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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 9 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 9 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 4 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 9 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 4 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