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ISAAC
1992
Springer
125views Algorithms» more  ISAAC 1992»
15 years 10 months ago
A Simple Test for the Consecutive Ones Property
A (0,1)-matrix satisfies the consecutive ones property if there exists a column permutation such that the ones in each row of the resulting matrix are consecutive. Booth and Lueke...
Wen-Lian Hsu
ASIACRYPT
2007
Springer
16 years 26 days ago
Black-Box Extension Fields and the Inexistence of Field-Homomorphic One-Way Permutations
The black-box field (BBF) extraction problem is, for a given field F, to determine a secret field element hidden in a black-box which allows to add and multiply values in F in ...
Ueli M. Maurer, Dominik Raub
DBPL
1993
Springer
141views Database» more  DBPL 1993»
15 years 10 months ago
Some Properties of Query Languages for Bags
In this paper we study the expressive power of query languages for nested bags. We de ne the ambient bag language by generalizing the constructs of the relational language of Brea...
Leonid Libkin, Limsoon Wong
FOIS
2006
15 years 8 months ago
Formalizing Ontology Alignment and its Operations with Category Theory
An ontology alignment is the expression of relations between different ontologies. In order to view alignments independently from the language expressing ontologies and from the te...
Antoine Zimmermann, Markus Krötzsch, Jé...
CORR
2006
Springer
108views Education» more  CORR 2006»
15 years 6 months ago
Two polygraphic presentations of Petri nets
: This document gives an algebraic and two polygraphic translations of Petri nets, all three providing an easier way to describe reductions and to identify some of them. The first ...
Yves Guiraud