K.G.J. Pauls-Worm

K.G.J. Pauls-Worm
Wageningen University & Research | WUR · Operations Research and Logistics Group

PhD

About

13
Publications
2,703
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128
Citations

Publications

Publications (13)
Conference Paper
Full-text available
There is an increase in initiatives towards more localised food systems, consisting of less complex and shorter supply chains. The expectations are that such food systems reduce carbon emissions and food losses and waste, as well as contribute to healthier diets. It is however not clear to what extent these expectations can be met. This paper aims...
Technical Report
Full-text available
This paper summarizes our findings with respect to order policies for an inventory control problem for a perishable product with a maximum fixed shelf life in a periodic review system, where chance constraints play a role. A Stochastic Programming (SP) problem is presented which models a practical production planning problem over a finite horizon....
Article
We study the practical decision problem of fresh food production with a long production lead time to decide every period (e.g. week) how many items to produce. When a batch is ready for use, its items have a fixed shelf life, after which the items become waste in the sense that they cannot be sold anymore. The demand for (fresh) food products is un...
Conference Paper
This paper studies the computation of so-called order-up-to levels for a stochastic programming inventory problem of a perishable product. Finding a solution is a challenge as the problem enhances a perishable product, fixed ordering cost and non-stationary stochastic demand with a service level constraint. An earlier study [7] derived order-up-to...
Conference Paper
Inventory control implies dynamic decision making. Therefore, dynamic programming seems an appropriate approach to look for order policies. For finite horizon planning, the implementation of service level constraints provides a big challenge. This paper illustrates with small instances the implementation of stochastic dynamic programming (SDP) to d...
Conference Paper
Full-text available
We study the global optimal solution for a planning problem of inventory control of perishable products and non-stationary demand.
Article
Full-text available
The basis of this study is a Stochastic Programming (SP) model derived for a practical case of a specifc inventory control problem for a perishable product. As it contains chance constraints describing the service level, deriving policies for this model is a challenge. In order to find parameter values in an order-up-to level policy, we derive a co...
Article
Full-text available
We study the practical production planning problem of a food producer facing a non-stationary erratic demand for a perishable product with a fixed life time. In meeting the uncertain demand, the food producer uses a FIFO issuing policy. The food producer aims at meeting a certain service level at lowest cost. Every production run a set-up cost is i...
Conference Paper
Full-text available
This paper describes and analyses a Stochastic Programming (SP) model that is used for a specific inventory control problem for a per-ishable product. The decision maker is confronted with a non-stationary random demand for a fixed shelf life product and wants to make an or-dering plan for a finite horizon that satisfies a service level constraint....

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