{"author_url":"https://blog.hatena.ne.jp/naoya/","published":"2008-05-11 20:45:01","width":"100%","provider_url":"https://hatena.blog","author_name":"naoya","blog_title":"naoya\u306e\u306f\u3066\u306a\u30c0\u30a4\u30a2\u30ea\u30fc","categories":[],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnaoya-2.hatenadiary.org%2Fentry%2F20080511%2F1210506301\" title=\" MapReduce - naoya\u306e\u306f\u3066\u306a\u30c0\u30a4\u30a2\u30ea\u30fc\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","image_url":null,"type":"rich","blog_url":"https://naoya-2.hatenadiary.org/","height":"190","description":"\"MapReduce\" \u306f Google \u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u4e26\u5217\u8a08\u7b97\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u3001\u5927\u898f\u6a21\u306a\u5165\u529b\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u30d0\u30c3\u30c1\u51e6\u7406\u3092\u60f3\u5b9a\u3057\u3066\u4f5c\u3089\u308c\u305f\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002MapReduce \u306e\u9762\u767d\u3044\u3068\u3053\u308d\u306f\u3001map() \u3068 reduce() \u3068\u3044\u3046\u4e8c\u3064\u306e\u95a2\u6570\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u5b9a\u7fa9\u3059\u308b\u3060\u3051\u3067\u3001\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u69d8\u3005\u306a\u8a08\u7b97\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u70b9\u3067\u3059\u3002 MapReduce \u306e\u8a08\u7b97\u30e2\u30c7\u30eb map() \u306b\u306f\u305d\u306e\u8a08\u7b97\u554f\u984c\u306e\u30c7\u30fc\u30bf\u3068\u3057\u3066\u306e key-value \u30da\u30a2\u304c\u6b21\u3005\u306b\u6e21\u3063\u3066\u304d\u307e\u3059\u3002map() \u3067\u306f key-value \u5024\u306e\u30da\u30a2\u3092\u7570\u306a\u308b\u8907\u6570\u306e key-value \u2026","url":"https://naoya-2.hatenadiary.org/entry/20080511/1210506301","title":" MapReduce","provider_name":"Hatena Blog"}