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CDC
2010
IEEE
122views Control Systems» more  CDC 2010»
14 years 11 months ago
Nonholonomic source seeking in switching random fields
We consider the problem of designing controllers for nonholonomic mobile robots converging to the source (minimum) of a field. In addition to the mobility constraints posed by the ...
Shun-ichi Azuma, Mahmut Selman Sakar, George J. Pa...
147
Voted
IFIP
2004
Springer
15 years 10 months ago
Solving Packing Problem with Weaker Block Solvers
We study the general packing problem with M constraints. In [Jansen and Zhang, TCS 2002] a c(1 + ε)-approximation algorithm for the general packing problem was proposed. A block s...
Hu Zhang
CORR
2010
Springer
107views Education» more  CORR 2010»
15 years 3 months ago
Maximum Betweenness Centrality: Approximability and Tractable Cases
The Maximum Betweenness Centrality problem (MBC) can be defined as follows. Given a graph find a k-element node set C that maximizes the probability of detecting communication be...
Martin Fink, Joachim Spoerhase
PODS
2011
ACM
220views Database» more  PODS 2011»
14 years 7 months ago
Maximizing conjunctive views in deletion propagation
In deletion propagation, tuples from the database are deleted in order to reflect the deletion of a tuple from the view. Such an operation may result in the (often necessary) del...
Benny Kimelfeld, Jan Vondrák, Ryan Williams
SODA
2012
ACM
217views Algorithms» more  SODA 2012»
13 years 7 months ago
Polynomial integrality gaps for strong SDP relaxations of Densest k-subgraph
The Densest k-subgraph problem (i.e. find a size k subgraph with maximum number of edges), is one of the notorious problems in approximation algorithms. There is a significant g...
Aditya Bhaskara, Moses Charikar, Aravindan Vijayar...