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\/><\/figure><\/div>\n\n\n\n<p>\u4f46\u5b9e\u9645\u4e0a\uff0c\u6570\u636e\u7801\u519c\u7684\u5de5\u4f5c\u72b6\u6001\u901a\u5e38\u662f\u8fd9\u6837\u7684\uff1a<br><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"440\" height=\"333\" src=\"https:\/\/falbang.com\/wp-content\/uploads\/2021\/06\/\u5fae\u4fe1\u56fe\u7247_20210602143521.jpg\" alt=\"\" class=\"wp-image-910\" srcset=\"https:\/\/falbang.com\/wp-content\/uploads\/2021\/06\/\u5fae\u4fe1\u56fe\u7247_20210602143521.jpg 440w, https:\/\/falbang.com\/wp-content\/uploads\/2021\/06\/\u5fae\u4fe1\u56fe\u7247_20210602143521-300x227.jpg 300w, https:\/\/falbang.com\/wp-content\/uploads\/2021\/06\/\u5fae\u4fe1\u56fe\u7247_20210602143521-200x151.jpg 200w\" sizes=\"(max-width: 440px) 100vw, 440px\" \/><\/figure><\/div>\n\n\n\n<p>\u6570\u636e\u79d1\u5b66\u5bb6\u7684\u4e00\u5929\u53ef\u80fd\u662f\u8fd9\u6837\u5f00\u59cb\u7684\uff1a<\/p>\n\n\n\n<p><br>\u65e9\u4e0a\u5230\u516c\u53f8\uff0c\u5148\u6253\u5f00\u90ae\u7bb1\u67e5\u770b\u9700\u6c42\u65b9\u7684\u65b0\u9700\u6c42\u548c\u8d1f\u53cd\u9988\u3002\u7136\u540e\u6253\u5f00jupyterlab\u5f00\u59cb\u8fdb\u884c\u6570\u636e\u6821\u5bf9\uff0c\u628a\u95ee\u9898\u53cd\u9988\u7ed9\u5de5\u7a0b\u5f00\u53d1\u7684\u5c0f\u4f19\u4f34\u3002\u6216\u8005\u5199\u6587\u6863\uff0c\u63d2\u5165\u4e00\u4e9b\u5206\u6790\u793a\u610f\u56fe\uff0c\u4ee5\u5e2e\u52a9\u9700\u6c42\u65b9\u53ef\u4ee5\u901a\u8fc7\u56fe\u8868\u66f4\u597d\u5730\u7406\u89e3\u6570\u636e\u3002<\/p>\n\n\n\n<p><br>\u4e0e\u6b64\u540c\u65f6\uff0c\u5c06\u8fd8\u6ca1\u5f00\u59cbRun\u7684\u62a5\u8868\u548c\u5b9e\u9a8c\u542f\u52a8\u4e0b\uff0c\u751a\u81f3\u800d\u800d\u5c0f\u5fc3\u673a\u5c06\u5f53\u5929\u8981\u7528\u7684spark\u8d44\u6e90\u5148\u5360\u4f4f\uff0c\u6bd5\u7adf\u6570\u636e\u5de5\u4f5c\u8005\u5904\u7406\u7684\u6570\u636e\u4e0d\u7ba1\u662f\u7ed3\u6784\u5316\u8fd8\u662f\u975e\u7ed3\u6784\u5316\uff0c\u90fd\u4f1a\u662f\u5e9e\u5927\u7684\u3002<\/p>\n\n\n\n<p><br>\u4e0d\u51fa\u610f\u6599\uff0c\u4e4b\u524d\u7684\u62a5\u8868\u548c\u5b9e\u9a8c\u7ed3\u679