Kseniya Schemeleva

• PhD
• Professor (Associate) at Lumière University Lyon 2

A stochastic multi-product lot-sizing and sequencing problem is studied. Two kinds of uncertainties are integrated into the model: defective items due to the process imperfections and random lead times because of randomly arising machine breakdowns and uncertain repair times. There are also sequence-dependent set-up times between two items of diffe...

A stochastic multi-product lot-sizing and sequencing problem is considered. Two kinds of uncertainties are integrated into the model: defectives items due to the machines' imperfections and random lead time because of randomly arising breakdowns and uncertain repair time. There are also sequence-dependent set-up times between two items of different...

We consider a stochastic multi-product sequencing and lot-sizing problem. The two following types of uncertainties are taken into account: random lead time due to machine breakdowns and random yield because of rejects. It is assumed that there is a sequence dependent setup time between lots of different products. The goal is to maximize the probabi...

A single-machine multi-product lot-sizing and sequencing problem is studied. In this problem, items of n different products are manufactured in lots. Demands for products as well as per item processing times are known. There are losses of productivity because of non perfect production. There is also a sequence dependent set-up time between lots of...

We characterize the class of intersection graphs of hypergraphs with a rank of at most 3 and a multiplicity of at most 2 by means of a finite list of forbidden induced subgraphs in the class of threshold graphs.

The paper deals with a stochastic multi-product sequencing and lot-sizing problem for a line that produces items in lots. Two types of uncertainties are considered: random lead time induced by machine breakdowns and random yield to take into account part rejects. In addition, sequence dependent setup times are also included. This study focuses on m...

Uncertainties in production and assembly processes have a significant influence on performance. When one speaks about uncertainties, in most of the cases it implies machine breakdowns, defective items or different uncertainties in procurement. However, especially in manual production, each realistic model should also take into account and treat hum...

La mesure de la performance a été un sujet d’étude important durant les dernières années ; cet intérêt est dû à l’aspect essentiel que revêt l’évaluation de la performance dans le pilotage de l’entreprise. Le principal écueil que rencontrent les industriels est de trouver une méthode qui leur permette de mesurer la performance agrégée d’une partie...

Numerous decisions must be taken within the framework of conception, optimization and management of production system or supply chain. With this aim, managers need to model their systems. Unfortunately, data can be imprecise at the design stage or can evolve during the exploitation of the system. However, data can have a deep impact on the system p...

A single machine multi-product lot-sizing and sequencing problem for a single period is studied. In this problem, n different product types are manufactured in lots. A demand for good quality items as well as a per item processing time are known for all product types. There is a sequence dependent set-up time between lots of different types. Machin...

This paper deals with the multi-product lot-sizing and sequencing problem under uncertainties. The production line considered contains several machines placed sequentially (a flow-shop). It is assumed that each machine can process defective items (yield for each product is random), also it can breakdown. The time between breakdowns and repair times...

http://www.euro2010lisbon.org/EUROXXIVProgramme.pdf

This chapter addresses the problem of optimal lot-sizing and sequencing of manufacturing items under uncertainties. A state of the art is presented and a case study is developed. For the case study, the following factors are taken into account: processing and set-up times, random machine breakdowns and rejects. The goal is to minimize the cost and...

http://www.enim.fr/mosim2010/articles/224.pdf

http://spiderman-2.laas.fr/roadef2010/actes/resumes/p267.pdf

http://www.euro-2009.de/final_programme.pdf

http://www.emse.fr/spip/IMG/pdf/RR_2009-500-004_abstract.pdf

We study a problem of lot-sizing and sequencing several discrete products on a single machine. A sequence dependent setup time is required between the lots of different products. The machine is imperfect in the sense that it can produce defective items, and furthermore breakdown. The number of the defective items for each product is given as an int...

A problem of lot-sizing and sequencing several products on a single machine is studied. The machine is imperfect in two senses: it can produce defective items and it can breakdown. The number of defective items for each product is given as an integer valued non-decreasing function of the manufactured quantity. The total machine breakdown time is gi...