Miscellany


TR1.C
 
tr1.c (included in tr1.zip) - is an implementation in C of a data source transformation method suitable for *binary* source (e.g., arithmetic) coding.
 
 
SIEVE.C
 
sieve.c - is a simple C implementation of a prime number generation method due to the mathematician Eratosthenes (200 B.C.). It can be used to "see" if an odd number is prime or composite. The size of the LZW code table employed in the *compress* program of Unix, for example, must be a prime number. 


LZUF file compressor 

Unary "folded" coding (UFC) in lzuf.c is actually a kind of Golomb-Rice coding. The put_vlcode() function in ucodes.c library can write the universal codes Elias-Gamma codes and Exponential-Golomb codes. 


Reduced Length LZ (RLLZ) 

A description of a reduced length LZ is here, which improves on LZ77/LZSS/LZW. 


Large Text Compression Benchmark

A very good source for information theory and data compression algorithms is "Data Compression Explained," an online book by Matt Mahoney. As well as the "Large Text Compression Benchmark" page. 

"There is no such thing as universal compression, recursive compression, or compression of random data." 
   -- Matt Mahoney, Data Compression Explained


Compiled Executables

Provided compiled executables (EXEs) of some of the compression source codes featured in this site. The programs are in the archive compressgt-exes.zip, and are compiled using the free Borland C++ 5.5's bcc32 compiler. Of course, you can opt to recompile using your best compiling optimization tricks. (9/2/2017) 


Data Compression Research Funding

It would be nice if I'm funded. To develop new compression algorithms. If you're interested in funding my research or *sponsoring* this compression site, please email me at compgt [at] gmail.com or geraldrtamayo (at) gmail.com. 

There are some promising new compression ideas cropping up again, but i would need some research funding this time. It will be months of recalling my best compression ideas. 

Upon funders' will, the compression programs can be open-source or closed-source. 

Discovery of a breakthrough compression algorithm will be for sale; Funders would be the first options to sell to/with. 

My Blog: (Gerald R Tamayo blog). 

Facebook: You can find me on Facebook here

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Copyright (c) 2010-2021


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LZPN.zip
(36k)
Gerald R Tamayo,
Aug 15, 2021, 2:52 PM
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Gerald R Tamayo,
Sep 26, 2018, 1:21 AM
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TheDataCompressionGuide.zip
(1556k)
Gerald R Tamayo,
Aug 15, 2021, 2:52 PM
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Gerald R Tamayo,
Aug 26, 2018, 1:07 AM
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compressgt-exes.zip
(848k)
Gerald R Tamayo,
Aug 15, 2021, 2:52 PM
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gr32.zip
(8k)
Gerald R Tamayo,
Oct 30, 2017, 5:37 AM
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lzuf_5.09.zip
(77k)
Gerald R Tamayo,
Aug 23, 2017, 1:58 AM
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sieve.zip
(1k)
Gerald R Tamayo,
Nov 8, 2014, 6:15 PM
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tr1.zip
(5k)
Gerald R Tamayo,
Jun 2, 2010, 8:50 AM
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