Top "Data-compression" questions

The name given to the process of encoding data such that it uses lesser number of bits as compared to the original representation.

How to read data from a zip file without having to unzip the entire file

Is there anyway in .Net (C#) to extract data from a zip file without decompressing the complete file? Simply I …

c# compression zip data-compression
What is the computer science definition of entropy?

I've recently started a course on data compression at my university. However, I find the use of the term "entropy" …

computer-science information-theory entropy data-compression
How do I compute the approximate entropy of a bit string?

Is there a standard way to do this? Googling -- "approximate entropy" bits -- uncovers multiple academic papers but I'd …

encryption entropy information-theory data-compression
Is there a practical way to compress NSData?

I haven't seen any documentation on the topic, but that doesn't mean it doesn't exist.

ios nsdata data-compression
Any theoretical limit to compression?

Imagine that you had all the supercomputers in the world at your disposal for the next 10 years. Your task was …

information-theory data-compression compression
Which Data compression algorithm has been used in WinRar?

Which compression algorithm is used in WinRar? I am working on file compression techniques. So which algorithm will be best …

algorithm audio video data-compression lossless-compression