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Efficient Dynamic Weighted Set Sampling and Its Extension

Summary: Proposes BUS, a practical dynamic weighted-set sampler with O(1) amortized updates and O(log n + t) sampling time for t draws using linear space, outperforming impractical “optimal” schemes. Extends to WIRS-BUS for range sampling with O(log n) updates and O(log^2 n + t) queries; empirically fast. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
13392
Venue
VLDB
Year
2024
Pagerank
4.4853485e-05
Overall Rank
8,610 | 40.11%
DOI
10.14778/3617838.3617840

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