大约有 47,000 项符合查询结果(耗时:0.0334秒) [XML]

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What is the role of the bias in neural networks? [closed]

I'm aware of the gradient descent and the back-propagation algorithm. What I don't get is: when is using a bias important and how do you use it? ...
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How can I split and parse a string in Python?

I am trying to split this string in python: 2.7.0_bf4fda703454 3 Answers 3 ...
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How to get the first column of a pandas DataFrame as a Series?

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How to center align the cells of a UICollectionView?

I am currently using UICollectionView for the user interface grid, and it works fine. However, I'd like to be enable horizontal scrolling. The grid supports 8 items per page and when the total number of items are, say 4, this is how the items should be arranged with horizontal scroll direction ena...
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Can someone give an example of cosine similarity, in a very simple, graphical way?

Cosine Similarity article on Wikipedia 10 Answers 10 ...
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How to go about formatting 1200 to 1.2k in java

I'd like to format following numbers into the numbers next to them with java: 23 Answers ...
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ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)

I use the following command: 15 Answers 15 ...
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Python: Tuples/dictionaries as keys, select, sort

Suppose I have quantities of fruits of different colors, e.g., 24 blue bananas, 12 green apples, 0 blue strawberries and so on. I'd like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g., ...
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What is the “-->” operator in C++?

After reading Hidden Features and Dark Corners of C++/STL on comp.lang.c++.moderated , I was completely surprised that the following snippet compiled and worked in both Visual Studio 2008 and G++ 4.4. ...
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JavaScript + Unicode regexes

How can I use Unicode-aware regular expressions in JavaScript? 11 Answers 11 ...