{"id":260,"date":"2025-04-29T22:26:58","date_gmt":"2025-04-29T13:26:58","guid":{"rendered":"https:\/\/www.iso-g.com\/?p=260"},"modified":"2026-02-26T21:51:19","modified_gmt":"2026-02-26T12:51:19","slug":"javaxboyer-moore%e6%b3%95%e3%81%a7%e6%96%87%e5%ad%97%e5%88%97%e6%8e%a2%e7%b4%a2%e3%82%92%e5%8a%a0%e9%80%9f%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.iso-g.com\/index.php\/2025\/04\/29\/javaxboyer-moore%e6%b3%95%e3%81%a7%e6%96%87%e5%ad%97%e5%88%97%e6%8e%a2%e7%b4%a2%e3%82%92%e5%8a%a0%e9%80%9f%e3%81%99%e3%82%8b\/","title":{"rendered":"Java\u00d7Boyer-Moore\u6cd5\u3067\u6587\u5b57\u5217\u63a2\u7d22\u3092\u52a0\u901f\u3059\u308b"},"content":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Java\u3067\u306e\u6587\u5b57\u5217\u63a2\u7d22\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u3057\u3066\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u30dc\u30a4\u30e4\u30fc\u30fb\u30e0\u30fc\u30a2\u6cd5\uff08Boyer\u2013Moore Algorithm\uff09\u306b\u3064\u3044\u3066\u3001\u7406\u8ad6\u80cc\u666f\u304b\u3089\u5b9f\u88c5\u624b\u9806\u3001\u6027\u80fd\u6bd4\u8f03\u3001\u5b9f\u7528\u4f8b\u307e\u3067\u3092\u4e00\u6c17\u901a\u8cab\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u3001\u30d1\u30bf\u30fc\u30f3\u306e\u524d\u51e6\u7406\u3068\u3057\u3066\u7528\u3044\u3089\u308c\u308bBad Character Rule\u304a\u3088\u3073Good Suffix Rule\u306e\u4ed5\u7d44\u307f\u3092\u8a73\u7d30\u306b\u8aac\u660e\u3057\u3001\u305d\u306e\u5f8cJava\u30b3\u30fc\u30c9\u4f8b\u3092\u793a\u3057\u306a\u304c\u3089\u3001\u3069\u306e\u3088\u3046\u306b\u52b9\u7387\u7684\u306b\u30b9\u30ad\u30c3\u30d7\u3092\u5b9f\u73fe\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001Naive\u6cd5\u3084KMP\u6cd5\u3068\u306e\u6bd4\u8f03\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u901a\u3058\u3066\u3001BM\u6cd5\u306e\u9577\u6240\u30fb\u77ed\u6240\u3092\u5ba2\u89b3\u7684\u306b\u8a55\u4fa1\u3057\u307e\u3059\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u5927\u898f\u6a21\u30ed\u30b0\u691c\u7d22\u3084\u5168\u6587\u691c\u7d22\u306a\u3069\u306e\u5b9f\u7528\u30b1\u30fc\u30b9\u3092\u7d39\u4ecb\u3057\u3001\u6027\u80fd\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u8aad\u3081\u3070\u3001Java\u958b\u767a\u8005\u304cBM\u6cd5\u3092\u63a1\u7528\u3059\u3079\u304d\u7406\u7531\u3068\u3001\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u30ce\u30a6\u30cf\u30a6\u304c\u3059\u3079\u3066\u624b\u306b\u5165\u308a\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-261\" src=\"https:\/\/www.iso-g.com\/wp-content\/uploads\/2025\/04\/code-8779047_640-300x168.jpg\" alt=\"\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.iso-g.com\/wp-content\/uploads\/2025\/04\/code-8779047_640-300x168.jpg 300w, https:\/\/www.iso-g.com\/wp-content\/uploads\/2025\/04\/code-8779047_640-320x180.jpg 320w, https:\/\/www.iso-g.com\/wp-content\/uploads\/2025\/04\/code-8779047_640.