Stochastic Data Acquisition for Answering Queries as Time Goes by

Summary: Sequential decision making: when to acquire data vs reuse stale results to answer time-evolving queries under costs. Proposes RL and tailored locality-sensitive hashing; experiments on two real datasets show effective cost–accuracy trade-offs. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 11714
Venue: VLDB
Year: 2017
Pagerank: 5.292145e-05
Overall Rank: 9,184 | 37.21%
DOI: 10.14778/3021924.3021933

Incoming Non-self Citations Over Time

Authors

1. Zheng Li (University of Massachusetts Lowell)
2. Tingjian Ge (University of Massachusetts Lowell)

BibTeX Citation

@article{li_vldb17,
        title = {{Stochastic Data Acquisition for Answering Queries as Time Goes by}},
        author = {Li, Zheng and Ge, Tingjian},
        journal = {PVLDB},
        series = {{VLDB} '17},
        volume = {10},
        number = {3},
        pages = {277--288},
        doi = {10.14778/3021924.3021933},
        url = {https://doi.org/10.14778/3021924.3021933},
        year = {2017}
}

Incoming Citations (Sorted by Pagerank)

Showing 1 of 1 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
9,293	Cost-efficient Data Acquisition on Online Data Marketplaces for Correlation Analysis	2019	VLDB	5.2755021e-05

Outgoing Citations (Sorted by Pagerank)

Showing 5 of 5 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
337	Model-Driven Data Acquisition in Sensor Networks	2004	VLDB	0.00020720366
649	Adaptive Precision Setting for Cached Approximate Values	2001	SIGMOD	0.00015275606
2,704	Toward Practical Query Pricing with QueryMarket	2013	SIGMOD	8.2175168e-05
5,184	Determining the Currency of Data	2011	PODS	6.3132218e-05
5,506	Challenges and Opportunities with Big Data	2012	VLDB	6.1798753e-05

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