ALP: Adaptive Lossless floating-Point Compression
Summary: Adaptive, lossless FP compression for IEEE 754 doubles; outperforms Gorilla, PDE, Elf, Patas, and Zstd in speed and ratio. Two-stage, vectorized: enhanced PseudoDecimals encodes decimals as integers; non-decimals use front-bit vector compression on row-groups and vectors (FastLanes). (summarized by gpt-5-nano on Feb 09 2026)
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Authors
- 1. Azim Afroozeh (Centrum Wiskunde & Informatica)
- 2. Leonardo X. Kuffo (Centrum Wiskunde & Informatica)
- 3. Peter Boncz (Centrum Wiskunde & Informatica)
BibTeX Citation
@inproceedings{afroozeh_sigmod23,
title = {{ALP: Adaptive Lossless floating-Point Compression}},
author = {Afroozeh, Azim and Kuffo, Leonardo X. and Boncz, Peter},
series = {{SIGMOD} '23},
booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
publisher = {Association for Computing Machinery},
doi = {10.1145/3626717},
url = {https://dl.acm.org/doi/10.1145/3626717},
year = {2023}
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