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Difference between classification and clustering in data mining? [closed]

Can someone explain what the difference is between classification and clustering in data mining? 21 Answers ...
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Differences between Emacs and Vim

... better than the other, what are the practical differences between Emacs and Vim? I'm looking to learn one or the other, but I realize the learning curve for each is high and I can't decide. I have never used an editor of this type (I've always used IDEs), so anything that helps a newbie is a plus...
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Why does modern Perl avoid UTF-8 by default?

...riable to AS. This makes all Perl scripts decode @ARGV as UTF‑8 strings, and sets the encoding of all three of stdin, stdout, and stderr to UTF‑8. Both these are global effects, not lexical ones. At the top of your source file (program, module, library, dohickey), prominently assert that you are...
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HTML 5 tag vs Flash video. What are the pros and cons?

...'re pondering on how to embed video in your page, just use <video> and don't give it a second thought. This question is only preserved for historical value. ...
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What is the difference between SAX and DOM?

I read some articles about the XML parsers and came across SAX and DOM . 10 Answers ...
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Maximum single-sell profit

... , with buyDay ≤ sellDay , such that if we bought the stock on buyDay and sold it on sellDay , we would maximize our profit. ...
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Hibernate vs JPA vs JDO - pros and cons of each? [closed]

I'm familiar with ORM as a concept, and I've even used nHibernate several years ago for a .NET project; however, I haven't kept up with the topic of ORM in Java and haven't had a chance to use any of these tools. ...
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What is the difference between a URI, a URL and a URN?

People talk about URL s, URI s, and URN s as if they're different things, but they look the same to the naked eye. 31 An...
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Any good boolean expression simplifiers out there? [closed]

I was refactoring old code and encountered several IF conditions that were way too complex and long and I'm certain they can be simplified. My guess is that those conditions grew so much because of later modifications. ...
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Learn C first before learning Objective-C [closed]

... community if it is better to learn C first before moving into Objective-C and ultimately the Cocoa Framework? 23 Answers ...