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ICASSP
2011
IEEE
12 years 9 months ago
Convex relaxation approaches to maximum likelihood DOA estimation in ULA's and UCA's with unknown mutual coupling
Direction of arrival (DOA) estimation using sensor array superresolution techniques are known to suffer from array modeling errors including array element displacements, mutual co...
Kehu Yang, Shu Cai, Zhi-Quan Luo
ICASSP
2011
IEEE
12 years 9 months ago
Joint reduce of metal and beam hardening artifacts using Multi-Energy map approach in X-ray Computed Tomography
Metal and beam-hardening artifacts are tough issues in Computed Tomography (CT) images. This paper proposes an iterative Maximum A Posteriori (MAP) reconstruction algorithm aiming...
Yuling Zheng, Caifang Cai, Thomas Rodet
FLAIRS
2011
12 years 9 months ago
Internal Usability Testing of Automated Essay Feedback in an Intelligent Writing Tutor
Research on automated essay scoring (AES) indicates that computer-generated essay ratings are comparable to human ratings. However, despite investigations into the accuracy and re...
Rod Roscoe, Laura Varner, Zhiqiang Cai, Jennifer L...
TIT
2011
128views more  TIT 2011»
13 years 21 days ago
Secure Network Coding on a Wiretap Network
—In the paradigm of network coding, the nodes in a network are allowed to encode the information received from the input links. With network coding, the full capacity of the netw...
Ning Cai, Raymond W. Yeung
JSAC
2011
144views more  JSAC 2011»
12 years 8 months ago
Time and Location-Critical Emergency Message Dissemination for Vehicular Ad-Hoc Networks
—One promise of Vehicular Ad-hoc Networks (VANET) is to considerably increase road safety and travel comfort by enabling inter-vehicle communications. Among a vast array of poten...
Yanyan Zhuang, Jianping Pan, Yuanqian Luo, Lin Cai