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ESA
2010
Springer
185views Algorithms» more  ESA 2010»
15 years 4 months ago
Fast Routing in Very Large Public Transportation Networks Using Transfer Patterns
We show how to route on very large public transportation networks (up to half a billion arcs) with average query times of a few milliseconds. We take into account many realistic fe...
Hannah Bast, Erik Carlsson, Arno Eigenwillig, Robe...
ICML
2010
IEEE
15 years 4 months ago
Restricted Boltzmann Machines are Hard to Approximately Evaluate or Simulate
Restricted Boltzmann Machines (RBMs) are a type of probability model over the Boolean cube {-1, 1}n that have recently received much attention. We establish the intractability of ...
Philip M. Long, Rocco A. Servedio
ICASSP
2010
IEEE
15 years 3 months ago
Nonlinear kernel backprojection for computed tomography
In this paper, we propose a kernel backprojection method for computed tomography. The classical backprojection method estimates an unknown pixel value by the summation of the proj...
Hiroyuki Takeda, Peyman Milanfar
ICASSP
2010
IEEE
15 years 3 months ago
Effect of speaking style and speaking rate on formant contours
This paper presents the results of formant analysis using a newly developed formant contour model. We model formant contours with a linear combination of formant target values and...
Akiko Amano-Kusumoto, John-Paul Hosom
CDC
2008
IEEE
145views Control Systems» more  CDC 2008»
15 years 3 months ago
Necessary and sufficient conditions for success of the nuclear norm heuristic for rank minimization
Minimizing the rank of a matrix subject to constraints is a challenging problem that arises in many applications in control theory, machine learning, and discrete geometry. This c...
Benjamin Recht, Weiyu Xu, Babak Hassibi