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» On the Bit Extraction Problem
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112
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TALG
2010
74views more  TALG 2010»
15 years 2 months ago
Comparison-based time-space lower bounds for selection
We establish the first nontrivial lower bounds on timespace tradeoffs for the selection problem. We prove that any comparison-based randomized algorithm for finding the median ...
Timothy M. Chan
SOCIALCOM
2010
15 years 1 months ago
Assessing the Value of Contributions in Tagging Systems
-- Assessing the value of individual users' contributions in peer-production systems is paramount to the design of mechanisms that support collaboration and improve users'...
Elizeu Santos-Neto, Flavio Figueiredo, Jussara M. ...
WIOPT
2010
IEEE
15 years 1 months ago
Stable throughput, rate control, and delay in multi-access channels
In this paper, we investigate the stability and delay issues of a two-user multi-access channel at the bit level. The two users, have the option to transmit at a higher rate (measu...
Beiyu Rong, Anthony Ephremides
143
Voted
CORR
2011
Springer
150views Education» more  CORR 2011»
14 years 11 months ago
Optimal coding for the deletion channel with small deletion probability
The deletion channel is the simplest point-to-point communication channel that models lack of synchronization. Input bits are deleted independently with probability d, and when th...
Yashodhan Kanoria, Andrea Montanari
162
Voted
CORR
2010
Springer
107views Education» more  CORR 2010»
14 years 11 months ago
One-Shot Capacity of Discrete Channels
Shannon defined channel capacity as the highest rate at which there exists a sequence of codes of block length n such that the error probability goes to zero as n goes to infinity....
Rui A. Costa, Michael Langberg, João Barros