Lempel-Ziv
LZ77 and LZ78 are the two lossless data compression algorithms published in papers by Abraham Lempel and Jacob Ziv in 1977 and 1978. They are also known as LZ1 and LZ2 respectively. These two algorithms form the basis for many variations including LZW, LZSS, LZMA and others. Besides their academic influence, these algorithms formed the basis of several ubiquitous compression schemes, including GIF and the DEFLATE algorithm used in PNG.
They are both theoretically dictionary coders. LZ77 maintains a sliding window during compression. This was later shown to be equivalent to the explicit dictionary constructed by LZ78—however, they are only equivalent when the entire data is intended to be decompressed. LZ78 decompression allows random access to the input as long as the entire dictionary is available,[dubious – discuss] while LZ77 decompression must always start at the beginning of the input.
The algorithms were named an IEEE Milestone in 2004.

This is an excerpt from the article Lempel-Ziv from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article Lempel-Ziv at en.wikipedia.org was accessed 327 times in the last 30 days. (as of: 07/23/2014)
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Data Compression -- Section 5 - UCI
Data Compression 5. OTHER ADAPTIVE METHODS. Two more adaptive data compression methods, algorithm BSTW and Lempel-Ziv coding, are discussed in this section.
www.ics.uci.edu/~dan/pubs/DC-Sec5.html
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Lempel–Ziv–Welch - Wikipedia, the free encyclopedia
Lempel–Ziv–Welch (LZW) is a universal lossless data compression algorithm created by Abraham Lempel, Jacob Ziv, and Terry Welch. It was published by ...
en.wikipedia.org/wiki/Lempel%E2%80%93Ziv%E2%80%93Welch
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LZ77 and LZ78 - Wikipedia, the free encyclopedia
LZ77 and LZ78 are the two lossless data compression algorithms published in papers by Abraham Lempel and Jacob Ziv in 1977 and 1978. They are also ...
en.wikipedia.org/wiki/LZ77_and_LZ78
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Tanya (lempelziv) on Twitter
The latest from Tanya (@lempelziv). professional nerd. cupcake aficionado. cheap wine enthusiast. canadian. yer face (also, Seattle)
twitter.com/lempelziv
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Animation of Lempel-Ziv Encoding Algorithm - Data-Compression.com
Animation of Lempel-Ziv Encoding Algorithm. Encoding Algorithm. Initialize the dictionary to contain all blocks of length one (D={a,b}). Search for the longest ...
www.data-compression.com/lempelziv.html
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Interactive LZW Compression
Background: LZW compression has its roots in the work of Jacob Ziv and Abraham Lempel. In 1977, they published a paper on "sliding-window" compression, ...
www.cs.sfu.ca/CC/365/li/squeeze/LZW.html
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Lempel-Ziv Coding
Lempel-Ziv Coding. Prof. Ja-Ling Wu. Department of Computer Science and Information Engineering. National Taiwan University ...
www.cmlab.csie.ntu.edu.tw/~itct/slide/Data_Compression_Lempel-Ziv_Coding.pdf
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Lempel-Ziv - MIT Mathematics
Thinking back over the lecture on Lempel Ziv, I realize that there was no real need for ... part of the remarkable theorem that Lempel Ziv gives asymptotically op-.
www-math.mit.edu/~shor/PAM/lempel_ziv_notes.pdf
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Lempel-Ziv-Welch - Princeton University
Lempel–Ziv–Welch (LZW) is a universal lossless data compression algorithm created by Abraham Lempel, Jacob Ziv, and Terry Welch. It was published by ...
www.princeton.edu/~achaney/tmve/wiki100k/docs/Lempel-Ziv-Welch.html
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Lempel-Ziv-Welch (LZW) Algorithm
Lempel-Ziv-Welch (LZW) Algorithm. The LZW algorithm is a very common compression technique. Suppose we want to encode the Oxford Concise English  ...
www.cs.cf.ac.uk/Dave/Multimedia/node214.html
Search results for "Lempel-Ziv"
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Lempel-Ziv in science
Lempel-Ziv-Welch - Princeton University
Lempel–Ziv–Welch (LZW) is a universal lossless data compression algorithm created by Abraham Lempel, Jacob Ziv, and Terry Welch. It was published by ...
