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Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
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I notice that almost all the answers here relate to the ineffectiveness of the concept of CAPTCHA, in principle - and while I very much agree with them, in fact gave a talk at OWASP a few months ago explaining just that - the question is very spe...
What does the construct x = x || y mean?
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It means the title argument is optional. So if you call the method with no arguments it will use a default value of "Error".
It's shorthand for writing:
if (!title) {
title = "Error";
}
This kind of shorthand trick with boolean expressions is common in Perl too. With the...
JavaScript - Getting HTML form values
...ns a true/false and im not sure how to determine if the function was even called. Thus you can help.
– user377419
Aug 23 '10 at 13:00
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Algorithm to detect corners of paper sheet in photo
...n are awesome, move to them as soon as possible. :D
Instead of removing small objects and or noise, lower the canny restraints, so it accepts more edges, and then find the largest closed contour (in OpenCV use findcontour() with some simple parameters, I think I used CV_RETR_LIST). might still stru...
Getting new Twitter API consumer and secret keys
...SS TOKEN.
5 years late to answer :)
Now you have these tokens which is all you need.
'oauth_access_token' => Access token
'oauth_access_token_secret' => Access token secret
'consumer_key' => API key
'consumer_secret' => API secret
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String comparison in Python: is vs. == [duplicate]
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For all built-in Python objects (like
strings, lists, dicts, functions,
etc.), if x is y, then x==y is also
True.
Not always. NaN is a counterexample. But usually, identity (is) implies equality (==). The converse is n...
Grepping a huge file (80GB) any way to speed it up?
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Here are a few options:
1) Prefix your grep command with LC_ALL=C to use the C locale instead of UTF-8.
2) Use fgrep because you're searching for a fixed string, not a regular expression.
3) Remove the -i option, if you don't need it.
So your command becomes:
LC_ALL=C fgrep -A 5 -...
Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
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@WouterLievens, overflow is normally an "unusual" condition, if not an outright error condition. It is a result of finite-precision math, which most people are not intuitively expecting to happen when they do math. In some cases, like -1 + 1, it's harmless;...
LINQ - Left Join, Group By, and Count
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.Count() will generate COUNT(*) which will count all the rows in that group, by the way.
– Mehrdad Afshari
Mar 29 '09 at 22:47
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Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
...ion function is to introduce non-linearity into the network
in turn, this allows you to model a response variable (aka target variable, class label, or score) that varies non-linearly with its explanatory variables
non-linear means that the output cannot be reproduced from a linear combination of ...