Presentations2018 (top)Gansterer, M. (2018), Combinatorial auctions for collaborative multi-level lotsizing problems, 20th International Working Seminar on Production Economics. February 19-23, Innsbruck, Austria. Hartl R.F. (2018), Metaheuristics for Logistics Problems. EURO Winter Institute on Lot Sizing (EWI) 2018, Frankfurt (Oder), Germany. Hartl R.F. (2018), Decisions on Pricing, Capacity Investment, and Introduction Timing of New Product Generations in a Durable - good Monopoly.. 7th International Conference on High Performance Scientific Computing Hartl R.F. (2018), Collaborative Vehicle Routing: Challenges and Limitations of Auction-based Mechanisms. Route 2018, May 27-30,Copenhagen. Hartl R.F. (2018), Pushing frontiers in auction-based transport collaborations. EULOG 2018,October 4-5,Linz, Austria. 2017 (top)De Macedo Florio A. (2017), New Modeling and Solution Approaches for the Vehicle Routing Problem with Stochastic Demands. Verolog 2017, July 10-12, Amsterdam. (Abstract) De Macedo Florio A. (2017), The Stochastic Delivery Problem: Optimizing the Number of Successful Deliveries of Courier Companies.. OR 2017, Berlin September 06-08.. Gansterer M. (2017), A new bidding process for combinatorial transportation auctions. Verolog 2017, July 10-12, Amsterdam. Gansterer M. (2017), Multi-Round Combinatorial Auctions for Carrier Collaboration, Informs TSL Conference 2017, July 26-29, Chicago USA. Gansterer M. (2017), The benefit of information sharing in horizontal carrier collaborations. OR Berlin 2017, September 06-08, Berlin, Germany. Hartl R.F. (2017), Equity objectives in Vehicle Routing,Kohn Kaen University, April 18, Thailand. Hartl R.F. (2017), Collaborative Vehicle Routing, Kohn Kaen University, April 19, Thailand. Hartl R.F. (2017), Collaborative Vehicle Routing. LSSC 2017, Sozopol,Bulgarien June 05-09. Hartl R.F. (2017), Collaborative Vehicle Routing. Rover Workshop, Warsaw, Polen June 12-13. Matl P. (2017), Revisiting the Balanced VRP: A Comparative Study of Alternative Workload Metrics.Verolog 2017, July 10-12, Amsterdam. Matl P. (2017), Can single-objective metaheuristics efficiently solve multi-objective problems? MIC 2017, July 04-07, Barcelona. Seidl A. (2017), Decisions on Pricing, Capacity Investment, and Introduction Timing of New Product Generations in a Durable-Good Monopol.. OR 2017 Berlin, September 06-08.. Seidl A. (2017), Decisions on Pricing, Capacity Investment, and Introduction Timing of New Product Generations in a Durable-Good Monopoly. IFORS 2017, Quebec, Canada July 17-21.. Soriano A. (2017), The two-region multi depot pickup and delivery Problem. Verolog 2017, July 10-12, Amsterdam. Soriano A. (2017), The two clustered multi depot pick up and delivery problem with time Windows. MIC 2017,July 4-7, Barcelona. 2016 (top)Breunig Ulrich (2016), A simple LNS-based heuristic for Two-Echelon Routing Problems, Verolog 2016, June 05-09, Nantes. Breunig Ulrich (2016), A simple LNS-based heuristic for Two-Echelon Routing Problems, EURO 2016, July 02-07, Poznan. De Macedo Florio A. (2016), Routing under uncertainty: a new approach to the stochastic VRP with dependent demands, OR 2016, 30.08-02.09.2016 Hamburg. De Macedo Florio Alexandre (2016), The stochastic delivery problem: introduction and solution by branch-and-price, Verolog 2016, June 05-09, Nantes. Gansterer, M. (2016), Bundle generation in combinatorial transportation auctions, OR 2016, Hamburg, Germany. Gansterer, M. (2016), Comparing Solution Methods for the Simple Assembly Line Balancing Problem with a Limited Numbers of Machine Types. International Working