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SWIX: A Memory-efficient Sliding Window Learned Index

Summary: SWIX is a memory-efficient, flat learned index for sliding-window streams, replacing tree-based indexes to reduce memory while preserving fast query times. It adapts to real-time distribution shifts and, for concurrent workloads, delivers up to 3.45× throughput with 34% of the memory, outperforming state-of-the-art approaches (22–42% footprint; up to 1.6× faster). (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
6912
Venue
SIGMOD
Year
2024
Pagerank
5.1814573e-05
Overall Rank
9,998 | 31.41%
DOI
10.1145/3639296

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{liang_sigmod24,
        title = {{SWIX: A Memory-efficient Sliding Window Learned Index}},
        author = {Liang, Liang and Yang, Guang and Hadian, Ali and Croquevielle, Luis Alberto and Heinis, Thomas},
        series = {{SIGMOD} '24},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3639296},
        url = {https://dl.acm.org/doi/10.1145/3639296},
        year = {2024}
}

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