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SEMWEB
2010
Springer
13 years 5 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin
ICDE
2005
IEEE
102views Database» more  ICDE 2005»
14 years 8 months ago
Modeling and Managing Content Changes in Text Databases
Large amounts of (often valuable) information are stored in web-accessible text databases. "Metasearchers" provide unified interfaces to query multiple such databases at...
Panagiotis G. Ipeirotis, Alexandros Ntoulas, Jungh...
ECIR
2010
Springer
13 years 8 months ago
Estimating Translation Probabilities from the Web for Structured Queries on CLIR
We present two methods for estimating replacement probabilities without using parallel corpora. The first method proposed exploits the possible translation probabilities latent in ...
Xabier Saralegi, Maddalen Lopez de Lacalle
EMNLP
2008
13 years 8 months ago
The Linguistic Structure of English Web-Search Queries
Web-search queries are known to be short, but little else is known about their structure. In this paper we investigate the applicability of part-of-speech tagging to typical Engli...
Cory Barr, Rosie Jones, Moira Regelson
CIKM
2011
Springer
12 years 7 months ago
Keyword search over RDF graphs
Large knowledge bases consisting of entities and relationships between them have become vital sources of information for many applications. Most of these knowledge bases adopt the...
Shady Elbassuoni, Roi Blanco