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» SQLST: A Spatio-Temporal Data Model and Query Language
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CIKM
2011
Springer
13 years 9 months ago
Ranking-based processing of SQL queries
A growing number of applications are built on top of search engines and issue complex structured queries. This paper contributes a customisable ranking-based processing of such qu...
Hany Azzam, Thomas Roelleke, Sirvan Yahyaei
SIGIR
2009
ACM
15 years 4 months ago
An improved markov random field model for supporting verbose queries
Recent work in supervised learning of term-based retrieval models has shown significantly improved accuracy can often be achieved via better model estimation [2, 10, 11, 17]. In ...
Matthew Lease
DBPL
1997
Springer
94views Database» more  DBPL 1997»
15 years 1 months ago
Querying Multidimensional Databases
Abstract. Multidimensional databases are large collections of data, often historical, used for sophisticated analysis oriented to decision making. This activity is supported by an ...
Luca Cabibbo, Riccardo Torlone
CVPR
2007
IEEE
15 years 11 months ago
Searching Video for Complex Activities with Finite State Models
We describe a method of representing human activities that allows a collection of motions to be queried without examples, using a simple and effective query language. Our approach...
Nazli Ikizler, David A. Forsyth
DLOG
2006
14 years 11 months ago
Data Complexity of Answering Unions of Conjunctive Queries in SHIQ
The novel context of accessing and querying large data repositories through ontologies that are formalized in terms of expressive DLs requires on the one hand to consider query an...
Magdalena Ortiz, Diego Calvanese, Thomas Eiter