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CIVR
2008
Springer
166views Image Analysis» more  CIVR 2008»
15 years 5 months ago
Non-negative matrix factorisation for object class discovery and image auto-annotation
In information retrieval, sub-space techniques are usually used to reveal the latent semantic structure of a data-set by projecting it to a low dimensional space. Non-negative mat...
Jiayu Tang, Paul H. Lewis
SIGMOD
2009
ACM
144views Database» more  SIGMOD 2009»
16 years 4 months ago
Do we mean the same?: disambiguation of extracted keyword queries for database search
Users often try to accumulate information on a topic of interest from multiple information sources. In this case a user's informational need might be expressed in terms of an...
Elena Demidova, Irina Oelze, Peter Fankhauser
CIKM
2004
Springer
15 years 9 months ago
Processing content-oriented XPath queries
Document-centric XML collections contain text-rich documents, marked up with XML tags that add lightweight semantics to the text. Querying such collections calls for a hybrid quer...
Börkur Sigurbjörnsson, Jaap Kamps, Maart...
SIGMOD
2010
ACM
250views Database» more  SIGMOD 2010»
15 years 4 months ago
Expressive and flexible access to web-extracted data: a keyword-based structured query language
Automated extraction of structured data from Web sources often leads to large heterogeneous knowledge bases (KB), with data and schema items numbering in the hundreds of thousands...
Jeffrey Pound, Ihab F. Ilyas, Grant E. Weddell
EDBTW
2010
Springer
15 years 10 months ago
SPARQL query rewriting for implementing data integration over linked data
There has been lately an increased activity of publishing structured data in RDF due to the activity of the Linked Data community1 . The presence on the Web of such a huge informa...
Gianluca Correndo, Manuel Salvadores, Ian Millard,...