This proceedings volume contains a selection of papers presented at the OR 98 conference that was held at the Swiss Federal Institute of Technology (ETH) in Zurich from August 31-September 3, 1998. The selection of papers included in this volume reflects well the number of papers in the...

0. Prerequisites -- 1. Linear Programming. -- 2. Nonlinear Programming -- 3. Measure Theory and Probability Theory -- I. Introduction -- II. Distribution Problems -- 1. The General Case -- 2. Special Problems -- III. Two Stage Problems -- 1. The General Case -- 2. The Fixed Recourse Case -- 3....

Optimization problems arising in practice usually contain several random parameters. Hence, in order to obtain optimal solutions being robust with respect to random parameter variations, the mostly available statistical information about the random parameters should be considered already at the...

I. Theoretical Results -- Stochastic-Parametric Linear Programs II -- A Necessary Condition for Continuity in Parametric Linear Programming -- On Parametric Linear Optimization IV. Differentiable Parameter Functions -- Conditions for Optimality in Multi-Stage Stochastic Programming Problems -- A...