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ICML
2008
IEEE
15 years 12 months ago
Sample-based learning and search with permanent and transient memories
We present a reinforcement learning architecture, Dyna-2, that encompasses both samplebased learning and sample-based search, and that generalises across states during both learni...
David Silver, Martin Müller 0003, Richard S. ...
ICALP
2010
Springer
15 years 3 months ago
On the Inapproximability of Vertex Cover on k-Partite k-Uniform Hypergraphs
Computing a minimum vertex cover in graphs and hypergraphs is a well-studied optimizaton problem. While intractable in general, it is well known that on bipartite graphs, vertex c...
Venkatesan Guruswami, Rishi Saket
ESA
2010
Springer
207views Algorithms» more  ESA 2010»
15 years 6 days ago
Budgeted Red-Blue Median and Its Generalizations
In a Content Distribution Network application, we have a set of servers and a set of clients to be connected to the servers. Often there are a few server types and a hard budget co...
MohammadTaghi Hajiaghayi, Rohit Khandekar, Guy Kor...
CORR
2010
Springer
176views Education» more  CORR 2010»
14 years 11 months ago
Sequential item pricing for unlimited supply
We investigate the extent to which price updates can increase the revenue of a seller with little prior information on demand. We study prior-free revenue maximization for a selle...
Maria-Florina Balcan, Florin Constantin
APPROX
2011
Springer
234views Algorithms» more  APPROX 2011»
13 years 11 months ago
Streaming Algorithms with One-Sided Estimation
Abstract. We study the space complexity of randomized streaming algorithms that provide one-sided approximation guarantees; e.g., the algorithm always returns an overestimate of th...
Joshua Brody, David P. Woodruff