c\uff0c90%\u7684\u60c5\u51b5\u4e0b\u6548\u679c\u4e0d\u751a\u7406\u60f3\u3002\u6b63\u8981\u627e\u539f\u56e0\u7684\u65f6\u5019\uff0c\u4f1a\u8bae\u63d0\u9192\u95f9\u94c3\u54cd\u4e86\uff0c\u9a6c\u4e0d\u505c\u8e44\u8d76\u5230\u4f1a\u8bae\u5ba4\uff0c\u7ed9\u4e1a\u52a1\u9700\u6c42\u65b9\u5bf9\u63a5\u4ea4\u4ee3\u9700\u6c42\u8fdb\u5c55\u548c\u9884\u671f\u6548\u679c\u3002<\/p>\n\n\n\n<p><br>\u4e0b\u5348\u65f6\u95f4\u6293\u7d27\u505a\u62a5\u8868\u548c\u5b9e\u9a8c\uff0c\u5c06\u4e0a\u5348\u8dd1\u7684\u5b9e\u9a8c\u7ed3\u679c\u4ed4\u7ec6\u6821\u5bf9\uff0c\u5982\u679c\u53d1\u73b0\u4e00\u5806\u6570\u636e\u95ee\u9898\uff0c\u5219\u5f00\u59cb\u6328\u4e2a\u68c0\u67e5\u6837\u672c\u6570\u636e\uff0c\u91cd\u65b0\u8ba1\u7b97\u6210\u7279\u5f81\uff0c\u518d\u91cd\u65b0\u8dd1\u5b9e\u9a8c&#8230;&#8230;\u7ecf\u8fc7\u4e5d\u4e5d\u516b\u5341\u4e00\u6b21\u8c03\u6574\u540e\uff0c\u5b9e\u9a8c\u6548\u679c\u624d\u80fd\u663e\u73b0\u51fa\u6765\u3002\u6b64\u65f6\u62ac\u5934\u4e00\u770b\uff0c\u5df2\u7ecf\u662f\u665a\u4e0a\u4e5d\u70b9\u534a\u4e86\u3002<\/p>\n\n\n\n<p><br>\u867d\u7136\u8fd9\u662f\u4e00\u4e2a\u4e3e\u4f8b\uff0c\u4f46\u4e0d\u96be\u770b\u51fa\u6570\u636e\u79d1\u5b66\u5bb6\u7684\u65e5\u5e38\u5c31\u662f\u56f4\u7ed5\u9700\u6c42\u4e0e\u6570\u636e\uff0c\u4e0d\u65ad\u505a\u5b9e\u9a8c\u4e0e\u6a21\u578b\u3002<\/p>\n\n\n\n<h2>2\u3001\u5408\u683c\u7684\u6570\u636e\u79d1\u5b66\u5bb6\u753b\u50cf<\/h2>\n\n\n\n<p><br>\u4e0a\u8ff0\u624d\u662f\u6570\u636e\u79d1\u5b66\u5bb6\u7684\u771f\u5b9e\u65e5\u5e38\u3002\u5176\u5b9e\u6570\u636e\u79d1\u5b66\u5bb6\u7684\u5de5\u4f5c\u4e0d\u4ec5\u4ec5\u662f\u5904\u7406\u6570\u636e\uff0c\u5236\u4f5c\u6a21\u578b\uff0c\u8fd8\u6d89\u53ca\u5927\u91cf\u7684\u6c9f\u901a\u534f\u8c03\uff0c\u548c\u4e0a\u6e38\u7684\u6570\u636e\u6e90\u7aef\u6c9f\u901a\u6570\u636e\u903b\u8f91\uff0c\u548c\u4e0b\u6e38\u7684\u4e1a\u52a1\u65b9\u6c9f\u901a\u9700\u6c42\u548c\u6570\u636e\u670d\u52a1\u6548\u679c\u7b49\u3002\u4f18\u79c0\u7684\u6570\u636e\u79d1\u5b66\u5bb6\uff0c\u4e00\u822c\u90fd\u517c\u5177\u8fc7\u786c\u7684\u6280\u672f\u80fd\u529b\u548c\u4e00\u6d41\u7684\u6c9f\u901