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ICALP
2009
Springer
16 years 7 months ago
Counting Subgraphs via Homomorphisms
We introduce a generic approach for counting subgraphs in a graph. The main idea is to relate counting subgraphs to counting graph homomorphisms. This approach provides new algori...
Omid Amini, Fedor V. Fomin, Saket Saurabh
CISS
2008
IEEE
16 years 1 months ago
On sparse representations of linear operators and the approximation of matrix products
—Thus far, sparse representations have been exploited largely in the context of robustly estimating functions in a noisy environment from a few measurements. In this context, the...
Mohamed-Ali Belabbas, Patrick J. Wolfe
FSTTCS
2003
Springer
15 years 12 months ago
Distance-Preserving Approximations of Polygonal Paths
Given a polygonal path P with vertices p1, p2, . . . , pn and a real number t ≥ 1, a path Q = (pi1 , pi2 , . . . , pik ) is a t-distance-preserving approximation of P if 1 = i1 &...
Joachim Gudmundsson, Giri Narasimhan, Michiel H. M...
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SCALESPACE
2001
Springer
15 years 11 months ago
Generic Multi-scale Segmentation and Curve Approximation Method
Abstract. We propose a new complete method to extract significant description(s) of planar curves according to constant curvature segments. This method is based (i) on a multi-sca...
Marielle Mokhtari, Robert Bergevin
ATAL
2009
Springer
15 years 10 months ago
Improved approximation of interactive dynamic influence diagrams using discriminative model updates
Interactive dynamic influence diagrams (I-DIDs) are graphical models for sequential decision making in uncertain settings shared by other agents. Algorithms for solving I-DIDs fac...
Prashant Doshi, Yifeng Zeng