Qualified Answers That Reflect User Needs and Preferences

Summary: Formalizes user needs and preferences via a lattice of domain-independent values with domain-specific constraints, automatically embedded into relational and deductive databases as annotated. Query answering operates on the annotated database, producing answers at multiple preference levels; preferences can be changed without editing data, enabling scalable handling of large DNA data. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 8393
Venue: VLDB
Year: 1994
Pagerank: 6.1835054e-05
Overall Rank: 5,532 | 62.05%
DOI: -

Incoming Non-self Citations Over Time

Authors

1. Terry Gaasterland (Argonne National Laboratory)
2. Jorge Lobo (University of Illinois Chicago)

BibTeX Citation

@article{gaasterland_vldb94,
        title = {{Qualified Answers That Reflect User Needs and Preferences}},
        author = {Gaasterland, Terry and Lobo, Jorge},
        journal = {PVLDB},
        series = {{VLDB} '94},
        pages = {309},
        year = {1994}
}

Incoming Citations (Sorted by Pagerank)

Showing 1 of 1 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
656	Foundations of Preferences in Database Systems	2002	VLDB	0.00015258172

Outgoing Citations (Sorted by Pagerank)

Showing 1 of 1 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
1,522	Unfounded Sets and Well-Founded Semantics for General Logic Programs	1988	PODS	0.00010502706

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4	8,745	Querying Probabilistic Preferences in Databases	2017	PODS
5	1,725	Addressing Diverse User Preferences in SQL-Query-Result Navigation	2007	SIGMOD
6	2,500	Querying Database Knowledge	1990	SIGMOD
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8	11,701	Preference Queries over Taxonomic Domains	2021	VLDB
9	656	Foundations of Preferences in Database Systems	2002	VLDB
10	5,256	Preferences: Putting More Knowledge into Queries	1987	VLDB