{"id":3462,"date":"2021-06-12T16:03:48","date_gmt":"2021-06-12T08:03:48","guid":{"rendered":"https:\/\/wyxxt.org.cn\/?p=3462"},"modified":"2023-12-04T15:16:49","modified_gmt":"2023-12-04T07:16:49","slug":"%e6%8e%a8%e8%8d%90%e7%b3%bb%e7%bb%9f%e6%9e%b6%e6%9e%84","status":"publish","type":"post","link":"https:\/\/wyxxt.org.cn\/?p=3462","title":{"rendered":"\u63a8\u8350\u7cfb\u7edf\u67b6\u6784"},"content":{"rendered":"<h1>\u539f\u7406<\/h1>\n<p>\u6839\u636e\u7528\u6237\u753b\u50cf\u63a8\u8350\u7269\u54c1<\/p>\n<h2>\u7528\u6237\u753b\u50cf<\/h2>\n<p>\u4e00\u5806\u591a\u7ef4\u6570\u636e\u6765\u523b\u753b\u4e00\u4e2a\u4eba\uff08\u5e74\u9f84\u3001\u804c\u4e1a\u3001\u6536\u5165\u3001\u884c\u4e3a\u3002\u3002\u3002\uff09<\/p>\n<h3>\u79bb\u7ebf\u753b\u50cf\u6570\u636e<\/h3>\n<p>\u53d8\u52a8\u9891\u7387\u4e0d\u9ad8\uff0c\u5982\u5e74\u9f84\u3001\u804c\u4e1a\u3001\u6536\u5165<\/p>\n<h3>\u5b9e\u65f6\u753b\u50cf\u6570\u636e<\/h3>\n<p>\u53d8\u52a8\u9891\u7387\u6bd4\u8f83\u9ad8\uff0c\u5982\u884c\u4e3a<\/p>\n<h3>\u6570\u636e\u7f3a\u5931\u95ee\u9898<\/h3>\n<p>001 zhangsan 22 IT 15000<br \/>\n002 lisi \u00a0 \u00a0 \u00a0 \u00a0 \u00a021 IT 16000<br \/>\n003 wangwu \u00a022 IT<br \/>\n004 wangermazi 40 \u533b\u751f 35000<\/p>\n<p>\u4ee5\u4e0a003\u53f7\u7f3a\u5c11\u6536\u5165\u6570\u636e\uff0c\u9700\u4f7f\u7528\u6570\u636e\u4e0d\u5168\u65b9\u6cd5<\/p>\n<pre><code>1\u3001KMeans\u7b97\u6cd5\u3001DBScan\u7b97\u6cd5 \u57fa\u4e8e\u7ed3\u679c\u53d6\u4ea4\u96c6\n2\u3001\u7ebf\u6027\u56de\u5f52\u6a21\u578b\n<\/code><\/pre>\n<p>001 zhangsan 22 IT 15000<br \/>\n002 lisi \u00a0 \u00a0 \u00a0 \u00a0 \u00a021 IT 16000<br \/>\n003 wangwu \u00a022 \u00a0 \u00a0 18000<br \/>\n004 wangermazi 40 \u533b\u751f 35000<\/p>\n<p>\u4ee5\u4e0a003\u53f7\u7f3a\u5c11\u804c\u4e1a\u6570\u636e\uff0c\u9700\u4f7f\u7528\u6570\u636e\u4e0d\u5168\u65b9\u6cd5<\/p>\n<pre><code>LR RF \u5206\u7c7b\u6a21\u578b\n<\/code><\/pre>\n<h3>\u7528\u6237\u753b\u50cf\u603b\u7ed3<\/h3>\n<pre><code>1\u3001\u9488\u5bf9\u79bb\u7ebf\u6570\u636e\u548c\u5b9e\u65f6\u6570\u636e\u5236\u5b9a\u4e0d\u540c\u7684\u66f4\u65b0\u7b56\u7565\n2\u3001\u9488\u5bf9\u6570\u636e\u7f3a\u5931\u95ee\u9898\uff0c\u4f7f\u7528\u8865\u5168\u6570\u636e\u65b9\u6cd5\n<\/code><\/pre>\n<h2>\u7269\u54c1\u753b\u50cf<\/h2>\n<pre><code>\u4ee5\u6587\u7