Seminar on Production Economics, Innsbruck, February 22-26. Hartl R.F. (2016), Possible Market Entry of a firm with an Additive Manufacturing Technology. Internationl Working Seminar on Production Economics, Innsbruck, 22-26 February. Hartl R.F. (2016), Vehicle Routing with Fairness Objectives, CLAIO 2016 October 2-6, Santigo de Chile. Hartl R.F. (2016), Equity Objectives in Logistics: A Survey and Analysis,. Tilburg University May 16-21. Hartl R.F. (2016), Planned Obsolescence in a Vintage Model of the Firm. International Workshop on Heterogenous Dynamic Models of Economic and Population Systems, Vienna December 1-2. Hartl R.F.(2016) (2016), Equity Objectives in Vehicle Routing: A Survey and Analysis. Tenth International Colloquium on Graphs and Optimization. Rigi Kaltbad, Schweiz July 10-14.. Hartl R.F.(2016) (2016), The Role of Logistics and Transportation in Developed/Modern Industries. International Conference on Applied Mechanics and Industrial Systems (ICAMIS-Oman-2016)December 6-8,Oman. Matl Peter (2016), Equity Objectives in Vehicle Routing: A Survey and Analysis, Verolog 2016, June 05-09, Nantes. Matl Peter (2016), Equity Objectives in Vehicle Routing: A Survey and Analysis, Tristan 2016, June 13-17, Aruba. Seidl, A. (2016), Serious Strategy for the Video Games Industry: Pay-to-Play vs. Free-to-Play, OR 2016, Seidl, A. (2016), On the Monotonicity of the State Trajectories in Autonomous Control Models. EULOG 2016, Soriano Adria (2016), Solving the centralized problem for a two-cluster transport collaboration Network. OR 2016 Hamburg 30.08-02.09.2016. 2015 (top)Hartl R.F, (2015), Comparative Advantages of Additive Manufacturing. CentER, Tilburg, Invited Presentation at the OR-Research Seminar, February 5. (more information) Hartl R.F, (2015), The Electric Fleet Size and Mix Vehicle Routing Problem with Time Windows and Recharging Stations.. Informs 2015, November 1-4,Philadelphia. (Abstract) Hartl R.F, (2015), A Multi-Newsvendor Distribution System with Resupply and Vehicle Routing,ESSEC Business School 19.11.2015. Hartl R.F, (2015), Was macht gute Lehre aus: Wie kann man Massenlehrveranstaltungen interessant gestalten? Hartl R.F,(2015) (2015), A multi-newsvendor distribution system with resupply and vehicle Routing. NOW 2015,May 18-20, La Rochelle ( France). Hartl R.F. (2015), The Electric Fleet Size and Mix Vehicle Routing Problem with Time Windows and Recharging Stations. Informs 2015, November 1-4, Philadelphia. 2014 (top)Breunig Ulrich (2014), A simple but effective LNS for the 2EVRP: extensions for electric vehicles. VeRoLog, June 21-26, Oslo Norway. Breunig Ulrich (2014), A Large Neighbourhood Search for the 2-Echelon Capacitated Vehicle Routing Problem. Euro PhD School on MCDM, 27.2.2014, Madrid. Gansterer M. (2014), Improving an auction based exchange mechanism for the collaborative carrier routing problem. OR 2014, Aachen. Gansterer, M. (2014), Impact of Aggregate Planning on the Performance of Make-to-Order Production Systems. International Workshop on Production Economics 2014, Innsbruck. Gansterer, M. (2014), Request evaluation strategies for carriers in auction-based collaborations. EULOG Conference 2014, Vienna. Hartl, R.F. (2014), Lateral Transhipments and Routing. Ninth International Colloquium on Graphs and Optimization, Sirmione, Italy Hartl, R.F. (2014), Konsistenz in der mehrperiodigen Tourenplanung. GVB – conference „LOGISTIK 4.0 – Flexibilität gestalten“, 6. May 2014, TU Munich. (more information) Hartl, R.F. (2014), Lateral Transhipments and Routing in SCM: Single Route Lateral Transhipment Problem. CentER, Tilburg, Invited