Assortment planning for multiple chain stores

Autor: Michael Hopf, Clemens Thielen, Hans Corsten, Benedikt Kasper

Publikováno v: OR Spectrum. 40:875-912

In retail, assortment planning refers to selecting a subset of products to offer that maximizes profit. Assortments can be planned for a single store or a retailer with multiple chain stores where demand varies between stores. In this paper, we assum

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc1c7742d097b568b2061f6515e0a62c
https://doi.org/10.1007/s00291-017-0496-9

The quadratic shortest path problem: complexity, approximability, and solution methods

Autor: André Chassein, Davide Frey, Federico Malucelli, Michael Hopf, Borzou Rostami, Christoph Buchheim, Marc Goerigk

Publikováno v: European Journal of Operational Research
European Journal of Operational Research, 2018, 268 (2), pp.473-485. ⟨10.1016/j.ejor.2018.01.054⟩
European Journal of Operational Research, Elsevier, 2018, 268 (2), pp.473-485. ⟨10.1016/j.ejor.2018.01.054⟩

International audience; We consider the problem of finding a shortest path in a directed graph with a quadratic objective func- tion (the QSPP). We show that the QSPP cannot be approximated unless P = NP . For the case of a convex objective function

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2276c1c30ea2aa72e085e330fa74921e
https://inria.hal.science/hal-01781605

Integration of Virtualized Environments in PDM Systems for Embedded Software Product Development

Autor: Jivka Ovtcharova, Michael Hopf

Publikováno v: Procedia CIRP. 11:346-351

The number of products with embedded software increases across all application areas continuously. Thus, the complexity between the hardware and software is steadily increasing. This leads to an increment of software defects. Therefore, new approache

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8cbe22114b1b5bc223b299e0b397d25
https://doi.org/10.1016/j.procir.2013.07.014

Integration of Mobile Device Features in Product Data Management Systems

Autor: Jens Michael Hopf

Publikováno v: IFIP Advances in Information and Communication Technology ISBN: 9783319546599
PLM

Mobile devices have evolved rapidly in recent years and have become an everyday commodity. The young mobile PLM market is still in its infancy. At present, companies have covered their business processes with stationary workstations while mobile busi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0d87aaf0d043a10567fe0db1c7333f7
https://doi.org/10.1007/978-3-319-54660-5_30

Sanctuary : A Postapocalyptic Novel

Autor: G. Michael Hopf

Book 3 of the New World SeriesSurviving the attack proved to be more than they could have imagined… Months after a super-EMP attack devastated the United States, the country is now unrecognizable. Major cities are run by gangs, survivors are dying