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Deep Learning（深度学习）学习笔记整理系列之（二） - 大数据 & AI - 清泛...
...，不妨把这个碎片标记为 T。
他们提出的问题是，如何从这400个碎片中，选取一组碎片，S[k], 通过叠加的办法，合成出一个新的碎片，而这个新的碎片，应当与随机选择的目标碎片 T，尽可能相似，同时，S[k] 的数量尽可...
Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...用Tag Manager之前，我们先看看没有这个工具之前，我们是如何管理Tag脚本的。
Step 1：
按照Google Analytics的配置要求，我们把如下的脚本放到网站全局的页脚，如：footer.inc：
<script type=”text/javascript”>
var _gaq = _gaq || [];
_gaq....
Two single-column indexes vs one two-column index in MySQL?
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"MySQL can use multiple-column indexes for queries that test all the columns in the index, or queries that test just the first column, the first two columns, the first three columns, and so on. If you specify the columns in th...
MySQL: multiple tables or one table with many columns?
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Recently I was faced with this same problem, because MySQL InnoDB tables have a relatively small length limit (~8000 bytes). In my problem table (data from very lengthy insurance forms, more than 100 columns) we have multiple varchar columns, all UTF8. So we easily filled the ~...
How to fix “Incorrect string value” errors?
...ame` = `tables`.`table_collation`
;
Last, check your database settings:
mysql> show variables like '%colla%';
mysql> show variables like '%charac%';
If source, transport and destination are UTF-8, your problem is gone;)
...
Return 0 if field is null in MySQL
In MySQL, is there a way to set the "total" fields to zero if they are NULL?
5 Answers
...
Running single test from unittest.TestCase via command line
...import sys
import unittest
test_pattern = 'mytest/module/name.py'
PACKAGE_ROOT_DIRECTORY = os.path.dirname( os.path.realpath( __file__ ) )
loader = unittest.TestLoader()
start_dir = os.path.join( PACKAGE_ROOT_DIRECTORY, 'testing' )
suite = loader.discover( start_dir, test_pattern )
runner = unitt...
Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
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It depends. See the MySQL Performance Blog post on this subject: To SQL_CALC_FOUND_ROWS or not to SQL_CALC_FOUND_ROWS?
Just a quick summary: Peter says that it depends on your indexes and other factors. Many of the comments to the post seem to...
Deep Learning（深度学习）学习笔记整理系列之（二） - 大数据 & AI - 清泛...
...，不妨把这个碎片标记为 T。
他们提出的问题是，如何从这400个碎片中，选取一组碎片，S[k], 通过叠加的办法，合成出一个新的碎片，而这个新的碎片，应当与随机选择的目标碎片 T，尽可能相似，同时，S[k] 的数量尽可...
How do I use installed packages in PyCharm?
...
For me, it was just a matter of marking the directory as a source root.
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