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Find MongoDB records where array field is not empty
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answered Aug 5 '14 at 15:24
Chris'Chris'
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Initialization of an ArrayList in one line
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answered Jun 17 '09 at 4:13
coobirdcoobird
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What is the advantage to using bloom filters?
...re. If a 1% false
positive rate seems too high, each
time we add about 4.8 bits per element
we decrease it by ten times.
Pretty clear to me.
A bloom filter doesn't store the elements themselves, this is the crucial point. You don't use a bloom filter to test if an element is present, you us...
How can I use pickle to save a dict?
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edited Dec 24 '16 at 23:01
answered Jun 27 '12 at 2:16
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How are the points in CSS specificity calculated
...ase is.
It turns out that the "very large base" employed (at least by the 4 most commonly-used browsers*) to implement this standard algorithm is 256 or 28.
What this means is that a style specified with 0 ids and 256 class-names will over-ride a style specified with just 1 id. I tested this out...
Converting RGB to grayscale/intensity
...ls R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140.
8 Answers
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What is the difference between an expression and a statement in Python?
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14 Answers
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An efficient compression algorithm for short text strings [closed]
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answered Jul 16 '09 at 15:46
stvchustvchu
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Python: split a list based on a condition?
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Where to find the win32api module for Python? [closed]
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4 Answers
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