ae0\u4e3a\u4f8b\uff0c\u63d0\u53d6\u5173\u952e\u8bcd\u3001\u4e3b\u9898\u3001\u4f5c\u8005\u3001\u53d1\u5e03\u65f6\u95f4\u3001\u6d4f\u89c8\u91cf\u3002\u3002\u3002\uff0c\u5e76\u9009\u62e9\u5408\u9002\u7684\u66f4\u65b0\u7b56\u7565\n<\/code><\/pre>\n<h2>\u539f\u7406\u603b\u7ed3<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_0cb8b3b7e4d9893df1f73c75e4953a1c.jpg\" alt=\"\" \/><\/p>\n<pre><code>\u4e86\u89e3\u7528\u6237\u3001\u4e86\u89e3\u7269\u54c1\uff0c\u600e\u4e48\u57fa\u4e8e\u7528\u6237\u6765\u63a8\u8350\u7269\u54c1\u5462\uff1f\u63a8\u8350\u6d41\u7a0b\u662f\u4ec0\u4e48\u6837\u7684\uff1f\n<\/code><\/pre>\n<h1>\u63a8\u8350\u6d41\u7a0b<\/h1>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_90b3f6b8841289ad2a7b7d13577d5cb4.jpg\" alt=\"\" \/><\/p>\n<h2>\u53ec\u56de\u7b56\u7565<\/h2>\n<pre><code>1\u3001\u884c\u4e3a\u53ec\u56de\uff1a\u57fa\u4e8e\u7269\u54c1\u7684\u534f\u540c\u8fc7\u6ee4\u601d\u60f3\uff08\u5927\u90e8\u5206\u7528\u6237\u540c\u65f6\u4e70\u4e86\u5546\u54c11\u548c\u5546\u54c12\uff0ca\u7528\u6237\u4e70\u4e86\u5546\u54c11\u5219\u63a8\u8350\u5546\u54c12\uff09\u51b7\u542f\u52a8\u95ee\u9898\uff1a\u65b0\u7528\u6237\n2\u3001\u57fa\u4e8e\u5185\u5bb9\u7684\u53ec\u56de\uff1a\u57fa\u4e8e\u4f60\u6d4f\u89c8\u7684\u5185\u5bb9\uff0c\u6216\u8005\u6839\u57fa\u4f60\u7684\u5386\u53f2\u8ba2\u5355\uff0c\u8ba1\u7b97\u4e0e\u8fd9\u4e9b\u5546\u54c1\u76f8\u4f3c\u7684\u5546\u54c1 \u53ec\u56de\u51fa\u6765 \u57fa\u4e8e\u5185\u5bb9\u7684\u534f\u540c\u8fc7\u6ee4\uff09\u4fe1\u606f\u8327\u623f\u95ee\u9898\uff1a\u63a8\u8350\u7684\u5185\u5bb9\u90fd\u662f\u540c\u4e00\u4e2a\u9886\u57df\u7684\uff0c\u6ca1\u6709\u65b0\u82b1\u6837\uff0c\u4f1a\u5bfc\u81f4\u7528\u6237\u7684\u89c6\u91ce\u53d8\u7a84\n3\u3001\u5b9e\u65f6\u53ec\u56de\uff1a\uff08\u6b63\u5728\u6d4f\u89c8\u5546\u54c1...\uff0c\u6d41\u5f0f\u8ba1\u7b97\u5b9e\u65f6\u53ec\u56de\u4e0e\u5f53\u524d\u6d4f\u89c8\u7684\u5546\u54c1\u76f8\u4f3c\u7684\u5546\u54c1\uff09\n4\u3001\u70ed\u95e8\u53ec\u56de\uff1a\uff08\u5c06\u6700\u8fd1\u6700\u70ed \u6700\u706b\u7684\u4fe1\u606f\u6216\u8005\u5546\u54c1\u53ec\u56de\uff0c\u4e0d\u57fa\u4e8e\u4efb\u4f55\u7684\u7528\u6237\u753b\u50cf\uff09\n<\/code><\/pre>\n<p>1\uff0c2 T+1\u79bb\u7ebf\u53ec\u56de<br \/>\n3\uff0c4\u5b9e\u65f6\u53ec\u56de\uff08\u5177\u6709\u5076\u7136\u6027\uff09<\/p>\n<p>\u9009\u62e9\u54ea\u4e00\u79cd\u53ec\u56de\u7b56\u7565\uff1f<\/p>\n<p>\u591a\u8def\u53ec\u56de->\u5e76\u96c6<br \/>\n\u56db\u79cd\u53ec\u56de\u7b56\u7565\u5168\u90e8\u91c7\u7528<\/p>\n<h1>\u8861\u91cf\u63a8\u8350\u7cfb\u7edf\u597d\u574f\u7684\u6307\u6807<\/h1>\n<pre><code>1\u3001CTR\uff08click through rate\uff09\n\u70b9\u51fb\u7387CTR=\u70b9\u51fb\u91cf\/\u66dd\u5149\u91cf \n10\/100=10%\n\uff081\uff09\u63a8\u8350\u5185\u5bb9\uff1a\u5766\u80f8\u9732\u4e73\uff0c\u4e09\u4fd7 CTR\n\uff082\uff09\u4fe1\u606f\u8327\u623f\uff1a\u519b\u4e8b\u8ff7-&gt;\u519b\u4e8b\u76f8\u5173 CTR\uff08\u5c0f\u7f16\u7684\u6d41\u5931\uff0c\u65b0\u9886\u57df\u5199\u6587\u7ae0\uff0c\u6587\u7ae0\u6c38\u8fdc\u4e0d\u4f1a\u51fa\u73b0\u5728\u7528\u6237\u63a8\u8350\u5217\u8868\u91cc\u9762\uff09\uff08\u7535\u5546\u5e73\u53f0\u5546\u54c1\u6210\u4e3a\u957f\u5c3e\u5546\u54c1\uff09\n\u957f\u5c3e\u7406\u8bba\uff1a\u957f\u5c3e\u5546\u54c1\u6240\u5360\u7684\u5e02\u573a\u4efd\u989d&gt;\u5c11\u6570\u70ed\u95e8\u5546\u54c1\u5e02\u573a\u4efd\u989d\n\u4e00\u4e2a\u597d\u7684\u63a8\u8350\u7cfb\u7edf\u53ef\u4ee5\u5f88\u597d\u7684\u89e3\u51b3\u957f\u5c3e\u5546\u54c1\u95ee\u9898\n2\u3001UCTR\nUCTR=\u6709\u70b9\u51fb\u884c\u4e3a\u7684\u7528\u6237\/\u8bbf\u95ee\u63a8\u8350\u7ed3\u679c\u603b\u7528\u6237\n100\/10000=1%\n3\u3001\u8986\u76d6\u5ea6\n\u63a8\u8350\u66dd\u5149\u91cf\/\u4fe1\u606f\u603b\u91cf\n1w\/10w\n\u8986\u76d6\u5ea6\u4f4e=\u300b\u957f\u5c3e\u5546\u54c1\u95ee\u9898 \u4fe1\u606f\u8327\u623f\n\u8986\u76d6\u5ea6\u9ad8-\u3009\u4e09\u4fd7\u60c5\u51b5\u6bd4\u8f83\u4f4e\nCTR \u00a0 \u8986\u76d6\u5ea6 \u4e92\u76f8\u77db\u76fe\n\u5982\u7ed9\u519b\u4e8b\u8ff7\u63a8\u8350\u5176\u4ed6\u9886\u57df\u7684\u6587\u7ae0\uff0c\u8986\u76d6\u5ea6\u9ad8\u4e86\uff0cCTR\u4f4e\n<\/code><\/pre>\n<h2>\u63a8\u8350\u7cfb\u7edf\u5982\u4f55\u8861\u91cf\u597d\u574f\uff1f<\/h2>\n<p>\u63a8\u8350\u7cfb\u7edf\u51c6\uff0c\u53ef\u80fd\u6709\u4fe1\u606f\u8327\u623f\u95ee\u9898<br \/>\n\u63a8\u8350\u7cfb\u7edf\u4e0d\u51c6\uff0c\u7528\u6237\u4e0d\u559c\u6b22\u770b<br \/>\n\u90a3\u8981\u5982\u4f55\u8861\u91cf\u63a8\u8350\u7cfb\u7edf\u7684\u597d\u574f\u4e86\uff1f<\/p>\n<h2>\u6839\u636e\u573a\u666f\u6765\u8861\u91cf\u63a8\u8350\u7cfb\u7edf<\/h2>\n<p>\u5982\u7535\u5546\u7f51\u7ad9\uff0c\u53ef\u4ee5\u901a\u8fc7\u8d2d\u4e70\u7387\u6765\u8861\u91cf\u63a8\u8350\u7cfb\u7edf\u597d\u574f<\/p>\n<p>\u8d2d\u4e70\u7387=\u901a\u8fc7\u63a8\u8350\u5217\u8868\u8d2d\u4e70\u5546\u54c1\u7684\u4eba\u6570\/\u603b\u4eba\u6570<br \/>\n\u4e9a\u9a6c\u900a 32%\u4eac\u4e1c 17% \uff08\u95ee\u9898\u51fa\u5728\u6570\u636e\u8d28\u91cf\u4e0a\uff09<\/p>\n<p>\u56e0\u4e3a\u7535\u5546\u5e73\u53f0\u4e00\u5473\u7684\u8ffd\u6c42\u8d2d\u4e70\u7387<br \/>\n\u4f18\u5148\u63d0\u9ad8CTR UCTR<br \/>\n\u8986\u76d6\u5ea6\u653e\u5230\u6700\u540e<br \/>\n\u8ffd\u6c42\u5438\u5f15\u7528\u6237<\/p>\n<h1>Lambda\u67b6\u6784<\/h1>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/wp_editor_md_404d4203915ce7293bf429b5e2c28c99.jpg\" alt=\"\" \/><\/p>\n<h2>\u79bb\u7ebf\u8bad\u7ec3<\/h2>\n<h3>\u6784\u5efa\u63a8\u8350\u7cfb\u7edf\u8bad\u7ec3\u96c6<\/h3>\n<p><strong>1\u3001\u7528\u6237\u884c\u4e3a\u6570\u636e<\/strong><\/p>\n<p>(\u663e\u793a\u51fa\u7528\u6237\u7684\u559c\u597d \u4e00\u6bb5\u65f6\u95f4\u5185\uff0c\u8bbf\u95eeapp\u5e76\u4e14\u8fd8\u4e0b\u8f7d\u4e86\uff0c\u90a3\u4e48\u4ee3\u8868\u5bf9\u8fd9\u4e2aapp\u662f\u559c\u6b22\u7684)<\/p>\n<p>001 20:35:01 app1 \u00a00&#8230;<br \/>\n001 20:35:02 app2 0&#8230;<br \/>\n001 20:35:03 app1 \u00a01&#8230;<br \/>\n001 20:59:01 \u00a0app3 1&#8230;<\/p>\n<p>\u9690\u5f0f\u7528\u6237\u53cd\u9988\u6570\u636e<br \/>\n1 \u559c\u6b22 0 \u4e0d\u559c\u6b22<\/p>\n<p><strong>2\u3001\u7528\u6237\u5386\u53f2\u4e0b\u8f7d\u8868<\/strong><\/p>\n<p>\uff08\u7528\u6237\u753b\u50cf\u6570\u636e\uff09<\/p>\n<p>001 app100 app200 app300<\/p>\n<p><strong>3\u3001app\u5546\u54c1\u8bcd\u8868<\/strong><\/p>\n<p>app1 v1.1 \u00a0 tencent &#8230;<br \/>\napp2 2.0 \u00a0 baidu<br \/>\napp3 v3.2 \u00a0ali<\/p>\n<h3>one-hot\u7f16\u7801 \u7279\u5f81\u79bb\u6563\u5316<\/h3>\n<p>y\u8f74 0 1 \u559c\u6b22 \u4e0d\u559c\u6b22<\/p>\n<p>x\u8f74 \u7279\u5f81\u79bb\u6563\u5316\u540d\u79f0<\/p>\n<p>\u57fa\u4e8e\u7269\u54c1\u753b\u50cf\u6784\u5efa\u7684\u7279\u5f81\uff083\u3001app\u5546\u54c1\u8bcd\u8868\uff09<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5f811<\/th>\n<th>\u7279\u5f812<\/th>\n<th>\u7279\u5f813<\/th>\n<th>\u7279\u5f814<\/th>\n<th>\u7279\u5f815<\/th>\n<th>\u7279\u5f816<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>version-1.1<\/td>\n<td>version-2.0<\/td>\n<td>version-3.2<\/td>\n<td>auther.tencnet<\/td>\n<td>auth.ali<\/td>\n<td>auth.baidu<\/td>\n<\/tr>\n<tr>\n<td>1 