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ATAL
2006
Springer
14 years 1 months ago
2006
Springer
In this paper, we describe an innovative infrastructure to support student participation and collaboration and help the instructor manage large or distance classrooms using multia...
IIE
2007
13 years 9 months ago
2007
The paper addresses the problem of fragmentation of the communities involved in the design of digital media for education. It draws on the experience gained at the Educational Tec...
GEOINFORMATICA
1998
13 years 9 months ago
1998
Due to the increasing popularity of spatial databases, researchers have focused their efforts on improving the query processing performance of the most expensive spatial database ...
GEOINFORMATICA
1998
13 years 9 months ago
1998
ally related entity types, or classes, into higher level, more abstract types, as part of a hierarchical classi®cation scheme. graphy, generalization retains the notion of abstrac...
3DGIS
2006
Springer
14 years 3 months ago
2006
Springer
Database management systems (DBMS) have significantly changed in the last several years. From a system dealing with management of administrative data they have involved to a spati...