813 search results - page 18 / 163 » The Spatial Semantic Hierarchy |
SIGIR
2010
ACM
13 years 11 months ago
2010
ACM
This paper presents a novel prototype hierarchy based clustering (PHC) framework for the organization of web collections. It solves simultaneously the problem of categorizing web ...
DBPL
1997
Springer
13 years 11 months ago
1997
Springer
We consider spatial databases that can be defined in terms of polynomial inequalities, and we are interested in monotonic transformations of spatial databases. We investigate a hi...
VISUALIZATION
2003
IEEE
14 years 23 days ago
2003
IEEE
This paper introduces a method for converting an image or volume sampled on a regular grid into a space-efficient irregular point hierarchy. The conversion process retains the ori...
ADBIS
2000
Springer
13 years 12 months ago
2000
Springer
We consider queries which originate from a mobile unit and whose result depends on the location of the user who initiates the query. Example of such a query is How many people are ...
W2GIS
2007
Springer
14 years 1 months ago
2007
Springer
One of the challenges raised by the construction of the semantic Web lies in the analysis and management of complex relationships (thematic, spatial and temporal) connecting severa...