Sciweavers

5009 search results - page 792 / 1002
» Data Mining Support in Database Management Systems
Sort
View
SSD
2009
Springer
145views Database» more  SSD 2009»
16 years 1 months ago
Versioning of Network Models in a Multiuser Environment
The standard database mechanisms for concurrency control, which include transactions and locking protocols, do not provide the support needed for updating complex geographic data i...
Petko Bakalov, Erik G. Hoel, Sudhakar Menon, Vassi...
PODS
2009
ACM
130views Database» more  PODS 2009»
16 years 7 months ago
Secondary indexing in one dimension: beyond b-trees and bitmap indexes
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
Rasmus Pagh, Srinivasa Rao Satti
GIS
2006
ACM
16 years 7 months ago
Optimization of multiple continuous queries over streaming satellite data
Remotely sensed data, in particular satellite imagery, play many important roles in environmental applications and models. In particular applications that study (rapid) changes in...
Quinn Hart, Michael Gertz
JUCS
2010
183views more  JUCS 2010»
15 years 5 months ago
User Context and Personalized Learning: a Federation of Contextualized Attention Metadata
: Nowadays, personalized education is a very hot topic in technology enhanced learning (TEL) research. To support students during their learning process, the first step consists in...
Valentin Butoianu, Philippe Vidal, Katrien Verbert...
CSCW
2006
ACM
15 years 6 months ago
Scientific Data Collections and Distributed Collective Practice
As the basic sciences become increasingly information-intensive, the management and use of research data presents new challenges in the collective activities that constitute schola...
Melissa H. Cragin, Kalpana Shankar