Presentations

2026

  • Keller, M.; Stritt, D.: A mixed-integer linear programming based solution approach for the Interfor Dedicated Truck Routing Problem. Modeling and Optimization: Theory and Applications (MOPTA), Bethlehem, Pennsylvania, August 18–19
  • Baumann, P.: A new algorithm for anticlustering in Euclidean spaces. 24th Triennial Conference of the International Federation of Operational Research Societies, Vienna, July 12–17
  • Bersier, M.: Integer programming approaches for a real-world shift planning problem, 24th Triennial Conference of the International Federation of Operational Research Societies, Vienna, July 12–17
  • Mantuano, C.: A matheuristic for large-scale fair facility location. 24th Triennial Conference of the International Federation of Operational Research Societies, Vienna, July 12–17
  • Trotter, L.: A relax-optimize-and-fix matheuristic for resource-constrained project scheduling. 24th Triennial Conference of the International Federation of Operational Research Societies, Vienna, July 12–17
  • Trautmann, N.: Enhancing integer programming models for resource-constrained project scheduling with workload-based constraints. POMS International Conference Sweden, Stockholm, June 23–25
  • Bersier, M.: A real-world shift planning problem from Swiss hospitals. Swiss OR Days, Bern, June 18–19
  • Trautmann, N.: Enhancing integer programming models for resource-constrained project scheduling with workload-based constraints. Optimization Days, Montreal, May 11–13
  • Klein, N.: Enhancing continuous-time MILP models for resource-constrained project scheduling with workload-based constraints. 20th International Workshop on Project Management and Scheduling, Toulouse, April 13–16
  • Trautmann, N.: Mathematical programming in project scheduling (plenary talk). 20th International Workshop on Project Management and Scheduling, Toulouse, April 13–16
  • Trotter, L.: Mathematical programming for workload-balanced scheduling of resource-constrained projects. 20th International Workshop on Project Management and Scheduling, Toulouse, April 13–16
  • Trautmann, N.: An enhancement of mixed-integer linear programming approaches for resource allocation in project networks. 2026 INFORMS Optimization Society Conference, Atlanta, March 20–22
  • Baumann, P.: A fast algorithm for Euclidean maximum weight non-bipartite matching. 15th International Conference on Pattern Recognition Applications and Methods, Marbella, March 2–4

2025

  • Trautmann, N.: An enhancement of mixed-integer linear programming approaches for resource allocation in project networks. IEEE International Conference on Industrial Engineering and Engineering Management, Melbourne, December 7–10
  • Klein, N.: Flow shops with reentry: A theoretical and computational analysis. INFORMS Annual Meeting, Atlanta, October 26–29
  • Trautmann, N.: An enhancement of mixed-integer linear programming approaches for resource allocation in project networks. INFORMS Annual Meeting, Atlanta, October 26–29
  • Bersier, M.: A sequence-based approach to shift planning in Swiss healthcare institutions. 34th EURO Conference, Leeds, June 22–25
  • Klein, N.: Integer programming for multi-mode resource-constrained project scheduling. 34th EURO Conference, Leeds, June 22–25
  • Mantuano, C.: Balancing cost and fairness in large-scale fair clustering. 34th EURO Conference, Leeds, June 22–25
  • Trotter, L.: A two-stage approach for workload-balanced scheduling of resource-constrained projects. 34th EURO Conference, Leeds, June 22–25
  • Trautmann, N.: Workload balancing in project scheduling. 66th Annual CORS Conference, Edmonton, June 9–11
  • Mantuano, C.: Heuristic methods for large-scale fair clustering. Swiss OR Days, Fribourg, June 17–18
  • Trotter, L.: A two-stage approach for workload-balanced scheduling of resource-constrained projects. Swiss OR Days, Fribourg, June 17–18
  • Klein, N.: Flow shops with reentry: The total weighted completion time objective. 35th Annual POMS Conference, Atlanta, May 8–12
  • Trautmann, N.: Workload balancing in project scheduling. 35th Annual POMS Conference, Atlanta, May 8–12

2024

  • Trautmann, N.: Integer programming modeling approaches for workload-balanced resource-constrained project scheduling. IEEE International Conference on Industrial Engineering and Engineering Management, Bangkok, December 15–17
  • Trautmann, N.: Integer programming modeling approaches for workload-balanced resource-constrained project scheduling. 51st International Conference on Computers and Industrial Engineering, Sydney, December 9–11
  • Trautmann, N.: Mixed-integer linear programming for project scheduling with resource-unit related constraints. Scheduling Seminar, Online, December 5
  • Klein, N.: Flow shops with reentry: Total completion time optimal schedules. INFORMS Annual Meeting, Seattle, October 20–23
  • Trautmann, N.: Workload balancing in integer programming models for project scheduling. INFORMS Annual Meeting, Seattle, October 20–23
  • Klein, N.: Flow shops with reentry: Total completion time optimal schedules. 33rd EURO Conference, Copenhagen, June 30–July 3
  • Trautmann, N.: Workload-based extensions of mixed-integer programming models for resource-constrained project scheduling. 33rd EURO Conference, Copenhagen, June 30–July 3
  • Klein, N.: Flow shops with reentry: Total completion time optimal schedules. Swiss OR Days, Geneva, June 27–28
  • Trautmann, N.: Integer programming for project scheduling under storage and renewable resource constraints. IISE Annual Conference, Montreal, May 18–21
  • Klein, N.: Flow shops with reentry: Total completion time optimal schedules. 34th Annual POMS Conference, Minneapolis, April 25–29
  • Trautmann, N.: Workload-based extensions of MIP models for resource-constrained project scheduling. 34th Annual POMS Conference, Minneapolis, April 25–29
  • Klein, N.: Flow shops with reentry: Total completion time optimal schedules. 19th International Workshop on Project Management and Scheduling, Bern, April 2–5

2023

  • Baumann, P.: The MPFCC algorithm: A model-based approach for fair-capacitated clustering. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 18–21
  • Trautmann, N.: Workload-based extensions of MIP models for resource-constrained project scheduling. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 18–21
  • Klein, N.: Planning electric vehicle charging stations under uncertainty. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 18–21
  • Bigler, T.: Locating obnoxious facilities using a mixed-integer programming-based heuristic. INFORMS Annual Meeting, Phoenix, October 15–18
  • Klein, N.: Integer programming for surgery scheduling under uncertainty. INFORMS Annual Meeting, Phoenix, October 15–18
  • Trautmann, N.: Scheduling in project networks with various resource types. INFORMS Annual Meeting, Phoenix, October 15–18
  • Trautmann, N.: Project scheduling under various resource constraints. 10th International Congress on Industrial and Applied Mathematics, Tokyo, August 20–25
  • Klein, N.: Planning electric vehicle charging stations under uncertainty. Modeling and Optimization: Theory and Applications (MOPTA), Bethlehem, Pennsylvania, August 16–18
  • Klein, N.: Integer programming for surgery scheduling under uncertainty. INFORMS Healthcare Conference, Toronto, July 26–28
  • Klein, N.: Benders decomposition for locating electric vehicle charging stations under uncertain demand. Swiss OR Days, Lugano, June 22–23
  • Trautmann, N.: Project scheduling under various resource constraints. CORS Optimization Days, Montreal, May 29–31
  • Klein, N.: Surgery scheduling under uncertainty. 33rd Annual POMS Conference, Orlando, May 21–25
  • Trautmann, N.: Project scheduling under various resource constraints. 33rd Annual POMS Conference, Orlando, May 21–25
  • Bigler, T.: Model-based approaches for large-scale optimization in business operations. Doctoral Seminar in Business Administration, Bern, February 21

2022

  • Baumann, P.: FT-KMEANS: A fast algorithm for fault-tolerant facility location. IEEE International Conference on Industrial Engineering and Engineering Management, Kuala Lumpur, December 7–10
  • Klein, N.: A new deep reinforcement learning algorithm for the online stochastic profitable tour problem. IEEE International Conference on Industrial Engineering and Engineering Management, Kuala Lumpur, December 7–10
  • Trautmann, N.: Multi-site project scheduling under resource constraints. IEEE International Conference on Industrial Engineering and Engineering Management, Kuala Lumpur, December 7–10
  • Baumann, P.: An integer programming-based algorithm for semi-supervised clustering. INFORMS Annual Meeting, Indianapolis, October 16–19
  • Bigler, T.: A binary-linear programming-based matheuristic for the obnoxious p-median problem. INFORMS Annual Meeting, Indianapolis, October 16–19
  • Klein, N.: A novel mixed-integer linear programming model for the multi-mode resource-constrained project scheduling problem. INFORMS Annual Meeting, Indianapolis, October 16–19
  • Klein, N.: A mixed-integer linear programming model for a stochastic elective surgery scheduling problem. Poster presented at: INFORMS Annual Meeting, Indianapolis, October 16–19
  • Trautmann, N.: Multi-site project scheduling under resource constraints: a MILP-based approach. INFORMS Annual Meeting, Indianapolis, October 16–19
  • Klein, N.: Mixed-integer linear programming based solution methods for a stochastic surgery scheduling problem. International Conference on Continuous Optimization (ICCOPT), Bethlehem, Pennsylvania, July 25–28
  • Baumann, P.: An integer optimization-based approach to fair clustering. 32nd European Conference on Operational Research, Espoo, July 3–6
  • Bigler, T.: A matheuristic for the obnoxious p-median problem. 32nd European Conference on Operational Research, Espoo, July 3–6
  • Klein, N.: A novel continuous-time mixed-integer linear programming model for the multi-mode resource-constrained project scheduling problem. 32nd European Conference on Operational Research, Espoo, July 3–6
  • Trautmann, N.: Resource-constrained project scheduling with multiple sites: a continuous-time MILP-based approach. 32nd European Conference on Operational Research, Espoo, July 3–6
  • Trautmann, N.: Resource-constrained project scheduling with multiple sites: a continuous-time MILP-based approach. CORS/INFORMS International Conference, Vancouver, June 5–8
  • Klein, N.: A novel continuous-time mixed-integer linear programming model for the multi-mode resource-constrained project scheduling problem. 18th International Workshop on Project Management and Scheduling, Virtual Conference, April 6–7
  • Baumann, P.: A k-means algorithm for clustering with soft must-link and cannot-link constraints. International Conference on Pattern Recognition Applications and Methods, Virtual Conference, February 3–5

2021

  • Baumann, P.: Minimizing paper waste and setup costs in offset printing. IEEE International Conference on Industrial Engineering and Engineering Management, Virtual Conference, December 13–16
  • Trautmann, N.: Project scheduling with production and consumption of resources. AIChE Annual Meeting, Boston, November 7–11
  • Baumann, P.: Clustering with weighted must-link and cannot-link constraints. INFORMS Annual Meeting, Anaheim, October 24–27
  • Trautmann, N.: A continuous-time linear programming formulation for resource-constrained project scheduling with multiple sites. INFORMS Annual Meeting, Anaheim, October 24–27
  • Baumann, P.: A k-means algorithm for clustering with hard and soft must-link and cannot-link constraints. International Conference on Operations Research, Virtual Conference, August 31–September 3
  • Klein, N.: A branch-and-price algorithm for a delivery network with parcel robots. International Conference on Operations Research, Virtual Conference, August 31–September 3
  • Bigler, T.: A matheuristic approach for the multi-site resource-constrained project scheduling problem. 31st European Conference on Operational Research, Athens, July 11–14
  • Klein, N.: A deep reinforcement learning algorithm for an online stochastic profitable tour problem. 31st European Conference on Operational Research, Athens, July 11–14
  • Baumann, P.: Large-scale customer assignment in direct marketing. 31st Annual POMS Conference, Virtual Conference, April 30–May 5
  • Bigler, T.: A novel matheuristic for the multi-site resource-constrained project scheduling problem. 17th International Workshop on Project Management and Scheduling, Toulouse, April 21–23
  • Gnägi, M.: A continuous-time model for the multi-site resource-constrained project scheduling problem. 17th International Workshop on Project Management and Scheduling, Toulouse, April 21–23

2020

  • Baumann, P.: A binary linear programming-based k-means algorithm for clustering with must-link and cannot-link constraints. IEEM International Conference on Industrial Engineering and Engineering Management, Virtual Conference, December 14–17
  • Schöni, C.: An order-first split-second approach to a novel variant of the cardinality-constrained covering traveling salesperson problem. IEEM International Conference on Industrial Engineering and Engineering Management, Virtual Conference, December 14–17
  • Gnägi, M.: Models and matheuristics for large-scale combinatorial optimization problems. Doctoral Seminar in Business Administration, Bern, June 22

2019

  • Baumann, P.: A binary linear programming-based K-means approach for the capacitated centered clustering problem. IEEM International Conference on Industrial Engineering and Engineering Management, Macau, December 15–18
  • Bigler, T.: Optimizing customer assignments to direct marketing activities: A binary linear programming formulation. IEEM International Conference on Industrial Engineering and Engineering Management, Macau, December 15–18
  • Trautmann, N.: A continuous-time mixed-binary linear programming formulation for the multi-site resource-constrained project scheduling problem. IEEM International Conference on Industrial Engineering and Engineering Management, Macau, December 15–18
  • Trautmann, N.: A lazy-constraints approach to resource-constrained project scheduling. IEEM International Conference on Industrial Engineering and Engineering Management, Macau, December 15–18
  • Trautmann, N.: An order-first split-second approach to an application of the multiple traveling salesman problem. INFORMS Annual Meeting, Seattle, October 20–23
  • Gnägi, M.: A matheuristic for large-scale capacitated clustering. INFORMS Annual Meeting, Seattle, October 20–23
  • Gnägi, M.: A novel continuous-time mixed-binary linear programming formulation for the multi-site resource-constrained project scheduling problem. INFORMS Annual Meeting, Seattle, October 20–23
  • Strub, O.: A matheuristic to build linear regression models for binary classification. INFORMS Annual Meeting, Seattle, October 20–23
  • Bigler, T.: A binary linear programming model for assigning customers to direct marketing activities of a telecommunications provider. Manufacturing and Service Operations Management (MSOM) Conference, Singapore, June 30–July 2
  • Trautmann, N.: An MILP formulation for the multi-mode resource constrained project scheduling problem MRCPSP. 30th European Conference on Operational Research, Dublin, June 23–26
  • Baumann, P.: Comparing two new combinatorial optimization algorithms to leading machine learning techniques. 30th European Conference on Operational Research, Dublin, June 23–26
  • Strub, O.: A matheuristic approach to building linear regression models. 17th Swiss Operations Research Days, Lausanne, June 6–7
  • Baumann, P.: Comparing two new combinatorial optimization algorithms for binary classification to leading machine learning techniques. Colloquia of the Department of Mathematical Statistics and Actuarial Sciences of the University of Bern, May 17
  • Trautmann, N.: An MILP formulation for the multi-mode resource-constrained project scheduling problem MRCPSP. 30th Annual POMS Conference, Washington, D.C., May 2–6
  • Baumann, P.: Optimal customer selection for direct marketing campaigns. 30th Annual POMS Conference, Washington, D.C., May 2–6

2018

  • Baumann, P.: A matheuristic for a real-world variant of the multiple traveling salesman problem. IEEM International Conference on Industrial Engineering and Engineering Management 2018, Bangkok, December 16–19
  • Gnägi, M.: A continuous-time MILP formulation for the multi-mode resource-constrained project scheduling problem. IEEM International Conference on Industrial Engineering and Engineering Management 2018, Bangkok, December 16–19
  • Strub, O.: A Local-branching heuristic for the best subset selection problem in linear regression. IEEM International Conference on Industrial Engineering and Engineering Management 2018, Bangkok, December 16–19
  • Trautmann, N.: A continuous-time unit-based MILP formulation for the resource-constrained project scheduling problem. IEEM International Conference on Industrial Engineering and Engineering Management 2018, Bangkok, December 16–19
  • Baumann, P.: Scaling up similarity-based machine learning models: New geometric algorithms for sparse computation. 29th European Conference on Operational Research, Valencia, July 8–11
  • Trautmann, N.: A novel continuous-time assignment-based MILP formulation for the resource-constrained project scheduling problem RCPSP. 29th Annual POMS Conference, Houston, May 4–7
  • Baumann, P.: A matheuristic for a multi-period home care routing and scheduling problem. 29th Annual POMS Conference, Houston, May 4–7
  • Strub, O.: A matheuristic for the best subset selection problem in linear regression. 29th Annual POMS Conference, Houston, May 4–7
  • Trautmann, N.: A continuous-time assignment-based MILP formulation for the resource-constrained project scheduling problem. 16th International Conference on Project Management and Scheduling, Rome, April 17–20

2017

  • Baumann, P.: Optimal staff assignment and routing in personalized home care. IEEE International Conference on Industrial Engineering and Engineering Management 2017, Singapore, December 10–13
  • Trautmann, N.: An assignment-based continuous-time MILP model for the resource-constrained project scheduling problem. IEEE International Conference on Industrial Engineering and Engineering Management 2017, Singapore, December 10–13
  • Strub, O.: A new MILP formulation for rebalancing enhanced index-tracking portfolios. IEEE International Conference on Industrial Engineering and Engineering Management 2017, Singapore, December 10–13
  • Gnägi, M.: Large-scale clustering using mathematical programming. IEEE International Conference on Industrial Engineering and Engineering Management 2017, Singapore, December 10–13
  • Trautmann, N.: A mixed-integer linear programming formulation of the RCPSP based on explicit assignment and sequencing decisions. INFORMS Annual Meeting 2017, Houston, October 22–25
  • Strub, O.: A hybrid approach to the 1/n portfolio tracking problem. INFORMS Annual Meeting 2017, Houston, October 22–25
  • Trautmann, N.: A novel mixed-integer linear programming formulation for the resource-constrained project scheduling problem. OR 2017 International Conference on Operations Research, Berlin, September 6–8
  • Baumann, P.: Scaling up data mining techniques. 15th Swiss Operations Research Days, Fribourg, June 29–30
  • Rihm, T.: A mathematical programming approach for computing the pathwidth of graphs. 15th Swiss Operations Research Days, Fribourg, June 29–30
  • Strub, O.: A genetic algorithm to construct index-tracking portfolios subject to the UCITS III concentration rule. 15th Swiss Operations Research Days, Fribourg, June 29–30
  • Rihm, T.: Minimizing operational costs of assessment centers. International Symposium on Scheduling 2017, Nagoya, June 23–25
  • Trautmann, N.: An assignment- and sequencing-based mixed-integer linear programming formulation for the resource-constrained project scheduling problem. International Symposium on Scheduling 2017, Nagoya, June 23–25
  • Gnägi, M.: Tracking large stock-market indices. 16th Swiss Operations Research Days, Bern, June 12–13
  • Strub, O.: A genetic algorithm for the UCITS-constrained index-tracking problem. IEEE Congress on Evolutionary Computation, San Sebastián, June 5–8
  • Trautmann, N.: An RCPSP-based heuristic for the short-term planning of assessment centers. 28th Annual POMS Conference, Seattle, May 5–8
  • Baumann, P.: Segmentation of medical images using mathematical programming. 28th Annual POMS Conference, Seattle, May 5–8
  • Rihm, T.: A greedy heuristic for artisan ice cream production scheduling. 28th Annual POMS Conference, Seattle, May 5–8

2016

  • Trautmann, N.: An implementation of the parallel schedule-generation scheme for applying Microsoft Excel’s evolutionary solver to the resource-constrained project scheduling problem RCPSP. IEEE International Conference on Industrial Engineering and Engineering Management, Bali, December 4–7
  • Zimmermann, A.: An MIP-based heuristic for scheduling projects with work-content constraints. IEEE International Conference on Industrial Engineering and Engineering Management, Bali, December 4–7
  • Strub, O.: An application of Microsoft Excel’s evolutionary solver based on a novel chromosome encoding scheme to the 1/N portfolio tracking problem. IEEE International Conference on Industrial Engineering and Engineering Management, Bali, December 4–7
  • Baumann, P.: Sparse-reduced computation for large-scale spectral clustering. IEEE International Conference on Industrial Engineering and Engineering Management, Bali, December 4–7
  • Trautmann, N.: Microsoft Excel evolutionary solver and resource constrained project scheduling. INFORMS Annual Meeting, Nashville, November 13–16
  • Rihm, T.: Facets and valid inequalities for the pathwidth problem. INFORMS Annual Meeting, Nashville, November 13–16
  • Strub, O.: Optimal construction and rebalancing of index-tracking portfolios. INFORMS Annual Meeting, Nashville, November 13–16
  • Zimmermann, A.: An MIP-based heuristic for scheduling projects with work-content constraints. 14th Swiss Operations Research Days, Lugano, September 8–9
  • Rihm, T.: Operational planning of assessment centers: Matheuristic and performance analysis. 14th Swiss Operations Research Days, Lugano, September 8–9
  • Trautmann, N.: An application of Microsoft Excel’s Evolutionary Solver to the RCPSP. International Conference on Operations Research, Hamburg, August 30–September 2
  • Trautmann, N.: A hybrid approach for tracking the 1/N portfolio. 5th International Conference on Continuous Optimization, Tokyo, August 6–11
  • Rihm, T.: A matheuristic for short-term planning of assessment centers. 28th European Conference on Operational Research, Poznan, July 3–6
  • Strub, O.: A hybrid approach combining iterated greedy heuristics and quadratic programming to track the 1/N portfolio. 28th European Conference on Operational Research, Poznan, July 3–6
  • Trautmann, N.: Resource-constrained project scheduling using Microsoft Excel's Evolutionary Solver. 27th Annual POMS Conference, Orlando, May 6–9
  • Rihm, T.: Planning assessment centers: An MIP-based decomposition heuristic. 27th Annual POMS Conference, Orlando, May 6–9
  • Trautmann, N.: Microsoft Excel’s evolutionary solver and the resource-constrained project scheduling problem RCPSP: Solution approach and performance analysis. 15th International Conference on Project Management and Scheduling, Valencia, April 19–22
  • Rihm, T.: A decomposition heuristic for an assessment center planning problem. 15th International Conference on Project Management and Scheduling, Valencia, April 19–22
  • Baumann, P.: Sparse-reduced computation: enabling mining of massively-large data sets. 5th International Conference on Pattern Recognition Applications and Methods, Rome, February 24–26
  • Strub, O.: An iterated greedy heuristic for the 1/N portfolio tracking problem. 5th International Conference on Operations Research and Enterprise Systems, Rome, February 23–25

2015

  • Strub, O.: Index tracking using data-mining techniques and mixed-binary linear programming. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 6–9
  • Baumann, P.: Efficient deployment of mobile detectors for security applications. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 6–9
  • Rihm, T.: Improving fairness in staff assignment: An approach for lexicographic goal programming. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 6–9
  • Trautmann, N.: On an application of Microsoft Excel’s evolutionary solver to the resource-constrained project scheduling problem RCPSP. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 6–9
  • Rihm, T.: An MILP-based heuristic for staff scheduling problems with acceptance levels. International Conference on Operations Research, Vienna, September 1–4
  • Strub, O.: Tracking the 1/N portfolio. International Conference on Operations Research, Vienna, September 1–4
  • Zimmermann, A.: Efficient list-generation techniques for scheduling assessment centers. International Conference on Operations Research, Vienna, September 1–4
  • Rihm, T.: A lexicographic goal programming approach for staff assignment with acceptance levels. Multidisciplinary International Conference on Scheduling: Theory and Applications, Prague, August 25–28
  • Zimmermann, A.: A list-scheduling approach for the planning of assessment centers. Multidisciplinary International Conference on Scheduling: Theory and Applications, Prague, August 25–28
  • Baumann, P.: Using combinatorial optimization for large-scale data mining. 8th International Congress on Industrial and Applied Mathematics, Beijing, August 10–14
  • Trautmann, N.: MILP formulations for order splitting on a multi-slot machine in the printing industry. 8th International Congress on Industrial and Applied Mathematics, Beijing, August 10–14
  • Baumann, P.: Similarity-based machine learning in large-scale data sets. 22nd International Symposium on Mathematical Programming, Pittsburgh, July 12–17
  • Baumann, P.: A hybrid goal programming approach for staff assignment. CORS/INFORMS 2015 Joint International Meeting, Montreal, June 14–17
  • Trautmann, N.: Optimal order splitting on a multi-slot machine in the printing industry. CORS/INFORMS 2015 Joint International Meeting, Montreal, June 14–17
  • Trautmann, N.: Order splitting on a multi-slot machine in the printing industry. 12th International Conference on Computational Management Science, Prague, May 27–29
  • Strub, O.: Index tracking using unsupervised learning and mixed-binary convex programming. 12th International Conference on Computational Management Science, Prague, May 27–29
  • Zimmermann, A.: A heuristic approach for scheduling assessment centers. 13th Swiss Operations Research Days, Zurich, May 7–8
  • Rihm, T.: An integer goal programming approach for a real-world employee scheduling problem. Programme Doctoral en Recherche Opérationnelle, Zinal, January 11–15

2014

  • Baumann, P.; Trautmann, N.: Efficient symmetry-breaking formulations for grouping customer orders in a printing shop. IEEE International Conference on Industrial Engineering and Engineering Management, Malaysia, December 9–12
  • Baumann, P.: A computational comparison of machine learning methods and the supervised normalized cut. INFORMS Annual Meeting, San Francisco, November 9–12
  • Forrer, S.: Optimal order splitting on a multi-slot machine in the printing industry. INFORMS Annual Meeting, San Francisco, November 9–12
  • Strub, O.: Construction of index-tracking portfolios using data mining and linear programming. INFORMS Annual Meeting, San Francisco, November 9–12
  • Rihm, T.: An MILP-based heuristic for the capital-constrained net present value problem. International Conference on Operations Research 2014, Aachen, September 2–5
  • Baumann, P.: Efficient symmetry-breaking formulations for grouping customer orders in a printing shop. Programme Doctoral en Recherche Opérationelle, Zinal, August 31–September 3
  • Baumann, P.: Sparse computation for large-scale binary classification. 20th IFORS Conference, Barcelona, July 13–18
  • Trautmann, N.: Project scheduling with work-content-constraints. 25th Annual POMS Conference, Atlanta, May 9–12
  • Baumann, P.: Efficient binary classification of large data sets. 25th Annual POMS Conference, Atlanta, May 9–12
  • Rihm, T.: A MIP-based decomposition heuristic for resource-constrained project scheduling. 14th International Conference on Project Management and Scheduling, München, March 30–April 2
  • Baumann, P.: A MILP formulation for scheduling of work-content-constrained projects. 14th International Conference on Project Management and Scheduling, München, March 30–April 2
  • Zimmermann, A.: Scheduling of assessment centers: an application of resource-constrained project scheduling. 14th International Conference on Project Management and Scheduling, München, March 30–April 2
  • Trautmann, N.: An application of combinatorial optimization in the printing industry. Industrial Engineering & Operations Research Colloquium, UC Berkeley, Berkeley, January 30
  • Baumann, P.: Portfolio-optimization models for small investors. Center for Risk Management Research Seminar, UC Berkeley, Berkeley, January 28
  • Zimmermann, A.: Operational planning of assessment centers. Programme Doctoral en Recherche Opérationelle, Zinal, January 12–16

2013

  • Baumann, P.; Trautmann, N.: Optimal scheduling of work-content-constrained projects. 2013 IEEE International Conference on Industrial Engineering and Engineering Management, Bangkok, December 10–12
  • Trautmann, N.: Perspectives, experience and visions of academic-industry collaboration in operations research. 2013 IEEE International Conference on Industrial Engineering and Engineering Management, Bangkok, December 10–12
  • Trautmann, N.: An MILP formulation for work-content defined project scheduling. 43rd International Conference on Computers and Industrial Engineering, Hong Kong, October 16–18
  • Baumann, P.: User influence on resource allocation with project management software. 43rd International Conference on Computers and Industrial Engineering, Hong Kong, October 16–18
  • Zimmermann, A.: An MBLP model for scheduling assessment centers. International Conference Operations Research 2013, Rotterdam, September 3–6
  • Trautmann, N.: Resource allocation for a make-to-order production process in the printing industry. International Conference Operations Research 2013, Rotterdam, September 3–6
  • Baumann, P.: Short-term scheduling of make-and-pack production processes: a hybrid method for large-scale instances. 26th European Conference on Operational Research, Rome, July 1–4
  • Trautmann, N.: Planning of a batch production process in the printing industry. 26th European Conference on Operational Research, Rome, July 1–4
  • Baumann, P.: Planning of a make-to-order printing process: MBLP formulation and matching-based savings heuristic. 55th CORS Annual Conference, Vancouver, May 27–29
  • Trautmann, N.: A hybrid approach to large-scale scheduling of make-and-pack production processes. 55th CORS Annual Conference, Vancouver, May 27–29
  • Baumann, P.: A hybrid heuristic for operations scheduling of make-and-pack production processes. 24th Annual POMS Conference, Denver, May 3–6
  • Trautmann, N.: Planning of a continuous production process in the printing industry. 24th Annual POMS Conference, Denver, May 3–6

2012

  • Trautmann, N.: An integer-programming approach to benefit-maximal selection and scheduling of resource-constrained projects. IEEE International Conference on Industrial Engineering and Engineering Management, Hong Kong, December 10–13
  • Baumann, P.: Operations scheduling in make-and-pack production: schedule construction and GA-based priority-rule generation procedures. IEEE International Conference on Industrial Engineering and Engineering Management, Hong Kong, December 10–13
  • Baumann, P.: Planning of a continuous production process in the printing industry. Workshop on large-scale optimization, Vevey, November 21–22
  • Trautmann, N.: A hybrid approach to large-scale short-term scheduling in make-and-pack production. 10th seminar on scheduling computer and manufacturing processes, Frejus, October 21–27
  • Baumann, P.: A hybrid approach to large-scale short-term scheduling in make-and-pack production. 4th International Conference on Information Systems, Logistics and Supply Chain, Québec, August 26–29
  • Trautmann, N.: An application of combinatorial optimization in the printing industry. International Colloquium on Graphs and Optimization 2012, Leukerbad, August 13–17
  • Baumann, P.: A hybrid approach to large-scale short-term scheduling in make-and-pack production. Operational Research Peripatetic Postgraduate Program, Linz, July 16–20
  • Baumann, P.: Planning of a continuous production process in the printing industry. 25th European Conference on Operational Research, Vilnius, July 8–11
  • Trautmann, N.: Heuristic decomposition and LP-based scheduling in make-and-pack production. 25th European Conference on Operational Research, Vilnius, July 8–11
  • Baumann, P.: A priority-rule based genetic algorithm for large-scale short-term scheduling in make-and-pack production. 10th Joint Operations Research Days, Neuchâtel, June 28–29
  • Trautmann, N.: Applying the evolutionary solver of Microsoft Excel to scheduling problems. INFORMS International Conference, Beijing, June 24–27
  • Baumann, P.: A hybrid approach to large-scale short-term scheduling in make-and-pack production. INFORMS International Conference, Beijing, June 24–27
  • Trautmann, N.: A serial scheme for resource-constrained scheduling within Microsoft Project 2010. 23rd Annual POMS Conference, Chicago, April 20–23
  • Baumann, P.: Large-scale short-term scheduling in make-and-pack production: case study and GA-based approach. 23rd Annual POMS Conference, Chicago, April 20–23
  • Brandinu, G.: Sequential selection and heuristic scheduling of multiple resource-constrained projects. 13th International Conference on Project Management and Scheduling, Leuven (BE), April 1–4
  • Baumann, P.: Heuristic decomposition and LP-based scheduling in make-and-pack production. Programme Doctoral en Recherche Opérationnelle, Zinal, January 15–19

2011

  • Trautmann, N.: A serial scheme for minimizing the duration of resource-constrained projects within Microsoft Project. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 6–9
  • Baumann, P.: Heuristic decomposition and LP-based scheduling in make-and-pack production. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 6–9
  • Trautmann, N.: Scheduling in service systems: an application in the event-tourism industry. 41st International Conference on Computers and Industrial Engineering, Los Angeles, October 23–25
  • Baumann, P.: A continuous-time MILP-approach to short-term scheduling of make-and-pack production processes. Operations Research 2011, Zürich, August 31–September 2
  • Brandinu, G.: A scheduling application in the event-tourism industry: MILP model and experimental performance analysis. Operations Research 2011, Zürich, August 31–September 2
  • Trautmann, N.: Portfolio selection models for small investors. Operations Research 2011, Zürich, August 31–September 2
  • Baumann, P.: Minimizing changeover times of a make-and-pack production process: model and case study. Multidisciplinary International Conference on Scheduling : Theory and Applications, Phoenix, August 9–12
  • Brandinu, G.: An MILP-approach to the optimization of event-bus schedules: a scheduling application in the tourism sector. Multidisciplinary International Conference on Scheduling : Theory and Applications, Phoenix, August 9–12
  • Trautmann, N.: Decomposition approaches for multi-stage multi-product batch-production scheduling: a refined batching model. Multidisciplinary International Conference on Scheduling : Theory and Applications, Phoenix, August 9–12
  • Baumann, P.: Portfolio-selection models for small investors. 19th Triennial Conference of the International Federation of Operational Research Societies, Melbourne, July 10–15
  • Brandinu, G.: Optimization of bus schedules in event tourism using mixed-integer linear programming. 19th Triennial Conference of the International Federation of Operational Research Societies, Melbourne, July 10–15
  • Trautmann, N.: A heuristic procedure for resource-constrained project scheduling within Microsoft Project. 19th Triennial Conference of the International Federation of Operational Research Societies, Melbourne, July 10–15
  • Baumann, P.: A continuous-time MILP to compute schedules with minimum changeover times for a make-and-pack production. 21st European Symposium on Computer Aided Process Engineering, Chalkidiki, May 29–June 1
  • Trautmann, N.: Batch sizing in multi-stage, multi-product batch production systems. 21st European Symposium on Computer Aided Process Engineering, Chalkidiki, May 29–June 1
  • Baumann, P.: A continuous-time MILP approach to short-term scheduling of an industrial make-and-pack production process. Ninth Joint Operations Research Days, Bern, May 12–13
  • Brandinu, G.: A two-step heuristic procedure for resource-constrained project scheduling within Microsoft Project. Ninth Joint Operations Research Days, Bern, May 12–13

2010

  • Trautmann, N.: An iterative backward/forward technique for the scheduling of resource-constrained projects within Microsoft Project. IEEE International Conference on Industrial Engineering and Engineering Management, Macau, December 7–10
  • Baumann, P.: An MILP approach to short-term scheduling of an industrial make-and-pack production facility with batch splitting and quality release times. IEEE International Conference on Industrial Engineering and Engineering Management, Macau, December 7–10
  • Brandinu, G.: Scheduling event-bus tours. Eighth Joint Operations Research Days, September 9–10
  • Baumann, P.: Portfolio-selection models for small investors. Eighth Joint Operations Research Days, September 9–10
  • Trautmann, N.: A bidirectional schedule-improvement procedure for Microsoft Project. 40th International Conference on Computers and Industrial Engineering, Awaji, July 25–28
  • Trautmann, N.: Heuristic improvement of Microsoft Project's resource-allocation capabilities. EURO XXIV Conference on Operational Research, Lissabon, July 11–14
  • Trautmann, N.: An iterative forward/backward scheduling method to improve resource allocation in Microsoft Project. ALIO-INFORMS Joint International Meeting, Buenos Aires, June 5–9
  • Baumann, P.; Trautmann, N.: An implementation of the iterative forward/backward scheduling technique in Microsoft Project. 12th International Conference on Project Management and Scheduling, Tours, April 26–28

2009

  • Trautmann, N.: Resource-constrained scheduling of a real project from the construction industry: a comparison of software packages for project management. IEEE International Conference on Industrial Engineering and Engineering Management, Hong Kong, December 8–11
  • Trautmann, N.: Resource-allocation capabilities of software packages for project management. Sitzung der Arbeitsgruppe Projektmanagement und -scheduling der GOR, infineon AG, November 13
  • Trautmann, N.: Resource-allocation capabilities of commercial project management software: an experimental analysis. 39th International Conference on Computers and Industrial Engineering, Troyes, July 5–8
  • Trautmann, N.: Ablaufplanung von Eventmarketing-Veranstaltungen in der Automobilindustrie am Beispiel der Werksabholung von Neuwagen. Wintertagung der Wissenschaftlichen Kommission Operations Research des Vereins der Hochschullehrer für Betriebswirtschaftslehre, Ingolstadt, January 23–24

