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» Semantic queries in databases: problems and challenges
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IDEAS
2005
IEEE
142views Database» more  IDEAS 2005»
14 years 2 months ago
Automatically Maintaining Wrappers for Web Sources
A substantial subset of the web data follows some kind of underlying structure. Nevertheless, HTML does not contain any schema or semantic information about the data it represents...
Juan Raposo, Alberto Pan, Manuel Álvarez, J...
ICDE
2008
IEEE
119views Database» more  ICDE 2008»
14 years 10 months ago
MobiQual: QoS-aware Load Shedding in Mobile CQ Systems
Freshness and accuracy are two key measures of quality of service (QoS) in location-based, mobile continual queries (CQs). However, it is often difficult to provide both fresh and ...
Bugra Gedik, Kun-Lung Wu, Philip S. Yu, Ling Liu
TREC
2004
13 years 10 months ago
Domain-Specific Synonym Expansion and Validation for Biomedical Information Retrieval (MultiText Experiments for TREC 2004)
In the domain of biomedical publications, synonyms and homonyms are omnipresent and pose a great challenge for document retrieval systems. For this year's TREC Genomics Ad ho...
Stefan Büttcher, Charles L. A. Clarke, Gordon...
ADC
2009
Springer
151views Database» more  ADC 2009»
14 years 25 days ago
Unified Q-ary Tree for RFID Tag Anti-Collision Resolution
Radio Frequency Identification (RFID) technology uses radio-frequency waves to automatically identify people or objects. A large volume of data, resulting from the fast capturing ...
Prapassara Pupunwiwat, Bela Stantic
ICDE
2010
IEEE
170views Database» more  ICDE 2010»
14 years 8 months ago
Workload Driven Index Defragmentation
Decision support queries that scan large indexes can suffer significant degradation in I/O performance due to index fragmentation. DBAs rely on rules of thumb that use index size a...
Manoj Syamala, Vivek R. Narasayya