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COMBINATORICS
2006
102views more  COMBINATORICS 2006»
14 years 9 months ago
Identifying X-Trees with Few Characters
Previous work has shown the perhaps surprising result that, for any binary phylogenetic tree T , there is a set of four characters that define T . Here we deal with the general ca...
Magnus Bordewich, Charles Semple, Mike A. Steel
ICML
2004
IEEE
15 years 10 months ago
A hierarchical method for multi-class support vector machines
We introduce a framework, which we call Divide-by-2 (DB2), for extending support vector machines (SVM) to multi-class problems. DB2 offers an alternative to the standard one-again...
Volkan Vural, Jennifer G. Dy
STACS
1999
Springer
15 years 2 months ago
Balanced Randomized Tree Splitting with Applications to Evolutionary Tree Constructions
We present a new technique called balanced randomized tree splitting. It is useful in constructing unknown trees recursively. By applying it we obtain two new results on efficient ...
Ming-Yang Kao, Andrzej Lingas, Anna Östlin
ICASSP
2011
IEEE
14 years 1 months ago
Optimal structure of memory models for lossless compression of binary image contours
In this paper we study various chain codes, which are representations of binary image contours, in terms of their ability to compress in the best way the contour information using...
Ioan Tabus, Septimia Sarbu
AAAI
2004
14 years 11 months ago
Tractable Tree Convex Constraint Networks
A binary constraint network is tree convex if we can construct a tree for the domain of the variables so that for any constraint, no matter what value one variable takes, all the ...
Yuanlin Zhang, Eugene C. Freuder