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» A Query System in a Biological Database
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SIGMOD
2010
ACM
182views Database» more  SIGMOD 2010»
15 years 11 months ago
Query portals: dynamically generating portals for entity-oriented web queries
Many web queries seek information about named entities (such as products or people). Web search engines federate such entity-oriented queries to relevant structured databases; the...
Sanjay Agrawal, Kaushik Chakrabarti, Surajit Chaud...
ADBIS
2005
Springer
116views Database» more  ADBIS 2005»
15 years 12 months ago
A Formal Model for the Problem of View Selection for Aggregate Queries
We present a formal analysis of the following view-selection problem: Given a set of queries and a database, return definitions of views that, when materialized in the database, w...
Jingni Li, Zohreh Asgharzadeh Talebi, Rada Chirkov...
SIGMOD
2009
ACM
134views Database» more  SIGMOD 2009»
16 years 6 months ago
Keyword query cleaning using hidden Markov models
In this paper, we consider the problem of keyword query cleaning for structured databases from a probabilistic approach. Keyword query cleaning consists of rewriting the user quer...
Ken Q. Pu
PODS
2010
ACM
249views Database» more  PODS 2010»
15 years 11 months ago
Semantic query optimization in the presence of types
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
Michael Meier 0002, Michael Schmidt, Fang Wei, Geo...
CIKM
2011
Springer
14 years 6 months ago
ReDRIVE: result-driven database exploration through recommendations
Typically, users interact with database systems by formulating queries. However, many times users do not have a clear understanding of their information needs or the exact content...
Marina Drosou, Evaggelia Pitoura