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MOBIHOC
2005
ACM
16 years 6 months ago
Inducing spatial clustering in MAC contention for spread spectrum ad hoc networks
This paper proposes a new principle for designing MAC protocols for spread spectrum based ad hoc networks ? inducing spatial clustering in contending transmitters/receivers. We fi...
Xiangying Yang, Gustavo de Veciana
MOBIHOC
2003
ACM
16 years 6 months ago
On the capacity improvement of ad hoc wireless networks using directional antennas
The capacity of ad hoc wireless networks is constrained by the interference between concurrent transmissions from neighboring nodes. Gupta and Kumar have shown that the capacity o...
Su Yi, Yong Pei, Shivkumar Kalyanaraman
WSDM
2010
ACM
166views Data Mining» more  WSDM 2010»
16 years 4 months ago
Ranking Mechanisms in Twitter-Like Forums
We study the problem of designing a mechanism to rank items in forums by making use of the user reviews such as thumb and star ratings. We compare mechanisms where forum users rat...
Anish Das Sarma, Atish Das Sarma, Sreenivas Gollap...
ICS
2010
Tsinghua U.
16 years 4 months ago
Non-Malleable Codes
We introduce the notion of "non-malleable codes" which relaxes the notion of error-correction and errordetection. Informally, a code is non-malleable if the message cont...
Stefan Dziembowski, Krzysztof Pietrzak, Daniel Wic...
SDM
2009
SIAM
129views Data Mining» more  SDM 2009»
16 years 4 months ago
Multi-topic Based Query-Oriented Summarization.
Query-oriented summarization aims at extracting an informative summary from a document collection for a given query. It is very useful to help users grasp the main information rel...
Dewei Chen, Jie Tang, Limin Yao
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