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SDM
2012
SIAM
322views Data Mining» more  SDM 2012»
13 years 7 days ago
Adaptive Multi-task Sparse Learning with an Application to fMRI Study
In this paper, we consider the multi-task sparse learning problem under the assumption that the dimensionality diverges with the sample size. The traditional l1/l2 multi-task lass...
Xi Chen, Jingrui He, Rick Lawrence, Jaime G. Carbo...
TMC
2012
13 years 7 days ago
Relay-Assisted Transmission with Fairness Constraint for Cellular Networks
Abstract—We consider the problem of relay-assisted transmission for cellular networks. In the considered system, a source node together with n relay nodes are selected in a propo...
Erwu Liu, Qinqing Zhang, Kin K. Leung
TMC
2012
13 years 7 days ago
Modeling and Performance Evaluation of Backoff Misbehaving Nodes in CSMA/CA Networks
—Backoff misbehavior, in which a wireless node deliberately manipulates its backoff time, can induce significant network problems, such as severe unfairness and denial-of-servic...
Zhuo Lu, Wenye Wang, Cliff Wang
TMC
2012
13 years 7 days ago
Protecting Location Privacy in Sensor Networks against a Global Eavesdropper
— While many protocols for sensor network security provide confidentiality for the content of messages, contextual information usually remains exposed. Such information can be c...
Kiran Mehta, Donggang Liu, Matthew Wright
EDBT
2012
ACM
214views Database» more  EDBT 2012»
13 years 7 days ago
An optimization framework for map-reduce queries
We present an effective optimization framework for general SQLlike map-reduce queries, which is based on a novel query algebra and uses a small number of higher-order physical ope...
Leonidas Fegaras, Chengkai Li, Upa Gupta
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