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ICDE
2009
IEEE
210views Database» more  ICDE 2009»
14 years 10 months ago
Keyword Search in Spatial Databases: Towards Searching by Document
This work addresses a novel spatial keyword query called the m-closest keywords (mCK) query. Given a database of spatial objects, each tuple is associated with some descriptive inf...
Dongxiang Zhang, Yeow Meng Chee, Anirban Mondal, A...
ICDE
2007
IEEE
182views Database» more  ICDE 2007»
14 years 10 months ago
DIKNN: An Itinerary-based KNN Query Processing Algorithm for Mobile Sensor Networks
Current approaches to K Nearest Neighbor (KNN) search in mobile sensor networks require certain kind of indexing support. This index could be either a centralized spatial index or...
Shan-Hung Wu, Kun-Ta Chuang, Chung-Min Chen, Ming-...
ICDE
1998
IEEE
83views Database» more  ICDE 1998»
14 years 10 months ago
Grouping Techniques for Update Propagation in Intermittently Connected Databases
We consider an environment where one or more servers carry databases that are of interest to a community of clients. The clients are only intermittently connected to the server fo...
Sameer Mahajan, Michael J. Donahoo, Shamkant B. Na...
GIS
2008
ACM
14 years 9 months ago
Parallel ODETLAP for terrain compression and reconstruction
We introduce a parallel approximation of an Over-determined Laplacian Partial Differential Equation solver (ODETLAP) applied to the compression and restoration of terrain data use...
Jared Stookey, Zhongyi Xie, Barbara Cutler, W. Ran...
DAC
2008
ACM
14 years 9 months ago
Statistical modeling and simulation of threshold variation under dopant fluctuations and line-edge roughness
The threshold voltage (Vth) of a nanoscale transistor is severely affected by random dopant fluctuations and line-edge roughness. The analysis of these effects usually requires at...
Yun Ye, Frank Liu, Sani R. Nassif, Yu Cao