a\u6c34\u5e73\u3002<\/p>\n\n\n\n<p><br><strong>\u2460\u6280\u672f\u90e8\u5206\uff1a<\/strong><\/p>\n\n\n\n<ul><li>\u8c03\u7814\u6240\u9700\u6570\u636e\u6e90<\/li><li>\u5206\u6790\u539f\u59cb\u6570\u636e<\/li><li>\u6821\u9a8c\u6570\u636e\u8d28\u91cf\u548c\u903b\u8f91<\/li><li>\u7279\u5f81\u5de5\u7a0b<\/li><li>\u7279\u5f81\u8bc4\u4f30<\/li><li>\u6a21\u578b\u8bad\u7ec3<\/li><li>\u6a21\u578b\u90e8\u7f72<\/li><li>\u7ebf\u4e0a\u6a21\u578b\u8fd0\u8425<\/li><li>\u4e66\u5199\u7279\u5f81\u548c\u6a21\u578b\u6587\u6863<\/li><\/ul>\n\n\n\n<p><strong>\u2461\u6c9f\u901a\u90e8\u5206\uff1a<\/strong><\/p>\n\n\n\n<ul><li>\u548c\u4e0a\u6e38\u6570\u636e\u7aef\u6c9f\u901a\u6570\u636e\u903b\u8f91<\/li><li>\u63d0\u4f9b\u6570\u636e\u95ee\u9898\u7684\u6848\u4f8b\u5e76\u8ddf\u8fdb\u4e0a\u6e38\u6570\u636e\u95ee\u9898\u7684\u89e3\u51b3\u8fdb\u5ea6<\/li><li>\u6536\u96c6\u4e0b\u6e38\u4e1a\u52a1\u65b9\u7684\u9700\u6c42<\/li><li>\u548c\u4e0b\u6e38\u4e1a\u52a1\u65b9\u63a2\u8ba8\u9879\u76ee\u7684\u9884\u671f\u6548\u679c\u548c\u6392\u671f<\/li><li>\u5411\u4e1a\u52a1\u65b9\u6c47\u62a5\u6570\u636e\u670d\u52a1\u7684\u5b9e\u9a8c\u7ed3\u679c\u548c\u9884\u671f\u6548\u679c<\/li><li>\u6536\u96c6\u4e1a\u52a1\u65b9\u4f7f\u7528\u6570\u636e\u670d\u52a1\u7684\u53cd\u9988\u610f\u89c1\u5e76\u6709\u9488\u5bf9\u6027\u7684\u6539\u8fdb<\/li><\/ul>\n\n\n\n<p>\u628a\u8fd9\u4e9b\u70b9\u4e32\u6210\u4e00\u4e2a\u9879\u76ee\u6d41\u7a0b\u7684\u8bdd\u5c31\u662f\u5982\u4e0b\u7684\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol><li>\u5bf9\u63a5\u9700\u6c42<\/li><li>\u6570\u636e\u8c03\u7814<\/li><li>\u6570\u636e\u6cbb\u7406<\/li><li>\u7279\u5f81\u5de5\u7a0b<\/li><li>\u6a21\u578b\u6784\u5efa<\/li><li>\u6a21\u578b\u8fd0\u8425<\/li><\/ol>\n\n\n\n<h2>3\u3001\u6848\u4f8b\u8be6\u89e3\u6570\u636e\u79d1\u5b66\u5bb6\u7684\u5e38\u89c4\u5de5\u4f5c\u6d41\u7a0b<\/h2>\n\n\n\n<p><br>\u672c\u6587\u4ee5\u4fe1\u8d37\u98ce\u63a7\u5efa\u6a21\u9879\u76ee\u4e3a\u4f8b\uff0c\u8ba9\u6211\u4eec\u5177\u4f53\u6765\u770b\u770b\u6570\u636e\u79d1\u5b66\u5bb6\u7684\u5de5\u4f5c\u6d41\u7a0b\u3002<\/p>\n\n\n\n<p><br><strong>3.1.