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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...
ApartmentState for dummies
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edited Jun 10 '19 at 14:19
answered Nov 11 '10 at 15:23
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how to generate migration to make references polymorphic
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As far as I know, there's no built-in generator for polymorphic associations. Generate a blank ...
What does the arrow operator, '->', do in Java?
... johannchopin
4,84855 gold badges1818 silver badges4040 bronze badges
answered Feb 28 '13 at 21:35
Óscar LópezÓscar López
207k...
Git stash uncached: how to put away all unstaged changes?
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Update 2:
I'm not sure why people are complaining about this answer, it seems to be working per...
Why does Java's Arrays.sort method use two different sorting algorithms for different types?
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The most likely reason: quicksort is not stable, i.e. equal entries can change their relative p...
How can I set the max-width of a table cell using percentages?
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answered Dec 11 '11 at 17:30
Jukka K. KorpelaJukka K. Korpela
171k3030 gold badges223223 silver badges332332 bronze badges
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How to count occurrences of a column value efficiently in SQL?
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edited Oct 1 '09 at 16:38
answered Oct 1 '09 at 13:30
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How do I copy a hash in Ruby?
...e method is Ruby's standard, built-in way to do a shallow-copy:
irb(main):003:0> h0 = {"John" => "Adams", "Thomas" => "Jefferson"}
=> {"John"=>"Adams", "Thomas"=>"Jefferson"}
irb(main):004:0> h1 = h0.clone
=> {"John"=>"Adams", "Thomas"=>"Jefferson"}
irb(main):005:0>...
Check if application is installed - Android
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Try this:
private boolean isPackageInstalled(String packageName, PackageManager packageManager...