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92
Voted
STOC
2009
ACM
136views Algorithms» more  STOC 2009»
16 years 1 months ago
Random walks on polytopes and an affine interior point method for linear programming
Let K be a polytope in Rn defined by m linear inequalities. We give a new Markov Chain algorithm to draw a nearly uniform sample from K. The underlying Markov Chain is the first t...
Ravi Kannan, Hariharan Narayanan
109
Voted
CHI
2002
ACM
16 years 1 months ago
Effects of four computer-mediated communications channels on trust development
When virtual teams need to establish trust at a distance, it is advantageous for them to use rich media to communicate. We studied the emergence of trust in a social dilemma game ...
Nathan Bos, Judith S. Olson, Darren Gergle, Gary M...
193
Voted
SIGMOD
2008
ACM
236views Database» more  SIGMOD 2008»
16 years 26 days ago
Approximate embedding-based subsequence matching of time series
A method for approximate subsequence matching is introduced, that significantly improves the efficiency of subsequence matching in large time series data sets under the dynamic ti...
Vassilis Athitsos, Panagiotis Papapetrou, Michalis...
PERCOM
2008
ACM
16 years 9 days ago
ReMo : An Energy Efficient Reprogramming Protocol for Mobile Sensor Networks
Existing code update protocols for reprogramming nodes in a sensor network are either unsuitable or inefficient when used in a mobile environment. The prohibitive factor of uncert...
Pradip De, Yonghe Liu, Sajal K. Das
93
Voted
MOBIHOC
2008
ACM
16 years 9 days ago
Localized distance-sensitive service discovery in wireless sensor networks
In this paper, we identify a new problem in wireless sensor networks, distance sensitive service discovery, where nearby or closest service selection guarantee is expected. We pro...
Xu Li, Nicola Santoro, Ivan Stojmenovic