Most lossless compression programs do two things in sequence: the first step generates a statistical … See more

No lossless compression algorithm can efficiently compress all possible data (see § Limitations for more on this). For this reason, many different algorithms exist that are designed either with a specific type of input data i… See more

Lossless compression algorithms and their implementations are routinely tested in head-to-head benchmarks. There are a number of better-known compression benchmarks. Some benchmarks cover only the … See more

Lossless data compression algorithms cannot guarantee compression for all input data sets. In other words, for any lossless data compression algorithm, there will be an input data set that does not get smaller when proce… See more