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Design and Control of Warehouse Order Picking: a literature review

de Koster, de Koster, M.B.M.; Le-Duc, Le-Duc, T.; … - Erasmus Research Institute of Management (ERIM), … - 2006

Order picking has long been identified as the most labour-intensive and costly activity for almost every warehouse; the cost of order picking is estimated to be as much as 55% of the total warehouse operating expense. Any underperformance in order picking can lead to unsatisfactory service and...

Persistent link: https://www.econbiz.de/10010731445

A simple optimised search heuristic for the job-shop scheduling problem

Fernandes, Susana; Ramalhinho-Lourenço, Helena - Department of Economics and Business, Universitat … - 2007

This paper presents a simple Optimised Search Heuristic for the Job Shop Scheduling problem that combines a GRASP heuristic with a branch-and-bound algorithm. The proposed method is compared with similar approaches and leads to better results in terms of solution quality and computing times.

Persistent link: https://www.econbiz.de/10005704871

A recoverable production planning model

Soto, Juan P.; Ramalhinho-Lourenço, Helena - Department of Economics and Business, Universitat … - 2002

Aware of the importance of developing new alternatives to improve the performance of the companies, our purpose in this paper is to develop a medium term production planning model that deals with the concepts of Partnership and Reverse Logistics. Our model takes advantage of the synergies of...

Persistent link: https://www.econbiz.de/10005772139

On the throughput-WIP trade-off in queueing systems, diminishing returns and the threshold property: A linear programming approach

Niño-Mora, José - Department of Economics and Business, Universitat … - 1998

We present a new unifying framework for investigating throughput-WIP (Work-in-Process) optimal control problems in queueing systems, based on reformulating them as linear programming (LP) problems with special structure: We show that if a throughput-WIP performance pair in a stochastic system...

Persistent link: https://www.econbiz.de/10005772295

A finite-population revenue management model and a risk-ratio procedure for the joint estimation of population size and parameters

Talluri, Kalyan - Department of Economics and Business, Universitat … - 2009

variability of the demand in the model, but researchers and practitioners were willing to overlook this for the benefit of … finite-population model that avoids this problem of fixing T and allows a wider range of demand distributions, while …

Persistent link: https://www.econbiz.de/10005772466

The customer valuations game as a basis for revenue management

Talluri, Kalyan - Department of Economics and Business, Universitat … - 2008

I describe the customer valuations game, a simple intuitive game that can serve as a foundation for teaching revenue management. The game requires little or no preparation, props or software, takes around two hours (and hence can be finished in one session), and illustrates the formation of...

Persistent link: https://www.econbiz.de/10005772556

Solving two production scheduling problems with sequence-dependent set-up times

Noivo, Joao António; Ramalhinho-Lourenço, Helena - Department of Economics and Business, Universitat … - 1998

In todays competitive markets, the importance of good scheduling strategies in manufacturing companies lead to the need of developing efficient methods to solve complex scheduling problems. In this paper, we studied two production scheduling problems with sequence-dependent setups times. The...

Persistent link: https://www.econbiz.de/10005772567

The Effect of Partial Information Sharing in a Two-Level Supply Chain

Chhaing, Huy; Takeda, Eiji - Graduate School of Economics, Osaka University - 2004

that cannot be explained by consumer demand fluctuations (Lee, Padamanabhan and Wang 1997a). Lee, Padamanabhan and Wang … a two-level supply chain consisting of single manufacturer and single retailer with AR(1) end demand, the manufacturer … would benefit when the retailer shared its demand information. This paper considers the eRect of partial information sharing …

Persistent link: https://www.econbiz.de/10005774276

Optimised search heuristic combining valid inequalities and tabu search

Fernandes, Susana; Ramalhinho-Lourenço, Helena - Department of Economics and Business, Universitat … - 2008

This paper presents an Optimised Search Heuristic that combines a tabu search method with the verification of violated valid inequalities. The solution delivered by the tabu search is partially destroyed by a randomised greedy procedure, and then the valid inequalities are used to guide the...

Persistent link: https://www.econbiz.de/10005827495

Maintaining the Service Level by Using the Coordinated Order Model for the Replenishment of Distribution Stocks

Firică, Oana; Deaconu, Alecxandrina; Lefter, Viorel - In: The AMFITEATRU ECONOMIC journal 12 (2010) 28, pp. 675-686

The distribution companies coordinate the multi-item replenishment orders in the view of truck transport to benefit from major cost savings. Yet, the moment of order launching and item allocation can generate stock surplus or shortage, preventing these companies from reaching the established...

Persistent link: https://www.econbiz.de/10008542784