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How to compute the similarity between two text documents?
...common way of doing this is to transform the documents into TF-IDF vectors and then compute the cosine similarity between them. Any textbook on information retrieval (IR) covers this. See esp. Introduction to Information Retrieval, which is free and available online.
Computing Pairwise Similarities...
Possible reasons for timeout when trying to access EC2 instance
...SSH into my instance - Operation timed out. What could be the reasons why, and what can I do to resolve it? Rebooting normally takes a long time to take effect, and might just makes things worst
...
HTML/CSS: Making two floating divs the same height
...ottom padding of a large amount, bottom negative margin of the same amount and surrounding the columns with a div that has overflow hidden. Vertically centering the text is a little trickier but this should help you on the way.
#container {
overflow: hidden;
width: 100%;
}
#left-col...
Node.js or Erlang
I really like these tools when it comes to the concurrency level it can handle.
9 Answers
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Can you autoplay HTML5 videos on the iPad?
...cial docs: https://webkit.org/blog/6784/new-video-policies-for-ios/
iOS 9 and before
As of iOS 6.1, it is no longer possible to auto-play videos on the iPad.
My assumption as to why they've disabled the auto-play feature?
Well, as many device owners have data usage/bandwidth limits on their de...
What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
In Map Reduce programming the reduce phase has shuffling, sorting and reduce as its sub-parts. Sorting is a costly affair.
...
Difference between Big-O and Little-O Notation
What is the difference between Big-O notation O(n) and Little-O notation o(n) ?
4 Answers
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Storing images in SQL Server?
I have made a small demo site and on it I am storing images within a image column on the sql server. A few questions I have are...
...
What's the @ in front of a string in C#?
...string verbatim = @"foo\bar";
string regular = "foo\\bar";
Here verbatim and regular have the same contents.
It also allows multi-line contents - which can be very handy for SQL:
string select = @"
SELECT Foo
FROM Bar
WHERE Name='Baz'";
The one bit of escaping which is necessary for verbatim s...
AngularJS: How can I pass variables between controllers?
... way to share variables across multiple controllers is to create a service and inject it in any controller where you want to use it.
Simple service example:
angular.module('myApp', [])
.service('sharedProperties', function () {
var property = 'First';
return {
getP...