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DATESO
2004
81views Database» more  DATESO 2004»
15 years 8 months ago
Pivoting M-tree: A Metric Access Method for Efficient Similarity Search
In this paper pivoting M-tree (PM-tree) is introduced, a metric access method combining M-tree with the pivot-based approach. While in M-tree a metric region is represented by a hy...
Tomás Skopal
CONCUR
2010
Springer
15 years 7 months ago
Bisimilarity of One-Counter Processes Is PSPACE-Complete
A one-counter automaton is a pushdown automaton over a singleton stack alphabet. We prove that the bisimilarity of processes generated by nondeterministic one-counter automata (wit...
Stanislav Böhm, Stefan Göller, Petr Janc...
CORR
2008
Springer
92views Education» more  CORR 2008»
15 years 6 months ago
On sign conditions over real multivariate polynomials
We present a new probabilistic algorithm to find a finite set of points intersecting the closure of each connected component of the realization of every sign condition over a fami...
Gabriela Jeronimo, Daniel Perrucci, Juan Sabia
CORR
2008
Springer
135views Education» more  CORR 2008»
15 years 6 months ago
The Isomorphism Problem for Planar 3-Connected Graphs is in Unambiguous Logspace
The isomorphism problem for planar graphs is known to be efficiently solvable. For planar 3-connected graphs, the isomorphism problem can be solved by efficient parallel algorithm...
Thomas Thierauf, Fabian Wagner
COMBINATORICS
2007
59views more  COMBINATORICS 2007»
15 years 6 months ago
New Optimal Constant Weight Codes
In 2006, Smith et al. published a new table of constant weight codes, updating existing tables originally created by Brouwer et al. This paper improves upon these results by fill...
Igor Gashkov, D. Taub