SemantiPack is an application for quickly creating highly compressed archives of text-based real-world data, including CSV and JSON files.
Web:
https://semantipack.exdata.co.jp/
Paper:
https://ieeexplore.ieee.org/document/11053835
ExData, Inc.:
https://exdata.co.jp/
SemantiPack: A High-Efficiency Data Compression App for Real-World Data