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» On optimal service selection
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BNCOD
2006
55views Database» more  BNCOD 2006»
15 years 1 months ago
On the Optimal Ordering of Maps, Selections, and Joins Under Factorization
We examine the problem of producing the optimal evaluation order for queries containing joins, selections, and maps. Specifically, we look at the case where common subexpressions i...
Thomas Neumann, Sven Helmer, Guido Moerkotte
ICIP
2004
IEEE
16 years 1 months ago
Optimal sensor selection for video-based target tracking in a wireless sensor network
The use of wireless sensor networks for target tracking is an active area of research. Imaging sensors that obtain video-rate images of a scene can have a significant impact in su...
Peshala V. Pahalawatta, Thrasyvoulos N. Pappas, Ag...
CVIU
2008
141views more  CVIU 2008»
14 years 12 months ago
Change detection using a statistical model in an optimally selected color space
We present a new noise model for color channels for statistical change detection. Based on this noise modeling, we estimate the distribution of Euclidean distances between the pix...
Youngbae Hwang, Jun-Sik Kim, In-So Kweon
ICC
2009
IEEE
157views Communications» more  ICC 2009»
15 years 6 months ago
Optimal Relay Assignment and Power Allocation in Selection Based Cooperative Cellular Networks
—We consider a system with a single base station communicating with multiple users over orthogonal channels while being assisted by multiple relays. Several recent works have sug...
Sachin Kadloor, Raviraj Adve
ICC
2008
IEEE
136views Communications» more  ICC 2008»
15 years 6 months ago
Flow-Optimized Asynchronous Relay Selection Protocol for Parallel Relay Networks
—We investigate the problem of flow optimization in a parallel relay network which consists of a single source sending information to a single destination through multiple relay...
Wai Pan Tam, Tat M. Lok, Tan F. Wong