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ATMOS
2007
13 years 9 months ago
Maintenance of Multi-level Overlay Graphs for Timetable Queries
In railways systems the timetable is typically represented as a weighted digraph on which itinerary queries are answered by shortest path algorithms, usually running Dijkstra’s a...
Francesco Bruera, Serafino Cicerone, Gianlorenzo D...
SODA
1994
ACM
105views Algorithms» more  SODA 1994»
13 years 9 months ago
Approximate Data Structures with Applications
Abstract Yossi Matias Je rey Scott Vitter y Neal E. Young z In this paper we introduce the notion of approximate data structures, in which a small amount of error is tolerated in...
Yossi Matias, Jeffrey Scott Vitter, Neal E. Young
ICIP
2006
IEEE
14 years 9 months ago
Max-Min Central Vein Detection in Retinal Fundus Images
This paper describes a new framework for the automated tracking of the central retinal vein in retinal images. The procedure first computes a binary image of the retinal vasculatur...
Hind Azegrouz, Emanuele Trucco
ICPR
2000
IEEE
14 years 8 months ago
IRIS - An Image Recognition and Interpretation System for the Dutch Postbank
KPN Research has developed an all-purpose check recognition system for the Dutch Postbank. This Image Recognition and Interpretation System (IRIS) is the result of more than thirt...
I. L. Dijkstra, N. Smits
VLDB
2007
ACM
114views Database» more  VLDB 2007»
14 years 8 months ago
Optimization and evaluation of shortest path queries
We investigate the problem of how to evaluate efficiently a collection of shortest path queries on massive graphs that are too big to fit in the main memory. To evaluate a shortes...
Edward P. F. Chan, Heechul Lim