digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

Abraham Lempel
Abraham Lempel.JPG
Abraham Lempel in 2007
Born (1936-02-10) 10 February 1936 (age 78)
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.

Biography[edit]

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.

Works[edit]

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.

Bibliography[edit]

See also[edit]

References[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.
9 videos found

Compressor Head - Episode 2 (The LZ77 Compression Family)

In the world of compression, one algorithm family reigns supreme. Born in the late 70s, the Lempel-Ziv algorithms have become the most dominant dictionary en...

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 Koperniku...

McMechen Street (Reservoir Hill-Bolton Hill Area, Baltimore, MD) to North Monroe Street (West (...)

Watch in 720p full-screen to view map info. Visit http://www.AboutMyTrip.com for more info. - Waypoints: 0:16 Northeast Corridor 0:17 Wilson Street 0:25 Bolt...

Cantor Jacob Goldstein Ata Yotzarto Weisser- Goldstein The vilna Chazzon

Cantor Jacob Goldstein 1897-1961 Cantor Jacob Goldstein was born into a Chassidic family in Warsaw, Poland, in 1879. As a youngster he was nurtured on the me...

Avraham Fried - Didoh Bei (Acoustic Cover) Jewish Music

Do koni ma choser delo koni ma koni Zeh maamar shenemar bemaarovo Didoh bei kulo bei Deloi doh bei ma bei Zeh maamar shenemar bemaarovo Translation If one bo...

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

"All I Can See" - Softcat @ The Baltimore Folk Fest 2013 softcatbaltimore.bandcamp.com www.bmorehush.com.

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 mu...

ReservoirHill Blog2

Dr. Ed Narevicius - Weizmann Institute

Dr. Ed Narevicius, Weizmann Institute, "Moving trap decelerator: A new method for efficient atom and molecule slowing". Lecture delivered on Oct. 21, 2010 at...

 
9 videos found

1 news items

 
Computerworld
Sun, 12 Oct 2014 20:56:15 -0700

Abraham Lempel oraz Jacob Ziv pracujący w Israel Institute of Technology stworzyli algorytmy LZ1 oraz LZ2 umożliwiające bezstratną kompresję danych. W tym czasie nikomu jeszcze nawet nie marzył się Internet. Przełączanie pakietów było w powijakach, ...
Loading

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!