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RSS订阅转载 sklearn中 F1-micro 与 F1-macro区别和计算原理
https://www.cnblogs.com/techengin/p/8962024.html <div id="post_detail"> sklearn中 F1-micro 与 F1-macro区别和计算原理 最近在使用sklearn做分类时候，用到metrics...
2019-07-11 10:22:51
503
翻译 mysql 笔记
mysql> SELECT count() ,table_schema FROM information_schema.TABLES where table_schema in (‘government’,‘bankrisk’) group by table_schema;±---------±-------------+| count() | table_schema |±---...
2019-05-30 13:48:06
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转载 SparkML机器学习之特征工程（二）特征转化（Binarizer、StandardScaler、MaxAbsScaler、Normalizer、N-gram、Tokenizer等）
from https://yq.aliyun.com/articles/577701特征转化为什么要转化数据呢，就是要让它成为有效的特征，因为原始数据是很多脏数据无用数据的。常用的方法是标准化，归一化，特征的离散化等等。比如我输入的数据是句子，我得把它切分为一个个单词进行分析，这就是一种转化。连续型数据处理之二值化：Binarizer假设淘宝现在有个需求，我得根据年龄来进行物品推荐，把5...
2019-05-28 14:32:14
529
转载 PySpark SQL常用语法
from https://www.jianshu.com/p/177cbcb1cb6f PySpark SQL常用语法 <!-- 作者区域 --> <div class="author"> <a class="avatar" href="/u/fc7499020f49"> <img s...
2019-05-28 11:41:32
7054
转载 从0开始学pyspark（九）：使用pyspark.ml.regression模块
from https://blog.csdn.net/tonydz0523/article/details/83869447 版权声明：本文为博主原创文章，如若转载请注明出处 https://blog.csdn.net/tonydz0523/article/details/83869447 </div>...
2019-05-28 11:32:53
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转载 对数据仓库Hive的一些认识
首先我们得明白什么是数据仓库？ 数据仓库，英文名称为Data warehouse，可简写为DW或DWH。数据仓库的目的是构建面向分析的集成化数据环境，为企业提供决策支持（Decision Support）。它出于分析性报告和决策支持目的而创建。 数据仓库本身并不“生产”任何数据，同时自身也不需要“消费”任何的数据，数据来源于外部，并且开放给外部应用，这也...
2019-05-25 11:42:09
175
转载 目标检测中region proposal的作用
作者：YJHMITWEB链接：https://www.zhihu.com/question/265345106/answer/294410307来源：知乎著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。首先我们明确一个定义，当前主流的Object Detection框架分为1 stage和2 stage，而2 stage多出来的这个stage就是Regional Proposa...
2018-04-08 10:28:18
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转载 dedekind cut
from http://mymathforum.com/real-analysis/149031-dedekind-cut-s2.htmlA Dedekind cut is two sets of rational numbers with a real number "in between" (it may be a member of the set BB if t
2016-06-13 14:35:39
362
转载 The Schröder-Bernstein Theorem
see https://www.whitman.edu/mathematics/higher_math_online/section04.09.html
2016-03-04 09:20:54
431
转载 Tutorial on Axiomatic Set Theory
Tutorial on Axiomatic Set TheoryJavier R. MovellanIntuitively we think of sets as collections of elements. The crucial part of this intuitiveconcept is that we are willing to treat sets as entit
2015-07-25 22:30:54
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转载 Russell's Paradox: Here's Why Maths Can't Have A Set Of Everything
We recently wrote about how infinitely large sets are not all the same size as each other, but we were a bit vague about what we meant by a set.The people who invented set theory also started ou
2015-07-21 22:53:04
494
转载 Infinite sets
Are All Infinities the Same "Size"?So far we have mostly focused our attention on finite sets (that is, sets which are not infinite). But you may have noticed that most of the sets we work with in
2015-07-20 16:40:27
502
转载 Deriving the Poisson Distribution from the Binomial Distribution
At first glance, the binomial distribution and the Poisson distribution seem unrelated. But a closer look reveals a pretty interesting relationship. It turns out the Poisson distribution is just a
2015-07-10 17:02:20
546
Lectures in Logic and Set Theory- Volume 2, Set Theory
2016-02-22
Logic in Computer Science: Modelling and Reasoning about Systems
2015-08-25
introduction to topology pdf 高清 书签
2015-07-16
Introductory Statistics with R (Statistics and Computing) 第二版
2015-06-27
Markov Chains and Stochastic Stability
2015-06-13
Discovering Statistics Using R pdf 高清 自制书签
2015-03-19
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