Скачать или смотреть Entropy in Compression - Computerphile

What's the absolute minimum you can compress data to? - Entropy conjures up visions of chemistry and physics, but how does it apply to binary codes and computer science? Professor David Brailsford continues his discussion of compression.

Addendum: the formula at 4:40 is the "weighted average bits for that state"
rather than the total number of bits - (log^2)

Original Professor Brailsford film on compression:    • Compression - Computerphile  
Professor Brailsford on Error Detection:    • Error Detection and Flipping the Bits - Co...  

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This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: http://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at:http://periodicvideos.blogspot.co.uk/...