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海量数据相似度计算之simhash和海明距离 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...就拿最简单的两个数据使用Apache提供的 Levenshtein for 循环100w次计算这两个数据的相似度。代码结果如下：
String s1 = "你妈妈喊你回家吃饭哦，回家罗回家罗" ;
String s2 = "你妈妈叫你回家吃饭啦，回家罗回家罗" ;
long t1 = System.c...
How do I get the last character of a string?
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11 Answers
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Case insensitive regex in JavaScript
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214
You can add 'i' modifier that means "ignore case"
var results = new RegExp('[\\?&]' + name...
Better way to sum a property value in an array
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16 Answers
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Filter git diff by type of change
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edited Jul 29 '11 at 22:25
answered Jul 29 '11 at 22:14
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Git: How to return from 'detached HEAD' state
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edited Jan 25 '16 at 18:32
answered Aug 3 '12 at 18:20
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How to show vertical line to wrap the line in Vim?
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Edit: For Vim >=7.3 see answer below.
Unfortunately vim has no mechanism to display a verti...
Python mysqldb: Library not loaded: libmysqlclient.18.dylib
I just compiled and installed mysqldb for python 2.7 on my mac os 10.6. I created a simple test file that imports
15 Answe...
How to create ENUM type in SQLite?
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81
There is no enum type in SQLite, only the following:
NULL
INTEGER
REAL
TEXT
BLOB
Source: htt...