LICO: An SIMD-Aware High-Performance Learned Inverted Index Compression Framework

Summary: LICO is an SIMD-aware learned inverted-index compressor using error-bounded models plus residuals for lossless decoding. It automatically adapts to distributions, provides theoretical compression guarantees, and achieves Pareto-optimal size/latency versus classical and learned schemes. (summarized by gpt-5.6-luna on Jul 26 2026)

Paper ID: 7452
Venue: SIGMOD
Year: 2026
Pagerank: 5.093636e-05
Overall Rank: 10,261 | 29.61%
DOI: 10.1145/3802079

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Authors

1. Xianyu Zhu (Renmin University of China)
2. Qiyu Liu (Southwest University)
3. Guangyi Zhang (Shenzhen University)
4. Zhibing Sha (Southwest University)
5. Jianwei Liao (Southwest University)
6. Sha Hu (Southwest University)
7. Lei Chen (Hong Kong University of Science and Technology)

BibTeX Citation

@inproceedings{zhu_sigmod26,
        title = {{LICO: An SIMD-Aware High-Performance Learned Inverted Index Compression Framework}},
        author = {Zhu, Xianyu and Liu, Qiyu and Zhang, Guangyi and Sha, Zhibing and Liao, Jianwei and Hu, Sha and Chen, Lei},
        series = {{SIGMOD} '26},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3802079},
        url = {https://dl.acm.org/doi/10.1145/3802079},
        year = {2026}
}

Incoming Citations (Sorted by Pagerank)

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Rank	Citing Paper	Year	Venue	Pagerank

Outgoing Citations (Sorted by Pagerank)

Showing 12 of 12 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
43	The Case for Learned Index Structures	2018	SIGMOD	0.00046060254
447	ALEX: An Updatable Adaptive Learned Index	2020	SIGMOD	0.00018322593
477	The PGM-index: a fully-dynamic compressed learned index with provable worst-case bounds	2020	VLDB	0.00017851226
1,551	Updatable Learned Index with Precise Positions	2021	VLDB	0.00010381398
1,655	Efficient Parallel Lists Intersection and Index Compression Algorithms using Graphics Processing Units	2011	VLDB	0.00010103504
1,688	Online Piece-wise Linear Approximation of Numerical Streams with Precision Guarantees	2009	VLDB	0.00010003536
2,233	FINEdex: A Fine-grained Learned Index Scheme for Scalable and Concurrent Memory Systems	2022	VLDB	8.8968964e-05
2,806	Are Updatable Learned Indexes Ready?	2022	VLDB	8.1013097e-05
4,065	LeCo: Lightweight Compression via Learning Serial Correlations	2024	SIGMOD	6.930275e-05
4,073	Stable Learned Bloom Filters for Data Streams	2020	VLDB	6.9242783e-05
8,709	Why Are Learned Indexes So Effective but Sometimes Ineffective?	2025	VLDB	5.3789739e-05
8,791	HAP: An Efficient Hamming Space Index Based on Augmented Pigeonhole Principle	2022	SIGMOD	5.3717005e-05

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