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SAC
2009
ACM
16 years 1 months ago
Defending online reputation systems against collaborative unfair raters through signal modeling and trust
Online feedback-based rating systems are gaining popularity. Dealing with collaborative unfair ratings in such systems has been recognized as an important but difficult problem. T...
Yafei Yang, Yan Lindsay Sun, Steven Kay, Qing Yang
CCECE
2009
IEEE
16 years 1 months ago
The second-order monostatic HF radar cross section incorporating antenna barge motion
The second-order HF radar ocean cross section is derived for the case of the transmitting and receiving antenna undergoing platform (i.e. barge) motion. The derivation for electro...
John Walsh, Weimin Huang, Eric Gill
CEC
2009
IEEE
16 years 1 months ago
Tackling high dimensional nonseparable optimization problems by cooperatively coevolving particle swarms
— This paper attempts to address the question of scaling up Particle Swarm Optimization (PSO) algorithms to high dimensional optimization problems. We present a cooperative coevo...
Xiaodong Li, Xin Yao
GLOBECOM
2009
IEEE
16 years 1 months ago
The Directional Attack on Wireless Localization -or- How to Spoof Your Location with a Tin Can
—802.11 localization algorithms provide the ability to accurately position and track wireless clients thereby enabling location-based services and applications. However, we show ...
Kevin S. Bauer, Damon McCoy, Eric W. Anderson, Mar...
ICASSP
2009
IEEE
16 years 1 months ago
Low bitrate audio coding using generalized adaptive gain shape vector quantization across channels
Audio coding at low bitrates suffers from artifacts due to spectrum truncation. Typical audio codecs code multi-channel sources using transforms across the channels to remove redu...
Sanjeev Mehrotra, Wei-Ge Chen, Kishore A. Kotteri