大约有 40,000 项符合查询结果(耗时:0.0359秒) [XML]

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Why do we have to normalize the input for an artificial neural network?

... Nice hint about normalizing upon the previous set of inputs. This relieves the user from defining an arbitrary normalization factor. However I suspect the net will train more accurately if the normalization factor is a global constant applied to each input vector. ...
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What are the most common non-BMP Unicode characters in actual use? [closed]

..., ranges outside the BMP (Basic Multilingual Plane) are the most common so far? These are the ones which require 4 bytes in UTF-8 or surrogates in UTF-16. ...
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How can I load an object into a variable name that I specify from an R data file?

When you save a variable in an R data file using save , it is saved under whatever name it had in the session that saved it. When I later go to load it from another session, it is loaded with the same name, which the loading script cannot possibly know. This name could overwrite an existing variabl...
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How do I assign an alias to a function name in C++?

... Excellent, how about C++98? I have a class w/2 "reset" overloads used to set & reset. Internally, no problem. For external users I wanted to alias as "set" so it's intuitive for context (set a default-constructed, clear()'d etc.; reset working object). Class methods: (1...
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Is there a function in python to split a word into a list? [duplicate]

Is there a function in python to split a word into a list of single letters? e.g: 7 Answers ...
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SVN command to delete all locally missing files

...outputs of the following commands to svn rm for all missing files. You can set the current working directory to the appropriate directory or subdirectory before running these - dependent on whether you want to run this your entire working copy, or only a subset. Run an svn status Search for lines ...
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Checkout old commit and make it a new commit [duplicate]

...commits, and I want to make the version 3 commits ago as the new version. If I do git checkout xxxx , it creates a new branch and it seems like I can only merge it? Could I make this the new "master version"? ...
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Is it possible to do a sparse checkout without checking out the whole repository first?

...sparse-checkout init --cone # to fetch only root files git sparse-checkout set apps/my_app libs/my_lib # etc, to list sub-folders to checkout # they are checked out immediately after this command, no need to run git pull Note that it requires git version 2.25 installed. Read more about it here: ht...
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What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?

...ere is another case: ${var:?}, which will provide error when variable is unset or not set. REF: github.com/koalaman/shellcheck/wiki/SC2154 – Nam Nguyen Apr 7 '15 at 4:32 ...
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How to get the start time of a long-running Linux process?

Is it possible to get the start time of an old running process? It seems that ps will report the date (not the time) if it wasn't started today, and only the year if it wasn't started this year. Is the precision lost forever for old processes? ...