'Probability coding' presentation slideshows

15-583:Algorithms in the Real World

15-583:Algorithms in the Real World. Data Compression I Introduction Information Theory Probability Coding. Compression in the Real World. Generic File Compression files: gzip (LZ77), bzip (Burrows-Wheeler), BOA (PPM) archivers: ARC (LZW), PKZip (LZW+) file systems: NTFS Communication

332 views • 33 slides

15-499:Algorithms and Applications

616 views • 31 slides

CPS 296.3:Algorithms in the Real World

457 views • 24 slides

CPS 296.3:Algorithms in the Real World

393 views • 24 slides

CPS 296.3:Algorithms in the Real World

249 views • 24 slides

CPS 296.3:Algorithms in the Real World

CPS 296.3:Algorithms in the Real World. Data Compression: Lecture 2.5. Summary so far. Model generates probabilities, Coder uses them Probabilities are related to information . The more you know, the less info a message will give.

361 views • 22 slides

CPS 296.3:Algorithms in the Real World

CPS 296.3:Algorithms in the Real World. Data Compression: Lecture 2.5. Summary so far. Model generates probabilities, Coder uses them Probabilities are related to information . The more you know, the less info a message will give.

341 views • 22 slides

Forward Error Correction

Forward Error Correction . FEC Basic Idea. Send redundant data Receiver uses it to detect/correct errors Reduces retransmissions/ NAKs Useful when RTT is high. Types of FEC . Two types of FEC Block codes (works on blocks/packets) Hamming codes, Reed-Solomon codes

720 views • 10 slides