Presentation at the OR-Research Seminar, February 13. (more information) Parragh, Sophie N., Cordeau, Jean-François (2014), Column generation for the truck and trailer routing problem with time windows. EULOG 2014, November 17-18, Vienna, Austria. Parragh, Sophie N., Doerner, Karl F., Hartl, Richard F. (2014), Field Staff Routing and Scheduling. VeRoLog 2014, June 22-26, Oslo, Norway. Parragh, Sophie N., Tricoire, Fabien (2014), Solving the bi-objective team orienteering problem by branch-and-price. Invited talk, ANOG Workshop, January 15, Vienna, Austria. Schnell A., Hartl R.F. (2014), On the efficient modeling of the MRCPSP with GPRs in the optimization framework SCIP. International Conference on Operations Research September 2-5, Aachen. (Abstract) Schnell A., Hartl R.F. (2014), On the extension of recent CP-SAT approaches from single-mode to multi-mode jobs in RCPS. 2nd International Optimisation Summer School, Kioloa, Australia. Schnell A., Hartl R.F. (2014), A new CP-SAT approach for the multi-mode resource-constrained project scheduling problem (MRCPSP). 14th International Conference on Project Management and Scheduling, Munich, Germany. 2013 (top)Breunig Ulrich (2013), A Large Neighbourhood Search for the 2-Echelon Capacitated Vehicle Routing Problem. Euro Informs, Rom, 01-04 July. Gansterer, M. (2013), Simulation-based Optimization Methods for Setting Production Planning Parameters. OR 2013, Rotterdam. Hartl R.F. (2013), Lateral Transshipment with Vehicle Routing. The Forth International Conference on Optimization Simulation and Control, July 01-04.2013, Ulaanbaatar, Mongolei. Hartl, R.F: (2013), The Influence ot Routing on Lateral Transshipment. Fourteenth International Conference on Computer Aided Systems Theory ( EUROCAST 2013) February 10-15, 2013, Las Palmas de Gran Canaria Canary Islands, Spain. (more information) Ivanov, D., Sokolov, B., Hartl, R.F., Pavlov, A. (2013), Structure Dynamics Control-Based Integration of Aggregate Distribution and Dynamic Transportation Planning. IFAC Conference on Manufacturing Modelling, Management, and Control, June 19-21, 2013, Saint Petersburg, Russia. Parragh, S.N., Tricoire, F. (2013), The biobjective team orienteering problem with time windows. EURO/INFORMS 2013, July 1-4, Rome, Italy. Schnell A., Hartl R.F. (2013), A combined CP-SAT-MIP approach for the multi-mode resource-constrained project scheduling problem. International Conference on Operations Research (GOR), Schnell A., Hartl R.F. (2013), A new exact approach for the multi-mode resource-constrained project scheduling problem (MRCPSP). Young Academic's Management Science, Schnell, A. (2013), A hybrid local search algorithm integrating an exact CP-SAT approach to solve the multi-mode resource-constrained multi-project scheduling problem. Multidisciplinary International Scheduling Conference: Theory and Applications (MISTA), Tricoire, F., Parragh, S.N. (2013), Bound sets for the biobjective orienteering problem with time windows. VeRoLog 2013, July 7-10, Southampton, England. 2012 (top)Archetti, C., Doerner, K.F., Tricoire, F. (2012), Free newspaper delivery optimisation. Odysseus 2012, May 21-25, Mykonos Greece. Hartl, R.F. (2012), Adaptive large neighborhood search for the consistent vehicle routing problem. Invited presentation at the OR-Research Seminar, CentER, Tilburg, 13.4.2012. (more information) Hartl, R.F. (2012), Adaptive large neighborhood search for rich vehicle routing problems (Keynote, Opening Plenary). The 8th International Conference on Intelligent Manufacturing & Logistics Systems (IML 2012), February 18-22, 2012 I Ubonratchathani, Thailand. (more information) Hartl, R.F. (2012), Consistency in vehicle routing (Keynote, Closing Plenary). 