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» On tree congestion of graphs
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IWDC
2005
Springer
156views Communications» more  IWDC 2005»
15 years 3 months ago
Labeling Schemes for Tree Representation
This paper deals with compact label-based representations for trees. Consider an n-node undirected connected graph G with a predefined numbering on the ports of each node. The al...
Reuven Cohen, Pierre Fraigniaud, David Ilcinkas, A...
IJFCS
2007
93views more  IJFCS 2007»
14 years 9 months ago
On Computing Longest Paths in Small Graph Classes
The longest path problem is to find a longest path in a given graph. While the graph classes in which the Hamiltonian path problem can be solved efficiently are widely investigat...
Ryuhei Uehara, Yushi Uno
STOC
2004
ACM
131views Algorithms» more  STOC 2004»
15 years 10 months ago
(Almost) tight bounds and existence theorems for confluent flows
A flow is said to be confluent if at any node all the flow leaves along a single edge. Given a directed graph G with k sinks and non-negative demands on all the nodes of G, we con...
Jiangzhuo Chen, Robert D. Kleinberg, Lászl&...
ICPR
2004
IEEE
15 years 11 months ago
Tracking Soccer Players using the Graph Representation
In this project we consider the problem of tracking a soccer player using a static camera. The main goal is to find the position of players in the field at each instance of time t...
Gérard G. Medioni, Isaac Cohen, Neucimar Je...
SIGMOD
2004
ACM
121views Database» more  SIGMOD 2004»
15 years 10 months ago
An Optimal Algorithm for Querying Tree Structures and its Applications in Bioinformatics
Trees and graphs are widely used to model biological databases. Providing efficient algorithms to support tree-based or graph-based querying is therefore an important issue. In th...
Hsiao-Fei Liu, Ya-Hui Chang, Kun-Mao Chao