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a00 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a00 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a01 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a0 \u00a00 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a00<\/td>\n<\/tr>\n<tr>\n<td>0 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 0 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a00 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a0 0 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a01<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u57fa\u4e8e\u7528\u6237\u753b\u50cf\u6784\u5efa\u7684\u7279\u5f81\uff081\u3001\u7528\u6237\u884c\u4e3a\u6570\u636e 2\u3001\u7528\u6237\u5386\u53f2\u4e0b\u8f7d\u8868\uff09<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5f811<\/th>\n<th>\u7279\u5f812<\/th>\n<th>\u7279\u5f813<\/th>\n<th>\u7279\u5f814<\/th>\n<th>\u7279\u5f815<\/th>\n<th>\u7279\u5f816<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>app1*app100<\/td>\n<td>\u00a0 app1*app200 \u00a0<\/td>\n<td>app1*app300<\/td>\n<td>app2*app100<\/td>\n<td>app2*app200<\/td>\n<td>app2*app300<\/td>\n<\/tr>\n<tr>\n<td>1 \u00a0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/td>\n<td>1 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/td>\n<td>0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a00\u00a0 \u00a0 \u00a0<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a00 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/td>\n<td>0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 \u00a01 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/td>\n<td>1 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/td>\n<td>\u00a0 1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u8bad\u7ec3\u9884\u6d4b\u6a21\u578b<\/h3>\n<p>LR\u903b\u8f91\u56de\u5f52<br \/>\n\u8bad\u7ec3\u6a21\u578b<\/p>\n<h4>model \u5b58\u7684\u662f\u6743\u91cd\u503c<\/h4>\n<p>app1<em>app100 10<br \/>\napp1<\/em>app200 100<br \/>\nversion-1.1 \u00a0 \u00a0 10&#8230;&#8230;<\/p>\n<h2>\u6784\u5efa\u6d4b\u8bd5\u96c6<\/h2>\n<p>\u6d4b\u8bd5\u96c6<br \/>\nuserID\uff1a001 app999 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