| Robert F. Rice |
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born in 1944
1971: invented Rice coding |
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| James R. Plaunt |
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born in May 1947
1971: invented Rice coding |
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| Prof. Dr. Robert E. Kahn |
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* December 23, 1938
1972: started first developments in packetized speech (for linear predictive coding (LPC)) |
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| James W. Forgie |
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birthday unknown
1972: started first developments in packetized speech (for linear predictive coding (LPC)) |
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| Dave Walden |
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birthday unknown
1972: started first developments in packetized speech (for linear predictive coding (LPC)) |
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| Aaron D. Wyner |
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* March 17, 1939 - † September 29, 1997
1974: wrote paper on source coding over simple networks |
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| Dr. Nasir Ahmed |
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born in 1940
1974: invented discrete cosine transform (DCT, lossy JPEG algorithm) |
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| T. Natarajan |
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birthday unknown
1974: invented discrete cosine transform (DCT, lossy JPEG algorithm) |
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| Prof. Jorma Rissanen |
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* October 20, 1932
1978: invented minimum description length (statistical modelling) and therefore invented arithmetic coding |
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| Prof. Glen G. Langdon |
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born in 1937, † March 11, 2014
1978: coinvented arithmetic coding |
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| Prof. Dr. Dieter Seitzer |
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born in 1933
1979: developed first signal processor for audio encoding with his team |
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| G.N.N. Martin |
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birthday unknown
1979: invented Range coding |
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| Prof. Wojciech Szpankowski |
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birthday unknown
1982: invented a method of channel switching in a computer network |
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| Markus F.X.J. Oberhumer |
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birthday unknown
1983: invented first compressor (RLE) |
|
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| Vernon D. Buerg |
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* 1947 - † December 30, 2009
1983: founded shareware as a software branch |
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| Dr. Bishnu Atal |
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* May 10, 1933
1985: invented CELP (Code Excited Linear Prediction) |
|
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| Thom Henderson |
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* December 13, 1954
1985: invented ARC format |
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| Jon Louis Bentley |
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born in February of 1953
1986: invented MTF algorithm |
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| Prof. Daniel Dominic K. Sleator |
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birthday unknown
1986: invented MTF algorithm |
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| Prof. Victor Wei Keh-Wei |
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birthday unknown
1986: invented MFT algorithm |
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| Prof. Peter Elias |
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* November 23, 1923 - † December 07, 2001
1987: paper on Interval and Recency Rank Source Coding: Two On-line Adaptive Variable-length Schemes |
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| The Fraunhofer Audio Team 1987 |
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founded in 1987
1987: invented first realtime codec of LC-ATC algorithm (for later MP3) |
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| Dipl.-Ing. Stefan Krägeloh |
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born in 1960
1987: Member of The Fraunhofer Audio Team 1987 |
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| Hartmut Schott |
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birthday unknown
1987: Member of The Fraunhofer Audio Team 1987 |
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| Dr.-Ing. Thomas Sporer |
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born in 1964
1987: Member of The Fraunhofer Audio Team 1987 |
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| Markus F.X.J. Oberhumer |
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birthday unknown
1987: invented first cmp library (BitPack) |
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| Prof. R. Nigel S. Horspool |
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birthday unknown
1987: invented Dynamic Markov Modelling |
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| Dr. Haruyasu Yoshizaki |
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birthday unknown
1988: invented LHA format |
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| Prof. Karlheinz Brandenburg |
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born in 1954
