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GIS
2010
ACM
14 years 8 months ago
A case for time-dependent shortest path computation in spatial networks
The problem of point-to-point shortest path computation in spatial networks is extensively studied with many approaches proposed to speed-up the computation. Most of the existing ...
Ugur Demiryurek, Farnoush Banaei Kashani, Cyrus Sh...
STOC
1999
ACM
85views Algorithms» more  STOC 1999»
15 years 2 months ago
A Theorem on Sensitivity and Applications in Private Computation
In this paper we prove a theorem that gives an (almost) tight upper bound on the sensitivity of a multiple-output Boolean function in terms of the sensitivity of its coordinates an...
Anna Gál, Adi Rosén
COLT
2000
Springer
15 years 2 months ago
The Computational Complexity of Densest Region Detection
We investigate the computational complexity of the task of detecting dense regions of an unknown distribution from un-labeled samples of this distribution. We introduce a formal l...
Shai Ben-David, Nadav Eiron, Hans-Ulrich Simon
STOC
2005
ACM
138views Algorithms» more  STOC 2005»
15 years 10 months ago
Fast quantum algorithms for computing the unit group and class group of a number field
Computing the unit group and class group of a number field are two of the main tasks in computational algebraic number theory. Factoring integers reduces to solving Pell's eq...
Sean Hallgren
IWFM
2003
123views Formal Methods» more  IWFM 2003»
14 years 11 months ago
Logic for Computational Effects: Work in Progress
We outline a possible logic that will allow us to give a unified approach to reasoning about computational effects. The logic is given by extending Moggi’s computational λ-cal...
Gordon D. Plotkin, John Power