2674 search results - page 50 / 535 » Data Models and Query Languages for Spatial Databases |
CORR
2010
Springer
13 years 7 months ago
2010
Springer
In this report, we unify two quite distinct approaches to information retrieval: region models and language models. Region models were developed for structured document retrieval....
DATESO
2004
13 years 9 months ago
2004
The XML language have been becoming de-facto a standard for representation of heterogeneous data in the Internet. From database point of view, XML is a new approach to data modelli...
SIGIR
1996
ACM
13 years 11 months ago
1996
ACM
We present a deductive data model for concept-based query expansion. It is based abstraction levels: the conceptual, the expression and the occurrence level. Concepts and their re...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
Many aspects of spatial language concerned with relationships between spatial entities are essentially vague. Current GIS technology provides very little support for dealing with ...
EDBT
2002
ACM
14 years 7 months ago
2002
ACM
Existing work on multiway spatial joins focuses on the retrieval of all exact solutions with no time limit for query processing. Depending on the query and data properties, however...