{"id":3770,"date":"2013-09-10T12:59:09","date_gmt":"2013-09-10T03:59:09","guid":{"rendered":"http:\/\/fujiitoshiki.com\/improvesociety\/?p=3770"},"modified":"2017-04-27T15:18:40","modified_gmt":"2017-04-27T06:18:40","slug":"post-3770","status":"publish","type":"post","link":"https:\/\/www.fujiitoshiki.com\/improvesociety\/?p=3770","title":{"rendered":"\u8d64\u6c60\u60c5\u5831\u91cf\u57fa\u6e96(AIC)\u3092\u78ba\u7387\u5206\u5e03\u95a2\u6570\u304b\u3089\u6700\u5c24\u6cd5\u3092\u7528\u3044\u3066\u8a08\u7b97\u3059\u308b"},"content":{"rendered":"<div class=\"theContentWrap-ccc\"><p>\u3000\u591a\u5909\u91cf\u89e3\u6790\u306e\u969b\u306e\u5909\u6570\u9078\u629e\u306e\u4e00\u3064\u306e\u6307\u6a19\u3068\u3057\u3066\u8d64\u6c60\u60c5\u5831\u91cf\u57fa\u6e96 (Akaike information criterion) \u304c\u3042\u308a\u307e\u3059\uff0e\u8a73\u7d30\u306f\u6210\u66f8\u3092\u53c2\u8003\u306b\u3057\u3066\u3044\u305f\u3060\u304d\u305f\u3044\u306e\u3067\u3059\u304c\uff0cN \u3092\u81ea\u7531\u30d1\u30e9\u30e1\u30fc\u30bf\u6570\u3068\u3059\u308b\u3068\u4e0b\u5f0f\u3067\u6c42\u307e\u308a\u307e\u3059\uff0e<\/p>\n<p><img src='https:\/\/s0.wp.com\/latex.php?latex=%5Cdisplaystyle+AIC+%3D+-2%28Maximum%5C+Log%5C+Likelihood%29%2B2N&#038;bg=T&#038;fg=000000&#038;s=0' alt='\\displaystyle AIC = -2(Maximum\\ Log\\ Likelihood)+2N' title='\\displaystyle AIC = -2(Maximum\\ Log\\ Likelihood)+2N' class='latex' \/><\/p>\n<p>\u3000\u30e2\u30c7\u30eb\u306e\u81ea\u7531\u30d1\u30e9\u30e1\u30fc\u30bf\u6570\u3068\u306f\uff0c\u60f3\u5b9a\u3057\u305f\u30e2\u30c7\u30eb\u306b\u542b\u307e\u308c\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5024\u304c\u52d5\u304f\u7a7a\u9593\u306e\u6b21\u5143\u306e\u3053\u3068\u3067\u3059\uff0eAIC \u306f\u60f3\u5b9a\u3057\u305f\u30e2\u30c7\u30eb\u3092\u6700\u5c24\u6cd5\u3067\u63a8\u5b9a\u3057\u305f\u6642\u306e\u8a55\u4fa1\u57fa\u6e96\u3067\u3042\u308a\uff0c\u5bfe\u6570\u5c24\u5ea6\u306e\u30d0\u30a4\u30a2\u30b9\u304c\u6f38\u8fd1\u7684\u306b\u30e2\u30c7\u30eb\u306b\u542b\u307e\u308c\u308b\u81ea\u7531\u30d1\u30e9\u30e1\u30fc\u30bf\u6570\u3068\u306a\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\uff0e<\/p>\n<p>\u3000\u6700\u5927\u5bfe\u6570\u5c24\u5ea6\u306f\u3069\u3046\u6c42\u3081\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff0e\u3053\u3053\u3067\u4e0b\u5f0f\u306e\u3088\u3046\u306b\u5bfe\u6570\u5c24\u5ea6\u95a2\u6570\u3092\u5b9a\u7fa9\u3057\u307e\u3059\uff0e<em>f<\/em>(x|<em>&theta;<\/em>) \u306f\u78ba\u7387\u5206\u5e03\u95a2\u6570\u3067\u3042\u308a\uff0c\u5206\u5e03\u306b\u3088\u3063\u3066\u5f62\u304c\u5909\u5316\u3057\u307e\u3059\uff0e<\/p>\n<p><img src='https:\/\/s0.wp.com\/latex.php?latex=%5Cdisplaystyle+l%28%5Ctheta%29+%3D+%5Csum_%7B%5Calpha%3D1%7D%5E%7Bn%7D%5Clog+f%28x_%7B%5Calpha%7D%7C%5Ctheta%29&#038;bg=T&#038;fg=000000&#038;s=0' alt='\\displaystyle l(\\theta) = \\sum_{\\alpha=1}^{n}\\log f(x_{\\alpha}|\\theta)' title='\\displaystyle l(\\theta) = \\sum_{\\alpha=1}^{n}\\log f(x_{\\alpha}|\\theta)' class='latex' \/><\/p>\n<\/p>\n<p>\u3000\u3053\u306e <em>l<\/em>(<em>&theta;<\/em>) \u3092\u6700\u5927\u5316\u3059\u308b <img src='https:\/\/s0.wp.com\/latex.php?latex=%5Chat%5Ctheta&#038;bg=T&#038;fg=000000&#038;s=0' alt='\\hat\\theta' title='\\hat\\theta' class='latex' \/> \u304c\u6700\u5c24\u63a8\u5b9a\u91cf\u3067\u3042\u308a\uff0c\u3053\u306e\u65b9\u6cd5\u3092\u6700\u5c24\u6cd5\u3068\u3044\u3044\u307e\u3059\uff0e<img