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JAIR
2010
94views more  JAIR 2010»
13 years 7 months ago
Which Clustering Do You Want? Inducing Your Ideal Clustering with Minimal Feedback
While traditional research on text clustering has largely focused on grouping documents by topic, it is conceivable that a user may want to cluster documents along other dimension...
Sajib Dasgupta, Vincent Ng
GLOBECOM
2009
IEEE
13 years 6 months ago
Energy-Efficient Space-Time Coded Cooperative Routing in Multihop Wireless Networks
Due to the limited energy supplies of nodes in many applications like wireless sensor networks, energy efficiency is crucial for extending the lifetime of these networks. This pape...
Behrouz Maham, Ravi Narasimhan, Are Hjørung...
ECCC
2011
234views ECommerce» more  ECCC 2011»
13 years 3 months ago
On the complexity of computational problems regarding distributions (a survey)
We consider two basic computational problems regarding discrete probability distributions: (1) approximating the statistical difference (aka variation distance) between two given d...
Oded Goldreich, Salil P. Vadhan
JMLR
2010
135views more  JMLR 2010»
13 years 3 months ago
An Exponential Model for Infinite Rankings
This paper presents a statistical model for expressing preferences through rankings, when the number of alternatives (items to rank) is large. A human ranker will then typically r...
Marina Meila, Le Bao
TCOM
2010
162views more  TCOM 2010»
13 years 3 months ago
Power Allocation in MMSE Relaying over Frequency-Selective Rayleigh Fading Channels
Abstract--This paper develops an amplify-and-forward relaying scheme for multiuser wireless cooperative networks under frequency-selective block-fading. Single-carrier frequency di...
Tung T. Pham, Ha H. Nguyen, Hoang Duong Tuan