digplanet beta 1: Athena
Share digplanet:


Applied sciences






















Abraham Lempel
Abraham Lempel.JPG
Abraham Lempel in 2007
Born (1936-02-10) 10 February 1936 (age 80)
Lwów, Poland (now Lviv, Ukraine)
Residence Israel
Fields Information theory
Institutions Technion - Israel Institute of Technology
Known for LZ77, LZ78
Notable awards Paris Kanellakis Award (1997)
IEEE Richard W. Hamming Medal (2007)

Abraham Lempel (Hebrew: אברהם למפל‎‎, born 10 February 1936) is an Israeli computer scientist and one of the fathers of the LZ family of lossless data compression algorithms.


Lempel was born on 10 February 1936 in Lwów, Poland (now Lviv, Ukraine).[1] He studied at Technion - Israel Institute of Technology, and received a B.Sc. in 1963, M.Sc. in 1965, and D.Sc. in 1967. Since 1977 he has held the title of full professor. Lempel is now a professor emeritus in Technion.

His historically important works start with the presentation of the LZ77 algorithm in a paper entitled "A Universal Algorithm for Sequential Data Compression" in the IEEE Transactions on Information Theory (May 1977), co-authored by Jacob Ziv.

He is the recipient of the 1998 Golden Jubilee Award for Technological Innovation from the IEEE Information Theory Society;[2] and the 2007 IEEE Richard W. Hamming Medal, for "pioneering work in data compression, especially the Lempel-Ziv algorithm".[3]

Lempel founded HP Labs—Israel in 1994, and served as its director until October 2007.


The LZ77 and LZ78 algorithms authored by Lempel and Jacob Ziv have led to a number of derivative works, including the Lempel–Ziv–Welch algorithm, used in the GIF image format, and the Lempel-Ziv-Markov chain algorithm, used in the 7-Zip and xz compressors. The algorithms have also been used as originally published in formats such as DEFLATE, used in the PNG image format.


See also[edit]


External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Abraham_Lempel — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
8 videos found

Método de Compresión Lempel-Ziv

The LZ77 Compression Family (Ep 2, Compressor Head)

The LZ77 Compression Family from the late 70s have become the most dominant dictionary encoding schemes in compression. Colt McAnlis walks us through ...

Lingua Antiqua - Nomina (RMX) [berühmte Personen, Studentenrapper, intelligenter Rap]

Text: (Anes Anubis) Giuseppe Verdi schrieb die Oper Aida. Ihr wollet batteln, doch ich lächle bloß wie die Mona Lisa. Sehet, ich gebe 'nen Fick auf Kopernikus, ...

BMOREhush - SOFT CAT @ The Baltimore Folk Festival 2013 - "All I Can See" - THE WINDUP SPACE

Only Positive Thoughts Allowed?? - Stop Limiting Yourself

Niggun Shamiel at Spiritgrow - Chai

Spiritgrow Josef Kryss Center presents ZOHAR Soiree of 5 inspired by Lag BaOmer 9th May 2012 Tony Hicks - bass clarinet, soprano sax, alto flute Alex Burkoy ...

Facsimile specialist Adam Lowe in Madrid | euromaxx

Adam Lowe is an artist who has taken full advantage of the digital age and most famously reproduces old masters in faultless copies. He is commissioned by ...

Noaj 5776

Muchos preguntan: ¿"Que podemos hacer para apoyar al pueblo de Israel durante este tiempo dificil"? La respuesta esta en este shiur... Un estudio en español ...

8 videos found

We're sorry, but there's no news about "Abraham Lempel" right now.


Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight