Prof. Dr. Markus Frey

Research

• Digital Supply Chain Management
• Operations Management
• Advanced business analytics in applied areas of, e.g., supply chain management, logistics, service industry, aviation industry etc.
• Operations Research, Machine Learning and Statistics for predictive and prescriptive analytics to enable data and machine driven decision making

Vita

12/2019 – 08/2023: Solution Architect for Advanced Business Analytics, Hilti AG, Schaan, Liechtenstein

04/2018 – 11/2019: Business Analyst, Hilti Deutschland Logistik GmbH, Kaufering, Germany

11/2016 – present: Co-Founder of Analytics, Optimization and Solutions (AOS) UG & Co.KG, Munich, Germany

11/2015 – 03/2018: Senior Business Analyst for Operations Research, BASF SE, Ludwigshafen, Germany

11/2008 – 09/2018: Research Assistant, Technische Universität München, Munich, Germany

04/2010 – 12/2014: Ph.D. Candidate, Technische Universität München, Munich, Germany

10/2003 – 04/2009: Diploma in Mathematics and economics, University of Augsburg, Augsburg, Germany

Publications

Frey C.M.M., Jungwirth A., Frey, M., and Kolisch R. (2022): The Vehicle Routing Problem with Time Windows and Flexible Delivery Locations. Submitted to European Journal of Operational Research

Jungwirth, A., Frey, M., Desaulniers, G., and Kolisch, R. (2021): Exact Branch-Price-and-Cut for a Hospital Therapist Scheduling Problem with Flexible Service Locations and Time Dependent Location Capacity. INFORMS Journal on Computing, doi.org/10.1287/ijoc.2021.1119.

Kiermaier, F., Frey, M. and Bard, J.F. (2020): The flexible break assignment problem for large tour scheduling problems with an application to airport ground handlers. Journal on Scheduling, vol. 23(1), p. 177 – 209, doi.org/10.1007/s10951-019-00635-5.

Youngbum H., Frey, M., Kiermaier, F. and Bard, J.F. (2019): A Stochastic Optimization Approach to Shift Scheduling with Breaks Adjustments. Computers & Operations Research, vol. 107, p. 127 – 139, doi.org/10.1016/j.cor.2019.03.012.

Kallrath, J., Klosterhalfen, S., Frey, M., Buchmann, J., Schreieck, A. and Blackburn, R. (2019): Creating cost transparency to support strategic planning in complex chemical value chains. European Journal of Operational Research, vol. 279(2), p. 605 – 619, doi.org/10.1016/j.ejor.2019.05.034.

Kallrath, J. and Frey, M. (2019): Packing circles into perimeter-minimizing convex hulls. Journal of Global Optimization, vol. 73, p. 723 – 759, doi.org/10.1007/s10898-018-0724-0.

Fink, M, Desaulniers, G., Frey, M., Kiermaier, F. and Kolisch, R. (2019): Column Generation for Vehicle Routing Problems with multiple Synchronization Constraints. European Journal of Operational Research, vol. 272(2), p. 699 – 711, doi.org/10.1016/j.ejor.2018.06.046.

Youngbum, H., Frey, M., Kiermaier, F. and Bard, J.F. (2019): An investigation of shift and break flexibility with real-time break assignments using a rolling horizon approach. Flexible Services and Manufacturing Journal, vol. 31(1), doi.org/10.1007/s10696-018-9305-2.

Kallrath, J. and Frey, M. (2018): Minimal Surface Convex Hulls of Spheres. Vietnam Journal of Mathematics, vol. 46, p. 883 – 913, doi.org/10.1007/s10013-018-0317-8.

Gartner, D., Frey, M. and Kolisch, R. (2018): Hospital-wide Therapist Scheduling and Routing: Exact and Heuristic Methods. IIE Transactions on Healthcare Systems Engineering, vol. 8(4), p. 268 – 279, doi.org 10.1080/24725579.2018.1530314.

Frey, M. Kiermaier, F. and Kolisch, R. (2017): Optimizing Inbound Baggage Handling at Airports. INFORMS Transportation Science, vol. 51(4), p. 1210 – 1225, doi.org/10.1287/trsc.2016.0702.

Frey, M., Kolisch, R. and Artigues, C. (2017): Column Generation for Outbound Baggage Handling at Airports. INFORMS Transportation Science, vol. 51(4), p. 1226 – 1242, doi.org/10.1287/trsc.2017.0739.

Kiermaier, F., Frey, M. and Bard J.F. (2016): Flexible Cyclic Rostering in the Service Industry. IIE Transactions, vol. 48(12), p. 1139 – 1155, doi.org/10.1080/0740817X.2016.1200202.

Frey, M. (2015). Wie Operations-Research einen der effizientesten Flughäfen der Welt noch effizienter macht. OR-News.