3rd International Conference on Computational Logistics ICCL'12, September 24-26, 2012, Shanghai, China. (more information) Hartl, R.F. (2012), VNS approaches for rich vehicle routing (Keynote Plenary Lecture). EURO Mini Conference XXVIII on Variable Neighbourhood Search, Herceg Novi (Montenegro) October 4-7, 2012. (Abstract) (more information) Hartl, R.F. (2012), Metaheuristics (Invited Keynote Tutorial). ORP3 - Operation Research Peripatetic Postgraduate Programme, Linz, Austria, July, 16-20, 2012. (Abstract) Parragh, Sophie N., Almada-Lobo, Bernardo (2012), Solving the dial-a-ride problem with split requests and profits. International Symposium on Combinatorial Optimization 2012, September 17-19, Oxford, UK. Parragh, Sophie N., Doerner, Karl F. (2012), Hybridization strategies for routing problems with pairwise synchronization constraints. VeRoLog 2012, June 18-20, Bologna, Italy. Parragh, Sophie N., Doerner, Karl F. (2012), Wenn zwei Servicetechniker sich treffen sollten: Tourenplanung mit Synchronisierungsnebenbedingungen. EULOG 2012, May 10-11, Salzburg, Austria. Schmid, Verena (2012), Prevention and emergency care. IX Congreso Latinoamericano de IIE - Ciudades en Crecimiento, March 15-17 2012, Bogotá, Colombia. (more information) Schmid, Verena and Andrés L. Medaglia (2012), Hybrid Large Neighborhood Search for the Bus Rapid Transit Route Design Problem. INFORMS 2012, Annual Meeting of Operations Research and the Management Sciences, October 14-17, Phoenix, AZ, USA. (Abstract) (more information) Schmid, Verena and Doerner, Karl F. (2012), Examination and Operating Room Scheduling featuring Optimization of Intra-hospital Routing. Matheuristics 2012, 4th International Workshop on Model-Based Metaheuristics, September 17-20, Angra dos Reis, Brasil. (Abstract) (more information) Schmid, Verena and Parragh, Sophie N. (2012), Hybrid Variable Neighborhood Search for the Dial-a-Ride Problem. Odysseus 2012, 5th International Workshop on Freight Transportation and Logistics, May 21-25, Mykonos, Greece. (Abstract) (more information) Schnell, A. (2012), The impact of the predefined search space on recent exact algorithms for the RCPSP. 21st International Symposium on Mathematical Programming Schnell, A., Hartl, R.F. (2012), A preprocessing procedure to improve recent exact algorithms for the resource-constrained project Summerauer, W. Almeder, Ch., Hartl, R.F. (2012), Solving the resource-constrained project scheduling problem using large neighborhood search. 25th European Conference on Operational Research 08.07-11.07.2012, Vilnius, Litauen. (Abstract) (more information) Turan, B., Dörner, K., Hartl, R.F., Schmid, V. (2012), Large Neighborhood Search for solving the Newspaper Delivery Problem. 25th European Conference on Operational Research July 8-11, 2012. (Abstract) (more information) Turan, B., Hartl, R.F., Schmid, V., Dörner, K.F. (2012), Large Neighborhood Search for Multi Depot Multi Period Vehicle Routing Problem with Time 2011 (top)Günther, M. and Schmid, V. (2011), Metaheuristic Approach for Task Assignment with Dynamic Durations. IFORS 2011 (19th Triennial Conference of the International Federation of Operational Research Societies), Melbourne, Australia, July 10-15. (Abstract) (more information) Hartl, R.F. (2011), Der Nutzen von Optimierungsverfahren in der Tourenplanung. Hartl, R.F. (2011), Adaptive large neighborhood search for the consistent vehicle routing problem. Invites Presentation at the "Wirtschaftswissenschaftliches Kolloquium", 30.11.2011, Otto-von-Guericke-Universität Magdeburg. (Abstract) Hartl, R.F. (2011), Adaptive large neighborhood search for service technician routing and scheduling problems. Invited Presentation at the OR-Research Seminar, CentER, Tilburg, March 3, 2011. (more information) Hartl, R.F. (2011), Adaptive large neighborhood search for service technician routing and scheduling problems. IFORS 2011 (19th Triennial Conference of the International Federation of Operational Research Societies), Melbourne, Australia, July 10-15. (Abstract) (more information) Hartl, R.F. (2011), Variable neighborhood search for the dial-a-ride problem. Invited presentation at PhD-Seminar, Univ. Graz. Kovacs, A., Hartl, R.F., Parragh, S (2011), A template based adaptive large neighborhood search for the consistent vehicle routing problem. ROUTE 2011,Barcelona 31.05-03.06.2011. (more information) Kovacs, A., Hartl, R.F., Parragh, S. (2011), A template based adaptive large neighborhood search for the consistent vehicle routing problem. 9th Metaheuristics International Conference. (Abstract) (more information) Kritzinger S., Tricoire F., Doerner K. F., Hartl R. F. (2011), Variable Neighborhood Search for the Time-Dependent Vehicle Routing Problem with Soft Time Window. Learning and Intelligent OptimizatioN 5, Rome, Italy. (Abstract) (more information) Kritzinger S., Tricoire F., Doerner K. F., Hartl R. F. (2011), A Unified Framework for Routing Problems with Fixed Fleet Size. EU/MEeting 2011, Vienna, Austria. (Abstract) (more information) Kritzinger S., Tricoire F., Doerner K. F., Hartl R. F. (2011), A unif ed variable neighborhood search for vehicle routing problems with fi xed fleet size. MIC 2011, Udine, Italy. (Abstract) (more information) Kritzinger S., Tricoire F., Doerner K. F., Hartl R. F. (2011), Solving Vehicle Routing Problems with a Unfi ed Variable Neighborhood Search Framework. OR 2011, Zurich, Switzerland. (Abstract) (more information) Kritzinger, S., Tricoire, F., Doerner, K.F., Hartl, R.F. (2011), Variable neighborhood search for the time-dependent vehicle routing problem with soft time windows. IFORS 2011, July 11-15, Melbourne, Australia. Parragh, S.N, Schmid, V. (2011), Hybrid large neighborhood search for the dial-a-ride problem. VII ALIO/EURO – Workshop on Applied Combinatorial Optimization, Porto, Portugal, May 2011. Parragh, S.N. (2011), Demand Responsive Transportation: a client-oriented perspective. Invited talk at EU/MEeting, Vienna, Austria, Februay 2011. Parragh, S.N., Almada-Lobo, B., Pinho de Sousa, J. (2011), The dial-a-ride problem with split requests and profits. OR 2011, Zurich, Switzerland, Aug 30 - Sep 2, 2011. Parragh, S.N., Doerner, K.F. (2011), Hybridization strategies for routing problems with synchronization constraints. MIC 2011, Udine, Italy, July 2011. Schmid V. (2011), Orienteering Problems with Time Windows given Dynamic Service Times and Profits. IFORS 2011 (19th Triennial Conference of the International Federation of Operational Research Societies), Melbourne, Australia, July 10-15. (Abstract) (more information) Schmid, V. and Doerner, K.F. (2011), Emergency Room Scheduling featuring Optimization of Intra-hospital Routing. EU/ME 2011 (Workshop on Client-centered Logistics and International Aid), Vienna, Austria, February 21-22, 2011. (more information) Schmid, V. and Doerner, K.F. (2011), Emergency Room Scheduling featuring Optimization of Intra-hospital Routing. Forschungskolloquium Universität Magdeburg, Magdeburg, Germany, January 12, 2011. Schmid, V. and Hartl, R.F. (2011), Large Neighborhood