{"id":304,"date":"2018-05-15T15:56:24","date_gmt":"2018-05-15T06:56:24","guid":{"rendered":"https:\/\/mieruca-ai.com\/ai\/?p=304"},"modified":"2019-08-29T09:48:00","modified_gmt":"2019-08-29T00:48:00","slug":"bi-gram_markov_model","status":"publish","type":"post","link":"https:\/\/mieruca-ai.com\/ai\/bi-gram_markov_model\/","title":{"rendered":"\u3010\u6280\u8853\u89e3\u8aac\u3011bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb"},"content":{"rendered":"<p style=\"text-align: right;\">\n\u57f7\u7b46\uff1a\u91d1\u5b50\u51b4\n<\/p>\n<p>\n\u4eca\u56de\u306f\uff0c\u5f62\u614b\u7d20\u89e3\u6790\u5668\u306e1\u3064\u3067\u3042\u308bMeCab\u5185\u3067<b>\u89e3\u6790\u30e2\u30c7\u30eb<\/b>\u3068\u3057\u3066\u7528\u3044\u3089\u308c\u3066\u3044\u308b<b><span style=\"color: #ff0000;\">bi-gram \u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb<\/span><\/b>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3059\u308b\uff0e<\/p>\n<p>\u521d\u3081\u306b\uff0c<b>bi-gram\u306e\u5143\u3068\u306a\u3063\u3066\u3044\u308b\uff0c<span style=\"color: #ff0000;\">N-gram<\/span><\/b>\u3068\u3044\u3046\u624b\u6cd5\u3092\u89e3\u8aac\u3057\u3088\u3046\uff0e<\/p>\n<p><!--more--><\/p>\n<h2>N-gram\u3068\u306f<\/h2>\n<h3>N-gram\u306e\u6982\u8981<\/h3>\n<p>\n<b>\u300cN-gram\u300d<\/b>\u3068\u306f\uff0c\u81ea\u7136\u8a00\u8a9e\u51e6\u7406\u5206\u91ce\u3067\u7528\u3044\u3089\u308c\u308b\u624b\u6cd5\u306e\uff11\u3064\u3067\u3042\u308b\uff0eN-gram\u3067\u306f\u5bfe\u8c61\u3068\u306a\u308b\u6587\u66f8\u3092<b>\u6587\u5b57\u5358\u4f4d\u306e\u8a18\u53f7\u5217<\/b>\u3068\u8003\u3048\uff0c<b><span style=\"color: #ff0000;\">\u96a3\u63a5\u3057\u305fN\u500b\u306e\u8a18\u53f7\u6bce\u306e\u51fa\u73fe\u983b\u5ea6(\u5ea6\u6570\u3068\u547c\u3076)\u3092\u96c6\u8a08<\/span><\/b>\u3059\u308b\uff0e<br \/>\n\u96a3\u63a5\u3057\u305f1\u500b\u306e\u8a18\u53f7\u304b\u3089\u306a\u308b\u8a18\u53f7\u5217(\u3064\u307e\u308a\uff0c1\u6587\u5b57)\u6bce\u306e\u5ea6\u6570\u3092<b>uni-gram<\/b>\uff0c2\u500b\u306e\u8a18\u53f7\u3092<b>bi-gram<\/b>\uff0c3\u500b\u306e\u8a18\u53f7\u306a\u3089\u3092<b>tri-gram<\/b>,&#8230;\u3068\u547c\u3076\uff0e\n<\/p>\n<h3>N-gram\u3092\u4f7f\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8(\u5f62\u614b\u7d20\u89e3\u6790\u3068\u306e\u6bd4\u8f03)<\/h3>\n<p>\nN-gram\u3067\u6587\u66f8\u3092\u5206\u5272\u3059\u308b\u3068\uff0c\u3069\u306e\u3088\u3046\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308b\u306e\u3060\u308d\u3046\u304b\uff0e\u4e3b\u306a\u30e1\u30ea\u30c3\u30c8\u3068\u3057\u3066\uff0c<b>\u6587\u6cd5\u60c5\u5831\u3092\u7528\u3044\u305a\u306b\u6587\u66f8\u3092\u5206\u89e3\u3067\u304d\u308b<\/b>\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u308b\uff0e<br \/>\n<a href=\"https:\/\/mieruca-ai.com\/ai\/morphological_analysis_mecab\/\">\u3010\u6280\u8853\u89e3\u8aac\u3011\u5f62\u614b\u7d20\u89e3\u6790\u3068MeCab\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/a>\u5185\u3067\u89e3\u8aac\u3057\u305f<b>\u5f62\u614b\u7d20\u89e3\u6790<\/b>\u3067\u306f\u8f9e\u66f8\u306b\u542b\u307e\u308c\u308b\u54c1\u8a5e\u60c5\u5831\u3092\u5143\u306b\u6587\u66f8\u3092\u5f62\u614b\u7d20\u6bce\u306b\u5206\u89e3\u3057\u305f\uff0e\u3053\u306e\u65b9\u6cd5\u306e\u5834\u5408\uff0c\u8a00\u8a9e\u306b\u5fdc\u3058\u305f\u8f9e\u66f8\u304c\u5fc5\u8981\u3068\u306a\u308b\uff0e<br \/>\nN-gram\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\uff0c\u6587\u6cd5\u60c5\u5831\u3092\u7528\u3044\u305a\u306b\u6587\u66f8\u3092\u5206\u89e3\u3067\u304d\u308b\u305f\u3081\uff0c<b><span style=\"color: #ff0000;\">\u8a00\u8a9e\u306b\u4f9d\u5b58\u3057\u306a\u3044\u6587\u66f8\u306e\u5206\u5272<\/span><\/b>\u304c\u53ef\u80fd\u3068\u306a\u308b\uff0e\u307e\u305f\uff0c\u8a00\u8a9e\u5b66\u7684\u306b\u610f\u5473\u3092\u6301\u305f\u306a\u3044\u8a18\u53f7\u5217\u306b\u3064\u3044\u3066\u3082\u96c6\u8a08\u304c\u53ef\u80fd\u306a\u305f\u3081\uff0c\u30c6\u30ad\u30b9\u30c8\u51e6\u7406\u3092\u542b\u3080\u81ea\u7136\u8a00\u8a9e\u51e6\u7406\u5206\u91ce\u3067\u306f\u591a\u304f\u7528\u3044\u3089\u308c\u3066\u3044\u308b\uff0e\n<\/p>\n<h3>N-gram\u306e\u8a08\u7b97\u4f8b\u3068\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0(python\u5b9f\u88c5)<\/h3>\n<p><strong>N-gram\u306e\u8a08\u7b97\u4f8b<\/strong><\/p>\n<p>\n\u4f8b\u6587\u3068\u3057\u3066\u300c\u304d\u3057\u3083\u304c\u304d\u3057\u3083\u306b\u304d\u3057\u3083\u3067\u304d\u3057\u3083\u3057\u305f(\u8a18\u8005\u304c\u8cb4\u793e\u306b\u6c7d\u8eca\u3067\u5e30\u793e\u3057\u305f)\u300d\u3092\u7528\u3044\u3066\uff0cN-gram\u3092N=1\u304b\u30893\u307e\u3067\u5b9f\u969b\u306b\u8a08\u7b97\u3057\u3066\u307f\u3088\u3046\uff0e<br \/>\n\u8a08\u7b97\u3057\u305funi-gram\uff0cbi-gram\uff0ctri-gram\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u306b\u306a\u308b\uff0e\u306a\u304a\uff0c<b><span style=\"color: #ff0000;\">\u76f8\u5bfe\u983b\u5ea6<\/span>\u306f\u8a18\u53f7\u5217\u6bce\u306e\u5ea6\u6570\u3092\u5168\u8a18\u53f7\u5217\u306e\u5ea6\u6570\u306e\u5408\u8a08\u3067\u5272\u3063\u305f\u5024<\/b>\u3067\u3042\u308b\uff0e<br \/>\n<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mieruca-ai.com\/ai\/wp-content\/uploads\/2018\/05\/fig01-2.png\" alt=\"\" width=\"938\" height=\"643\" class=\"alignnone size-full wp-image-307\" \/>\n<\/p>\n<p>\n\u307e\u305a\uff0c\u96a3\u63a5\u3057\u305f1\u500b\u306e\u8a18\u53f7\u6bce\u306e\u5ea6\u6570\u3067\u3042\u308b<b>uni-gram(N=1)<\/b>\u3092\u898b\u3066\u307f\u3088\u3046\uff0e<br \/>\n\u3053\u306e\u7d50\u679c\u304b\u3089\uff0c<b>\u300c\u304d\u3057\u3083\u300d\u306e\u51fa\u73fe\u983b\u5ea6\u304c\u9ad8\u3044<\/b>\u3053\u3068\u304c\u308f\u304b\u308b\uff0e\u3057\u304b\u3057\uff0c1\u6587\u5b57\u5358\u4f4d\u3067\u533a\u5207\u308b\u3068\u305d\u308c\u305e\u308c\u306e\u8a18\u53f7\u5217\u304c\u610f\u5473\u3092\u6301\u305f\u306a\u304f\u306a\u308b\u307b\u304b\uff0c\u6587\u7ae0\u304c\u591a\u304f\u306a\u308b\u306b\u3064\u308c\u3066\u52a9\u8a5e\u306b\u8a72\u5f53\u3059\u308b\u6587\u5b57\u306e\u51fa\u73fe\u983b\u5ea6\u3082\u6bd4\u4f8b\u7684\u306b\u5897\u52a0\u3059\u308b\u3068\u63a8\u6e2c\u3067\u304d\u308b\uff0e<br \/>\n\u3042\u308b\u7a0b\u5ea6\u610f\u5473\u306e\u3042\u308b\u8a18\u53f7\u5217\u6bce\u306e\u5ea6\u6570\u304c\u8a08\u7b97\u3067\u304d\uff0c\u6587\u7ae0\u306e\u6570\u304c\u5897\u3048\u308b\u3053\u3068\u306b\u3088\u308b\u52a9\u8a5e\u306e\u51fa\u73fe\u983b\u5ea6\u306e\u5897\u52a0\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306b\u304f\u3044N\u306e\u5024\u306f\u306a\u3044\u3060\u308d\u3046\u304b\uff0e\n<\/p>\n<p>\n\u6b21\u306b\uff0c<b>bi-gram(N=2)<\/b>\u306e\u7d50\u679c\u3092\u78ba\u8a8d\u3057\u3088\u3046\uff0e<br \/>\n\u96a3\u63a5\u3057\u305f\u8a18\u53f7\u306e\u500b\u6570\u3092<b>2\u500b<\/b>\u3068\u3057\u305f\u3053\u3068\u306b\u3088\u308a\uff0c\u6587\u66f8\u306e\u6570\u304c\u5897\u3048\u308b\u3053\u3068\u3067\u52a9\u8a5e\u306e\u51fa\u73fe\u983b\u5ea6\u304c\u6bd4\u4f8b\u7684\u306b\u5897\u52a0\u3059\u308b\u554f\u984c\u306f\u8efd\u6e1b\u3067\u304d\u308b\u3068\u898b\u8fbc\u307e\u308c\u308b\uff0e<br \/>\n\u3057\u304b\u3057\uff0c\u300c\u304d\u3057\u300d\u3084\u300c\u3057\u3083\u300d\u306a\u3069\uff0c\u60f3\u5b9a\u3068\u306f\u7570\u306a\u308b\u5206\u5272\u304c\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3060\uff0e\u3053\u308c\u3067\u306f\uff0c\u307e\u3060\u610f\u5473\u306e\u3042\u308b\u8a18\u53f7\u5217\u6bce\u306e\u5ea6\u6570\u304c\u8a08\u7b97\u3067\u304d\u3066\u3044\u308b\u3068\u306f\u8a00\u3048\u306a\u3044\u3060\u308d\u3046\uff0e\n<\/p>\n<p>\n\u6700\u5f8c\u306b\uff0c<b>tri-gram(N=3)<\/b>\u306e\u7d50\u679c\u3092\u78ba\u8a8d\u3057\u3088\u3046\uff0e<br \/>\n\u96a3\u63a5\u3057\u305f\u8a18\u53f7\u306e\u500b\u6570\u3092<b>3\u500b<\/b>\u3068\u3057\u305f\u3053\u3068\u306b\u3088\u308a\uff0cbi-gram\u306e\u6642\u3088\u308a\u3082\uff0c\u6587\u66f8\u306e\u6570\u304c\u5897\u3048\u308b\u3053\u3068\u3067\u52a9\u8a5e\u306e\u51fa\u73fe\u983b\u5ea6\u304c\u6bd4\u4f8b\u7684\u306b\u5897\u52a0\u3059\u308b\u554f\u984c\u306f<b>\u3055\u3089\u306b<\/b>\u8efd\u6e1b\u3067\u304d\u308b\u3068\u898b\u8fbc\u307e\u308c\u308b\uff0e<br \/>\n\u307e\u305f\uff0ctri-gram\u3067\u306f\u300c\u304d\u3057\u3083\u300d\u3068\u3044\u3046\u610f\u5473\u306e\u3042\u308b\u5358\u8a9e\u306b\u3064\u3044\u3066\u5206\u5272\u304c\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3060\uff0e\u4e00\u822c\u306b\uff0c<b><span style=\"color: #ff0000;\">\u65e5\u672c\u8a9e\u306e\u6587\u7ae0\u3092\u5206\u5272\u3059\u308b\u969b\u306fN=3\u3067\u3042\u308btri-gram\u3092\u63a1\u7528<\/span><\/b>\u3059\u308b\u5834\u5408\u304c\u591a\u3044\uff0e\n<\/p>\n<p><strong>N-gram\u306e\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0(python\u5b9f\u88c5)<\/strong><\/p>\n<p>\n\u4eca\u56de\u306f\u300eN-gram\u306e\u8a08\u7b97\u4f8b\u300f\u3067\u78ba\u8a8d\u3057\u305f\u3068\u304a\u308a\uff0c\u65e5\u672c\u8a9e\u306b\u5bfe\u3057\u3066\u4e00\u822c\u7684\u306b\u7528\u3044\u3089\u308c\u308b<b>tri-gram<\/b>\u306e\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068python\u306e\u5b9f\u88c5\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u8a18\u8f09\u3059\u308b\uff0e<br \/>\n\u4f8b\u6587\u3068\u3057\u3066\u300c\u304d\u3057\u3083\u304c\u304d\u3057\u3083\u306b\u304d\u3057\u3083\u3067\u304d\u3057\u3083\u3057\u305f(\u8a18\u8005\u304c\u8cb4\u793e\u306b\u6c7d\u8eca\u3067\u5e30\u793e\u3057\u305f)\u300d\u3092\u7528\u3044\u308b\uff0e<\/p>\n<p><\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0><br \/>\n\u2460\u4e0e\u3048\u3089\u308c\u305f\u6587\u7ae0\u30923\u6587\u5b57\u6bce\u306e\u8a18\u53f7\u5217\u306b\u5206\u5272\u3059\u308b\uff0e<br \/>\n\u2461\u5206\u5272\u5f8c\u306e\u6587\u5b57\u5217\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u5ea6\u6570\u3092\u8a08\u7b97<br \/>\n\u2462\u76f8\u5bfe\u5ea6\u6570\u3092\u8a08\u7b97<\/p>\n<pre class=\"lang:python decode:true \" title=\"tri-gram\u306e\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\" ># tri-gram\u306e\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\r\nfrom collections import Counter\r\ndef culc_trigram(str):\r\n\t# \u2460\u4e0e\u3048\u3089\u308c\u305f\u6587\u7ae0\u30923\u6587\u5b57\u305a\u3064\u306b\u5206\u5272\r\n\tsplit_str = [str[i:i+3] for i in range(0, len(str)-2, 1)]\r\n\r\n\t# \u2461\u5206\u5272\u5f8c\u306e\u6587\u5b57\u5217\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u5ea6\u6570\u3092\u8a08\u7b97\r\n\ttrigram = dict(Counter(split_str))\r\n\r\n\t# \u2462\u76f8\u5bfe\u5ea6\u6570\u3092\u8a08\u7b97\r\n\tsum_freq = sum(trigram.values())\r\n\ttrigram_rel = {}\r\n\tfor k, v in trigram.items():\r\n\t\ttrigram_rel.update({k : v \/ sum_freq})\r\n\r\n\treturn trigram, trigram_rel\r\n\r\nif __name__ == '__main__':\r\n\t# \"\u304d\u3057\u3083\u304c\u304d\u3057\u3083\u306b\u304d\u3057\u3083\u3067\u304d\u3057\u3083\u3057\u305f\"\u306etrigram\u3092\u8a08\u7b97\r\n\ttrigram, trigram_rel = culc_trigram(\"\u304d\u3057\u3083\u304c\u304d\u3057\u3083\u306b\u304d\u3057\u3083\u3067\u304d\u3057\u3083\u3057\u305f\")\r\n\tprint(trigram)\r\n\t#\t{'\u304d\u3057\u3083': 4, '\u3057\u3083\u304c': 1, '\u3083\u304c\u304d': 1, '\u304c\u304d\u3057': 1, '\u3057\u3083\u306b': 1, '\u3083\u306b\u304d': 1,\r\n\t#    '\u306b\u304d\u3057': 1, '\u3057\u3083\u3067': 1, '\u3083\u3067\u304d': 1, '\u3067\u304d\u3057': 1, '\u3057\u3083\u3057': 1, '\u3083\u3057\u305f': 1}\r\n\tprint(trigram_rel)\r\n\t#\t{'\u304d\u3057\u3083': 0.26666666666666666, '\u3057\u3083\u304c': 0.06666666666666667, '\u3083\u304c\u304d': 0.06666666666666667,\r\n\t#    '\u304c\u304d\u3057': 0.06666666666666667, '\u3057\u3083\u306b': 0.06666666666666667, '\u3083\u306b\u304d': 0.06666666666666667,\r\n\t#    '\u306b\u304d\u3057': 0.06666666666666667, '\u3057\u3083\u3067': 0.06666666666666667, '\u3083\u3067\u304d': 0.06666666666666667,\r\n\t#    '\u3067\u304d\u3057': 0.06666666666666667, '\u3057\u3083\u3057': 0.06666666666666667, '\u3083\u3057\u305f': 0.06666666666666667}<\/pre>\n<p>\n\u3053\u3053\u307e\u3067\u306e\u8aac\u660e\u3067N-gram\u306b\u3064\u3044\u3066\u7406\u89e3\u3067\u304d\u305f\u3060\u308d\u3046\uff0e\u3057\u304b\u3057\uff0cbi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3092\u7406\u89e3\u3059\u308b\u306b\u306f\uff0c\u4ed6\u306b<b>\u30de\u30eb\u30b3\u30d5\u9023\u9396<\/b>\u3092\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\uff0e\u3067\u306f\uff0c\u30de\u30eb\u30b3\u30d5\u9023\u9396\u3068\u306f\u4f55\u306a\u306e\u304b\uff0c\u89e3\u8aac\u3057\u3066\u3044\u3053\u3046\uff0e\n<\/p>\n<h2>\u30de\u30eb\u30b3\u30d5\u9023\u9396\u3068\u306f<\/h2>\n<h3>\u30de\u30eb\u30b3\u30d5\u9023\u9396\u306e\u6982\u8981<\/h3>\n<p>\n\u307e\u305a\uff0cwikipedia\u3088\u308a\u5f15\u7528\u3057\u305f\uff0c\u30de\u30eb\u30b3\u30d5\u9023\u9396\u306e\u5b9a\u7fa9\u3092\u78ba\u8a8d\u3059\u308b\uff0e<b>\u521d\u3081\u306f\u610f\u5473\u304c\u5206\u304b\u3089\u306a\u304f\u3066\u3082\u69cb\u308f\u306a\u3044\u306e\u3067\uff0c\u4e00\u5ea6\u76ee\u3092\u901a\u3057\u3066\u307b\u3057\u3044\uff0e<\/b><br \/>\n<b>&#8220;\u30de\u30eb\u30b3\u30d5\u9023\u9396\uff08\u30de\u30eb\u30b3\u30d5\u308c\u3093\u3055\u3001\u82f1: Markov