1989: finished thesis of OCF algorithm (optimum coding in the Frequency Domain) (for later MP3) |
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|
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| James Andrew Storer |
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birthday unknown
1989: improved dictionary based data compression |
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| Robert K. Jung |
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birthday unknown
1990: invented ARJ & JAR format |
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| Dr. Jürgen Herre |
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born in 1962
1991: added joint stereo mode to ASPEC algorithm (for later MP3) |
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|
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| Paul G. Howard |
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birthday unknown
1991: improved Arithmetic coder |
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|
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| Prof. Thomas M. Cover |
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* August 07, 1938 - † March 26, 2012
1991: wrote book: elements of information theory |
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| Prof. Dr. Allen Gersho |
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born in 1963
1992: wrote book 'vector quantization and signal compression' |
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|
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| Bulat Ziganshin |
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birthday unknown
1993: invented static context modelling |
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| Nicola Ferioli |
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birthday unknown
1993: released first lossless audio compressor |
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| Eugene Roshal |
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* March 10, 1972
1994: invented RAR format |
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|
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| Mark Nelson |
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birthday unknown
1995: wrote The Data Compression Book |
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| Prof. John G. Cleary |
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* October 19, 1950 – † 16 January 16, 2014
1996: paper on entropy of english using PPM-based models" |
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|
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| Marcel Lemke |
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born in 1979
1997: invented ACE format |
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|
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| Prof. John G. Cleary |
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* October 19, 1950 – † 16 January 16, 2014
1998: paper on modelling of english text |
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|
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| Markus F.X.J. Oberhumer |
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birthday unknown
1998: created free exe compressor (UPX) |
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| Dr. Stuart J. Inglis |
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born in 1978
1998: invented Textual Image Compressor (TIC98) |
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| Jørgen Ibsen |
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birthday unknown
1998: invented aPLib algorithm (LZ77) |
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| Dmitry Shkarin |
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birthday unknown
1998: invented lossless image compressor (BMF) |
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|
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| Charles Bloom |
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birthday unknown
1999: improved PPM algorithm (PPMZ) |
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| Prof. Sergio Verdú |
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birthday unknown
1999: wrote book: information theory - 50 years of discovery |
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| Ken Silverman |
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* November 01, 1975
2000: improved deflate algorithm (KZIP) |
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|
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| Ben Rudiak-Gould |
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birthday unknown
2000: invented lossless open-source video codec (HuffYUV) |
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| Darryl Lovato [SmithMicro Corp.] |
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* April 28, 1966
2000: invented ATOM/SITX format |
|
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| Edgar Binder |
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birthday unknown
2000: invented Distance coding |
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| Sami J. Makinen |
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birthday unknown
2000: improved BWT algorithm (SBC Archiver) |
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| Dr. Vadim Engelson |
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birthday unknown
2000: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (FSD) |
|
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| Dag Fritzson |
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birthday unknown
2000: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (FSD) |
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| Prof. Peter Fritzson |
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birthday unknown
2000: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (FSD) |
