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» Answering Imprecise Queries over Web Databases
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CVPR
2004
IEEE
14 years 11 months ago
Searching the Web with Mobile Images for Location Recognition
In this paper, we describe an approach to recognizing location from mobile devices using image-based web search. We demonstrate the usefulness of common image search metrics appli...
Tom Yeh, Konrad Tollmar, Trevor Darrell
WWW
2011
ACM
13 years 4 months ago
Rewriting queries on SPARQL views
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
Wangchao Le, Songyun Duan, Anastasios Kementsietsi...
ALT
2000
Springer
14 years 1 months ago
On the Hardness of Learning Acyclic Conjunctive Queries
A conjunctive query problem in relational database theory is a problem to determine whether or not a tuple belongs to the answer of a conjunctive query over a database. Here, a tup...
Kouichi Hirata
CSE
2009
IEEE
14 years 1 months ago
Processing Approximate Moving Range Queries in Mobile Sensor Environments
— The ubiquity of mobile devices has led to a rising demand for location-based services and applications. A major part of these services is based on the location-detection capabi...
Antoniya Petkova, Kien A. Hua, Alexander J. Aved
WWW
2002
ACM
14 years 9 months ago
Probabilistic query expansion using query logs
Query expansion has long been suggested as an effective way to resolve the short query and word mismatching problems. A number of query expansion methods have been proposed in tra...
Hang Cui, Ji-Rong Wen, Jian-Yun Nie, Wei-Ying Ma