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CORR
2008
Springer
133views Education» more  CORR 2008»
13 years 4 months ago
Approximation Algorithms for Shortest Descending Paths in Terrains
A path from s to t on a polyhedral terrain is descending if the height of a point p never increases while we move p along the path from s to t. No efficient algorithm is known to ...
Mustaq Ahmed, Sandip Das, Sachin Lodha, Anna Lubiw...
CORR
2007
Springer
143views Education» more  CORR 2007»
13 years 4 months ago
An Approximation Algorithm for Shortest Descending Paths
A path from s to t on a polyhedral terrain is descending if the height of a point p never increases while we move p along the path from s to t. No efficient algorithm is known to ...
Mustaq Ahmed, Anna Lubiw
JCT
2011
86views more  JCT 2011»
12 years 11 months ago
Descendant-homogeneous digraphs
The descendant set desc(α) of a vertex α in a digraph D is the set of vertices which can be reached by a directed path from α. A subdigraph of D is finitely generated if it is...
Daniela Amato, John K. Truss
ICPR
2006
IEEE
14 years 5 months ago
Camera Text Recognition based on Perspective Invariants
As camera resolution increases, high-speed non-contact text capture through a digital camera is opening up a new channel for document capture and understanding. Unfortunately, per...
Chew Lim Tan, Shijian Lu
DAM
2010
101views more  DAM 2010»
13 years 4 months ago
On the distribution of distances between specified nodes in increasing trees
We study the quantity distance between node j and node n in a random tree of size n for increasing tree families. We give closed formul
Markus Kuba, Alois Panholzer