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» Optimization of multi-domain queries on the web
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SEBD
2007
148views Database» more  SEBD 2007»
13 years 10 months ago
Containment of Conjunctive Object Meta-Queries
We consider the problem of query containment over an object data model derived from F-logic. F-logic has generated considerable interest commercially, in the academia, and within ...
Andrea Calì, Michael Kifer
ER
2010
Springer
164views Database» more  ER 2010»
13 years 6 months ago
Querying Databases with Taxonomies
Traditional information search in which queries are posed against a known and rigid schema over a structured database is shifting towards a Web scenario in which exposed schemas ar...
Davide Martinenghi, Riccardo Torlone
ICDE
2005
IEEE
128views Database» more  ICDE 2005»
14 years 10 months ago
Exploiting Correlated Attributes in Acquisitional Query Processing
Sensor networks and other distributed information systems (such as the Web) must frequently access data that has a high per-attribute acquisition cost, in terms of energy, latency...
Amol Deshpande, Carlos Guestrin, Wei Hong, Samuel ...
SIGMOD
2010
ACM
232views Database» more  SIGMOD 2010»
13 years 9 months ago
Optimizing content freshness of relations extracted from the web using keyword search
An increasing number of applications operate on data obtained from the Web. These applications typically maintain local copies of the web data to avoid network latency in data acc...
Mohan Yang, Haixun Wang, Lipyeow Lim, Min Wang
TREC
2004
13 years 10 months ago
University of Glasgow at TREC 2004: Experiments in Web, Robust, and Terabyte Tracks with Terrier
With our participation in TREC2004, we test Terrier, a modular and scalable Information Retrieval framework, in three tracks. For the mixed query task of the Web track, we employ ...
Vassilis Plachouras, Ben He, Iadh Ounis