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How to compute the similarity between two text documents?
...idf
pairwise_similarity = tfidf * tfidf.T
or, if the documents are plain strings,
>>> corpus = ["I'd like an apple",
... "An apple a day keeps the doctor away",
... "Never compare an apple to an orange",
... "I prefer scikit-learn to Orange",
... ...
Passing an array by reference
...an be passed by reference OR by degrading to a pointer. For example, using char arr[1]; foo(char arr[])., arr degrades to a pointer; while using char arr[1]; foo(char (&arr)[1]), arr is passed as a reference. It's notable that the former form is often regarded as ill-formed since the dimension...
Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
...lso often superior to RAII when dealing with shared immutable objects like strings which often have no clear owner and require no cleanup. It's unfortunate that more frameworks don't seek to combine GC and RAII, since most applications will have a mix of immutable objects (where GC would be best) a...
How can I get a JavaScript stack trace when I throw an exception?
... function st2(f) {
return !f ? [] :
st2(f.caller).concat([f.toString().split('(')[0].substring(9) + '(' + f.arguments.join(',') + ')']);
}
return st2(arguments.callee.caller);
}
share
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...
What is the difference between an int and an Integer in Java and C#?
... Integer:
Integer i = new Integer(6);
You could call some method on i:
String s = i.toString();//sets s the string representation of i
Whereas with an int:
int i = 6;
You cannot call any methods on it, because it is simply a primitive. So:
String s = i.toString();//will not work!!!
would...
Good ways to manage a changelog using git?
... && rm -f ChangeLog.tmp; \
fi
EXTRA_DIST += .last-cl-gen
This rule is used at release time to update ChangeLog with the latest not-yet-recorded commit messages. The file .last-cl-gen contains the SHA1 identifier of the latest commit recorded in ChangeL...
Passing enum or object through an intent (the best solution)
...N 1:
public enum AwesomeEnum {
SOMETHING, OTHER;
private static final String name = AwesomeEnum.class.getName();
public void attachTo(Intent intent) {
intent.putExtra(name, ordinal());
}
public static AwesomeEnum detachFrom(Intent intent) {
if(!intent.hasExtra(name)) throw new Ill...
How to apply multiple styles in WPF
...es, my first approach was to create a constructor that takes any number of strings using the “params” keyword:
public MultiStyleExtension(params string[] inputResourceKeys)
{
}
My goal was to be able to write the inputs as follows:
<Button Style="{local:MultiStyle BigButtonStyle, GreenBut...
Java int to String - Integer.toString(i) vs new Integer(i).toString()
...
Integer.toString calls the static method in the class Integer. It does not need an instance of Integer.
If you call new Integer(i) you create an instance of type Integer, which is a full Java object encapsulating the value of your int...
Converting user input string to regular expression
...r expression tester in HTML and JavaScript. The user will enter a regex, a string, and choose the function they want to test with (e.g. search, match, replace, etc.) via radio button and the program will display the results when that function is run with the specified arguments. Naturally there will...