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» On the Complexity of Constant Propagation
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CORR
2010
Springer
108views Education» more  CORR 2010»
15 years 1 months ago
Finding Cycles and Trees in Sublinear Time
We present sublinear-time (randomized) algorithms for finding simple cycles of length at least k 3 and tree-minors in bounded-degree graphs. The complexity of these algorithms is...
Artur Czumaj, Oded Goldreich, Dana Ron, C. Seshadh...
CVPR
2009
IEEE
2115views Computer Vision» more  CVPR 2009»
17 years 1 months ago
Real-Time O(1) Bilateral Filtering
We propose a new bilateral filtering algorithm with computational complexity invariant to filter kernel size, socalled O(1) or constant time in the literature. By showing that a...
Kar-Han Tan, Narendra Ahuja, Qingxiong Yang
FOCS
2008
IEEE
15 years 6 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
STOC
2005
ACM
167views Algorithms» more  STOC 2005»
16 years 6 months ago
Approximately counting integral flows and cell-bounded contingency tables
We consider the problem of approximately counting integral flows in a network. We show that there is an fpras based on volume estimation if all capacities are sufficiently large, ...
Mary Cryan, Martin E. Dyer, Dana Randall
STOC
2002
ACM
107views Algorithms» more  STOC 2002»
16 years 6 months ago
Quantum lower bound for the collision problem
The collision problem is to decide whether a function X : {1, . . . , n} {1, . . . , n} is one-to-one or two-to-one, given that one of these is the case. We show a lower bound of...
Scott Aaronson