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VLDB
2008
ACM
196views Database» more  VLDB 2008»
14 years 7 months ago
Modelling retrieval models in a probabilistic relational algebra with a new operator: the relational Bayes
This paper presents a probabilistic relational modelling (implementation) of the major probabilistic retrieval models. Such a high-level implementation is useful since it supports ...
Thomas Rölleke, Hengzhi Wu, Jun Wang, Hany Azzam
COMBINATORICS
2006
137views more  COMBINATORICS 2006»
13 years 7 months ago
Three-Letter-Pattern-Avoiding Permutations and Functional Equations
We present an algorithm for finding a system of recurrence relations for the number of permutations of length n that satisfy a certain set of conditions. A rewriting of these rela...
Ghassan Firro, Toufik Mansour
WG
2004
Springer
14 years 22 days ago
Unhooking Circulant Graphs: A Combinatorial Method for Counting Spanning Trees and Other Parameters
It has long been known that the number of spanning trees in circulant graphs with fixed jumps and n nodes satisfies a recurrence relation in n. The proof of this fact was algebra...
Mordecai J. Golin, Yiu-Cho Leung
EUSFLAT
2003
138views Fuzzy Logic» more  EUSFLAT 2003»
13 years 8 months ago
Multirelational linguistic models
This paper regards the recurrent linguistic rule bases. These systems are considered as relational models with several relations. Such representation allows to use relation algebr...
Oleksandr Sokolov