chain\uff09\u3068\u306f\u3001\u78ba\u7387\u904e\u7a0b\u306e\u4e00\u7a2e\u3067\u3042\u308b\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u306e\u3046\u3061\u3001\u3068\u308a\u3046\u308b\u72b6\u614b\u304c\u96e2\u6563\u7684\uff08\u6709\u9650\u307e\u305f\u306f\u53ef\u7b97\uff09\u306a\u3082\u306e\uff08\u96e2\u6563\u72b6\u614b\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\uff09\u3092\u3044\u3046\u3002\u307e\u305f\u7279\u306b\u3001\u6642\u9593\u304c\u96e2\u6563\u7684\u306a\u3082\u306e\uff08\u6642\u523b\u306f\u6dfb\u3048\u5b57\u3067\u8868\u3055\u308c\u308b\uff09\u3092\u6307\u3059\u3053\u3068\u304c\u591a\u3044\uff08\u4ed6\u306b\u9023\u7d9a\u6642\u9593\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3068\u3044\u3046\u3082\u306e\u3082\u3042\u308a\u3001\u3053\u308c\u306f\u6642\u523b\u304c\u9023\u7d9a\u3067\u3042\u308b\uff09\u3002\u30de\u30eb\u30b3\u30d5\u9023\u9396\u306f\u3001\u672a\u6765\u306e\u6319\u52d5\u304c\u73fe\u5728\u306e\u5024\u3060\u3051\u3067\u6c7a\u5b9a\u3055\u308c\u3001\u904e\u53bb\u306e\u6319\u52d5\u3068\u7121\u95a2\u4fc2\u3067\u3042\u308b\uff08\u30de\u30eb\u30b3\u30d5\u6027\uff09\u3002\u5404\u6642\u523b\u306b\u304a\u3044\u3066\u8d77\u3053\u308b\u72b6\u614b\u5909\u5316\uff08\u9077\u79fb\u307e\u305f\u306f\u63a8\u79fb\uff09\u306b\u95a2\u3057\u3066\u3001\u30de\u30eb\u30b3\u30d5\u9023\u9396\u306f\u9077\u79fb\u78ba\u7387\u304c\u904e\u53bb\u306e\u72b6\u614b\u306b\u3088\u3089\u305a\u3001\u73fe\u5728\u306e\u72b6\u614b\u306e\u307f\u306b\u3088\u308b\u7cfb\u5217\u3067\u3042\u308b\u3002&#8221; &#8211; <a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%9E%E3%83%AB%E3%82%B3%E3%83%95%E9%80%A3%E9%8E%96\">\u30de\u30eb\u30b3\u30d5\u9023\u9396(wikipedia)<\/a><\/b>\n<\/p>\n<p>\n\u305d\u308c\u3067\u306f\uff0c\u30de\u30eb\u30b3\u30d5\u9023\u9396\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\uff0c\u307e\u305a\u306f\u5b9a\u7fa9\u3067\u7528\u3044\u3089\u308c\u3066\u3044\u308b<b>\u30de\u30eb\u30b3\u30d5\u6027<\/b>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3059\u308b\uff0e\n<\/p>\n<h3>\u30de\u30eb\u30b3\u30d5\u6027\u3068\u306f<\/h3>\n<p>\n\u30de\u30eb\u30b3\u30d5\u6027\u3068\u306f\uff0c<b>\u78ba\u7387\u8ad6\u306b\u304a\u3051\u308b\u78ba\u7387\u904e\u7a0b\u306e\u6301\u3064\u7279\u6027\u306e\u4e00\u7a2e<\/b>\u3067\uff0c<b><span style=\"color: #ff0000;\">\u305d\u306e\u904e\u7a0b\u306e\u5c06\u6765\u72b6\u614b\u306e\u6761\u4ef6\u4ed8\u304d\u78ba\u7387\u5206\u5e03\u304c\u73fe\u5728\u72b6\u614b\u306e\u307f\u306b\u4f9d\u5b58\u3057\uff0c\u904e\u53bb\u306e\u3044\u304b\u306a\u308b\u72b6\u614b\u306b\u3082\u4f9d\u5b58\u3057\u306a\u3044\u7279\u6027\u3092\u3082\u3064<\/span><\/b>\u3053\u3068\u3092\u3044\u3046\uff0e\u3064\u307e\u308a\uff0c<b>\u660e\u65e5\u306e\u5929\u6c17\u306f\u4eca\u65e5\u306e\u5929\u6c17\u306b\u306e\u307f\u5de6\u53f3\u3055\u308c\u308b(\u6628\u65e5\u3088\u308a\u524d\u306e\u5929\u6c17\u306f\u95a2\u4fc2\u306a\u3044)<\/b>\u3088\u3046\u306a\u3082\u306e\u3067\u3042\u308b\uff0e<br \/>\n\u4eca\u56de\u306e\u89e3\u6790\u5bfe\u8c61\u3067\u3042\u308b\u300c\u5358\u8a9e\u300d\u306b\u3064\u3044\u3066\u8003\u3048\u308b\u3068\uff0c<b><span style=\"color: #ff0000;\">\u3042\u308b\u5358\u8a9e\u304c\u51fa\u73fe\u3059\u308b\u78ba\u7387\u306f\uff0c\u76f4\u524d\u306e1\u5358\u8a9e\u306b\u306e\u307f\u5de6\u53f3\u3055\u308c\u308b<\/span><\/b>\u3053\u3068\u306b\u306a\u308b\uff0e<br \/>\n<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mieruca-ai.com\/ai\/wp-content\/uploads\/2018\/05\/fig02-1.png\" alt=\"\" width=\"1102\" height=\"433\" class=\"alignnone size-full wp-image-308\" \/><br \/>\n\u78ba\u7387\u904e\u7a0b\u3092X(t)\u3068\u3057\uff0c\u6642\u9593t>0\u304c\u30de\u30eb\u30b3\u30d5\u6027\u3092\u3082\u3064\u3068\u3059\u308b\u3068\uff0c\u6570\u5b66\u7684\u306b\u4ee5\u4e0b\u306e\u5f0f\u304c\u6210\u308a\u7acb\u3064\uff0e<br \/>\n$$Pr[X(t+h)=y|X(s)=x(s),\\forall s \\leq t]=Pr[X(t+h)=y|X(t)=x(t)],\\forall h>0$$\n<\/p>\n<p>\n\u30de\u30eb\u30b3\u30d5\u6027\u306e\u89e3\u8aac\u306f\u4ee5\u4e0a\u3067\u3042\u308b\uff0e\u6b21\u306b\uff0c\u540c\u69d8\u306b\u5b9a\u7fa9\u3067\u7528\u3044\u3089\u308c\u3066\u3044\u308b<b>\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3059\u308b\uff0e\n<\/p>\n<h3>\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3068\u306f<\/h3>\n<p>\n\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3068\u306f\uff0c<b><span style=\"color: #ff0000;\">\u30de\u30eb\u30b3\u30d5\u6027\u3092\u6301\u3064\u78ba\u7387\u904e\u7a0b<\/span><\/b>\u3092\u6307\u3059\uff0e\u3064\u307e\u308a\uff0c\u672a\u6765\u306e\u6319\u52d5\u304c\u73fe\u5728\u306e\u5024(\u72b6\u614b)\u306e\u307f\u3067\u6c7a\u5b9a\u3055\u308c\uff0c\u904e\u53bb\u306e\u6319\u52d5\u3068\u7121\u95a2\u4fc2\u306a\u6027\u8cea\u3092\u6301\u3064\u78ba\u7387\u904e\u7a0b\u306e\u3053\u3068\u3067\u3042\u308b\uff0e<br \/>\n\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u306b\u306f\u3044\u304f\u3064\u304b\u7a2e\u985e\u304c\u3042\u308b\u304c\uff0c\u4eca\u56de\u306f<b>\u5358\u7d14\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u3068<b>\u96e2\u6563\u6642\u9593\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u306b\u6ce8\u76ee\u3059\u308b\uff0e<b>\u5358\u7d14\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb<\/b>\u3092\u9078\u3093\u3060\u7406\u7531\u306f\u5f8c\u307b\u3069\u8aac\u660e\u3059\u308b\u304c\uff0cbi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3067\u306f\u3053\u306e\u5358\u7d14\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3092\u63a1\u7528\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3042\u308b\uff0e<b>\u96e2\u6563\u6642\u9593\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u3092\u9078\u3093\u3060\u7406\u7531\u306f\uff0c\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u306e\u5b9a\u7fa9\u3088\u308a<b>&#8220;\u3068\u308a\u3046\u308b\u72b6\u614b\u304c\u96e2\u6563\u7684\uff08\u6709\u9650\u307e\u305f\u306f\u53ef\u7b97\uff09\u306a\u3082\u306e\uff08\u96e2\u6563\u72b6\u614b\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\uff09\u3092\u3044\u3046\u3002\u307e\u305f\u7279\u306b\u3001\u6642\u9593\u304c\u96e2\u6563\u7684\u306a\u3082\u306e\uff08\u6642\u523b\u306f\u6dfb\u3048\u5b57\u3067\u8868\u3055\u308c\u308b\uff09\u3092\u6307\u3059\u3053\u3068\u304c\u591a\u3044\u3002&#8221;<\/b>\u304b\u3089\u3067\u3042\u308b\uff0e\n<\/p>\n<p>\n\u305d\u308c\u3067\u306f\uff0c\u5148\u306b<b>\u5358\u7d14\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3088\u3046\uff0e\n<\/p>\n<p><strong>\u5358\u7d14\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3068\u306f<\/strong><\/p>\n<p>\n\u5358\u7d14\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u306f\u5358\u306b<b>\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u3082\u3042\u308a\uff0c\u5b9a\u7fa9\u306f\u300e\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3068\u306f\u300f\u306e\u9805\u306b\u8a18\u8f09\u3057\u305f\u5185\u5bb9\u3068\u540c\u4e00\u3067\u3042\u308b\uff0e\u300e\u30de\u30eb\u30b3\u30d5\u6027\u3068\u306f\u300f\u306e\u9805\u3067\u7528\u3044\u305f\u5929\u6c17\u306e\u4f8b\u3067\u306f\u660e\u65e5\u306e\u5929\u6c17\u306f\u4eca\u65e5\u306e\u5929\u6c17\u306b\u306e\u307f\u4f9d\u5b58\u3057\u3066\u3044\u305f\u304c\uff0c\u3053\u308c\u3053\u305d\u307e\u3055\u3057\u304f\u5358\u7d14\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3092\u6307\u3057\u3066\u3044\u305f\u306e\u3067\u3042\u308b\uff0e<\/p>\n<p>\u3067\u306f\uff0c\u6b21\u306b<b>\u96e2\u6563\u6642\u9593\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3088\u3046\uff0e\n<\/p>\n<p><strong>\u96e2\u6563\u6642\u9593\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3068\u306f<\/strong><\/p>\n<p>\n<b>\u96e2\u6563\u6642\u9593<\/b>\u3068\u540d\u306e\u3064\u304f\u901a\u308a\uff0c\u6642\u9593\u304c\u96e2\u6563\u7684\u306b\u5909\u5316\u3059\u308b\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3067\u3042\u308b\uff0e\u901a\u5e38\u306f\uff0cT={1,2,3&#8230;}\u3092\u6642\u9593\u306e\u96c6\u5408\u3068\u3059\u308b\uff0e<\/p>\n<p>\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u306b\u3064\u3044\u3066\u7406\u89e3\u3057\u305f\u3068\u3053\u308d\u3067\uff0c\u672c\u984c\u306b\u623b\u3063\u3066\u30de\u30eb\u30b3\u30d5\u9023\u9396\u306e\u5b9a\u7fa9\u3092\u518d\u5ea6\u78ba\u8a8d\u3057\u3088\u3046\uff0e\n<\/p>\n<h3>\u30de\u30eb\u30b3\u30d5\u9023\u9396\u3068\u306f(\u518d\u78ba\u8a8d)<\/h3>\n<p>\n\u30de\u30eb\u30b3\u30d5\u9023\u9396\u306e\u5b9a\u7fa9\u3092\u518d\u78ba\u8a8d\u3057\u3088\u3046\uff0e<br \/>\n<b>&#8220;\u30de\u30eb\u30b3\u30d5\u9023\u9396\uff08\u30de\u30eb\u30b3\u30d5\u308c\u3093\u3055\u3001\u82f1: Markov chain\uff09\u3068\u306f\u3001\u78ba\u7387\u904e\u7a0b\u306e\u4e00\u7a2e\u3067\u3042\u308b\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u306e\u3046\u3061\u3001\u3068\u308a\u3046\u308b\u72b6\u614b\u304c\u96e2\u6563\u7684\uff08\u6709\u9650\u307e\u305f\u306f\u53ef\u7b97\uff09\u306a\u3082\u306e\uff08\u96e2\u6563\u72b6\u614b\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\uff09\u3092\u3044\u3046\u3002\u307e\u305f\u7279\u306b\u3001\u6642\u9593\u304c\u96e2\u6563\u7684\u306a\u3082\u306e\uff08\u6642\u523b\u306f\u6dfb\u3048\u5b57\u3067\u8868\u3055\u308c\u308b\uff09\u3092\u6307\u3059\u3053\u3068\u304c\u591a\u3044\uff08\u4ed6\u306b\u9023\u7d9a\u6642\u9593\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u3068\u3044\u3046\u3082\u306e\u3082\u3042\u308a\u3001\u3053\u308c\u306f\u6642\u523b\u304c\u9023\u7d9a\u3067\u3042\u308b\uff09\u3002\u30de\u30eb\u30b3\u30d5\u9023\u9396\u306f\u3001\u672a\u6765\u306e\u6319\u52d5\u304c\u73fe\u5728\u306e\u5024\u3060\u3051\u3067\u6c7a\u5b9a\u3055\u308c\u3001\u904e\u53bb\u306e\u6319\u52d5\u3068\u7121\u95a2\u4fc2\u3067\u3042\u308b\uff08\u30de\u30eb\u30b3\u30d5\u6027\uff09\u3002\u5404\u6642\u523b\u306b\u304a\u3044\u3066\u8d77\u3053\u308b\u72b6\u614b\u5909\u5316\uff08\u9077\u79fb\u307e\u305f\u306f\u63a8\u79fb\uff09\u306b\u95a2\u3057\u3066\u3001\u30de\u30eb\u30b3\u30d5\u9023\u9396\u306f\u9077\u79fb\u78ba\u7387\u304c\u904e\u53bb\u306e\u72b6\u614b\u306b\u3088\u3089\u305a\u3001\u73fe\u5728\u306e\u72b6\u614b\u306e\u307f\u306b\u3088\u308b\u7cfb\u5217\u3067\u3042\u308b\u3002&#8221; &#8211; <a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%9E%E3%83%AB%E3%82%B3%E3%83%95%E9%80%A3%E9%8E%96\">\u30de\u30eb\u30b3\u30d5\u9023\u9396(wikipedia)<\/a><\/b><br \/>\n\u3053\u3053\u307e\u3067\u306e<b>\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u3084<b>\u96e2\u6563\u6642\u523b\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u306e\u89e3\u8aac\u3092\u901a\u3057\u3066\uff0c\u6700\u521d\u306b\u8aad\u3093\u3060\u6642\u3088\u308a\u306f\u5b9a\u7fa9\u3092\u7406\u89e3\u3067\u304d\u308b\u3053\u3068\u3092\u671f\u5f85\u3057\u305f\u3044\uff0e<br \/>\n\u305d\u308c\u3067\u306f\uff0c\u6700\u5f8c\u306bbi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3088\u3046\uff0e\u3042\u3068\u5c11\u3057\u306a\u306e\u3067\uff0c\u9811\u5f35\u3063\u3066\u8aad\u307f\u9032\u3081\u3066\u307b\u3057\u3044\uff0e\n<\/p>\n<h2>bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3068\u306f<\/h2>\n<h3>bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306e\u6982\u8981<\/h3>\n<p>\nbi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3068\u306f<b>\u3042\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u5358\u8a9e\u306e\u751f\u8d77(\u51fa\u73fe)\u78ba\u7387\u306f<span style=\"color: #ff0000;\">\u76f4\u524d\u306e1\u5358\u8a9e\u306b\u306e\u307f\u4f9d\u5b58\u3059\u308b<\/span><\/b>\u3068\u4eee\u5b9a\u3057\u305f\u30e2\u30c7\u30eb\u3067\u3042\u308a\uff0c\u3053\u308c\u306f<b>\u5358\u7d14\u30de\u30eb\u30b3\u30d5\u904e\u7a0b<\/b>\u3092\u6307\u3059\uff0eN-gram\u306b\u62e1\u5f35\u3057\u305f\u5834\u5408\uff0c<b>\u3042\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u5358\u8a9e\u306e\u751f\u8d77(\u51fa\u73fe)\u78ba\u7387\u306f\uff0c\u76f4\u524d\u306eN-1\u5358\u8a9e\u306b\u306e\u307f\u4f9d\u5b58\u3059\u308b<\/b>\u3068\u5b9a\u7fa9\u3057\uff0cN-1\u91cd\u30de\u30eb\u30b3\u30d5\u904e\u7a0b\u306b\u5f93\u3046\u3053\u3068\u3092\u8868\u3059\uff0e\n<\/p>\n<h3>bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306e\u3067\u4f7f\u7528\u3055\u308c\u308b\u5f0f<\/h3>\n<p>\n\u300ebi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306e\u6982\u8981\u300f\u3067\u7d39\u4ecb\u3057\u305f\u300e<b>\u3042\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u5358\u8a9e\u306e\u751f\u8d77(\u51fa\u73fe)\u78ba\u7387\u306f\uff0c<span style=\"color: #ff0000;\">\u76f4\u524d\u306e1\u5358\u8a9e\u306b\u306e\u307f\u4f9d\u5b58\u3059\u308b<\/span><\/b>\u3068\u4eee\u5b9a\u3057\u305f\u30e2\u30c7\u30eb\u300f\u3092\u6570\u5b66\u7684\u306b\u8868\u3059\u3068\uff0c\u4ee5\u4e0b\u306e\u5b9a\u7fa9\u304c\u5f97\u3089\u308c\u308b\uff0e<br \/>\n\u3042\u308b\u5358\u8a9e\u5217W=w<sub>1<\/sub>,w<sub>2<\/sub>,&#8230;w<sub>n<\/sub>\u304c\u4e0e\u3048\u3089\u308c\u305f\u3068\u304d\uff0c\u5358\u8a9e\u5217\u3092W\uff0c\u30b3\u30fc\u30d1\u30b9\u5185\u306e\u5358\u8a9e\u306e\u751f\u8d77\u78ba\u7387\u3092C\u3068\u3059\u308b\u3068\uff0c\u540c\u6642\u751f\u8d77\u78ba\u7387P(W)\u306f\u4ee5\u4e0b\u306e\u5f0f\u3067\u5b9a\u7fa9\u3055\u308c\u308b\uff0e<br \/>\n$$P(W)=\\prod_{i=1}^{n} P(w_i|w_{i-1}) = \\prod_{i=1}^{n} \\left(\\frac{C(w_i,w_{i-1})}{C(w_{i-1})}\\right)$$<\/p>\n<p>\u4f8b\u3068\u3057\u3066\uff0c\u300c\u79c1\u306f\u30a4\u30c1\u30b4\u304c\u597d\u304d\u300d\u3068\u3044\u3046\u5358\u8a9e\u5217\u306e\u540c\u6642\u751f\u8d77\u78ba\u7387P\u3092\u8868\u3059\u5f0f\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\uff0e<\/p>\n<div class=\"show-srollbar\">$$P(\u79c1\u306f\u30a4\u30c1\u30b4\u304c\u597d\u304d)=P(\u79c1|*BOS*)P(\u306f|\u79c1)P(\u30a4\u30c1\u30b4|\u306f)P(\u304c|\u30a4\u30c1\u30b4)P(\u597d\u304d|\u304c)P(*EOS*|\u597d\u304d)$$<\/div>\n<p>\u3053\u3053\u3067<b>*BOS*\u306f\u6587\u7ae0\u306e\u958b\u59cb<\/b>\u3092\uff0c<b>*EOS*\u306f\u6587\u7ae0\u306e\u7d42\u308f\u308a<\/b>\u3092\u8868\u3059\uff0c\u6587\u7ae0\u306b\u306f\u51fa\u73fe\u3057\u306a\u3044\u5358\u8a9e\u3068\u3059\u308b\uff0e*BOS*\uff0c*EOS*\u306e\u751f\u8d77\u78ba\u7387\u306f1\u3067\u3042\u308b(\u6587\u7ae0\u306e\u958b\u59cb\u3068\u7d42\u4e86\u306f\u5fc5\u305a\u5b58\u5728\u3059\u308b\u305f\u3081)\uff0e\u307e\u305f\uff0c\u5404\u5358\u8a9e\u306e\u751f\u8d77\u78ba\u7387\u306f\uff0c\u30b3\u30fc\u30d1\u30b9\u5185\u3067\u306e<b>\u5404\u5358\u8a9e\u306e\u5ea6\u6570\/\u5168\u5358\u8a9e\u6570<\/b>\u3067\u8a08\u7b97\u3059\u308b\uff0e<br \/>\n<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mieruca-ai.com\/ai\/wp-content\/uploads\/2018\/05\/fig03-1.png\" alt=\"\" width=\"631\" height=\"292\" class=\"alignnone size-full wp-image-309\" \/>\n<\/p>\n<h3>bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306e\u8a08\u7b97\u4f8b(\u3068python\u3067\u306e\u5b9f\u88c5\u4f8b\u7d39\u4ecb)<\/h3>\n<p><strong>bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u8a08\u7b97\u4f8b<\/strong><br \/>\n\u4f8b\u3068\u3057\u3066\uff0c<b>\u300cOne fish two fish red fish blue fish\u300d<\/b>\u3068\u3044\u3046\u5358\u8a9e\u5217\u306e\u307f\u304c\u4e0e\u3048\u3089\u308c\u305f\u969b\u306e\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3092\u8003\u3048\u3088\u3046\uff0ebi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306f\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u4f5c\u6210\u3059\u308b\uff0e<br \/>\n\u2460\u5358\u8a9e\u5217\u306e\u5148\u982d\u3068\u672b\u5c3e\u306b*BOS*\uff0c*EOS*\u3092\u4ed8\u52a0\u3059\u308b\uff0e<br \/>\n\u2461\u305d\u308c\u305e\u308c\u306e\u5358\u8a9e\u306b\u3064\u3044\u3066\uff0c\u305d\u306e\u5358\u8a9e\u306e\u6b21\u306b\u51fa\u73fe\u3059\u308b\u5358\u8a9e\u3068\u306e\u30da\u30a2\u3092\u4f5c\u6210\u3059\u308b\uff0e<br \/>\n\u2462\u5404\u30da\u30a2\u306b\u3064\u3044\u3066\uff0c\u305d\u306e\u9078\u629e\u80a2\u304c\u9078\u3070\u308c\u308b\u78ba\u7387\u306b\u3064\u3044\u3066\u306e\u60c5\u5831\u3092\u4ed8\u4e0e\u3059\u308b\uff0e<br \/>\n<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mieruca-ai.com\/ai\/wp-content\/uploads\/2018\/05\/fig04-1.png\" alt=\"\" width=\"1084\" height=\"603\" class=\"alignnone size-full wp-image-305\" \/><\/p>\n<p>\u4e0a\u8a18\u306e\u4f8b\u304b\u3089\u4f5c\u6210\u3057\u305fbi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u56f3\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\uff0e<br \/>\n<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mieruca-ai.com\/ai\/wp-content\/uploads\/2018\/05\/fig05-1.png\" alt=\"\" width=\"560\" height=\"448\" class=\"alignnone size-full wp-image-306\" \/>\n<\/p>\n<p><strong>bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306epython\u3067\u306e\u5b9f\u88c5\u4f8b\u7d39\u4ecb<\/strong><\/p>\n<p>\nbi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3092python\u3067\u5b9f\u88c5\u3059\u308b\u5834\u5408\uff0c\u4ee5\u4e0b\u306e\u30b5\u30a4\u30c8\u304c\u5927\u5909\u308f\u304b\u308a\u3084\u3059\u3044\uff0e<br \/>\n[\u5143\u30b5\u30a4\u30c8]<br \/>\n<a href=\"https:\/\/hackernoon.com\/from-what-is-a-markov-model-to-here-is-how-markov-models-work-1ac5f4629b71\">From \u201cWhat is a Markov Model\u201d to \u201cHere is how Markov Models Work\u201d<\/a><br \/>\n[\u65e5\u672c\u8a9e\u8a33\u30b5\u30a4\u30c8]<br \/>\n<a href=\"https:\/\/postd.cc\/from-what-is-a-markov-model-to-here-is-how-markov-models-work-1\/\">\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb \uff5e\u6982\u8981\u304b\u3089\u539f\u7406\u307e\u3067\uff5e \uff08\u524d\u7de8\uff09<\/a><br \/>\n<a href=\"https:\/\/postd.cc\/hackernoon-comfrom-what-is-a-markov-model-to-here-is-how-markov-models-work-2\/\">\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb \uff5e\u6982\u8981\u304b\u3089\u539f\u7406\u307e\u3067\uff5e \uff08\u5f8c\u7de8\uff09<\/a><br \/>\n\u3053\u306e\u30b5\u30a4\u30c8\u3067\u306f<b>\u524d\u7de8\u3067\u300c\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3068\u306f\u4f55\u304b\u300d<\/b>\u3092\u89e3\u8aac\u3057\uff0c<b>\u5f8c\u7de8\u3067\u300cpython\u3067\u306e\u5b9f\u88c5\u4f8b\u300d<\/b>\u3092\u7d39\u4ecb\u3057\u3066\u3044\u308b\uff0e\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306b\u3064\u3044\u3066\u66f4\u306b\u77e5\u8b58\u3092\u6df1\u3081\u305f\u3044\u5834\u5408\u306f\uff0c\u53c2\u7167\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3059\u308b\uff0e\n<\/p>\n<h2>bi-gram(N-gram)\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306e\u5fdc\u7528\u4f8b(\u5f62\u614b\u7d20\u89e3\u6790\uff0c\u97f3\u58f0\u8a8d\u8b58)<\/h2>\n<p>\n\u4eca\u56de\u7d39\u4ecb\u3057\u305fbi-gram(N-gram)\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306f\uff0c\u69d8\u3005\u306a\u5206\u91ce\u3067\u5fdc\u7528\u3055\u308c\u3066\u3044\u308b\uff0e\u6700\u5f8c\u306b\uff0c\u3044\u304f\u3064\u304b\u306e\u5fdc\u7528\u4f8b\u3092\u7d39\u4ecb\u3057\u3088\u3046\uff0e\n<\/p>\n<h3>bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306e\u5fdc\u7528