Sciweavers

150 search results - page 17 / 30
» Evaluating the spatial indexing of dense point sets
Sort
View
VLDB
2007
ACM
191views Database» more  VLDB 2007»
16 years 6 months ago
Multidimensional reverse k NN search
Given a multidimensional point q, a reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k nearest neighbors. Existing methods for proc...
Yufei Tao, Dimitris Papadias, Xiang Lian, Xiaokui ...
VLDB
2007
ACM
260views Database» more  VLDB 2007»
16 years 6 months ago
Approaching the Skyline in Z Order
Given a set of multidimensional data points, skyline query retrieves a set of data points that are not dominated by any other points. This query is useful for multi-preference ana...
Ken C. K. Lee, Baihua Zheng, Huajing Li, Wang-Chie...
ENVSOFT
2007
94views more  ENVSOFT 2007»
15 years 5 months ago
Automated estimation and analyses of meteorological drought characteristics from monthly rainfall data
The paper describes a new software package for automated estimation, display and analyses of various drought indices – continuous functions of precipitation that allow quantitat...
V. U. Smakhtin, D. A. Hughes
VLDB
2004
ACM
187views Database» more  VLDB 2004»
15 years 11 months ago
Voronoi-Based K Nearest Neighbor Search for Spatial Network Databases
A frequent type of query in spatial networks (e.g., road networks) is to find the K nearest neighbors (KNN) of a given query object. With these networks, the distances between ob...
Mohammad R. Kolahdouzan, Cyrus Shahabi
SCIA
2007
Springer
120views Image Analysis» more  SCIA 2007»
16 years 5 days ago
Evaluating a General Class of Filters for Image Denoising
Abstract. Recently, an energy-based unified framework for image denoising was proposed by Mr´azek et al. [10], from which existing nonlinear filters such as M-smoothers, bilater...
Luis Pizarro, Stephan Didas, Frank Bauer, Joachim ...