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How do I determine k when using k-means clustering?
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142
You can maximize the Bayesian Information Criterion (BIC):
BIC(C | X) = L(X | C) - (p / 2) * l...
Any tools to generate an XSD schema from an XML instance document? [closed]
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Sachin Joseph
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answered Sep 16 '08 at 17:41
DanimalDanimal
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Facebook Architecture [closed]
...sing the latest 5.3 and I'm willing to bet there's still a lot that is PHP 4 compatible. Otherwise, they couldn't use HipHop. HipHop IS A GOOD IDEA and needs to grow and expand, but in it's current state it's not really useful for that many people who are building NEW PHP apps.
There's also PHP to ...
Iterate a list as pair (current, next) in Python
...ators:
def threes(iterator):
"s -> (s0,s1,s2), (s1,s2,s3), (s2, s3,4), ..."
a, b, c = itertools.tee(iterator, 3)
next(b, None)
next(c, None)
next(c, None)
return zip(a, b, c)
share
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Python List vs. Array - when to use?
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447
Basically, Python lists are very flexible and can hold completely heterogeneous, arbitrary dat...
In Java, what is the best way to determine the size of an object?
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470
You can use the java.lang.instrument package
Compile and put this class in a JAR:
import jav...
How to document class attributes in Python? [closed]
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edited Jul 8 '18 at 22:45
answered Jun 16 '10 at 7:25
ʇ...
In what cases do I use malloc and/or new?
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404
Unless you are forced to use C, you should never use malloc. Always use new.
If you need a b...
How can I search Git branches for a file or directory?
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454
git log + git branch will find it for you:
% git log --all -- somefile
commit 55d2069a092e07...