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CORR
2010
Springer
94views Education» more  CORR 2010»
13 years 3 months ago
Partitions and Coverings of Trees by Bounded-Degree Subtrees
This paper addresses the following questions for a given tree T and integer d 2: (1) What is the minimum number of degree-d subtrees that partition E(T)? (2) What is the minimum n...
David R. Wood
COMPGEOM
2000
ACM
14 years 1 months ago
When crossings count - approximating the minimum spanning tree
We present an (1+ε)-approximation algorithm for computing the minimum-spanning tree of points in a planar arrangement of lines, where the metric is the number of crossings betwee...
Sariel Har-Peled, Piotr Indyk
MFCS
2000
Springer
14 years 7 days ago
Bilinear Functions and Trees over the (max, +) Semiring
Abstract. We consider the iterates of bilinear functions over the semiring (max, +). Equivalently, our object of study can be viewed as recognizable tree series over the semiring (...
Sabrina Mantaci, Vincent D. Blondel, Jean Mairesse
CCCG
2010
13 years 10 months ago
Combinatorial changes of euclidean minimum spanning tree of moving points in the plane
In this paper, we enumerate the number of combinatorial changes of the the Euclidean minimum spanning tree (EMST) of a set of n moving points in 2dimensional space. We assume that...
Zahed Rahmati, Alireza Zarei
LREC
2008
126views Education» more  LREC 2008»
13 years 10 months ago
Tree Distance and Some Other Variants of Evalb
Some alternatives to the standard evalb measures for parser evaluation are considered, principally the use of a tree-distance measure, which assigns a score to a linearity and anc...
Martin Emms