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JGS
2000
182views more  JGS 2000»
15 years 4 months ago
The academic success of GIS in geography: Problems and prospects
The success of GIS has in some ways proved to be a mixed blessing to academic geography. While quantitative geography has developed as a disciplinary specialism over a long period ...
Paul A. Longley
SIAMCO
2000
137views more  SIAMCO 2000»
15 years 4 months ago
On a Class of Diffeomorphic Matching Problems in One Dimension
We study a class of functional which can be used for matching objects which can be represented as mappings from a fixed interval, I, to some "feature space." This class o...
Alain Trouvé, Laurent Younes
IPL
2010
71views more  IPL 2010»
15 years 3 months ago
New common ancestor problems in trees and directed acyclic graphs
We derive a new generalization of lowest common ancestors (LCAs) in dags, called the lowest single common ancestor (LSCA). We show how to preprocess a static dag in linear time su...
Johannes Fischer, Daniel H. Huson
SIAMNUM
2010
127views more  SIAMNUM 2010»
14 years 11 months ago
The Discrete Duality Finite Volume Method for Convection-diffusion Problems
In this paper we extend the discrete duality finite volume (DDFV) formulation to the steady convection-diffusion equation. The discrete gradients defined in DDFV are used to define...
Yves Coudière, Gianmarco Manzini
CVPR
2003
IEEE
16 years 7 months ago
Recognizing Objects in Adversarial Clutter: Breaking a Visual CAPTCHA
In this paper we explore object recognition in clutter. We test our object recognition techniques on Gimpy and EZGimpy, examples of visual CAPTCHAs. A CAPTCHA ("Completely Au...
Greg Mori, Jitendra Malik