png\" alt=\"\" class=\"wp-image-19026\" srcset=\"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/03\/\u6ce8\u610f\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8-visual-selection.png 781w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/03\/\u6ce8\u610f\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8-visual-selection-300x164.png 300w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/03\/\u6ce8\u610f\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8-visual-selection-768x421.png 768w\" sizes=\"auto, (max-width: 781px) 100vw, 781px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u6587\u66f8\u6570\u304c\u5c11\u306a\u3044\u3068\u7cbe\u5ea6\u304c\u843d\u3061\u308b<\/h3>\n\n\n\n<p>IDF\u306f\u300c\u4ed6\u306e\u6587\u66f8\u3068\u306e\u6bd4\u8f03\u300d\u304c\u524d\u63d0\u306e\u8a08\u7b97\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6587\u66f8\u304c3\u672c\u30845\u672c\u3068\u3044\u3063\u305f\u5c11\u6570\u3057\u304b\u306a\u3044\u72b6\u614b\u3067\u306f\u3001\u300c\u5e0c\u5c11\u6027\u300d\u304c\u6b63\u3057\u304f\u6e2c\u308c\u307e\u305b\u3093\u3002\u4e00\u5b9a\u4ee5\u4e0a\u306e\u6587\u66f8\u6570\uff08\u5c11\u306a\u304f\u3068\u308230\u301c50\u4ef6\uff09\u304c\u3042\u308b\u3068\u3001\u3088\u308a\u5b89\u5b9a\u3057\u305f\u5206\u6790\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u77ed\u6587\u3067\u306fTF\u30b9\u30b3\u30a2\u304c\u5c0f\u3055\u304f\u306a\u308b<\/h3>\n\n\n\n<p>Twitter\u306e\u6295\u7a3f\u3084\u5e83\u544a\u306e\u898b\u51fa\u3057\u306a\u3069\u3001\u975e\u5e38\u306b\u77ed\u3044\u6587\u66f8\u3067\u306f\u3001\u5358\u8a9e\u306e\u51fa\u73fe\u983b\u5ea6\u81ea\u4f53\u304c\u4f4e\u304f\u306a\u308b\u305f\u3081\u3001TF\u304c\u6a5f\u80fd\u3057\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u9577\u6587\u306e\u5206\u6790\u306b\u5411\u3044\u3066\u304a\u308a\u3001\u77ed\u6587\u3067\u306f\u5225\u306e\u624b\u6cd5\u3068\u4f75\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6587\u8108\u3092\u7406\u89e3\u3057\u306a\u3044<\/h3>\n\n\n\n<p>TF-IDF\u306f\u5358\u8a9e\u306e\u51fa\u73fe\u983b\u5ea6\u3084\u5e0c\u5c11\u6027\u306b\u57fa\u3065\u3044\u3066\u8a08\u7b97\u3055\u308c\u308b\u305f\u3081\u3001\u300c\u610f\u5473\u300d\u3084\u300c\u6587\u8108\u300d\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u305f\u3068\u3048\u3070\u3001\u82f1\u8a9e\u3067\u300cbank\u300d\u3068\u3044\u3046\u5358\u8a9e\u304c\u767b\u5834\u3057\u305f\u3068\u3057\u307e\u3059\u3002\u3053\u306e\u5358\u8a9e\u306f\u300c\u9280\u884c\uff08financial bank\uff09\u300d\u3092\u610f\u5473\u3059\u308b\u3053\u3068\u3082\u3042\u308c\u3070\u3001\u300c\u5ddd\u306e\u571f\u624b\uff08river bank\uff09\u300d\u3092\u610f\u5473\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002TF-IDF\u306f\u3053\u306e\u3088\u3046\u306a\u6587\u8108\u306e\u9055\u3044\u3092\u8a8d\u8b58\u305b\u305a\u3001\u3059\u3079\u3066\u306e\u300cbank\u300d\u3092\u540c\u3058\u5358\u8a9e\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6587\u8108\u7406\u89e3\u304c\u6c42\u3081\u3089\u308c\u308b\u30bf\u30b9\u30af\u3067\u306f\u3001BERT\u3084Word2Vec\u306a\u3069\u306e\u610f\u5473\u7406\u89e3\u306b\u512a\u308c\u305f\u624b\u6cd5\u3068\u4f75\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5177\u4f53\u4f8b\uff1a\u4e2d\u53e4\u8eca\u8ca9\u58f2\u306eSEO\u6226\u7565\u306bTF-IDF\u3092\u6d3b\u7528<\/h2>\n\n\n\n<p>\u3042\u308b\u4e2d\