大约有 40,000 项符合查询结果(耗时:0.0511秒) [XML]

https://stackoverflow.com/ques... 

A simple explanation of Naive Bayes Classification

... & part two being the confusion surrounding Training set. In general all of Machine Learning Algorithms need to be trained for supervised learning tasks like classification, prediction etc. or for unsupervised learning tasks like clustering. During the training step, the algorithms are taught...
https://stackoverflow.com/ques... 

Is gcc 4.8 or earlier buggy about regular expressions?

..., it is not implemented. That prototype <regex> code was added when all of GCC's C++0x support was highly experimental, tracking early C++0x drafts and being made available for people to experiment with. That allowed people to find problems and give feedback to the standard committee before t...
https://stackoverflow.com/ques... 

Using variables inside a bash heredoc

... the lines in the here-document are not expanded. If word is unquoted, all lines of the here-document are subjected to parameter expansion, command substitution, and arithmetic expansion. [...] If you change your first example to use <<EOF instead of << "EOF" you'll find that i...
https://stackoverflow.com/ques... 

How can I read SMS messages from the device programmatically in Android?

...ForResult(intent, 1); }else { List<Sms> lst = getAllSms(); } }else { List<Sms> lst = getAllSms(); } Set app as default SMS app @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == 1...
https://stackoverflow.com/ques... 

How does deriving work in Haskell?

Algebraic Data Types (ADTs) in Haskell can automatically become instances of some typeclasse s (like Show , Eq ) by deriving from them. ...
https://stackoverflow.com/ques... 

warning about too many open figures

...the other axes untouched. plt.clf() clears the entire current figure with all its axes, but leaves the window opened, such that it may be reused for other plots. plt.close() closes a window, which will be the current window, if not specified otherwise. plt.close('all') will close all open figures....
https://stackoverflow.com/ques... 

Can I serve multiple clients using just Flask app.run() as standalone?

... need static files, no HTTP Post methods. My requirement is, I want to run all Flask threads as part of my parent app, so that they all can share variables. – ATOzTOA Feb 12 '13 at 6:03 ...
https://stackoverflow.com/ques... 

What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?

...e wchar_t is a distinct type whose values can represent distinct codes for all members of the largest extended character set specified among the supported locales (22.3.1).                                                              ...
https://stackoverflow.com/ques... 

Convert sqlalchemy row object to python dict

...of a SQLAlchemy object, like the following:: for u in session.query(User).all(): print u.__dict__ share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

What does extern inline do?

...e, static inline, and extern inline constructs; most pre-C99 compiler generally follow its lead. GNU89: inline: the function may be inlined (it's just a hint though). An out-of-line version is always emitted and externally visible. Hence you can only have such an inline defined in one compilatio...