Optimized Relative Lempel-Ziv Compression of Genomes - The ...
Optimized Relative Lempel-Ziv Compression of Genomes Full Written Papers Refereed uri icon. Overview; Time; Identity; Additional Document Info; Other.
On Lempel-Ziv Complexity of Sequences - Springer
On Lempel-Ziv Complexity of Sequences. Ali Doğanaksoy ... Department of Electrical and Computer Engineering, University of Waterloo; 17. Department of ...
[PDF]Practical Parallel Lempel-Ziv Factorization - School of Computer ...
work-efficient parallel algorithm for Lempel-Ziv factorization. ... of this work was done while author was an undergraduate student at Central South University.
[PDF]On Lempel-Ziv Complexity of Sequences
1 Department of Mathematics, Middle East Technical University. Ankara ... Lempel-. Ziv complexity of a sequence was defined by Lempel and Ziv in 1976. [1 ].
[PDF]Interpretation of the Lempel-Ziv Complexity Measure ... - Mateo Aboy
I. INTRODUCTION. THE metric of complexity proposed by Lempel and Ziv (LZ) ... Theory and Communications, ETSIT, University of Valladolid, Valladolid.
[PDF]Asymptotic Behavior of the Lempel-Ziv Parsing ... - Purdue e-Pubs
Asymptotic Behavior of the Lempel-Ziv Parsing. Scheme and Digital Search Trees. Philippe Jaquet. Wojciech Szpankowski. Purdue University, spa@cs. purdue.
[PDF]On the Average Redundancy Rate of the Lempel-Ziv Code
Jul 14, 1995 ... Purdue University. W. Lafayette, IN 47907. U.S.A.. It was conjectured that the average redundancy rate, Tnl for the Lempel-Ziv code (LZ78).
Interpretation of coarse-graining of Lempel-Ziv complexity measure ...
Department of Electrical and Computer Engineering, Dalhousie University, ... Lempel-Ziv (LZ) complexity measure has been applied to classify ventricular ...
Books on the term Lempel-Ziv
INFORMATION TECHNOLOGY: PRINCIPLES AND APPLICATIONS
INFORMATION TECHNOLOGY: PRINCIPLES AND APPLICATIONS
AJOY KUMAR RAY, TINKU ACHARYA, 2004
Most of the popular dynamic dictionary coding techniques have been defined based on a family of algorithms called the Ziv-Lempel family or Lempel-Ziv (LZ) family—LZ77 [5], LZ78 [6], LZSS [7], LZW [8], LZC [2], LZWAJ [9], etc. For example  ...
Elements of Information Theory 2nd Edition (Wiley Series in Telecommunications and Signal Processing)
Elements of Information Theory 2nd Edition (Wiley Series in Telecommunications and Signal Processing)
Thomas M. Cover and Joy A. Thomas, 2006
The latest edition of this classic is updated with new problem sets and materialThe Second Edition of this fundamental textbook maintains the book's tradition of clear, thought-provoking instruction. Readers are provided once again with an instructive mix of mathematics, physics, statistics, and information theory.All the essential topics in i...
Information Theory, Inference and Learning Algorithms
Information Theory, Inference and Learning Algorithms
David J. C. MacKay, 2003
Information theory and inference, often taught separately, are here united in one entertaining textbook. These topics lie at the heart of many exciting areas of contemporary science and engineering - communication, signal processing, data mining, machine learning, pattern recognition, computational neuroscience, bioinformatics, and cryptography. Th...
Dig Communication
Dig Communication
Bhattacharya, 2005
In this case, one should note that for a 1 8 bit long sequence, Lempel-Ziv coding produced a 32 bit long coded sequence. So, the source coder instead of compression, produced expansion! However, reason for this fallacy is that the input ...
The Geometry of Musical Rhythm: What Makes a "Good" Rhythm Good?
The Geometry of Musical Rhythm: What Makes a "Good" Rhythm Good?
