Country: Germany

Found 3096 papers in total
Scheduling trams in the morning
Scheduling trams in the morning
1999,
In this note, we prove NP -completeness of the following problem: given a set of trams...
Time complexity of single- and identical parallel-machine scheduling with GERT network precedence constraints
Time complexity of single- and identical parallel-machine scheduling with GERT network precedence constraints
1999,
In this paper we deal with the time complexity of single- and identical...
Scheduling identical jobs with chain precedence constraints in two uniform machines
Scheduling identical jobs with chain precedence constraints in two uniform machines
1999,
The problem of scheduling identical jobs with chain precedence constraints on two...
Models and algorithms for the 2-dimensional cell suppression problem in statistical disclosure control
Models and algorithms for the 2-dimensional cell suppression problem in statistical disclosure control
1999,
We study the problem of protecting sensitive data in a statistical two-dimensional...
A two-machine permutation flow shop scheduling problem with buffers
A two-machine permutation flow shop scheduling problem with buffers
1998,
Problems with ‘blocking’ (limited intermediate storage space) are used...
Preemptive job-shop scheduling problems with a fixed number of jobs
Preemptive job-shop scheduling problems with a fixed number of jobs
1999,
It is shown that the two machine preemptive job-shop problem with mean flow-time or...
A tabu search algorithm for weakly heterogeneous container loading problems
A tabu search algorithm for weakly heterogeneous container loading problems
1998,
The paper presents a tabu search algorithm (TSA) for weakly heterogeneous container...
Planning stability under (s, S) inventory control rules
Planning stability under (s, S) inventory control rules
1998,
The problem of planning instablity caused by new and actualized data in material...
Explanation of observed high implicit discount rates of conservation investments using the theory of ‘investment under uncertainty’
Explanation of observed high implicit discount rates of conservation investments using the theory of ‘investment under uncertainty’
1998,
A well documented observation is that consumers (and also firms) use high implicit...
A note on ‘On Pareto optima, the Fermat–Weber problem, and polyhedral gauges’
A note on ‘On Pareto optima, the Fermat–Weber problem, and polyhedral gauges’
1999,
We show by counterexample that one of the results in the paper ‘On Pareto...
Optimal scrap combination for steel production
Optimal scrap combination for steel production
1998,
In steel production, scrap metal is used for cooling the enormous quantity of heat...
Optimal R&D investments of the firm
Optimal R&D investments of the firm
1998,
This paper examines irreversible decisions on innovative activities where it takes...
The elimination algorithm for the problem of optimal stopping
The elimination algorithm for the problem of optimal stopping
1999,
We present a new algorithm for solving the optimal stopping problem. The algorithm is...
Blackwell optimality in the class of stationary policies in Markov decision chains with a Borel state space and unbounded rewards
Blackwell optimality in the class of stationary policies in Markov decision chains with a Borel state space and unbounded rewards
1999,
This paper is the first part of a study of Blackwell optimal policies in Markov...
A note on the structure of value spaces in vector-valued Markov decision processes
A note on the structure of value spaces in vector-valued Markov decision processes
1999,
For a vector-valued Markov decision process with discounted reward criterion, we study...
Nonstationary denumerable state Markov decision processes – with average variance criterion
Nonstationary denumerable state Markov decision processes – with average variance criterion
1999,
In this paper, we consider the nonstationary Markov decision processes with average...
Asymptotic linear programming and policy improvement for singularly perturbed Markov decision processes
Asymptotic linear programming and policy improvement for singularly perturbed Markov decision processes
1999,
In this paper we consider a singularly perturbed Markov decision process with finitely...
Set-valued approximations and Newton's methods
Set-valued approximations and Newton's methods
1999,
We introduce a point-based set-valued approximation for a mapping from R n to R m ....
Legendre-type optimality conditions for a variational problem with inequality state constraints
Legendre-type optimality conditions for a variational problem with inequality state constraints
1999,
We extend Legendre condition to a variational problem with inequality state...
A two-cut approach in the analytic center cutting plane method
A two-cut approach in the analytic center cutting plane method
1999,
We analyze the two cut generation scheme in the analytic center cutting plane method....
Estimation of prospective recycling costs of industrial products with the help of fuzzy linear programming
Estimation of prospective recycling costs of industrial products with the help of fuzzy linear programming
1998,
Following the new German recycling and waste management act, producers are responsible...
A unified approach to the existing three types of variational principles for vector valued functions
A unified approach to the existing three types of variational principles for vector valued functions
1998,
This paper attempts to give a unified approach to the existing three types of...
Global and polynomial-time convergence of an infeasible-interior-point algorithm using inexact computation
Global and polynomial-time convergence of an infeasible-interior-point algorithm using inexact computation
1999,
In this paper, we propose an infeasible-interior-point algorithm for solving a...
A global-filtering algorithm for linear programming problems with stochastic elements
A global-filtering algorithm for linear programming problems with stochastic elements
1998,
In this paper, an interior-point based global filtering algorithm is proposed to solve...
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