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ICDE
2007
IEEE
110views Database» more  ICDE 2007»
16 years 8 months ago
Pointwise-Dense Region Queries in Spatio-temporal Databases
Applications such as traffic management and resource scheduling for location-based services commonly need to identify regions with high concentrations of moving objects. Such quer...
Jinfeng Ni, Chinya V. Ravishankar
GIS
2004
ACM
16 years 7 months ago
Query processing in a geographic mediation system
Despite various interoperability recommendations, heterogeneity of Geographic Information Systems (GIS) is still an issue. This led to an increasing need for a data integration sy...
François-Marie Colonna, Mehdi Essid, Omar B...
KDD
2005
ACM
104views Data Mining» more  KDD 2005»
16 years 7 months ago
Mining tree queries in a graph
We present an algorithm for mining tree-shaped patterns in a large graph. Novel about our class of patterns is that they can contain constants, and can contain existential nodes w...
Bart Goethals, Eveline Hoekx, Jan Van den Bussche
SIGMOD
2009
ACM
189views Database» more  SIGMOD 2009»
16 years 6 months ago
Query segmentation using conditional random fields
A growing mount of available text data are being stored in relational databases, giving rise to an increasing need for the RDBMSs to support effective text retrieval. In this pape...
Xiaohui Yu, Huxia Shi
SIGMOD
2002
ACM
196views Database» more  SIGMOD 2002»
16 years 6 months ago
Storing and querying ordered XML using a relational database system
XML is quickly becoming the de facto standard for data exchange over the Internet. This is creating a new set of data management requirements involving XML, such as the need to st...
Igor Tatarinov, Stratis Viglas, Kevin S. Beyer, Ja...