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SIGMOD
2009
ACM
182views Database» more  SIGMOD 2009»
14 years 7 months ago
3-HOP: a high-compression indexing scheme for reachability query
Reachability queries on large directed graphs have attracted much attention recently. The existing work either uses spanning structures, such as chains or trees, to compress the c...
Ruoming Jin, Yang Xiang, Ning Ruan, David Fuhry
ICDAR
2003
IEEE
14 years 24 days ago
Binary Classification Trees for Multi-class Classification Problems
This paper proposes a binary classification tree aiming at solving multi-class classification problems using binary classifiers. The tree design is achieved in a way that a class ...
Jin-Seon Lee, Il-Seok Oh
ICDT
2007
ACM
105views Database» more  ICDT 2007»
13 years 11 months ago
Unlocking Keys for XML Trees
Abstract. We review key constraints in the context of XML as introduced by Buneman et al. We show that one of the proposed inference rules is not sound in general, and the axiomati...
Sven Hartmann, Sebastian Link
ACSC
2002
IEEE
14 years 14 days ago
Suffix Vector: Space- and Time-Efficient Alternative to Suffix Trees
Suffix trees are versatile data structures that are used for solving many string-matching problems. One of the main arguments against widespread usage of the structure is its spac...
Krisztián Monostori, Arkady B. Zaslavsky, H...
TCBB
2008
107views more  TCBB 2008»
13 years 7 months ago
Progressive Tree Neighborhood Applied to the Maximum Parsimony Problem
Abstract-- The Maximum Parsimony problem aims at reconstructing a phylogenetic tree from DNA sequences while minimizing the number of genetic transformations. To solve this NP-comp...
Adrien Goëffon, Jean-Michel Richer, Jin-Kao H...