Versions tested: | 0.5, 0.5light |
Optimal parameters: | - |
Links: | http://compression.r... |
Authors: | Dmitry Shkarin |
Algorithms: | PPMII |
Notable peformances: | - |
The following quote from the program documentation gives idea what the program consists of.
- -t1 - segmentation of file (default: (5,(0-3)));
-t1[(k[,(b1-t1)[,...]])]
k - precision of segmentation;
(b1-t1) - apply trick number t1 to block number b1;
(0-t1) - apply trick number t1 to all blocks;- -t2 - text tricks;
-t2[(k)]
k - method number (default: 31);
Methods:
- 0 - none;
- 1 - capital conversion;
- 2 - tiny dictionary;
- 3 - pre-built model (.MDL files are required);
Flags:
- 4 - punctuation marks modeling;
- 8 - spaces modeling;
- 16 - EOLs modeling;
- -t3 - IA-16/32 executables tricks;
- -t4 - delta filter;
(Have info that should be added here? E-mail.)
Light version disqualified. The light version crashes or reports out of memory on compressing Application1. Apparently the program tries to load the entire source files into memory before compression. Tested without the pre-build model.
Ver | Rating | CPR | DPR | S.E. | R.E. | Ratio | C. kB/s | D. kB/s | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
-m384 -o8 | ||||||||||||
0.5 | crash while compressing (app1) | |||||||||||
-m385 -o8 | ||||||||||||
0.5light | crash while compressing (app1) |