\u6c9f\u901a\u9700\u6c42<\/strong><br>\u4fe1\u8d37\u98ce\u63a7\u8981\u8bc4\u4f30\u7528\u6237\u7684\u4fe1\u7528\u98ce\u9669\uff0c\u5373\u9700\u83b7\u53d6\u7528\u6237\u4e2a\u4eba\u6570\u636e\uff0c\u4ee5\u6b64\u4e3a\u4f9d\u636e\u7ed9\u7528\u6237\u4fe1\u7528\u8bc4\u5206\u3002\u5728\u5f00\u5c55\u9879\u76ee\u524d\uff0c\u6700\u5f00\u59cb\u9700\u8981\u4e86\u89e3\u9700\u6c42\u65b9\u7684\u9700\u6c42\uff1a\u76ee\u524d\u516c\u53f8\u5f00\u5c55\u7ebf\u4e0a\u5c0f\u989d\u4fe1\u8d37\u4e1a\u52a1\uff0c\u9700\u8981\u4e00\u4e2a\u8d37\u524d\u98ce\u63a7\u4fe1\u7528\u8bc4\u5206\u6a21\u578b\uff0c\u4ee5\u4fbf\u80fd\u7cbe\u51c6\u4e14\u5ba2\u89c2\u7684\u533a\u5206\u597d\u574f\u7b49\u7ea7\u5ba2\u7fa4\u3002<br><\/p>\n\n\n\n<p><strong>3.2.\u6574\u7406\u6570\u636e<\/strong><br>\u987a\u5229\u5b8c\u6210\u9700\u6c42\u6c9f\u901a\u540e\uff0c\u6570\u636e\u79d1\u5b66\u5bb6\u9700\u8981\u5728\u516c\u53f8\u6570\u636e\u5e93\u91cc\u627e\u5230\u4e0e\u9879\u76ee\u76f8\u5173\u7684\u6570\u636e\uff0c\u5e76\u4e0e\u6570\u636e\u6e90\u7684\u8d1f\u8d23\u4eba\u6c9f\u901a\uff0c\u4e86\u89e3\u6570\u636e\u6536\u96c6\u548c\u5b58\u50a8\u60c5\u51b5\uff0c\u786e\u5b9a\u662f\u5426\u9002\u5408\u5728\u98ce\u63a7\u9879\u76ee\u4e2d\u4f7f\u7528\u3002<\/p>\n\n\n\n<p><br>\u4f8b\u5982\u67d0\u6570\u636e\u8868\u91cc\u7684\u6027\u522b\u5b57\u6bb5\u4e0d\u662f\u7528\u6237\u586b\u5199\u7684\uff0c\u800c\u662f\u6211\u53f8\u6839\u636e\u7528\u6237\u884c\u4e3a\u6570\u636e\u9884\u6d4b\u51fa\u6765\u7684\uff0c\u90a3\u8fd9\u4e2a\u6570\u636e\u5c31\u4e0d\u592a\u9002\u5408\u76f4\u63a5\u4f7f\u7528\u5728\u4fe1\u8d37\u98ce\u63a7\u6a21\u578b\u91cc\u3002<br><\/p>\n\n\n\n<p>\u56e0\u4e3a\u6a21\u578b\u4f7f\u7528\u7684\u6570\u636e\u4e00\u822c\u90fd\u662f\u4e00\u624b\u6570\u636e\uff0c\u7ecf\u8fc7\u5176\u4ed6\u6a21\u578b\u52a0\u5de5\u9884\u6d4b\u51fa\u7684\u6570\u636e\uff0c\u5176\u81ea\u8eab\u7a33\u5b9a\u6027\u4f1a\u968f\u7740\u6a21\u578b\u7248\u672c\u7684\u53d8\u5316\u800c\u53d8\u5316\u3002\u5982\u679c\u4e00\u5b9a\u8981\u7528\u8fd9\u4e2a\u6027\u522b\u6570\u636e\uff0c\u66f4\u5efa\u8bae\u76f4\u63a5\u628a\u9884\u6d4b\u8fd9\u4e