virtual classroom-2
Asynchronous learning networks as a virtual classroom FREE-DOWNLOAD [PDF]SR Hiltz… – Communications of the ALN’s virtual facilities allow students to exchange emotional . Social Networks, Cooperative Work, and Virtual Communities When computer networks link
Spatial Databases-3
Soft Computing Techniques in Spatial Databases FREE-DOWNLOAD [PDF] M Schneider – … for Database Technologies: Techniques and Issues, 2010 Spatial database systems and geographical information systems are currently only able to support geographical applications that deal with only crisp spatial objects, that is, objects whose extent, shape, and boundary are precisely determined. Examples are land parcels
queries in spatial databases
Continuous obstructed nearest neighbor queries in spatial databases FREE-DOWNLOAD [PDF] Y Gao… – Proceedings of the 35th SIGMOD international …, 2009 ABSTRACT In this paper, we study a novel form of continuous nearest neighbor queries in the presence of obstacles, namely continuous obstructed nearest neighbor (CONN) search. It considers the impact of obstacles on the distance between […]