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117
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ICDE
2010
IEEE
250views Database» more  ICDE 2010»
15 years 11 months ago
Optimized Query Evaluation Using Cooperative Sorts
— Many applications require sorting a table over multiple sort orders: generation of multiple reports from a table, evaluation of a complex query that involves multiple instances...
Yu Cao, Ramadhana Bramandia, Chee-Yong Chan, Kian-...
KCAP
2009
ACM
15 years 7 months ago
Cross ontology query answering on the semantic web: an initial evaluation
PowerAqua1 is a Question Answering system, which takes as input a natural language query and is able to return answers drawn from relevant semantic resources found anywhere on the...
Vanessa Lopez, Victoria S. Uren, Marta Sabou, Enri...
155
Voted
PODS
1998
ACM
152views Database» more  PODS 1998»
15 years 6 months ago
A Cost Model for Similarity Queries in Metric Spaces
We consider the problem of estimating CPU (distance computations) and I/O costs for processing range and k-nearest neighbors queries over metric spaces. Unlike the specific case ...
Paolo Ciaccia, Marco Patella, Pavel Zezula
123
Voted
DASFAA
2003
IEEE
99views Database» more  DASFAA 2003»
15 years 7 months ago
Scalable View Expansion in a Peer Mediator System
To integrate many data sources we use a peer mediator framework where views defined in the peers are logically composed in terms of each other. A common approach to execute queri...
Timour Katchaounov, Vanja Josifovski, Tore Risch
135
Voted
PDPTA
2003
15 years 3 months ago
An Interactive Tuning Support for Processor Allocation of Data-Driven Realtime Programs
This paper presents the effectiveness of an interactive support facility to tune processor allocation of data-driven realtime programs on CUE (Coordinating Users’ requirements an...
Yasuhiro Wabiko, Hiroaki Nishikawa