2008

  • Trautmann, N.: Sequential batching and scheduling of multi-stage multi-product batch plants. Gemeinsame Sitzung der GOR-Arbeitsgruppen Praxis der Mathematischen Optimierung und Supply Chain Management, Rhöndorf, November 20–21
  • Trautmann, N.: Batching and scheduling of multi-stage multi-product batch plants in the chemical industry: a sequential approach. Optimization and Applications Seminar, Eidgenössische Technische Hochschule Zürich, September 22
  • Trautmann, N.: Resource allocation capabilities of commercial software packages for project management: an experimental performance analysis. Sixth Joint Operations Research Days, Ecole Polytechnique Federale de Lausanne, September 11–12
  • Trautmann, N.: Project scheduling with precedence constraints and scarce resources: an experimental analysis of commercial project management software. International Conference Operations Research 2008, Augsburg, September 3–5
  • Trautmann, N.: A decomposition approach to short-term scheduling of multi-purpose batch plants. World Conference on Production and Operations Management, Tokyo, August 5–8
  • Trautmann, N.: A decomposition approach to short-term scheduling of multi-purpose batch processes. European Symposium on Computer Aided Process Engineering, Lyon, June 1–4

2007

  • Trautmann, N.: A MIP/RCPSP decomposition approach to short-term planning in chemical batch production with non-identical parallel processing units. IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, December 2–5
  • Trautmann, N.: A cyclic approach to large-scale short-term planning in chemical batch production. Colloque d'informatique, Université de Fribourg, November 7
  • Trautmann, N.: Virtual Campus-Kleinprojekt "eQM: Quantitative Methoden der Datenanalyse". e-Learning Kolloquium, Universität Bern, October 29
  • Trautmann, N.: A two-level approach for short-term planning of batch production on multi-purpose plants in the chemical industry. Transport and mobility laboratory seminar, Ecole Polytechnique Federale de Lausanne, September 26
  • Trautmann, N.: Combining planning and scheduling of multipurpose batch plants. International Conference Operations Research 2007, Saarbrücken, September 5–7
  • Trautmann, N.: Large-scale short-term planning in chemical batch production. 3rd Multidisciplinary International Conference on Scheduling: Theory and Application, Paris, August 28–31
  • Trautmann, N.: Planning and scheduling of make-and-pack plants: 1. problem and industrial examples. EURO XXII Conference on Operational Research, Prag July 8–11
  • Trautmann, N.: Eine Anwendung der Projektplanung im Event-Marketing. Institut für Wirtschaftswissenschaft, Technische Universität Clausthal, March 20
  • Trautmann, N.: Belegungsplanung einer Make&Pack-Anlage mit kontinuierlicher Prozessführung: Problemstellung und Fallstudie. Supply Network and Logistics Management, St. Leon-Rot, February 2–3

2006

  • Trautmann, N.: Supply chain management and advanced planning in the process industries. International Conference Operations Research 2006, Karlsruhe, September 6–8
  • Trautmann, N.: Planning and scheduling of multipurpose continuous plants. European Symposium on Computer Aided Process Engineering/International Symposium on Process Systems Engineering, Garmisch-Partenkirchen, July 9–13
  • Trautmann, N.: Priority-rule based scheduling of chemical batch processes. European Symposium on Computer Aided Process Engineering/International Symposium on Process Systems Engineering, Garmisch-Partenkirchen, July 9–13
  • Trautmann, N.: Scheduling of make and pack plants: a case study. European Symposium on Computer Aided Process Engineering/International Symposium on Process Systems Engineering, Garmisch-Partenkirchen, July 9–13
  • Trautmann, N.: A cyclic approach to large-scale short-term planning of multipurpose batch plants. EURO XXI Conference on Operational Research, Reykjavik, July 2–5

2005

  • Trautmann, N.: A heuristic method for large-scale batch scheduling in the process industries. International Conference Operations Research 2005, Bremen, September 7–9
  • Trautmann, N.: A MINLP/RCPSP decomposition approach for the short-term planning of batch production. European Symposium on Computer Aided Process Engineering, Barcelona, May 29–June 1
  • Trautmann, N.: Belegungsplanung einer Make&Pack-Anlage: eine Fallstudie aus der Konsumgüterindustrie. GOR-Tagung "Entscheidungsunterstützende Systeme in Supply Chain Management und Logistik", Universität Paderborn, April 22–23
  • Trautmann, N.: Production scheduling in metal casting industry: a case study. Universitat de Valencia, February 11
  • Trautmann, N.: Scheduling of batch production in the process industries. Universitat de Valencia, February 10

2004

  • Trautmann, N.: Operative Planung bei Chargenproduktion. Institut für Wirtschaftswissenschaft, Technische Universität Clausthal, December 3
  • Trautmann, N.: Scheduling event-marketing activities in automotive industry: case study. International Conference Operational Research 2004, Tilburg, September 1–3
  • Trautmann, N.: Scheduling the factory pick-up of new cars. EURO XX Conference on Operational Research, Rhodos, July 4–7
  • Trautmann, N.: Batch scheduling in the process industries. ILOG S.A., Paris, May 7
  • Trautmann, N.: A two–stage approach for batch production scheduling in the process industries. 9th International Workshop on Project Management and Scheduling, Nancy, April 26–28

2003

  • Trautmann, N.: A priority–rule based method for batch production scheduling in the process industries. Operations Research 2003, University of Heidelberg, September 3–5
  • Trautmann, N.: Project scheduling with storage constraints: a priority–rule method. EURO/INFORMS Joint International Conference 2003, Istanbul, July 6–10
  • Trautmann, N.: Resource allocation with standard software for project management. International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering IKM 2003, Weimar, June 10–12
  • Trautmann, N.: Project scheduling with changeover times: schedule feasibility and network flows. International Conference on Industrial Engineering and Production Management IEPM 2003, Porto, May 26–28
  • Trautmann, N.: Fallstudien zur Anlagenbelegungsplanung. Workshop Produktionsplanung in der Prozessindustrie, TU Berlin, April 9

