Dr. Christian Gahm

Assistant professor
Prof. Dr. Axel Tuma: Production & Supply Chain Management
Phone: +49 821 598 - 4359
Email: christian.gahm@wiwi.uni-augsburg.de
Room: 1437 (J)
Visiting hours: By appointment
Address: Universitätsstraße 16, 86159 Augsburg

Short bio

Christian Gahm, born in 1979, studied Applied Computer Science at the University of Augsburg with a focus on software engineering and programming languages as well as communication systems and systems-related computer science. Since November 2006, he has been a research associate at the Chair of Production & Supply Chain Management. Since his doctorate in 2010, Mr. Gahm has been leading the research group "Production Management" and is striving for his habilitation. In the area of research, Mr. Gahm is concerned with the development of problem-specific scheduling algorithms, energy-oriented production planning and decision support or advanced planning systems in operational practice. In addition to classical courses (lectures and seminars) in the areas of supply chain management and operations management, Mr. Gahm is also responsible for the organization and implementation of the course offerings regarding ERP systems (SAP) at the Faculty of Business and Economics. The transfer of knowledge from research results and the latest methods into business practice is of great concern to him and has already led to great success in many practical projects.

 

 

Research topics:
  • Decision-Support- and Advanced-Planning-Systems - Design, Implementation, Planning Processes
  • Development of (tailor-made) solution methods / algorithms
  • Energy-oriented/sustainable scheduling
  • Application of robust planning methods on operational production planning tasks
Talks:
  • Ganschinietz, C.; Gahm, C.; Tuma, A. (2018): Planning energy conversion units for manufacturing companies. International Conference on Operations Research (OR2018), Brussels (Belgium), September 12-14. 2018.
  • Wahl, S.; Gahm, C.; Tuma, A. (2018): Minimizing total tardiness on a serial-batch processing machine with incompatible job families defining sequence-dependent batch setup times. International Conference on Operations Research (OR2018), Brussels (Belgium), September 12-14. 2018.
  • Kanet, J. J.; Gahm, C.; Andris, R.; A. Tuma (2015): On Time by Design: The Research Behind Production Scheduling. University of Dayton 6th Annual STARS Symposium, September 17. 2015.
  • Kanet J. J.; Gahm, C. (2015): Job Shop Scheduling with Full Lot Streaming. International Conference on Operations Research, Wien (Austria), September 1-4. 2014.
  • Gahm, C. (2014): A new Java Framework for Resource Scheduling Problems. International Conference on Operations Research, Aachen (Germany), September 2-5. 2014.
  • Denz, F.; Gahm, C. (2014): Improving energy efficiency by integrating energy aspects into short-term production planning. International Conference on Operations Research, Aachen (Germany), September 2-5. 2014.
  • Kanet, J. J.; Andris, R.;Gahm C.; Tuma A. (2014): Enhanced Precedence Theorems for 1||∑Tj. 14th International Conference on Project Management and Scheduling, Munich (Germany), March 30 - April 2. 2014.
  • Gahm, C. (2014): JFORS – A Java Framework for Resource Scheduling. Sitzung der AG Projektmanagement und Scheduling der Gesellschaft für Operations Research (GOR): Ansätze zur Ablaufplanung und Projektplanung im Logistikumfeld, Augsburg (Germany), February 27 - March 1. 2014.
  • Gahm, C.; Dünnwald, B.; Sahamie, R. (2012): A simulation-based robust resource allocation planning approach for special purpose machinery. Business Research (BuR) Conference, Magdeburg (Germany), February 27-28. 2012.
  • Gahm. C.; Dünnwald, B.; Sahamie, R. (2012): A multi-criteria master production scheduling approach for special purpose machinery. 17th International Working Seminar on Production Economics, Innsbruck (Austria), February 20-24. 2012.
  • Gahm, C. (2011): A Robust Planning Approach for Final Assembly in Special Purpose Machinery. Conference for the International Federation of Operational Research Societies (IFORS 2011), Melbourne (Australia), July 10-15. 2001.
  • Tuma, A.; Gahm, C.; Schweiger, K. (2011): Operative Make-Or-Buy-Entscheidungen bei der Transportplanung von Großhändlern. Vortrag auf der Wintertagung der WK Logistik, Berlin (Germany), Januar 15. 2011.

Publications

Christian Gahm
2022 | 2021 | 2020 | 2019 | 2017 | 2016 | 2015 | 2014 | 2012 | 2011 | 2010 | 2009

2022

Christian Gahm, Aykut Uzunoglu, Stefan Wahl, Chantal Ganschinietz and Axel Tuma
Applying machine learning for the anticipation of complex nesting solutions in hierarchical production planning

BibTeX | RIS | DOI

2021

Christian Gahm, Chantal Ganschinietz, Florian Denz and Axel Tuma
A flexible approach for the dimensioning of on-site energy conversion systems for manufacturing companies

BibTeX | RIS | DOI

Christian Gahm, Stefan Wahl and Axel Tuma
Scheduling parallel serial-batch processing machines with incompatible job families, sequence-dependent setup times and arbitrary sizes

BibTeX | RIS | DOI

2020

Christian Gahm
A conceptual framework for cloud-based advanced planning systems

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2019

Christian Gahm, John J. Kanet and Axel Tuma
On the flexibility of a decision theory-based heuristic for single machine scheduling

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2017

Christian Gahm, Christian Brabänder and Axel Tuma
Vehicle routing with private fleet, multiple common carriers offering volume discounts, and rental options

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2016

Christian Gahm, Florian Denz, Martin Dirr and Axel Tuma
Energy-efficient scheduling in manufacturing companies: a review and research framework

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2015

Markus Rager, Christian Gahm and Florian Denz
Energy-oriented scheduling based on Evolutionary Algorithms

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2014

Christian Gahm, Bastian Dünnwald and Ramin Sahamie
A multi-criteria master production scheduling approach for special purpose machinery

PDF | BibTeX | RIS | DOI

John J. Kanet, Ralph Andris, Christian Gahm and Axel Tuma
Enhanced precedence theorems for the one-machine total tardiness problem

PDF | BibTeX | RIS | URL

Stefan Bensch, Ralph-Josef Andris, Christian Gahm and Axel Tuma
IT outsourcing: an IS perspective

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2012

Christian Gahm, R. Sahamie and T. Straub
Materialwirtschaft, Logistik und Supply Chain Management

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Christian Gahm, R. Sahamie and Thomas Straub
Produktion

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2011

Christian Gahm and Jens Kruse
Konzeption und Umsetzung eines DSS zur robusten Ressourcenbelegungsplanung im Spezialmaschinenbau

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2010

Christian Gahm
Robuste Ressourcenbelegungsplanung bei der Reihenmontage von Spezialmaschinen: Konzeption und Umsetzung eines Decision-Support-Systems

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2009

Dominik Böhnlein, Christian Gahm and Axel Tuma
A hybrid meta-heuristic for the VRPTW with cluster-dependent tour starts in the newspaper industry

PDF | BibTeX | RIS | DOI

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