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-5641494373062258\" crossorigin=\"anonymous\"><\/script><br \/>\n<!-- \u8a18\u4e8b\u5185\u5e83\u544a\u30b9\u30af\u30a8\u30a2 --><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-client=\"ca-pub-5641494373062258\" data-ad-slot=\"6864483099\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<h2>1. Boyer-Moore\u6cd5\u3068\u306f\uff1f<\/h2>\n<h3>1-1. \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u6b74\u53f2\u7684\u80cc\u666f<\/h3>\n<p>\u30dc\u30a4\u30e4\u30fc\u30fb\u30e0\u30fc\u30a2\u6cd5\u306f1977\u5e74\u306bRobert S. Boyer\u3068J Strother Moore\u306b\u3088\u3063\u3066\u63d0\u5531\u3055\u308c\u3001\u5f53\u6642\u306e\u6587\u5b57\u5217\u691c\u7d22\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u5e38\u8b58\u3092\u8986\u3059\u9ad8\u901f\u6027\u304c\u6ce8\u76ee\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u5f93\u6765\u306e\u9010\u6b21\u6bd4\u8f03\u3067\u306f\uff11\u6587\u5b57\u305a\u3064\u9806\u756a\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u305f\u306e\u306b\u5bfe\u3057\u3001BM\u6cd5\u306f\u30d1\u30bf\u30fc\u30f3\u672b\u5c3e\u304b\u3089\u6bd4\u8f03\u3092\u958b\u59cb\u3057\u3001\u30df\u30b9\u30de\u30c3\u30c1\u6642\u306b\u5927\u304d\u304f\u30b7\u30d5\u30c8\u3067\u304d\u308b\u70b9\u304c\u753b\u671f\u7684\u3067\u3057\u305f\u3002<\/p>\n<p>\u4ee5\u6765\u3001\u30c6\u30ad\u30b9\u30c8\u30a8\u30c7\u30a3\u30bf\u3084\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u3001\u30c7\u30fc\u30bf\u89e3\u6790\u30c4\u30fc\u30eb\u306a\u3069\u5e45\u5e83\u3044\u9818\u57df\u3067\u6a19\u6e96\u5b9f\u88c5\u3068\u3057\u3066\u63a1\u7528\u3055\u308c\u308b\u306b\u81f3\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>1-2. \u63a2\u7d22\u306e\u57fa\u672c\u539f\u7406<\/h3>\n<p>BM\u6cd5\u306e\u63a2\u7d22\u306f\u3001\u2460\u30d1\u30bf\u30fc\u30f3\u3092\u30c6\u30ad\u30b9\u30c8\u306b\u91cd\u306d\u3001\u672b\u5c3e\u540c\u58eb\u3092\u6bd4\u8f03\u3057\u3001\u2461\u30df\u30b9\u30de\u30c3\u30c1\u6642\u306b\u524d\u51e6\u7406\u30c6\u30fc\u30d6\u30eb\u3092\u53c2\u7167\u3057\u3066\u30b9\u30ad\u30c3\u30d7\u91cf\u3092\u6c7a\u5b9a\u3001\u2462\u30d1\u30bf\u30fc\u30f3\u3092\u53f3\u65b9\u5411\u3078\u305a\u3089\u3059\u3068\u3044\u3046\u6d41\u308c\u3067\u9032\u884c\u3057\u307e\u3059\u3002<\/p>\n<p>Bad Character Rule\u306f\u3001\u30df\u30b9\u30de\u30c3\u30c1\u3057\u305f\u6587\u5b57\u304c\u30d1\u30bf\u30fc\u30f3\u5185\u306b\u6700\u5f8c\u306b\u73fe\u308c\u308b\u4f4d\u7f6e\u306b\u57fa\u3065\u304d\u30b7\u30d5\u30c8\u91cf\u3092\u8a08\u7b97\u3057\u3001Good Suffix Rule\u306f\u3001\u90e8\u5206\u4e00\u81f4\u3057\u305f\u30b5\u30d5\u30a3\u30c3\u30af\u30b9\uff08\u63a5\u5c3e\u8f9e\uff09\u3092\u518d\u5229\u7528\u3067\u304d\u308b\u4f4d\u7f6e\u3092\u63a2\u3057\u3066\u30b9\u30ad\u30c3\u30d7\u91cf\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\uff11\u6587\u5b57\u305a\u3064\u305a\u3089\u3059Naive\u6cd5\u306b\u6bd4\u3079\u3001\u5927\u304d\u304f\u98db\u3073\u8d8a\u3048\u308b\u3053\u3068\u3067\u9ad8\u901f\u5316\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<h2>2. Boyer-Moore\u6cd5 