2002

  • Trautmann, N.: Scheduling und Ressourcenallokation: Von der Projektplanung zum Detailed Scheduling in SAP APO. SAP AG, Walldorf, October 21
  • Trautmann, N.: Scheduling of rolling ingots production. Operations Research 2002, Universität Klagenfurt, September 1–5
  • Trautmann, N.: Relaxed scheduling with SAP APO — Industrial context and modelling. The 16th Conference of the International Federation of Operational Research Societies, Edinburgh, July 8–12
  • Trautmann, N.: Storage problems in process scheduling. 18th International Conference on CAD/CAM, Robotics and Factories of the Future, Porto, July 3–5
  • Trautmann, N.: Project scheduling with sequence–dependent changeover times: Model and applications. XV Conference of the European Chapter on Combinatorial Optimisation, Lugano, May 30–June 1
  • Trautmann, N.: Storage problems in process industries. 8th International Workshop on Project Management and Scheduling, Valencia, April 2–5
  • Trautmann, N.: Scheduling der Walzbarrenproduktion im Rheinwerk (VAW AG) mit SAP APO. Colloquium APO in der Prozessindustrie, SAP AG, Walldorf, February 25

2001

  • Trautmann, N.: Scheduling und Ressourcenallokation. SAP AG, Walldorf, October 18
  • Trautmann, N.: Scheduling continuous and discontinuous material flows with intermediate storage restrictions — model and applications. SAP AG, Walldorf, October 11
  • Trautmann, N.: On storage problems in process scheduling. Symposium Operations Research 2001, Universität Duisburg, September 3–5
  • Trautmann, N.: mySCM: e-Teachware for supply chain management. Symposium on Operations Research 2001, Universität Duisburg, September 3–5
  • Trautmann, N.: Anlagenbelegungsplanung in der Prozessindustrie. Vortrag anlässlich der Auszeichnung mit dem Dissertationspreis der GOR, Symposium on Operations Research 2001, Universität Duisburg, September 3–5
  • Trautmann, N.: Components of advanced planning systems for process industries. International Conference on Industrial Engineering and Production Management, Québec City, August 20–23
  • Trautmann, N.: Advanced planning systems: models and methods for production planning and detailed scheduling. 16th International Conference on Production Research, Prag, August 1
  • Trautmann, N.: myPOM — Internetbasierte Teachware zum Produktions- und Operations-Management. Workshop Virtual Operations Research / Management Science, Universität Hohenheim, July 23
  • Trautmann, N.: Entwurf eines Relaxationsansatzes zur Belegungsplanung einer chargenweise fertigenden Mehrproduktanlage. Workshop Methoden der Prozess- und Betriebsleittechnik, BASF AG, Ludwigshafen, July 18
  • Trautmann, N.: Batch scheduling in process industries — solution approaches. 17th International Conference on CAD, CAM, Robotics and Factories of the Future, Durban, July 10–12
  • Trautmann, N.: Anlagenbelegungsplanung in der Prozessindustrie — eine Alternative zum Simulationsansatz. Sitzung der Arbeitsgruppe Produktionsplanung und -steuerung der GOR, TU Hamburg-Harburg, June 22
  • Trautmann, N.: A batch scheduling problem arising from chemical production planning. XIV Conference of the European Chapter on Combinatorial Optimisation, Bonn, May 31–June 2
  • Trautmann, N.: Planung von kontinuierlichen und diskontinuierlichen Prozessen in der chemischen Industrie — Problemstellung. Sitzung der Arbeitsgruppe Projektmanagement der GOR, BASF AG, Ludwigshafen, May 17
  • Trautmann, N.: Belegungsplanung chargenweise produzierender Mehrzweckanlagen der Prozessindustrie. 10. DFG–Workshop über Projektplanung bei beschränkten Ressourcen, Berlin, April 1–4

2000

  • Trautmann, N.: Web-based teachware for production and operations management. Finalrunde European Academic Software Award 2000, Rotterdam, November 26
  • Trautmann, N.: Ein Dekompositionsansatz zur Anlagenbelegungsplanung: Batching. Mathematisches Forum, BASF AG, Ludwigshafen, November 9
  • Trautmann, N.: Bestandsmanagement im Detailed Scheduling – Problemstellung. Sitzung der Arbeitsgruppe Lagerhaltung der GOR bei der KPMG Unternehmensberatung, Leipzig, October 24
  • Trautmann, N.: Ein Relaxationsverfahren für das Detailed Scheduling. SAP AG, Walldorf, September 12
  • Trautmann, N.: Calendars in project scheduling. Symposium on Operations Research, Technische Universität Dresden, September 10–12
  • Trautmann, N.: Internet-basierte Lehrsoftware für Verfahren zum Produktions- und Operations-Management. 15. Südwest-Workshop über Operations Research in Produktion und Logistik, Universität Karlsruhe, July 7
  • Trautmann, N.: Batch scheduling in process industries — an application of project scheduling. 7th International Workshop on Project Management and Scheduling, Osnabrück, April 17–19
  • Trautmann, N.: Projektplanungsmodelle und -methoden zur Produktionsplanung in der Prozessindustrie. Sitzung der Arbeitsgruppe Projektmanagement und Projektplanung der GOR, Aventis SA, Frankfurt, April 7
  • Trautmann, N.: Operations management in process industries. Sitzung der Arbeitsgruppe Produktionsplanung und -steuerung der GOR, SAP AG, Walldorf, January 21

1999

  • Trautmann, N.: Reaktives Scheduling: Grundlagen und Methoden. SAP AG, Walldorf, Dezember 13
  • Trautmann, N.: Lösung eines Batch-Scheduling-Problems der chemischen Industrie. Bayer AG, Leverkusen, November 12
  • Trautmann, N.: Process Flow Scheduling als ressourcenbeschränktes Projektplanungsproblem. Symposium Operations Research 1999, Magdeburg, September 1–3
  • Trautmann, N.: Optimierungsprobleme der Ablaufplanung in der Prozessindustrie. Höchst AG, Frankfurt, April 19
  • Trautmann, N.: Adaptive Planung in der Prozessindustrie. SAP AG, Walldorf, April 14
  • Trautmann, N.: Anlagenbelegungsplanung in der Prozessindustrie mit Modellen und Methoden der ressourcenbeschränkten Projektplanung. 6. DFG-Workshop über Projektplanung bei beschränkten Ressourcen, Pfalzakademie Lambrecht, März 1–3
  • Trautmann, N.: Process Flow Scheduling als Anwendung der ressourcenbeschränkten Projektplanung. 13. Südwest-Workshop über Operations Research in Produktion und Logistik, Universität Karlsruhe, Januar 22