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| Prof. David J. Harper |
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birthday unknown
2001: introduced a novel switching method which can be used to combine two or more PPM models |
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|
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| Ken Silverman |
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* November 01, 1975
2002: created lossless .PNG optimizer (PNGOUT) |
|
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| Rainer Nausedat |
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* April 21, 1965 – † November 17, 2004
2002: invented SQX 1.x format (Squeez) |
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| Serge Osnach |
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birthday unknown
2003: improved PAQ1 by adding SSE stage between predictor and encoder |
|
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| Serge Osnach |
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birthday unknown
2003: wrote Sparse model for PAQ (PAQ3N) |
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| Dr. Matthew V. Mahoney |
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born in 1955
2003: improved PAQ: models are mixed now using adaptive rather than fixed weights (PAQ4) |
|
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| Dr. Matthew V. Mahoney |
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born in 1955
2003: improved PAQ by adding word models for text, audio and image model (PAQ5) |
|
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| Dmitry Shkarin |
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birthday unknown
2003: improved his PPMd algorithm (DURILCA) |
|
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| Frank Schwellinger |
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birthday unknown
2004: improved DMC algorithm (Ocamyd) |
|
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| Jory Stone |
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birthday unknown
2004: created lossless video codec (CorePNG) |
|
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| Dr. Dmitry S. Vatolin |
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birthday unknown
2004:created lossless video codec (MSU) |
|
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| Dmitry Popov |
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birthday unknown
2004:created lossless video codec (MSU) |
|
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| Frank Schwellinger |
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birthday unknown
2004: improved DMC algorithm (Ocamyd) |
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| Alexander Ratushnyak |
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birthday unknown
2004: wrote an x86 model for PAQ (PAQAR) |
|
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| Berto Destasio |
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birthday unknown
2004: improved PAQ6 by tuning models and adjusting the bit count discounting schedule (EmilCont) |
|
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| David Allen Scott |
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* June 27, 1946, † January 26, 2016
2004: improved PAQ algorithm by improving arithmetic coder (PAQ6) |
|
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| Fabio Buffoni |
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birthday unknown
2004: improved PAQ algorithm by making it faster (PAQ6) |
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|
|
| Rainer Nausedat |
|
* April 21, 1965 – † November 17, 2004
2004: invented SQX 2.0 format (Squeez) |
|
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| Sven Ritter |
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birthday unknown
2004: co-invented SQX 2.0 format (Squeez) |
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|
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| Ben Greenwood |
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birthday unknown
2004: created lossless open-source video codec (Lagarith) |
|
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| Serge Voskoboynikov |
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* June 13, 1977
2004: improved PPM & EOL coder (SLIM) |
|
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| Shinji Wakasugi |
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birthday unknown
2005: invented Switched Linear Prediction (SLP) |
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|
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| Yaakov Gringeler |
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birthday unknown
2005: invented lossless JPEG recompression (Stuffit 9) |
|
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| Yaakov Gringeler |
|
birthday unknown
2005: invented lossless bitmap compressor going to be used in Stuffit Image Format (SIF) |
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|
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| Dr. Matthew V. Mahoney |
|
born in 1955
2005: rewrote PAQ, now it uses neural network to combine models rather than a gradient descent mixer, it is 3x faster (PAQ7) |
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|
|
| Alexey Oraevsky (Sound Genetics, Inc.) |
 |
birthday unknown
2005: CTO & founder of lossless MP3 recompressor (SoundSlimmer) |
|
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| Dr. Dmitry S. Vatolin (Sound Genetics, Inc.) |
|
birthday unknown
2005: advisory board for lossless MP3 recompressor (SoundSlimmer) |
|
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| David Kharabadze (Sound Genetics, Inc.) |
 |
birthday unknown
2005: Chief Algorithmist for lossless MP3 recompressor (SoundSlimmer) |