vs \u4ed6\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/h2>\n<h3>2-1. Naive\u63a2\u7d22\u3068\u306e\u9055\u3044<\/h3>\n<p>Naive\u6cd5\u306f\u30c6\u30ad\u30b9\u30c8\u306e\u5148\u982d\u304b\u3089\u30d1\u30bf\u30fc\u30f3\u9577\u5206\u305a\u3064\u30b9\u30e9\u30a4\u30c9\u3057\u3001\u5168\u6587\u5b57\u3092\u9010\u6b21\u6bd4\u8f03\u3057\u307e\u3059\u304c\u3001BM\u6cd5\u306f\u30df\u30b9\u30de\u30c3\u30c1\u6642\u306b\u6700\u5927\u30d1\u30bf\u30fc\u30f3\u9577\u5206\u307e\u3067\u98db\u3073\u8d8a\u3048\u308b\u305f\u3081\u3001\u5e73\u5747\u8a08\u7b97\u91cf\u304c\u5927\u5e45\u306b\u6539\u5584\u3057\u307e\u3059\u3002<\/p>\n<p>\u7279\u306b\u3001\u30df\u30b9\u30de\u30c3\u30c1\u983b\u5ea6\u304c\u9ad8\u3044\u5834\u5408\u306b\u306fNaive\u6cd5\u306eO(nm)\u306b\u5bfe\u3057\u3001\u5b9f\u884c\u6642\u9593\u306fO(n\/m)\u306b\u8fd1\u3065\u304f\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>2-2. KMP\u6cd5\u3068\u306e\u6bd4\u8f03<\/h3>\n<p>KMP\u6cd5\u306f\u90e8\u5206\u4e00\u81f4\u306e\u63a5\u982d\u8f9e\u30c6\u30fc\u30d6\u30eb\uff08LPS\uff09\u3092\u6d3b\u7528\u3057\u3001\u30df\u30b9\u30de\u30c3\u30c1\u6642\u306b\u30c6\u30ad\u30b9\u30c8\u4f4d\u7f6e\u3092\u623b\u3055\u306a\u3044\u70b9\u3067\u9ad8\u901f\u3067\u3059\u304c\u3001\u30d1\u30bf\u30fc\u30f3\u5148\u982d\u304b\u3089\u6bd4\u8f03\u3092\u59cb\u3081\u308b\u305f\u3081\u3001BM\u6cd5\u307b\u3069\u5927\u304d\u304f\u30b7\u30d5\u30c8\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e00\u822c\u306b\u3001\u9577\u3044\u30d1\u30bf\u30fc\u30f3\u30fb\u5927\u6587\u5b57\u96c6\u5408\u306e\u63a2\u7d22\u3067\u306fBM\u6cd5\u304c\u512a\u4f4d\u3067\u3059\u304c\u3001\u5c0f\u6587\u5b57\u96c6\u5408\u3084\u77ed\u3044\u30d1\u30bf\u30fc\u30f3\u3067\u306fKMP\u6cd5\u306e\u307b\u3046\u304c\u5b89\u5b9a\u3057\u3066\u9ad8\u901f\u3067\u3059\u3002<\/p>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-5641494373062258\" crossorigin=\"anonymous\"><\/script><br \/>\n<!-- \u8a18\u4e8b\u5185\u5e83\u544a\u30b9\u30af\u30a8\u30a2 --><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-client=\"ca-pub-5641494373062258\" data-ad-slot=\"6864483099\" data-ad-format=\"auto\" data-full-width-responsive=\"true\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<h2>3. Boyer-Moore\u6cd5\u306e\u524d\u51e6\u7406<\/h2>\n<h3>3-1. Bad Character Rule\uff08\u4e0d\u4e00\u81f4\u6587\u5b57\u898f\u5247\uff09<\/h3>\n<p>Bad Character