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176
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APPROX
2008
Springer
119views Algorithms» more  APPROX 2008»
15 years 8 months ago
The Complexity of Distinguishing Markov Random Fields
Abstract. Markov random fields are often used to model high dimensional distributions in a number of applied areas. A number of recent papers have studied the problem of reconstruc...
Andrej Bogdanov, Elchanan Mossel, Salil P. Vadhan
IPCO
2008
91views Optimization» more  IPCO 2008»
15 years 7 months ago
New Geometry-Inspired Relaxations and Algorithms for the Metric Steiner Tree Problem
Abstract. Determining the integrality gap of the bidirected cut relaxation for the metric Steiner tree problem, and exploiting it algorithmically, is a long-standing open problem. ...
Deeparnab Chakrabarty, Nikhil R. Devanur, Vijay V....
NAACL
2007
15 years 7 months ago
Randomized Decoding for Selection-and-Ordering Problems
The task of selecting and ordering information appears in multiple contexts in text generation and summarization. For instance, methods for title generation construct a headline b...
Pawan Deshpande, Regina Barzilay, David R. Karger
155
Voted
CONCUR
2010
Springer
15 years 7 months ago
Parameterized Verification of Ad Hoc Networks
We study decision problems for parameterized verification of a formal model of Ad Hoc Networks with selective broadcast and spontaneous movement. The communication topology of a ne...
Giorgio Delzanno, Arnaud Sangnier, Gianluigi Zavat...
AUTOMATICA
2010
95views more  AUTOMATICA 2010»
15 years 6 months ago
Sufficient conditions for connectivity maintenance and rendezvous in leader-follower networks
In this paper we derive a set of constraints that are sufficient to guarantee maintained connectivity in a leader-follower multiagent network with proximity based communication to...
Tove Gustavi, Dimos V. Dimarogonas, Magnus Egerste...