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FOCS
2008
IEEE
13 years 7 months ago
Market Equilibria in Polynomial Time for Fixed Number of Goods or Agents
We consider markets in the classical Arrow-Debreu model. There are n agents and m goods. Each buyer has a concave utility function (of the bundle of goods he/she buys) and an init...
Nikhil R. Devanur, Ravi Kannan
TAMC
2007
Springer
14 years 1 months ago
Improving the Average Delay of Sorting
In previous work we have introduced an average-case measure for the time complexity of Boolean circuits – that is the delay between feeding the input bits into a circuit and the ...
Andreas Jakoby, Maciej Liskiewicz, Rüdiger Re...
PODS
2010
ACM
242views Database» more  PODS 2010»
14 years 23 days ago
Certain answers for XML queries
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
Claire David, Leonid Libkin, Filip Murlak
COCO
2004
Springer
185views Algorithms» more  COCO 2004»
13 years 11 months ago
Limitations of Quantum Advice and One-Way Communication
Abstract: Although a quantum state requires exponentially many classical bits to describe, the laws of quantum mechanics impose severe restrictions on how that state can be accesse...
Scott Aaronson
CORR
2010
Springer
249views Education» more  CORR 2010»
13 years 7 months ago
Lower Bounds on Near Neighbor Search via Metric Expansion
In this paper we show how the complexity of performing nearest neighbor (NNS) search on a metric space is related to the expansion of the metric space. Given a metric space we loo...
Rina Panigrahy, Kunal Talwar, Udi Wieder