Godfried T. Toussaint, 2013
The Geometry of Musical Rhythm: What Makes a "Good" Rhythm Good? is the first book to provide a systematic and accessible computational geometric analysis of the musical rhythms of the world. It explains how the study of the mathematical properties of musical rhythm generates common mathematical problems that arise in a variety of seeming...
JPEG2000 Standard for Image Compression: Concepts, ...
JPEG2000 Standard for Image Compression: Concepts, ...
Tinku Acharya, Ping-Sing Tsai, 2005
2.5 ZIV-LEMPEL CODING Dictionary-based coding techniques are often used for data compression. Most of the popular text compression algorithms use the dictionary-based coding approach. In dictionary coding, groups of consecutive input ...
Mastering Algorithms with C
Mastering Algorithms with C
Kyle Loudon, 1999
There are many books on data structures and algorithms, including some with useful libraries of C functions. Mastering Algorithms with C offers you a unique combination of theoretical background and working code. With robust solutions for everyday programming tasks, this book avoids the abstract style of most classic data structures and algorithms ...
The Telecommunications Illustrated Dictionary, Second Edition
The Telecommunications Illustrated Dictionary, Second Edition
J.K. Petersen, 2012
The system includes a setup server and an associated database, application servers, clients and optional security services. L2F has been cleared for open source distribution. Lempel-Ziv LZ. A pair of coding compression formats described in ...
Apache Accumulo for Developers
Apache Accumulo for Developers
Guðmundur Jón Halldórsson, 2013
Guðmundur Jón Halldórsson Guðmundur Jón Halldórsson is a Software Engineer who enjoys the challenges of complex problems and pays close attention to detail. He is an annual speaker at the Icelandic Computer Society (SKY, http://www.utmessan.is/). Guðmundur is a Software Engineer with extensive experience and management skills, and works for Five De...
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Blog posts on the term
Lempel-Ziv
Why does Huffman coding eliminate entropy that Lempel-Ziv doesn't? | Question and Answer
The popular DEFLATE algorithm uses Huffman coding on top of Lempel-Ziv. In general, if we have a random source of data (= 1 bit entropy/bit), no
qandasys.info/why-does-huffman-coding-eliminate-entropy-that-lempel-ziv-doesnt-5/
Milestones:Lempel-Ziv Data Compression Algorithm, 1977 - GHN: IEEE Global History Network
www.ieeeghn.org/wiki/index.php/Milestones:Lempel-Ziv_Data_Compression_Algorithm,_1977
Simple Lempel-Ziv Compression in Erlang – Good Math, Bad Math
scienceblogs.com/goodmath/2008/01/07/simple-lempelziv-compression-i/
Algorithms | Free Full-Text | Lempel–Ziv Data Compression on Parallel and Distributed Systems
We present a survey of results concerning Lempel–Ziv data compression on parallel and distributed systems, starting from the theoretical approach to parallel time complexity to conclude with the practical goal of designing distributed algorithms with low communication cost. Storer’s extension for image compression is also discussed.
www.mdpi.com/1999-4893/4/3/183
Security Now 205 | TWiT.TV
An examination of Lempel-Ziv data compression, one of the most prevalent computer algorithms of all time.
twit.tv/sn205
Lempel Ziv algorithm - Newsreader - MATLAB Central
File exchange, MATLAB Answers, newsgroup access, Links, and Blogs for the MATLAB & Simulink user community
mathworks.co.uk/matlabcentral/newsreader/view_thread/245093
Lempel-Ziv-Storer-Szymanski (LZSS) | coolworkspace
Introduction Lempel-Ziv-Storer-Szymanski (LZSS) is a lossless data compression algorithm, a derivative of LZ77, that was created in 1982 by James Storer and Thomas Szymanski. LZSS was described in article "Data compression via textual substitution" published in Journal of the ACM (pp. 928-951). LZSS is a dictionary encoding technique. Unlike Huffman coding, which attempts to reduce…
coolworkspace.wordpress.com/2012/02/01/lempel-ziv-storer-szymanski-lzss/
La compression sans perte : exemple de codage LZW | compresser decompresser ses données
blog.univ-angers.fr/compressiondecompression/2013/12/03/la-compression-sans-perte-exemple-de-codage-lzw/
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