2a\u6027\u522b\u7528\u7684\u539f\u59cb\u6570\u636e\u653e\u5230\u4fe1\u8d37\u98ce\u63a7\u6a21\u578b\u7684\u8f93\u5165\u4e2d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"476\" height=\"274\" src=\"https:\/\/falbang.com\/wp-content\/uploads\/2021\/06\/3-1.png\" alt=\"\" class=\"wp-image-911\" srcset=\"https:\/\/falbang.com\/wp-content\/uploads\/2021\/06\/3-1.png 476w, https:\/\/falbang.com\/wp-content\/uploads\/2021\/06\/3-1-300x173.png 300w, https:\/\/falbang.com\/wp-content\/uploads\/2021\/06\/3-1-200x115.png 200w\" sizes=\"(max-width: 476px) 100vw, 476px\" \/><\/figure>\n\n\n\n<p>\u786e\u5b9a\u6570\u636e\u540e\uff0c\u63a5\u4e0b\u6765\u5c31\u662f\u68c0\u67e5\u6570\u636e\u8d28\u91cf\u3002\u4e00\u901aSQL\u67e5\u8be2\u64cd\u4f5c\uff0c\u628a\u6570\u636e\u6574\u7406\u5230pandas\u91cc\u3002\u8fd9\u91cc\u798f\u5229\u7ed9\u5230\u6211\u4eec\u7684\u8bfb\u8005\u670b\u53cb\u4eec\uff0c\u8d34\u4e0a\u5e38\u89c1\u7684spark\u67e5\u8be2\u8f6cpandas\u7684\u4ee3\u7801\u6a21\u677f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\"><p>sql_stmt = &#8220;&#8221;&#8221;<br>&nbsp; &nbsp;SELECT a, b, c, &#8230; FROM table WHERE XXX<br>&#8220;&#8221;&#8221;<br>spark_df = spark.sql(sql_stmt)<br><br>median = F.udf(lambda x: float(np.median(x)), FloatType())<br>cnt_case = lambda c: F.sum(func.when(c, 1).otherwise(0))<br>avg_case = lambda c: F.mean(F.when(c, 1).otherwise(0))<br><br>lst_expr = [<br>&nbsp; &nbsp;F.count(&#8216;a&#8217;).alias(&#8216;ft_a&#8217;),<br>&nbsp; &nbsp;F.countDistinct(&#8216;b&#8217;).alias(&#8216;ft_b&#8217;),<br>&nbsp; &nbsp;F.sum(&#8216;c&#8217;).alias(&#8216;ft_c&#8217;),<br>&nbsp; &nbsp;func.mean(&#8216;d&#8217;).alias(&#8216;ft_d&#8217;),<br>&nbsp; &nbsp;median(F.collect_list(F.col(&#8216;e&#8217;))).alias(&#8216;ft_e&#8217;),<br>&nbsp; &nbsp;func.max(&#8216;f&#8217;).alias(&#8216;ft_f&#8217;),<br>&nbsp; &nbsp;cnt_case(F.col(&#8216;g&#8217;) &gt; 0).alias(&#8216;ft_g&#8217;),<br>&nbsp; &nbsp;cnt_case(F.col(&#8216;h&#8217;).isNotNull()).alias(f&#8217;ft_h&#8217;),<br>&nbsp; &nbsp;avg_case(F.col(&#8216;i&#8217;) &gt; 