Sciweavers

383 search results - page 50 / 77
» Just-In-Time Processing of Continuous Queries
Sort
View
DBPL
2003
Springer
92views Database» more  DBPL 2003»
14 years 25 days ago
A Query Algebra for Fragmented XML Stream Data
The increased usage of mobile devices coupled with an unprecedented demand for information has pushed the scalability problem of pull-based data service to the focus. A broadcast ...
Sujoe Bose, Leonidas Fegaras, David Levine, Vamsi ...
GEOINFORMATICA
2007
223views more  GEOINFORMATICA 2007»
13 years 7 months ago
Algorithms for Nearest Neighbor Search on Moving Object Trajectories
Nearest Neighbor (NN) search has been in the core of spatial and spatiotemporal database research during the last decade. The literature on NN query processing algorithms so far d...
Elias Frentzos, Kostas Gratsias, Nikos Pelekis, Ya...
MDM
2009
Springer
192views Communications» more  MDM 2009»
14 years 2 months ago
Thresholded Range Aggregation in Sensor Networks
— The recent advances in wireless sensor technologies (e.g., Mica, Telos motes) enable the economic deployment of lightweight sensors for capturing data from their surrounding en...
Zhifeng Lin, Man Lung Yiu, Nikos Mamoulis
MOBIDE
2010
ACM
13 years 7 months ago
Direction-based spatial skylines
Traditional location-based services recommend nearest objects to the user by considering their spatial proximity. However, an object not only has its distance but also has its dir...
Xi Guo, Yoshiharu Ishikawa, Yunjun Gao
TKDE
2008
169views more  TKDE 2008»
13 years 7 months ago
A Cost-Based Approach to Adaptive Resource Management in Data Stream Systems
Data stream management systems need to control their resources adaptively since stream characteristics and query workload may vary over time. In this paper we investigate an approa...
Michael Cammert, Jürgen Krämer, Bernhard...