src='https:\/\/s0.wp.com\/latex.php?latex=l%28%5Chat%5Ctheta%29+%3D+%5CSigma_%7B%5Calpha%3D1%7D%5E%7Bn%7D%5Clog+f%28x_%5Calpha+%7C%5Chat%5Ctheta%29&#038;bg=T&#038;fg=000000&#038;s=0' alt='l(\\hat\\theta) = \\Sigma_{\\alpha=1}^{n}\\log f(x_\\alpha |\\hat\\theta)' title='l(\\hat\\theta) = \\Sigma_{\\alpha=1}^{n}\\log f(x_\\alpha |\\hat\\theta)' class='latex' \/> \u3092\u6700\u5927\u5bfe\u6570\u5c24\u5ea6\u3068\u547c\u3073\u307e\u3059\uff0e<\/p>\n<p>\u3000\u5bfe\u6570\u5c24\u5ea6\u95a2\u6570 <em>l<\/em>(<em>&theta;<\/em>) \u304c\u5fae\u5206\u53ef\u80fd\u306a\u5834\u5408\uff0c\u6700\u5c24\u63a8\u5b9a\u91cf <img src='https:\/\/s0.wp.com\/latex.php?latex=%5Chat%5Ctheta&#038;bg=T&#038;fg=000000&#038;s=0' alt='\\hat\\theta' title='\\hat\\theta' class='latex' \/> \u306f\u5c24\u5ea6\u65b9\u7a0b\u5f0f\u3092\u5fae\u5206\u3057\u305f\u89e3\u304c 0 \u3068\u306a\u308b <em>&theta;<\/em> \u3092\u6c42\u3081\u308b\u3053\u3068\u3067\u6c42\u307e\u308a\u307e\u3059\uff0e<\/p>\n<p><img src='https:\/\/s0.wp.com\/latex.php?latex=%5Cdisplaystyle+%5Cfrac%7B%5Cpartial+l%28%5Ctheta%29%7D%7B%5Cpartial+%5Ctheta%7D+%3D+0&#038;bg=T&#038;fg=000000&#038;s=0' alt='\\displaystyle \\frac{\\partial l(\\theta)}{\\partial \\theta} = 0' title='\\displaystyle \\frac{\\partial l(\\theta)}{\\partial \\theta} = 0' class='latex' \/><\/p>\n<\/p>\n<p>\u53c2\u7167\uff1a<br \/>\n<a href=\"\/\/fujiitoshiki.com\/improvesociety\/?p=2969\" target=\"_blank\">\u78ba\u7387\u5206\u5e03\u3054\u3068\u306e\u78ba\u7387\u5bc6\u5ea6\u95a2\u6570\u304a\u3088\u3073\u671f\u5f85\u5024\u3068\u5206\u6563<\/a><\/p>\n<p><iframe src=\"\/\/rcm-fe.amazon-adsystem.com\/e\/cm?lt1=_blank&#038;bc1=000000&#038;IS2=1&#038;bg1=FFFFFF&#038;fc1=000000&#038;lc1=0000FF&#038;t=fujiitoshiki-22&#038;o=9&#038;p=8&#038;l=as4&#038;m=amazon&#038;f=ifr&#038;ref=ss_til&#038;asins=4254127820\" style=\"width:120px;height:240px;\" scrolling=\"no\" marginwidth=\"0\" marginheight=\"0\" frameborder=\"0\"><\/iframe><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u3000\u591a\u5909\u91cf\u89e3\u6790\u306e\u969b\u306e\u5909\u6570\u9078\u629e\u306e\u4e00\u3064\u306e\u6307\u6a19\u3068\u3057\u3066\u8d64\u6c60\u60c5\u5831\u91cf\u57fa\u6e96 (Akaike information criterion) \u304c\u3042\u308a\u307e\u3059\uff0e\u8a73\u7d30\u306f\u6210\u66f8\u3092\u53c2\u8003\u306b\u3057\u3066\u3044\u305f\u3060\u304d\u305f\u3044\u306e\u3067\u3059\u304c\uff0cN \u3092\u81ea\u7531\u30d1\u30e9\u30e1\u30fc\u30bf\u6570\u3068\u3059\u308b\u3068\u4e0b\u5f0f\u3067\u6c42\u307e\u308a &hellip; <a href=\"https:\/\/www.fujiitoshiki.com\/improvesociety\/?p=3770\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;\u8d64\u6c60\u60c5\u5831\u91cf\u57fa\u6e96(AIC)\u3092\u78ba\u7387\u5206\u5e03\u95a2\u6570\u304b\u3089\u6700\u5c24\u6cd5\u3092\u7528\u3044\u3066\u8a08\u7b97\u3059\u308b&#8221; \u306e<\/span>\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":{"_crdt_document":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-3770","post","type-post","status-publish","format-standard","hentry","category-statistics"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=\/wp\/v2\/posts\/3770","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3770"}],"version-history":[{"count":34,"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=\/wp\/v2\/posts\/3770\/revisions"}],"predecessor-version":[{"id":7733,"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=\/wp\/v2\/posts\/3770\/revisions\/7733"}],"wp:attachment":[{"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fujiitoshiki.com\/improvesociety\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}