Search for Solving the Bi-Objective Capacitated m-Ring-Star Problem. MIC 2011 (9th edition of the Metaheuristics International Conference), Udine, Italy, July 25-28. (Abstract) (more information) Schmid, V. and Hartl, R.F. (2011), Large Neighborhood Search for Solving the Bi-Objective Capacitated m-Ring-Star Problem. OR 2011 (International Conference on Operations Research), Zurich, Switzerland, August 30 - September 2. (more information) Schnell, A. (2011), A generalized forward-backward improvement heuristic for the resource-constrained project scheduling problem. 2nd Workshop on Young Academics' Management Science - YAMS, December 02-03 2011, Graz. Turan, B., Schmid, V., Dörner, K.F. (2011), Models for Intra- Hospital Patient Routing. 3rd IEEE International Symposium on Logistics and Industrial Informatics Turan, B., Schmid, V., Hartl, R.F. (2011), Models for newspaper delivery. 2nd Workshop on Young Academics' Management Science - YAMS 2010 (top)Almeder, C., Mönch, L. (2010), Reihenfolgeplanung auf nicht-identischen Batchmaschinen mit Freigabezeiten und inkompatiblen Auftragsfamilien. Logistiktagung Salzburg. Archetti, C., Doerner, K.F. and Tricoire, F. (2010), Hybrid solution methods for the free newspaper delivery problem. Matheuristics 2010 June 28-30, Vienna. Archetti, C., Doerner, K.F., Tricoire, F. (2010), The free newspaper delivery problem. Tristan VII, June 20-25 2010, Tromsø, Norway. Doerner, K.F., Gussmagg-Pfliegl, E., Hartl, R.F. and Tricoire, F. (2010), A Hybrid Approach for Real World Postman Problems. ALIO-INFORMS 2010, Buenos Aires. Gutjahr, W. and Tricoire, F. (2010), The bi-objective stochastic covering tour problem. ALIO-INFORMS 2010, Buenos Aires. Gutjahr, W. and Tricoire, F. (2010), Solving a stochastic bi-objective covering tour problem. EURO XXIV, 11-14 July 2010, Lisbon. Gutjahr, W.J., Tricoire, F. (2010), The bi-objective stochastic covering tour problem. ALIO-INFORMS 2010, Buenos Aires, Argentina. Günther, M. and Schmid, V. (2010), R&D Task Assignment in a Multinational Environment Considering Dynamic Durations and Skill Levels. ALIO-INFORMS 2010 (Joint International Meeting of the Association of Latin-Iberoamerican Operational Research Societies and the Institute for Operations Research and the Management Sciences), Buenos Aires, Argentina, June, 2010. (Abstract) (more information) Kritzinger S., Doerner K.F., Hartl R.F., Tricoire F. (2010), Variable Neighborhood Search for the Time-Dependent Vehicle Routing Problem with Time Windows. EURO XXIV, Lisbon, Portugal. (Abstract) (more information) Kritzinger S., Doerner K.F., Hartl R.F., Tricoire F. (2010), Variable Neighborhood Search for the Time-Dependent Vehicle Routing Problem with Time Windows. Optimization Days 2010, Montreal, Kanada. (Abstract) (more information) Parragh, S.N. (2010), Solving a real-world service technician routing and scheduling problem. TRISTAN 2010, Tromso, Norway, June 2010. Parragh, S.N. (2010), A hybrid algorithm for a service technician routing and scheduling problem. EURO 2010, Lisbon, Portugal, July 2010. Schilde, M., Doerner, K.F., Hartl, R.F. (2010), Metaheuristiken für das dynamisch stochastische Dial-a-Ride Problem mit erwarteten Rücktransporten. Fachtagung: Entscheidungsunterstützung in der Logistik - Geographische Informationssysteme und Optimierung, Salzburg, Austria. (more information) Schilde, M., Doerner, K.F., Hartl, R.F. (2010), Solution methods for the dynamic dial-a-ride problem with stochastic requests and expected return trips. TRISTAN VII, Tromsø, Norway. (more information) Schilde, M., Doerner, K.F., Hartl, R.F. (2010), Metaheuristics