Sciweavers

324 search results - page 19 / 65
» Distance Approximating Trees: Complexity and Algorithms
Sort
View
ACID
2006
220views Algorithms» more  ACID 2006»
13 years 8 months ago
Vertex and Edge Covers with Clustering Properties: Complexity and Algorithms
We consider the concepts of a t-total vertex cover and a t-total edge cover (t 1), which generalize the notions of a vertex cover and an edge cover, respectively. A t-total verte...
Henning Fernau, David Manlove
ICDE
2000
IEEE
168views Database» more  ICDE 2000»
14 years 8 months ago
PAC Nearest Neighbor Queries: Approximate and Controlled Search in High-Dimensional and Metric Spaces
In high-dimensional and complex metric spaces, determining the nearest neighbor (NN) of a query object ? can be a very expensive task, because of the poor partitioning operated by...
Paolo Ciaccia, Marco Patella
TCBB
2010
106views more  TCBB 2010»
13 years 2 months ago
Quantifying the Degree of Self-Nestedness of Trees: Application to the Structural Analysis of Plants
In this paper we are interested in the problem of approximating trees by trees with a particular self-nested structure. Self-nested trees are such that all their subtrees of a give...
Christophe Godin, Pascal Ferraro
ISAAC
2003
Springer
133views Algorithms» more  ISAAC 2003»
14 years 17 days ago
The Intractability of Computing the Hamming Distance
Given a string x and a language L, the Hamming distance of x to L is the minimum Hamming distance of x to any string in L. The edit distance of a string to a language is analogous...
Bodo Manthey, Rüdiger Reischuk
ICMCS
2009
IEEE
205views Multimedia» more  ICMCS 2009»
13 years 5 months ago
Bregman vantage point trees for efficient nearest Neighbor Queries
Nearest Neighbor (NN) retrieval is a crucial tool of many computer vision tasks. Since the brute-force naive search is too time consuming for most applications, several tailored d...
Frank Nielsen, Paolo Piro, Michel Barlaud