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BNCOD
2006
55views Database» more  BNCOD 2006»
13 years 10 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
WWW
2009
ACM
14 years 9 months ago
Combining global optimization with local selection for efficient QoS-aware service composition
The run-time binding of web services has been recently put forward in order to support rapid and dynamic web service compositions. With the growing number of alternative web servi...
Mohammad Alrifai, Thomas Risse
ICIP
2004
IEEE
14 years 10 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»
13 years 8 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»
14 years 3 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