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112
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EDBT
2004
ACM
162views Database» more  EDBT 2004»
16 years 2 months ago
Non-contiguous Sequence Pattern Queries
Abstract. Non-contiguous subsequence pattern queries search for symbol instances in a long sequence that satisfy some soft temporal constraints. In this paper, we propose a methodo...
Nikos Mamoulis, Man Lung Yiu
IDEAS
2007
IEEE
148views Database» more  IDEAS 2007»
15 years 9 months ago
Boundedness of Regular Path Queries in Data Integration Systems
In this paper we study the problem of deciding whether a regular path query over views in data-integration systems can be re-expressed without recursion. The problem becomes chall...
Gösta Grahne, Alex Thomo
WEBI
2010
Springer
15 years 14 days ago
An Efficient Method for Tagging a Query with Category Labels Using Wikipedia towards Enhancing Search Engine Results
This paper intends to present a straightforward, extensive, and noise resistant method for efficiently tagging a web query, submitted to a search engine, with proper category label...
Milad Alemzadeh, Fakhri Karray
139
Voted
ACL
2009
15 years 13 days ago
Query Segmentation Based on Eigenspace Similarity
Query segmentation is essential to query processing. It aims to tokenize query words into several semantic segments and help the search engine to improve the precision of retrieva...
Chao Zhang, Nan Sun, Xia Hu, Tingzhu Huang, Tat-Se...
142
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CADE
2012
Springer
13 years 5 months ago
SPARQL Query Containment under RDFS Entailment Regime
The problem of SPARQL query containment is defined as determining if the result of one query is included in the result of another for any RDF graph. Query containment is important...
Melisachew Wudage Chekol, Jérôme Euze...