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CORR
1998
Springer
110views Education» more  CORR 1998»
13 years 4 months ago
Ultrametric Distance in Syntax
Phrase structure trees have a hierarchical structure. In many subjects, most notably in taxonomy such tree structures have been studied using ultrametrics. Here syntactical hierar...
Mark D. Roberts
ESA
1999
Springer
89views Algorithms» more  ESA 1999»
13 years 9 months ago
On the Informational Asymmetry between Upper and Lower Bounds for Ultrametric Evolutionary Trees
Abstract. This paper addresses the informational asymmetry for constructing an ultrametric evolutionary tree from upper and lower bounds on pairwise distances between n given speci...
Ting Chen, Ming-Yang Kao
IGPL
2011
12 years 11 months ago
Existentially equivalent cyclic ultrametric spaces and cyclically valued groups
The notions of ultrametric distances and cyclic valuations appear when the set of values of the distance map is a cyclically ordered set. These structures can be described as subsp...
Gérard Leloup
SCALESPACE
1999
Springer
13 years 9 months ago
Multiscale Morphological Segmentations Based on Watershed, Flooding, and Eikonal PDE
The classical morphological segmentation paradigm is based on the watershed transform, constructed by flooding the gradient image seen as a topographic surface. For flooding a to...
Fernand Meyer, Petros Maragos
MFCS
2005
Springer
13 years 10 months ago
Reconstructing an Ultrametric Galled Phylogenetic Network from a Distance Matrix
Abstract. Given a distance matrix M that specifies the pairwise evolutionary distances between n species, the phylogenetic tree reconstruction problem asks for an edge-weighted ph...
Ho-Leung Chan, Jesper Jansson, Tak Wah Lam, Siu-Mi...