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» Linear Time Algorithms for Exact Distance Transform
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SWAT
2004
Springer
120views Algorithms» more  SWAT 2004»
14 years 3 months ago
Matching Polyhedral Terrains Using Overlays of Envelopes
For a collection F of d-variate piecewise linear functions of overall combinatorial complexity n, the lower envelope E(F) of F is the pointwise minimum of these functions. The min...
Vladlen Koltun, Carola Wenk
SIGIR
2012
ACM
12 years 18 days ago
An exploration of ranking heuristics in mobile local search
Users increasingly rely on their mobile devices to search local entities, typically businesses, while on the go. Even though recent work has recognized that the ranking signals in...
Yuanhua Lv, Dimitrios Lymberopoulos, Qiang Wu
IROS
2009
IEEE
142views Robotics» more  IROS 2009»
14 years 4 months ago
Reduced state representation in delayed-state SLAM
— This paper introduces an approach that reduces the size of the state and maximizes the sparsity of the information matrix in exactly sparse delayed-state SLAM. We propose const...
Viorela Ila, Josep M. Porta, Juan Andrade-Cetto
CORR
2007
Springer
124views Education» more  CORR 2007»
13 years 10 months ago
Graph-Based Decoding in the Presence of ISI
We propose a new graph representation for ISI channels that can be used for combined equalization and decoding by linear programming (LP) or iterative message-passing (IMP) decodi...
Mohammad H. Taghavi, Paul H. Siegel
DGCI
2008
Springer
13 years 12 months ago
On Watershed Cuts and Thinnings
Abstract. We recently introduced the watershed cuts, a notion of watershed in edge-weighted graphs. In this paper, we propose a new thinning paradigm to compute them. More precisel...
Jean Cousty, Gilles Bertrand, Laurent Najman, Mich...