u53e4\u8eca\u8ca9\u58f2\u4f01\u696d\u3067\u306f\u3001\u81ea\u793e\u30b5\u30a4\u30c8\u306e\u554f\u3044\u5408\u308f\u305b\u6570\u304c\u4f38\u3073\u60a9\u3093\u3067\u3044\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u307e\u305aGoogle\u30a2\u30ca\u30ea\u30c6\u30a3\u30af\u30b94\uff08GA4\uff09\u3092\u4f7f\u3063\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u3069\u306e\u3088\u3046\u306a\u30ad\u30fc\u30ef\u30fc\u30c9\u3067\u8a2a\u308c\u3066\u3044\u308b\u304b\u3092\u5206\u6790\u3057\u307e\u3057\u305f\u3002\u3059\u308b\u3068\u300c\u8eca\u691c\u4ed8\u304d\u300d\u300c\u4fdd\u8a3c\u4ed8\u304d\u300d\u300c\u4f4e\u8d70\u884c\u8ddd\u96e2\u300d\u306a\u3069\u306e\u30ef\u30fc\u30c9\u304c\u9ad8\u983b\u5ea6\u3067\u691c\u7d22\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u6b21\u306b\u3001\u7af6\u5408\u4ed6\u793e\u306e\u30b5\u30a4\u30c8\u3068\u81ea\u793e\u30b5\u30a4\u30c8\u306eTF-IDF\u30b9\u30b3\u30a2\u3092\u6bd4\u8f03\u3057\u3001\u3053\u308c\u3089\u306e\u30ef\u30fc\u30c9\u304c\u81ea\u793e\u30da\u30fc\u30b8\u3067\u5341\u5206\u306b\u30ab\u30d0\u30fc\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u304c\u5224\u660e\u3002\u305d\u3053\u3067\u5bfe\u8c61\u30da\u30fc\u30b8\u306e\u6587\u7ae0\u306b\u3053\u308c\u3089\u306e\u8a9e\u53e5\u3092\u81ea\u7136\u306b\u7d44\u307f\u8fbc\u307f\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u6700\u9069\u5316\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u7d50\u679c\u3001\u691c\u7d22\u9806\u4f4d\u304c\u5411\u4e0a\u3057\u30011\u30f6\u6708\u3067\u554f\u3044\u5408\u308f\u305b\u6570\u304c20\uff05\u4ee5\u4e0a\u5897\u52a0\u3057\u305f\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>TF-IDF\u306f\u305f\u3060\u306e\u6570\u5f0f\u3067\u306f\u306a\u304f\u3001\u9867\u5ba2\u306e\u30cb\u30fc\u30ba\u306b\u5fdc\u3048\u308b\u305f\u3081\u306e\u300c\u53ef\u8996\u5316\u3055\u308c\u305f\u58f0\u300d\u3068\u8a00\u3048\u307e\u3059\u3002\u3069\u306e\u8a00\u8449\u304c\u9867\u5ba2\u306b\u3068\u3063\u3066\u4fa1\u5024\u304c\u3042\u308b\u306e\u304b\u3092\u77e5\u308b\u3053\u3068\u306f\u3001\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306e\u672c\u8cea\u306b\u8feb\u308b\u884c\u70ba\u3067\u3059\u3002\u7d4c\u9a13\u3084\u52d8\u306b\u983c\u308b\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u3044\u305f\u6539\u5584\u3092\u9032\u3081\u308b\u3053\u3068\u3067\u3001\u7af6\u4e89\u306e\u6fc0\u3057\u3044\u5e02\u5834\u3067\u3082\u512a\u4f4d\u306b\u7acb\u3066\u308b\u3067\u3057\u3087\u3046\u3002TF-IDF\u3092\u6b63\u3057\u304f\u7406\u89e3\u3057\u3001\u6226\u7565\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u7cbe\u5ea6\u3092\u9ad8\u3081\u3001\u6210\u679c\u306b\u7d50\u3073\u3064\u3051\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/kantan.gmo\/?utm_source=owned&amp;utm_medium=banner\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"758\" src=\"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-1024x758.jpg\" alt=\"\" class=\"wp-image-27750\" srcset=\"https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-1024x758.jpg 1024w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-300x222.jpg 300w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-768x569.jpg 768w, https:\/\/www.koukoku.jp\/service\/suketto\/marketer\/wp-content\/uploads\/2025\/05\/kantan\u9001\u5ba2-1536x1138.jpg 1536w, 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