0).alias(&#8216;ft_i&#8217;),<br>&nbsp; &nbsp;cnt_case(F.col(&#8216;j&#8217;) != -1).alias(f&#8217;ft_j&#8217;)<br>]<br>spark_feature = spark_df.groupBy(&#8216;pkey&#8217;).agg(*lst_expr)<br>pandas_feature = spark_feature.toPandas()<\/p><\/blockquote>\n\n\n\n<p>\u7ed3\u679c\u8fd0\u884c\u5b8c\u67e5\u8be2\u8bed\u53e5\u4e00\u770b\uff0c\u6536\u5165\u680f\u4e2d80%\u7684\u6570\u636e\u7f3a\u5931\uff0c\u5730\u5740\u680f\u5168\u662f\u624b\u586b\u4e71\u7801\u548c\u62fc\u5199\u9519\u8bef\u7b49\u7b49\u4e00\u5806\u6570\u636e\u95ee\u9898\u3002\u8fd9\u4e9b\u90fd\u662f\u6570\u636e\u8d28\u91cf\u4e0d\u4f73\u5f15\u8d77\u7684\u3002<\/p>\n\n\n\n<p>\u5e38\u89c1\u7684\u6570\u636e\u8d28\u91cf\u95ee\u9898\u5305\u62ec\uff1a<\/p>\n\n\n\n<ol><li>\u6570\u636e\u8986\u76d6\u5ea6\u8fc7\u4f4e (20%~30%)<\/li><li>\u6570\u636e\u91cc\u96f6\u503c\u7387\u8fc7\u5927 (\u7279\u5f81\u5f88\u591a\u90fd\u662f\u6570\u6570\uff0c\u96f6\u901a\u5e38\u8868\u793a\u6ca1\u6709\u6570\u636e)<\/li><li>\u6570\u636e\u7a33\u5b9a\u6027\u5dee (\u6309\u65f6\u95f4\u770b\u6570\u636e\u5206\u5e03\u5dee\u5f02\u8fc7\u5927)<\/li><li>\u6570\u636e\u903b\u8f91\u9519\u914d (\u672c\u6765\u5b58A\u6570\u636e\u7684\u5b58\u6210B\u4e86)<\/li><\/ol>\n\n\n\n<p>\u4f5c\u4e3a\u4e00\u540d\u5408\u683c\u7684\u6570\u636e\u79d1\u5b66\u5bb6\uff0c\u4e00\u5b9a\u8981\u6709\u8db3\u591f\u7684\u8010\u5fc3\uff0c\u628a\u51fa\u73b0\u95ee\u9898\u7684\u5bf9\u5e94\u6570\u636e\u90fd\u8bb0\u5f55\u4e0b\u6765\uff0c\u7136\u540e\u548c\u6570\u636e\u6e90\u7684\u8d1f\u8d23\u4eba\u6c9f\u901a\u3002\u57fa\u672c\u4e0a\u7edd\u5927\u6570\u6570\u636e\u95ee\u9898\u5728\u591a\u6b21\u6c9f\u901a\u4e2d\u90fd\u80fd\u627e\u5230\u89e3\u51b3\u529e\u6cd5\u3002\uff08\u5176\u5b9e\u8fd9\u91cc\u8fd8\u6709\u4e00\u4e2a\u7ecf\u9a8c\u64cd\u4f5c\uff1a\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u628a\u51fa\u95ee\u9898\u7684\u6570\u636e\u4e22\u5f03\u4e0d\u7528\u5c31\u662f\u6700\u4f73\u89e3\u51b3\u65b9\u6848\uff0c\u4e0d\u7136\u7b49\u4e0a\u6e38\u89e3\u51b3\u6570\u636e\u95ee\u9898\u7684\u8bdd\uff0c\u9879\u76ee\u5c31\u5ef6\u671f\u5230\u660e\u5e74\u4e86\uff09\u3002<\/p>\n\n\n\n<p><br><strong>3.3.