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JEA
2010
95views more  JEA 2010»
13 years 7 months ago
Combining hierarchical and goal-directed speed-up techniques for dijkstra's algorithm
In recent years, highly effective hierarchical and goal-directed speedup techniques for routing in large road networks have been developed. This paper makes a systematic study of ...
Reinhard Bauer, Daniel Delling, Peter Sanders, Den...
IPM
2007
101views more  IPM 2007»
13 years 9 months ago
Decisions in thesaurus construction and use
A thesaurus and an ontology provide a set of structured terms, phrases, and metadata, often in a hierarchical arrangement, that may be used to index, search, and mine documents. W...
Robert M. Losee
EJC
2002
13 years 8 months ago
On the Natural Imprint Function of a Graph
A subgraph H of a graph G is gated if for every x V(G) there exists a vertex u in H such that dG (x, v) = dG (x, u) + d G (u, v) for any v V(H). The gated amalgam of graphs G 1 an...
Bostjan Bresar
PRL
2007
164views more  PRL 2007»
13 years 8 months ago
Retrieval of objects in video by similarity based on graph matching
In this paper, we tackle the problem of matching of objects in video in the context of the rough indexing paradigm. The approach developed is based on matching of region adjacency...
F. Chevalier, Jean-Philippe Domenger, Jenny Benois...
ASUNAM
2009
IEEE
14 years 2 months ago
Detecting Structural Changes and Command Hierarchies in Dynamic Social Networks
Community detection in social networks varying with time is a common yet challenging problem whereby efficient visualization of evolving relationships and implicit hierarchical s...
Romain Bourqui, Frédéric Gilbert, Pa...