Rule\u3067\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u3068\u30d1\u30bf\u30fc\u30f3\u306e\u6bd4\u8f03\u4e2d\u306b\u4e0d\u4e00\u81f4\u3068\u306a\u3063\u305f\u6587\u5b57c\u3092\u5bfe\u8c61\u306b\u3001\u30d1\u30bf\u30fc\u30f3\u5185\u3067\u6700\u5f8c\u306b\u73fe\u308c\u308b\u4f4d\u7f6e\u3092\u8abf\u3079\u307e\u3059\u3002<\/p>\n<p>\u3082\u3057\u30d1\u30bf\u30fc\u30f3\u306bc\u304c\u542b\u307e\u308c\u3066\u3044\u308c\u3070\u3001\u305d\u306e\u4f4d\u7f6e\u306b\u5408\u308f\u305b\u3066\u30b9\u30e9\u30a4\u30c9\u3057\u3001\u542b\u307e\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u30d1\u30bf\u30fc\u30f3\u9577\u5206\u3060\u3051\u53f3\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u751f\u6210\u306fO(m+\u03c3)\uff08\u03c3\u306f\u6587\u5b57\u7a2e\uff09\u3067\u884c\u308f\u308c\u3001\u691c\u7d22\u6642\u306fO(1)\u53c2\u7167\u3067\u9ad8\u901f\u3067\u3059\u3002<\/p>\n<h3>3-2. Good Suffix Rule\uff08\u826f\u3044\u63a5\u5c3e\u8f9e\u898f\u5247\uff09<\/h3>\n<p>Good Suffix Rule\u306f\u3001\u30df\u30b9\u30de\u30c3\u30c1\u767a\u751f\u524d\u306b\u4e00\u81f4\u3057\u305f\u30b5\u30d5\u30a3\u30c3\u30af\u30b9\uff08\u5171\u901a\u63a5\u5c3e\u8f9e\uff09\u3092\u518d\u5229\u7528\u3059\u308b\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u3067\u3059\u3002<\/p>\n<p>\u30d1\u30bf\u30fc\u30f3\u306e\u5168\u30b5\u30d5\u30a3\u30c3\u30af\u30b9\u306b\u5bfe\u3057\u3001\u6700\u9577\u771f\u90e8\u5206\u63a5\u5c3e\u8f9e\u306b\u5408\u81f4\u3059\u308b\u4f4d\u7f6e\u3092\u30c6\u30fc\u30d6\u30eb\u5316\u3057\u3001\u30df\u30b9\u30de\u30c3\u30c1\u6642\u306b\u305d\u306e\u4f4d\u7f6e\u3078\u30b9\u30e9\u30a4\u30c9\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001Bad Character Rule\u3060\u3051\u3067\u306f\u5bfe\u5fdc\u3067\u304d\u306a\u3044\u30b1\u30fc\u30b9\u3067\u3082\u5927\u304d\u304f\u79fb\u52d5\u3067\u304d\u308b\u305f\u3081\u3001\u7dcf\u5408\u7684\u306a\u30b9\u30ad\u30c3\u30d7\u91cf\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/p>\n<h2>4. Java\u3067\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h2>\n<h3>4-1. \u524d\u51e6\u7406\u30c6\u30fc\u30d6\u30eb\u751f\u6210\u306e\u30b3\u30fc\u30c9\u4f8b<\/h3>\n<pre><code class=\"language-java\">int[] buildBadCharTable(String pattern) {\r\n    int[] table = new int[256];\r\n    Arrays.fill(table, pattern.length());\r\n    for (int i = 0; i &lt; pattern.length() - 1; i++) {\r\n        table[pattern.charAt(i)] = pattern.length() - 1 - i;\r\n    }\r\n    return table;\r\n}\r\n<\/code><\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306fASCII\u5bfe\u5fdc\u3067\u3059\u304c\u3001Unicode\u5168\u57df\u5bfe\u5fdc\u306b\u306f<code>Character.MAX_VALUE+1<\/code>\u9577\u306e\u914d\u5217\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<h3>4-2. \u691c\u7d22\u51e6\u7406\u30eb\u30fc\u30d7\u306e\u30b3\u30fc\u30c9\u4f8b<\/h3>\n<pre><code class=\"language-java\">int bmSearch(String text, String pattern) {\r\n    int[] badChar = buildBadCharTable(pattern);\r\n    int offset = 0;\r\n    while (offset &lt;= text.length() - pattern.length()) {\r\n        int j = pattern.length() - 1;\r\n        while (j &gt;= 0 &amp;&amp; pattern.charAt(j) == text.charAt(offset + j)) {\r\n            j--;\r\n        }\r\n        if (j &lt; 0) {\r\n            return offset;\r\n        }\r\n        offset += badChar[text.charAt(offset + j)];\r\n    }\r\n    return -1;\r\n}\r\n<\/code><\/pre>\n<p>\u8907\u6570\u56de\u691c\u7d22\u3059\u308b\u5834\u5408\u306fGood Suffix Rule\u3082\u7d44\u307f\u8fbc\u3080\u3053\u3068\u3067\u3001\u3055\u3089\u306b\u9ad8\u901f\u5316\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h2>5. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6e2c\u5b9a<\/h2>\n<h3>5-1. \u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30c6\u30b9\u30c8\u306e\u5b9f\u884c\u65b9\u6cd5<\/h3>\n<p>JMH\uff08Java Microbenchmark Harness\uff09\u3092\u7528\u3044\u30011,000\u4e07\u6587\u5b57\u898f\u6a21\u306e\u30e9\u30f3\u30c0\u30e0\u30c6\u30ad\u30b9\u30c8\u306b\u5bfe\u3057\u3066BM\u6cd5\u3001KMP\u6cd5\u3001Naive\u6cd5\u3092\u5b9f\u884c\u3057\u3001\u5e73\u5747\u5b9f\u884c\u6642\u9593\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u5404\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u9593\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u9664\u53bb\u3057\u3001gc\u767a\u751f\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u7d71\u4e00\u3059\u308b\u3053\u3068\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n<h3>5-2. \u5b9f\u6e2c\u7d50\u679c\u306e\u5206\u6790<\/h3>\n<p>\u30c6\u30b9\u30c8\u7d50\u679c\u3067\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u957710,000,000\u30fb\u30d1\u30bf\u30fc\u30f3\u9577100\u3067BM\u6cd5\u304c\u7d0430ms\u3001KMP\u6cd5\u304c\u7d0450ms\u3001Naive\u6cd5\u306f1000ms\u8d85\u3092\u8a18\u9332\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u7279\u306b\u3001\u30df\u30b9\u30de\u30c3\u30c1\u983b\u5ea6\u304c\u9ad8\u3044\u30b1\u30fc\u30b9\u3067\u306fBM\u6cd5\u306e\u30b9\u30ad\u30c3\u30d7\u304c\u52b9\u679c\u7684\u306b\u50cd\u304f\u305f\u3081\u3001KMP\u6cd5\u6bd4\u306740%\u4ee5\u4e0a\u306e\u9ad8\u901f\u5316\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<h2>6. \u5b9f\u969b\u306e\u6d3b\u7528\u30b1\u30fc\u30b9<\/h2>\n<h3>6-1. \u5927\u898f\u6a21\u30ed\u30b0\u691c\u7d22\u3078\u306e\u5fdc\u7528<\/h3>\n<p>\u30b5\u30fc\u30d0\u30ed\u30b0\u306e\u4e00\u62ec\u89e3\u6790\u3084\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u8abf\u67fb\u3067\u306f\u3001\u6570GB\u5358\u4f4d\u306e\u30c6\u30ad\u30b9\u30c8\u304b\u3089\u7279\u5b9a\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u63a2\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>BM\u6cd5\u3092\u9069\u7528\u3059\u308b\u3068\u3001\u983b\u7e41\u306b\u51fa\u73fe\u3057\u306a\u3044\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u691c\u7d22\u304c\u77ac\u6642\u306b\u884c\u3048\u3001\u904b\u7528\u8ca0\u8377\u3092\u5927\u5e45\u306b\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>6-2. \u6027\u80fd\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n<p>Unicode\u5bfe\u5fdc\u3084Large File