\u7279\u5f81\u5de5\u7a0b<\/strong><br>\u521a\u89e3\u51b3\u5b8c\u6570\u636e\u95ee\u9898\uff0c\u4e0b\u4e00\u6b65\u5c31\u8981\u5f00\u59cb\u505a\u7279\u5f81\u5de5\u7a0b\u3002\u5bf9\u4e8e\u5927\u591a\u6570\u6570\u636e\u79d1\u5b66\u5bb6\uff0c\u5e38\u5e38\u770b\u5230\u6574\u7406\u5b8c\u6570\u636e\u540e\u7684\u5341\u6765\u5f20\u8868\u7684\u6570\u636e\uff0c\u8fd9\u5fc3\u60c5\uff0c\u600e\u4e00\u4e2a\u6101\u5b57\u4e86\u5f97\u3002<\/p>\n\n\n\n<p><br>\u4f46\u5bf9\u4e00\u4e2a\u6709\u7ecf\u9a8c\u7684\u6570\u636e\u79d1\u5b66\u5bb6\u6765\u8bf4\uff0c\u5c11\u6570\u636e\u4e5f\u80fd\u5927\u8dc3\u8fdb\uff0c\u5404\u79cd\u6392\u5217\u7ec4\u5408\u5927\u6cd5\u505a\u7279\u5f81\uff0c\u7528\u6237\u7ef4\u5ea6\u3001\u5173\u7cfb\u7f51\u7edc\u3001\u65f6\u95f4\u622a\u9762\u3001\u65f6\u95f4\u5e8f\u5217\u3001embedding\u90fd\u53ef\u4ee5\u5c1d\u8bd5\u4e00\u904d\u3002<\/p>\n\n\n\n<p><br>\u8fd9\u91cc\uff0c\u6211\u4eec\u4e3e\u4e00\u4e2a\u4f8b\u5b50\u8be6\u7ec6\u4ecb\u7ecd\u4e0b\u600e\u4e48\u8ba9\u6570\u636e\u201c\u56db\u8c61\u5347\u516b\u5366\u201d:\u5047\u8bbe\u6211\u4eec\u73b0\u5728\u6709\u7528\u6237\u7684\u8d2d\u7269\u8ba2\u5355\u6570\u636e\uff0c<\/p>\n\n\n\n<p><br><strong>\u4ece\u5355\u4e2a\u7528\u6237\u89d2\u5ea6\uff1a<\/strong>\u53ef\u4ee5\u8ba1\u7b97\u7528\u6237\u8ba2\u5355\u6570\uff0c\u8ba2\u5355GMV\u7b49\u3002<br><br><strong>\u4ece\u5173\u7cfb\u7f51\u7edc\u89d2\u5ea6\uff1a<\/strong>\u8ba1\u7b97\u4e00\u4e2a\u7528\u6237\u6536\u8d27\u5730\u5740\u6240\u5728\u7701\u5e02\u533a\u7684\u5e73\u5747\u8ba2\u5355\u6570\/GMV\uff0c\u4e0b\u5355\u6240\u5728\u65f6\u95f4\u6bb5\u5e73\u5747\u8ba2\u5355\u6570\/GMV\uff0c\u4e0b\u5355\u6240\u5728IP\u6bb5\u5e73\u5747\u8ba2\u5355\u6570\/GMV<br><br><strong>\u65f6\u95f4\u622a\u9762\uff1a<\/strong>\u6700\u8fd1\u5927\u4fc3\u671f\u95f4\u7684\u8ba2\u5355\u6570\/GMV<br><br><strong>\u65f6\u95f4\u5e8f\u5217\uff1a<\/strong>\u6700\u8fd11\/3\/6\/12\u4e2a\u6708\u7684\u5e73\u5747\u8ba2\u5355\u6570\/GMV<br><br><strong>Embedding:<\/strong>\u62ff\u7528\u6237\u8ba2\u5355\u6240\u4e70\u5546\u54c1\u6784\u9020item2vec<br><br>\u901a\