\u4f8b(\u5f62\u614b\u7d20\u89e3\u6790)<\/h3>\n<p>\n\u4ee3\u8868\u7684\u306a\u5f62\u614b\u7d20\u89e3\u6790\u5668\u3067\u3042\u308bMeCab\u3084JUMAN\u3067\u306f\uff0c<b>\u89e3\u6790\u30e2\u30c7\u30eb\u306bbi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb<\/b>\u3092\u63a1\u7528\u3057\u3066\u3044\u308b\uff0e\u3053\u308c\u306b\u3088\u308a\uff0c\u672a\u77e5\u8a9e\u306b\u5bfe\u3057\u3066\u54c1\u8a5e\u60c5\u5831\u3092\u63a8\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u7b49\uff0c\u3088\u308a\u67d4\u8edf\u306b\u89e3\u6790\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\uff0e\n<\/p>\n<h3>bi-gram\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306e\u5fdc\u7528\u4f8b(\u97f3\u58f0\u8a8d\u8b58)<\/h3>\n<p>\n\u97f3\u58f0\u8a8d\u8b58\u5206\u91ce\u3067\u306f<b>\u3042\u308b\u8a00\u8449\u3092\u8aad\u307f\u53d6\u3063\u305f\u969b\u306b\u300c\u6b21\u306b\u304f\u308b\u8a00\u8449\u306f\u4f55\u304b\u300d<\/b>\u3092\u5224\u65ad\u3059\u308b\u969b\u306b\uff0cbi-gram(N-gram)\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u304c\u3042\u308b\uff0e\u4e00\u822c\u306b\uff0c\u97f3\u58f0\u8a8d\u8b58\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u53d7\u3051\u53d6\u3063\u305f\u8a00\u8a9e\u30c7\u30fc\u30bf\u306b\u5bfe\u3057\u3066\u9069\u7528\u3055\u308c\u308b\uff0e\n<\/p>\n<h2>\u53c2\u8003<\/h2>\n<p>\u3010\u66f8\u7c4d\u3011<br \/>\n\u30fb\u91d1 \u660e\u54f2:\u30c6\u30ad\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u7d71\u8a08\u79d1\u5b66\u5165\u9580(2009)\uff0e<br \/>\n\u30fb\u5317 \u7814\u4e8c:\u8a00\u8a9e\u3068\u8a08\u7b97\u30fc\uff14\u3000\u78ba\u7387\u7684\u8a00\u8a9e\u30e2\u30c7\u30eb(1999)\uff0e<\/p>\n<p>\u3010Web\u30b5\u30a4\u30c8\u3011<br \/>\n\u30fb<a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%9E%E3%83%AB%E3%82%B3%E3%83%95%E6%80%A7\">\u30de\u30eb\u30b3\u30d5\u6027 &#8211; wikipedia<\/a><br \/>\n\u30fb<a href=\"https:\/\/postd.cc\/from-what-is-a-markov-model-to-here-is-how-markov-models-work-1\/\">\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb \uff5e\u6982\u8981\u304b\u3089\u539f\u7406\u307e\u3067\uff5e \uff08\u524d\u7de8\uff09<\/a><br \/>\n\u30fb<a href=\"https:\/\/postd.cc\/hackernoon-comfrom-what-is-a-markov-model-to-here-is-how-markov-models-work-2\/\">\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb \uff5e\u6982\u8981\u304b\u3089\u539f\u7406\u307e\u3067\uff5e \uff08\u5f8c\u7de8\uff09<\/a><br \/>\n\u30fb<a href=\"http:\/\/www.jnlp.org\/lab\/graduates\/okada\/nlp\/term\/ngramlm\">n-gram\u8a00\u8a9e\u30e2\u30c7\u30eb<\/a><br \/>\n\u30fb<a href=\"http:\/\/d.hatena.ne.jp\/jetbead\/20111031\/1320078059\">Ngram\u8a00\u8a9e\u30e2\u30c7\u30eb\u30e1\u30e2<\/a><br \/>\n\u30fb<a href=\"http:\/\/www.brh.co.jp\/seimeishi\/journal\/033\/resarch_21a.html\">1.\u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u3068\u306f<\/a><br \/>\n\u30fb<a href=\"https:\/\/www.geek.sc\/archives\/616\">\u30de\u30eb\u30b3\u30d5\u9023\u9396\u3068\u65e5\u672c\u8a9e\u5f62\u614b\u7d20\u89e3\u6790\u306b\u3088\u308b\u30ef\u30fc\u30c9\u30b5\u30e9\u30c0SEO<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57f7\u7b46\uff1a\u91d1\u5b50\u51b4 \u4eca\u56de\u306f\uff0c\u5f62\u614b\u7d20\u89e3\u6790\u5668\u306e1\u3064\u3067\u3042\u308bMeCab\u5185\u3067\u89e3\u6790\u30e2\u30c7\u30eb\u3068\u3057\u3066\u7528\u3044\u3089\u308c\u3066\u3044\u308bbi-gram \u30de\u30eb\u30b3\u30d5\u30e2\u30c7\u30eb\u306b\u3064\u3044\u3066\u89e3\u8aac\u3059\u308b\uff0e \u521d\u3081\u306b\uff0cbi-gram\u306e\u5143\u3068\u306a\u3063\u3066\u3044\u308b\uff0cN-gram\u3068\u3044\u3046\u624b\u6cd5\u3092\u89e3\u8aac\u3057\u3088\u3046\uff0e<\/p>\n","protected":false},"author":1,"featured_media":578,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,5],"tags":[],"_links":{"self":[{"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/posts\/304"}],"collection":[{"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/comments?post=304"}],"version-history":[{"count":12,"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/posts\/304\/revisions"}],"predecessor-version":[{"id":1062,"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/posts\/304\/revisions\/1062"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/media\/578"}],"wp:attachment":[{"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/media?parent=304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/categories?post=304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mieruca-ai.com\/ai\/wp-json\/wp\/v2\/tags?post=304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}