大约有 43,000 项符合查询结果(耗时:0.0555秒) [XML]

https://stackoverflow.com/ques... 

What is the difference between lemmatization vs stemming?

...o incorrect meanings and spelling. Lemmatization considers the context and converts the word to its meaningful base form, which is called Lemma. Sometimes, the same word can have multiple different Lemmas. We should identify the Part of Speech (POS) tag for the word in that specific context. Here a...
https://stackoverflow.com/ques... 

Using smart pointers for class members

I'm having trouble understanding the usage of smart pointers as class members in C++11. I have read a lot about smart pointers and I think I do understand how unique_ptr and shared_ptr / weak_ptr work in general. What I don't understand is the real usage. It seems like everybody recommends using...
https://stackoverflow.com/ques... 

JUnit test for System.out.println()

...ld appear to be the simplest mechanism. (I would advocate, at some stage, convert the app to some logging framework - but I suspect you already are aware of this!) share | improve this answer ...
https://stackoverflow.com/ques... 

(this == null) in C#!

...primary != null && !(primary is DBNull)) return (T)Convert.ChangeType(primary, typeof(T)); else if (Default.GetType() == typeof(T)) return Default; } catch (Exception e) { throw new Exception("C:CFN.1 - " + e.Mes...
https://stackoverflow.com/ques... 

How to add an extra column to a NumPy array

... I think a more straightforward solution and faster to boot is to do the following: import numpy as np N = 10 a = np.random.rand(N,N) b = np.zeros((N,N+1)) b[:,:-1] = a And timings: In [23]: N = 10 In [24]: a = np.random.rand(N,N) In [25]: %timeit b = np.hstac...
https://stackoverflow.com/ques... 

What is the fastest way to create a checksum for large files in C#

... is that SHA256Managed reads 4096 bytes at a time (inherit from FileStream and override Read(byte[], int, int) to see how much it reads from the filestream), which is too small a buffer for disk IO. To speed things up (2 minutes for hashing 2 Gb file on my machine with SHA256, 1 minute for MD5) wra...
https://stackoverflow.com/ques... 

Why are interface variables static and final by default?

Why are interface variables static and final by default in Java? 15 Answers 15 ...
https://stackoverflow.com/ques... 

Should I initialize variable within constructor or outside constructor [duplicate]

... glance how the variable is initialized. Typically, when reading a program and coming across a variable, you'll first go to its declaration (often automatic in IDEs). With style 2, you see the default value right away. With style 1, you need to look at the constructor as well. If you have more than ...
https://stackoverflow.com/ques... 

How do you set the Content-Type header for an HttpClient request?

...ence downloading a pdf. From the phone it tried to download an HTML. After converting the extension the file was normally encoded. – Matteo Defanti Aug 22 '15 at 18:08 ...
https://stackoverflow.com/ques... 

How do I programmatically determine operating system in Java?

...ase(), which is locale sensitive. Where this matters is particularly when converting i's to lower/upper case, since in Turkey, I becomes lower case undotted i (ı), and i becomes upper case dotted i (İ). So "WINDOWS".toLowerCase().indexOf("win") will return -1 in Turkey. Always pass a locale when...