X3: Lossless Data Compressor
This is an incremental improvement in data compression tools for general users, offering competitive performance with existing methods.
The authors tackled lossless data compression by developing X3, a dictionary-based compressor that combines dictionary, context modeling, and arithmetic coding with optimization for file-specific parameters, achieving compression ratios comparable to top methods like LZMA, zstd, and Brotli.
X3 is a lossless optimizing dictionary-based data compressor. The algorithm uses a combination of a dictionary, context modeling, and arithmetic coding. Optimization adds the ability to find the most appropriate parameters for each file. Even without optimization, x3 can compress data with a compression ratio comparable to the best dictionary compression methods like LZMA, zstd, or Brotli.