...implements a "compressed model" in which the data is kept compressed in memory all the time.the program documentation
Compressed model program flow:
Compression: compression -> bwt -> compression
Decompression: decompression -> compression -> unbwt -> decompression
BWMonstr is able to perform BWT compression and decompression using about 0.5n space for English text. This is 10% of the amount that typical BWT implementations use and around 3% - 5% that of PPM or CM implementations.
The program supports multi-threading. In practice the speedup for compression translates in the following way:
2 processors: 1.57x
3 processors: 1.83x
4 processors: 2.25x
The compressor is featured in the BWT comparison.
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