Sciweavers

5030 search results - page 988 / 1006
» cases 2007
Sort
View
SDM
2007
SIAM
187views Data Mining» more  SDM 2007»
13 years 11 months ago
Topic Models over Text Streams: A Study of Batch and Online Unsupervised Learning
Topic modeling techniques have widespread use in text data mining applications. Some applications use batch models, which perform clustering on the document collection in aggregat...
Arindam Banerjee, Sugato Basu
SODA
2007
ACM
123views Algorithms» more  SODA 2007»
13 years 11 months ago
Region-fault tolerant geometric spanners
We introduce the concept of region-fault tolerant spanners for planar point sets, and prove the existence of region-fault tolerant spanners of small size. For a geometric graph G ...
Mohammad Ali Abam, Mark de Berg, Mohammad Farshi, ...
SPRINGSIM
2007
13 years 11 months ago
An architecture for wireless simulation in NS-2 applied to impulse-radio ultra-wide band networks
We present an architecture for implementing a wireless physical layer in a packet-based network simulator. We integrate this architecture in the popular ns-2 network simulator and...
Ruben Merz, Jean-Yves Le Boudec, Jörg Widmer
WALCOM
2007
IEEE
151views Algorithms» more  WALCOM 2007»
13 years 11 months ago
Base Station Placement Problem on the Boundary of a Convex Region
Due to the recent growth in the demand of mobile communication services in several typical environments, the development of efficient systems for providing specialized services ha...
Gautam K. Das, Sasanka Roy, Sandip Das, Subhas C. ...
WCE
2007
13 years 11 months ago
The Dynamic Spatial Disaggregation Approach: A Spatio-Temporal Modelling of Crime
— The spatio-temporal modelling and forecasting of incidences of crimes have now become a routine part of crime prevention operations. However, obtaining reliable forecasts for c...
Christian Ivaha, Hasan Al-Madfai, Gary Higgs, J. A...