参考: L1 Norm Regularization and Sparsity Explained for Dummies 专为小白解释的文章,文笔十分之幽默 减少feature的数量可以防止over fitting,尤其是在特征比样本数多得多的情况下。 L1就二维而言是一个四边形(L1 norm ...
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其他好文 时间:
2018-04-07 20:07:01
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119
索引 理解 GROUP BY 过滤数据 vs. 过滤分组 GROUP BY 与 ORDER BY 之不成文的规定 子查询 vs. 联表查询 相关子查询和不相关子查询. 增量构造复杂查询 Always More Than One Solution As explained earlier in thi ...
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数据库 时间:
2018-03-31 11:00:40
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226
If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver ...
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其他好文 时间:
2018-03-10 20:30:46
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171
In Arcady's garden there grows a peculiar apple-tree that fruits one time per year. Its peculiarity can be explained in following way: there are n inf ...
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其他好文 时间:
2018-03-05 19:29:32
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178
If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver ...
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其他好文 时间:
2018-02-10 18:14:19
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175
If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver ...
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其他好文 时间:
2017-10-24 21:00:17
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162
转自:https://dzone.com/articles/jvm-architecture-explained?oid=18544920 Every Java developer knows that bytecode will be executed by JRE (Java Runtime E ...
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其他好文 时间:
2017-10-13 00:37:09
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191
为了防止内存泄露,一旦threadlocal完成任务,最好调用remove() 详见:ThreadLocal explained ...
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其他好文 时间:
2017-08-28 00:42:24
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211
在sklearn中包含四种评价尺度,分别为mean_squared_error、mean_absolute_error、explained_variance_score 和 r2_score。 1、均方差(mean-squared-error) 2、平均绝对值误差(mean_absolute_err ...
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其他好文 时间:
2017-07-30 19:00:51
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257
In our first part of this article, we’ve explained in detail on how to install and configure latest Nagios Core 4.2.0on CentOS 7.2 server. In this art ...
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移动开发 时间:
2017-07-09 16:19:57
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304