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ISCI
2007
115views more  ISCI 2007»
13 years 7 months ago
Compressed histograms with arbitrary bucket layouts for selectivity estimation
Selectivity estimation is an important step of query optimization in a database management system, and multidimensional histogram techniques have proved promising for selectivity ...
Dennis Fuchs, Zhen He, Byung Suk Lee
IJCAI
2001
13 years 9 months ago
Distributed Monitoring of Hybrid Systems: A model-directed approach
This paper presents an efficient online mode estimation algorithm for a class of sensor-rich, distributed embedded systems, the so-called hybrid systems. A central problem in dist...
Feng Zhao, Xenofon D. Koutsoukos, Horst W. Haussec...
MOBISYS
2006
ACM
14 years 7 months ago
Improved access point selection
This paper presents Virgil, an automatic access point discovery and selection system. Unlike existing systems that select access points based entirely on received signal strength,...
Anthony J. Nicholson, Yatin Chawathe, Mike Y. Chen...
ICC
2007
IEEE
107views Communications» more  ICC 2007»
13 years 11 months ago
A New Multiple Scatterer Model for Fixed Indoor Wireless Communication Channels
A new statistical channel model known as the Multiple Scatterer Channel (MSC) is developed to capture the time variations of both line-of-sight (LOS) and non-line-of-sight (NLOS) f...
Paisarn Sonthikorn, Ozan K. Tonguz
ICASSP
2011
IEEE
12 years 11 months ago
Non-linear noise compensation for robust speech recognition using Gauss-Newton method
In this paper, we present the Gauss-Newton method as a unified approach to optimizing non-linear noise compensation models, such as vector Taylor series (VTS), data-driven parall...
Yong Zhao, Biing-Hwang Juang