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ICASSP
2009
IEEE
16 years 1 months ago
Shrinkage estimation of high dimensional covariance matrices
We address covariance estimation under mean-squared loss in the Gaussian setting. Specifically, we consider shrinkage methods which are suitable for high dimensional problems wit...
Yilun Chen, Ami Wiesel, Alfred O. Hero
ISCC
2009
IEEE
158views Communications» more  ISCC 2009»
16 years 1 months ago
Connectivity and critical point behavior in mobile ad hoc and sensor networks
— A well-known approach to increase the resilience of mobile ad hoc networks (MANETs) and unstructured sensor networks is to ensure a network topology where there are at least k ...
Tae-Hoon Kim, David Tipper, Prashant Krishnamurthy
ICDM
2009
IEEE
143views Data Mining» more  ICDM 2009»
16 years 1 months ago
An Attack on the Privacy of Sanitized Data that Fuses the Outputs of Multiple Data Miners
Abstract—Data sanitization has been used to restrict reidentification of individuals and disclosure of sensitive information from published data. We propose an attack on the pri...
Michal Sramka, Reihaneh Safavi-Naini, Jörg De...
INFOCOM
2009
IEEE
16 years 1 months ago
Sensor Network Localization Using Sensor Perturbation
—Sensor network localization is an instance of the NP-HARD graph realization problem. Thus, methods used in practice are not guaranteed to find the correct localization, even if...
Yuanchen Zhu, Steven J. Gortler, Dylan Thurston
INFOCOM
2009
IEEE
16 years 1 months ago
Alpha Coverage: Bounding the Interconnection Gap for Vehicular Internet Access
—Vehicular Internet access via open WLAN access points (APs) has been demonstrated to be a feasible solution to provide opportunistic data service to moving vehicles. Using an in...
Zizhan Zheng, Prasun Sinha, Santosh Kumar