|
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| Eugene Shelwien (Sound Genetics, Inc.) |
 |
birthday unknown
2005: Mathematician for lossless MP3 recompressor (SoundSlimmer) |
|
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| Alexander Zhirkov (Sound Genetics, Inc.) |
 |
birthday unknown
2005: SGT ideologist for lossless MP3 recompressor (SoundSlimmer) |
|
|
| Dr. Matthew V. Mahoney |
|
born in 1955
2006: improved PAQ7: better context map & state table and new x86 model (PAQ8) |
|
|
| Serge Osnach |
|
birthday unknown
2006: wrote a distance model for PAQ8 (PAQ8jbb) and improved sparse model (PAQ8ja) |
|
|
| Bill Pettis |
 |
* March 30, 1986
2006: improved PAQ8F text models (PAQ8J) |
|
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| Ilya Muravyov |
 |
* July 31, 1984
2006: melted & improved LZ+Ari (LZPXJ, TC) |
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|
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| Pavel L. Holoborodko |
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* February 07, 1979
2006: wrote a PGM model for PAQ8i |
|
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| Dr. Martin Burtscher |
 |
birthday unknown
2006: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (DFCM) |
|
|
| Paruj Ratanaworabhan |
 |
birthday unknown
2006: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (DFCM) |
|
|
| Dr. Peter G. Lindstrom |
 |
birthday unknown
2006: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (PLMI) |
|
|
| Dr. Martin Isenburg |
 |
birthday unknown
2006: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (PLMI) |
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|
|
| Christian Martelock |
 |
birthday unknown
2007: heavily improved CM algorithm in both speed and performance (CCM) |
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|
|
|
| Vladimir Semenyuk |
 |
birthday unknown
2007: improved Stuffit Image Format (SIF) in both speed and performance (used in Stuffit 12) |
|
|
| ? |
|
birthday unknown
2007: invented fast lossless MP3 recompressor used in Stuffit 12 |
|
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| Jan Ondrus |
 |
* May 10, 1985
2007: heavily improved PAQ8 JPEG model (PAQ8Fthis1..4) |
|
|
| Andreas Morphis |
|
birthday unknown
2007: heavily improved PAQ8 Bitmap model (PAQ8oSSE) |
|
|
| Kaido Orav |
 |
birthday unknown
2007: extended PAQ8 Bitmap filter to support 8-Bit files |
|
|
|
| Piotr Tarsa |
 |
* May 15, 1988
2007: created one of the fastest LZP+PPM compressors (TarsaLZP) |
|
|
| Oscar Garcia |
|
birthday unknown
2007: created one of the fastest LZ77 compressors (Thor) |
|
|
|
|
| Dr. Martin Burtscher |
|
birthday unknown
2007: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (FPC) |
|
|
| Paruj Ratanaworabhan |
|
birthday unknown
2007: invented lossless compressor for IEEE 754 64-bit double-precision floating-point data (FPC) |
|
|
| Matthias Stirner |
 |
* July 28, 1981
2007: created a lossless .PPM and .PGM compressor (PackPNM 0.8) |
|
|
|
| Alexander Ratushnyak |
|
birthday unknown
2007: created and improved a fast PAQ8 compressor (LPAQ) and a text preprocessor (DRT) |
|
|
|
| Piotr Tarsa |
|
* May 15, 1988
2007: improved symbol ranking algorithm (SR2 v2) |
|
|
| Ilya Muravyov |
|
* July 31, 1984
2007: invented and improved LZ77+PPM algorithm (LZPM) |
|
|
| Miroslav Linek |
|
birthday unknown
2007: created lossless open-source video codec (MLC) |
|
|
| Christopher Mattern |
 |
* March 15, 1986
2008: created fast content mixer (CMM1..CMM4) |
|
|
|
| Takeshi Umezawa |
|
birthday unknown
2008: created lossless open-source video codec based on HuffYUV (UT Video codec) |
|
|
| Christian Martelock |
|
birthday unknown
2008: created a fast and high performing ROLZ compressor (RZM) |
|
|
|
|
|
|
| Ilya Muravyov |
|
* July 31, 1984
2008: improved LZ77 algorithm (BALZ) |
|
|
| Ilya Muravyov |
|
* July 31, 1984
2008: invented new algorithm combination BWT+FCM (BCM) |
|
|
|
| Christian Martelock |
|
birthday unknown
2008: created new fast RHSO-LZ algorithm (Slug 1.27) |
|
|
| Christian Martelock |
|
birthday unknown
2008: created a fast and high performing BWT+FCM compressor (Blizzard) |
|
|
| Osman Turan |
 |
* May 26, 1985
2008: created new algorithm combination LWCX (BIT 0.2) |
|
|
|
|
|
| Sami Runsas |
|
birthday unknown
2008: invented fast and high performing LZT algorithm (NanoZip) |
|
|
| Sami Runsas |
|
birthday unknown
2008: created fast and high performing CM algorithm (NanoZip) |
|
|
| Sami Runsas |
|
birthday unknown
2008: heavily improved BWT algorithm (NanoZip) |
|
|
|
| Kaido Orav |
|
birthday unknown
2008: extended PAQ8 by improving text detection and adding UTF8 detection (PAQ8o10t) |
|
|
| Andreas Morphis |
|
birthday unknown
2008: added faster and far better WAV model & WAV detection (PAQ8p) |
|
|
|
|
|
|
| Alexey Dubrovsky |
|
birthday unknown
2008: created an impressive 7z archive optimizer (Ultra7z) |
|
|
| Jan Ondrus |
|
* May 10, 1985
2009: added MOD & S3M & AIFF detection (PAQ8PX) |
|
|
|
| Jan Ondrus |
|
* May 10, 1985
2009: improved JPEG detection and compression (PAQ8PX) |
|
|
| Jan Ondrus |
|
* May 10, 1985
2009: improved EXE detection and compression (PAQ8PX) |
|
|
| Jan Ondrus |
|
* May 10, 1985
2009: added ECM preprocessing to PAQ8 (PAQ8PX) |
|
|
|
| Ilya Muravyov |
|
* July 31, 1984
2009: for his ongoing research of BWT + FCM (BCM) |
|
|
| Siyuan Fu |
 |
birthday unknown
2009: for his works on LZ + ARI (Countryside Compressor) |
|
|
| Igor Pavlov |
|
birthday unknown
2009: created LZMA2 algorithm |
|
|
| Yann Collet |
 |
birthday unknown
2009: improved LZSS + Huff - fastest compressor ever (ZHUFF) |
|
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|
|
|
|
|
|
|
|
|
| Dr. Jyrki Alakuijala |
|
birthday unknown
2011: created lossless part of new image format (WEBP) |
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|