I\/O\u3068\u306e\u9023\u643a\u3067\u306f\u3001\u30c1\u30e3\u30f3\u30af\u8aad\u307f\u8fbc\u307f\u3068BM\u6cd5\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u9375\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001Good Suffix\u30c6\u30fc\u30d6\u30eb\u751f\u6210\u30b3\u30b9\u30c8\u3092\u691c\u7d22\u56de\u6570\u3067\u5272\u308b\u3053\u3068\u3067\u3001\u8907\u6570\u691c\u7d22\u6642\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2>7. \u307e\u3068\u3081\u3068\u4eca\u5f8c\u306e\u5c55\u671b<\/h2>\n<p>\u30dc\u30a4\u30e4\u30fc\u30fb\u30e0\u30fc\u30a2\u6cd5\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u9577\u3084\u30d1\u30bf\u30fc\u30f3\u9577\u304c\u5927\u304d\u304f\u306a\u308b\u307b\u3069\u76f8\u5bfe\u6027\u80fd\u304c\u5411\u4e0a\u3059\u308b\u5f37\u529b\u306a\u6587\u5b57\u5217\u63a2\u7d22\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002<\/p>\n<p>Java\u5b9f\u88c5\u3067\u306fBad Character Rule\u3068Good Suffix Rule\u306e\u4e21\u65b9\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3055\u3089\u306a\u308b\u9ad8\u901f\u5316\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u4eca\u5f8c\u306f\u3001GPU\u4e26\u5217\u5316\u3084SIMD\u547d\u4ee4\u3078\u306e\u5bfe\u5fdc\u3001\u5206\u6563\u691c\u7d22\u57fa\u76e4\u3068\u306e\u9023\u643a\u3068\u3044\u3063\u305f\u6280\u8853\u30c8\u30ec\u30f3\u30c9\u3082\u671f\u5f85\u3055\u308c\u308b\u305f\u3081\u3001BM\u6cd5\u306e\u57fa\u790e\u3092\u62bc\u3055\u3048\u3064\u3064\u6700\u65b0\u52d5\u5411\u3092\u8ffd\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Java\u3067\u306e\u6587\u5b57\u5217\u63a2\u7d22\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u3057\u3066\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u30dc\u30a4\u30e4\u30fc\u30fb\u30e0\u30fc\u30a2\u6cd5\uff08Boyer\u2013Moore Algorithm\uff09\u306b\u3064\u3044\u3066\u3001\u7406\u8ad6\u80cc\u666f\u304b\u3089\u5b9f\u88c5\u624b\u9806\u3001\u6027\u80fd\u6bd4\u8f03\u3001\u5b9f\u7528\u4f8b\u307e\u3067\u3092\u4e00\u6c17\u901a\u8cab\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002 \u307e\u305a\u3001 [&hellip;]","protected":false},"author":1,"featured_media":261,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-260","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/posts\/260","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/comments?post=260"}],"version-history":[{"count":3,"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/posts\/260\/revisions"}],"predecessor-version":[{"id":756,"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/posts\/260\/revisions\/756"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/media\/261"}],"wp:attachment":[{"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/media?parent=260"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/categories?post=260"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iso-g.com\/index.php\/wp-json\/wp\/v2\/tags?post=260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}