2492 search results - page 19 / 499 » On the General Signature Trees |
CORR
2010
Springer
13 years 7 months ago
2010
Springer
We study tree languages that can be defined in 2. These are tree languages definable by a first-order formula whose quantifier prefix is , and simultaneously by a first-order for...
ESA
2010
Springer
13 years 8 months ago
2010
Springer
We study a wide generalization of two classical problems, the Huffman Tree and Alphabetic Tree Problem. We assume that the cost caused by the ith leaf is fi(di), where di is its d...
JCT
2011
13 years 2 months ago
2011
Bona [6] studied the distribution of ascents, plateaux and descents in the class of Stirling permutations, introduced by Gessel and Stanley [14]. Recently, Janson [18] showed the c...
SBRN
2008
IEEE
14 years 1 months ago
2008
IEEE
In this paper we present a system for off-line signature verification. The paper’s contributions are: i) Five distances were calculated and evaluated over the signature databas...
BICOB
2009
Springer
14 years 2 months ago
2009
Springer
Several applications require the joint display of two phylogenetic trees whose leaves are matched by inter-tree edges. This issue arises, for example, when comparing gene trees and...