u8fc7\u4e0a\u9762\u5217\u4e3e\u7684\u4e00\u4e9b\u7279\u5f81\u5904\u7406\u65b9\u6cd5\uff0c\u53ef\u4ee5\u770b\u5230\u5c06\u5355\u4e00\u8ba2\u5355\u6570\u636e\u6e90\uff0c\u80fd\u884d\u751f\u51fa\u597d\u51e0\u767e\u4e2a\u7279\u5f81\u3002<\/p>\n\n\n\n<p><br>\u9700\u8981\u63d0\u9192\u7684\u662f\uff0c\u6784\u9020\u5b8c\u8fd9\u4e9b\u7279\u5f81\u540e\uff0c\u9700\u8981\u62ff\u7528\u6237case\u6838\u5bf9\u4e0b\u6570\u636e\u3002\u5982\u679c\u7279\u5f81\u8ba1\u7b97\u7ed3\u679c\u90fd\u548c\u5b9e\u9645\u7528\u6237\u6570\u636e\u80fd\u5339\u914d\u4e0a\u5c31\u53ef\u4ee5\u5f00\u59cb\u505a\u7279\u5f81\u8bc4\u4f30\u3002<\/p>\n\n\n\n<p><br><strong>3.4.\u6a21\u578b\u8bad\u7ec3<br><\/strong>\u5c06\u505a\u597d\u7684\u7279\u5f81\u548c\u6837\u672c\u6807\u7b7e\u5229\u7528\u673a\u5668\u5b66\u4e60\u3001\u6df1\u5ea6\u5b66\u4e60\u7b97\u6cd5\u5982\u903b\u8f91\u56de\u5f52\u3001\u968f\u673a\u68ee\u6797\u548cXGBoost\u7b49\u8fdb\u884c\u8bad\u7ec3\u3002\u4e0d\u51fa\u610f\u5916\uff0c\u521a\u5f00\u59cb\u7684\u8868\u73b0\u90fd\u4e0d\u4f1a\u5f88\u7406\u60f3\uff0c\u8fd9\u65f6\u4e00\u822c\u4e0d\u8981\u6025\u7740\u5728\u6a21\u578b\u4e0a\u627e\u95ee\u9898\uff0c\u7ecf\u9a8c\u4e0a\u5224\u65ad\uff0c\u5341\u6709\u516b\u4e5d\u8fd8\u662f\u6570\u636e\u4e0a\u6709\u7f3a\u9677\uff0c\u6700\u5e38\u89c1\u7684\u95ee\u9898\u5c31\u662f\u7279\u5f81\u4e0d\u7a33\u5b9a\u3002<\/p>\n\n\n\n<p><br>\u56e0\u4e3a\u6a21\u578b\u662f\u5728\u8bad\u7ec3\u96c6\u4e0a\u62df\u5408\u7684\uff0c\u5728\u6d4b\u8bd5\u96c6\u4e0a\u6548\u679c\u4e0d\u597d\u7684\u6700\u76f4\u63a5\u539f\u56e0\u5c31\u662f\u8bad\u7ec3\u96c6\u4e0a\u7684\u7279\u5f81\u5206\u5e03\u548c\u6d4b\u8bd5\u96c6\u7684\u4e0d\u4e00\u6837\u3002\u8fd9\u65f6\u5019\u518d\u53bb\u770b\u770b\u5404\u4e2a\u7279\u5f81\u7ef4\u5ea6\u4e0a\u7684\u7a7a\u503c\u7387\u548c\u96f6\u503c\u7387\u57fa\u672c\u5c31\u80fd\u628a\u4e0d\u7a33\u5b9a\u7684\u7279\u5f81\u627e\u51fa\u6765\u3002<\/p>\n\n\n\n<p><br>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u6211\u4eec\u53d1\u73b0\u4e0a\u9762\u6784\u9020\u7684\u8ba2\u5355\u6570\u7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