Williams H.P.

H.P. Williams

Information about the author H.P. Williams will soon be added to the site.
Found 13 papers in total
Representatons of the all_different predicate of constraint satisfaction in integer programming
Representatons of the all_different predicate of constraint satisfaction in integer programming
2001
The use of predicates to state constraints in Constraint Satisfaction is explained....
Fairness versus efficiency in charging for the use of common facilities
Fairness versus efficiency in charging for the use of common facilities
2002
The problem of efficiency vs fairness is considered in relation to the splitting of...
Representations of the all_different predicate of constraint satisfaction in integer programming
Representations of the all_different predicate of constraint satisfaction in integer programming
2001
The use of predicates to state constraints in Constraint Satisfaction is explained....
Formulae for the L0, L1 and L∞ norms
Formulae for the L0, L1 and L∞ norms
1999
The lack of ‘closed form’ solutions for the general linear models...
The splitting of variables and constraints in the formulation of integer programming models
The splitting of variables and constraints in the formulation of integer programming models
1997
The splitting of variables in an integer programming model into the sum of other...
The work of Professor Steven Vajda 1901–1995
The work of Professor Steven Vajda 1901–1995
1998
Steven Vajda, who died in Brighton on 10 December 1995, played a major part for 50...
Integer programming and pricing revisited
Integer programming and pricing revisited
1997
Three applications of duality are mentioned: mathematical, computational, and...
An alternative explanation of disjunctive formulations
An alternative explanation of disjunctive formulations
1994
The purpose of this paper is to explain the property of Disjunctive Formulations for...
Organizing a social event-A difficult problem of combinatorial optimization
Organizing a social event-A difficult problem of combinatorial optimization
1996
This interesting problem arose in the context of organizing a ‘progressive...
The elimination of integer variables
The elimination of integer variables
1992
It is pointed out that the projection of a Linear Programme (LP) into a lower...
The practical conversion of Linear Programs to Network Flow Models
The practical conversion of Linear Programs to Network Flow Models
1991
A practical algorithm for converting Linear (and Integer) Programs to Minimum Cost...
How important are models to operational research?
How important are models to operational research?
1989
This paper starts from the assumption that the use of models is central to the...
Constructing Integer Programming models by the Predicate Calculus
Constructing Integer Programming models by the Predicate Calculus
1989
A modelling language for Integer Programming (IP) based on the Predicate Calculus is...
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