Approximating Opaque Top-k Queries
Summary: Approximates opaque top-k queries with a task-agnostic hierarchical index and a bandit. Histogram-based modeling targets fat tails and yields a constant-factor approximation, with up to 10× speedups over exhaustive scan. (summarized by gpt-5-nano on Feb 09 2026)
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Authors
- 1. Jiwon Chang (University of Rochester)
- 2. Fatemeh Nargesian (University of Rochester)
BibTeX Citation
@inproceedings{chang_sigmod25,
title = {{Approximating Opaque Top-k Queries}},
author = {Chang, Jiwon and Nargesian, Fatemeh},
series = {{SIGMOD} '25},
booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
publisher = {Association for Computing Machinery},
doi = {10.1145/3725266},
url = {https://dl.acm.org/doi/10.1145/3725266},
year = {2025}
}
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