{"height":"190","type":"rich","blog_title":"\u679c\u7269\u3092\u3044\u3063\u3071\u3044\u98df\u3079\u305f\u3044","url":"https://fullflu.hatenablog.com/entry/2020/06/07/ipw-variance","title":"IPW \u63a8\u5b9a\u91cf\u306e\u6f38\u8fd1\u5206\u6563\u306b\u3064\u3044\u3066\u306e\u88dc\u8db3","categories":["\u56e0\u679c\u63a8\u8ad6","\u7d71\u8a08\u5b66"],"description":"\u904e\u53bb\u306e\u8a18\u4e8b\u306e\u4e2d\u3067\u3001 IPW \u306e\u6f38\u8fd1\u5206\u6563\u306b\u3064\u3044\u3066\u3001\u4ee5\u4e0b\u306e\u4e3b\u5f35\u3092\u884c\u3063\u3066\u3044\u307e\u3057\u305f\u3002 \u3088\u3063\u3066\u3001 Potential outcome \u306e\u7b26\u53f7\u304c\u7b49\u3057\u3051\u308c\u3070\u53f3\u8fba\u304c0\u4ee5\u4e0a\u306b\u306a\u308a\u3001\u300cHorvitz-Thompson estimator \u3088\u308a Hajek estimator \u306e\u65b9\u304c\u6f38\u8fd1\u5206\u6563\u304c\u5c0f\u3055\u3044\u300d\u3068\u3044\u3046\u4e3b\u5f35\u304c\u6210\u7acb\u3059\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002 \u3057\u304b\u3057\u3001 @BluesNoNo \u3055\u3093\u3068\u3084\u308a\u3068\u308a\u3092\u3057\u3066\u3044\u304f\u4e2d\u3067\u3001 \u306e\u5024\u306b\u7740\u76ee\u3059\u308b\u3053\u3068\u3067\u5225\u306e\u6761\u4ef6\u3092\u8003\u3048\u3089\u308c\u308b\u53ef\u80fd\u6027\u3092\u6559\u3048\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002 \u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff0e\u81ea\u4fe1\u306f\u5168\u304f\u3042\u308a\u307e\u305b\u3093\u304c\uff0c\u5358\u7d14\u8a08\u7b97\u3067\uff0cw1=E[1/\u03c0], w2 = E[1/(1-\u03c0)]\u3068\u3057\u305f\u3089\uff0c(13)\u5f0f = w1 \u03b81\u2026","author_url":"https://blog.hatena.ne.jp/fullflu/","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","width":"100%","published":"2020-06-07 16:31:11","blog_url":"https://fullflu.hatenablog.com/","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffullflu.hatenablog.com%2Fentry%2F2020%2F06%2F07%2Fipw-variance\" title=\"IPW \u63a8\u5b9a\u91cf\u306e\u6f38\u8fd1\u5206\u6563\u306b\u3064\u3044\u3066\u306e\u88dc\u8db3 - \u679c\u7269\u3092\u3044\u3063\u3071\u3044\u98df\u3079\u305f\u3044\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"fullflu","image_url":"https://cdn.blog.st-hatena.com/images/theme/og-image-1500.png"}