for the dynamic stochastic dial-a-ride problem with expected return transports. EURO XXIV, Lisbon, Portugal. (more information) Schilde, M., Doerner, K.F., Hartl, R.F. (2010), Solution Methods for the Dynamic Dial-a-Ride Problem with Stochastic Time-Dependent Travel Times. International Conference Operations Research 2010, Munich, Germany. (more information) Schmid Verena (2010), Solving the Dynamic Ambulance Dispatching & Relocation Problem using Approximate Dynamic Programming. Euro 2010 - 24th International Conference on Operational Research, Lisbon, Portugal, July 11-14 2010. (more information) Schmid, V. (2010), Solving the Dynamic Ambulance Relocation Problem using Approximate Dynamic Programming. ALIO-INFORMS 2010 (Joint International Meeting of the Association of Latin-Iberoamerican Operational Research Societies and the Institute for Operations Research and the Management Sciences), Buenos Aires, Argentina, June, 2010. (Abstract) (more information) Schmid, V. (2010), Solving the Dynamic Ambulance Dispatching & Relocation Problem using Approximate Dynamic Programming. Matheuristics 2010, Vienna, Austria, June 2010. (more information) Schmid, V. (2010), Wie kommt die Cola-Dose ins Regal? Und was hat das mit Logistik zu tun?. UNIorientiert, Wien, September 2010. (Abstract) (more information) Schmid, V. (2010), Solving the Dynamic Ambulance Dispatching & Relocation Problem using Approximate Dynamic Programming. OR 2010 (International Conference on Operations Research), Munich, Germany, September 1-3, 2010. (more information) Schmid, V. (2010), Solving the Dynamic Ambulance Dispatching & Relocation Problem using Approximate Dynamic Programming. OR 2010 (International Conference on Operations Research), Munich, Germany, September 1-3, 2010. (more information) Schmid, V. and Doerner, K.F. (2010), Batch & Route. An Integrated Modeling Approach. Wiener Forschungsseminar "eLogistics und Operations Research", Vienna, Austria, October 8, 2010. Summerauer, W., Almeder, Ch., (2010), Improving a Make-to-Order Production Process using Resource-Constrained Project Scheduling. EURO XXIV, Lissabon, 11.07-14.07.2010. (more information) 2009 (top)Almeder, C. (2009), Multi-level lot sizing problems: Hybrid solution methods and lead time considerations. Habilitation, University of Vienna. Almeder, C. and Almada-Lobo, B. (2009), Big-bucket lot-sizing problems with synchronization. EURO XXIII, Bonn. Almeder, C., Preusser, M., Hartl, R.F. (2009), Simulation and optimization of supply chains: alternative or complementary approaches?. Oberseminar an der Fernuniversität Hagen (Fakultät für Mathematik und Informatik). Almeder,Ch., Katzensteiner,St., Hartl,R.F. (2009), A VNS-based solution approach for a flexible flow shop Ferreira, D. and Almada-Lobo, B. and Almeder, C. (2009), An application of lotsizing and scheduling problem to the soft-drink industry. EURO XXIII, Bonn. Hartl, R. and Schmid, V. and Doerner, K. (2009), Full Truckload Delivery of Ready Mixed Concrete: Hybrid Approaches and Real World Aspects. 6th Workshop on Logistics and Supply Chain Management, October 5 to 7, Berkeley, USA:. Hartl, R.F. (2009), Optimal Pricing in a Recession that Freezes Capital Markets: The Case of Hartl, R.F. (2009), Metaheuristics for Orienteering Problems. INFORMS Annual Meeting, San Diego, USA, October 11-14, 2009. Hartl, R.F., Kort,P. (2009), Optimal Pricing for a Firm in Recession Periods Producing a Conspicuous Hemmelmayr, V.C., Doerner, K.F., Hartl, R.F. (2009), Metaheuristic solution methods for waste collection problems. EURO Conference 2009, July 5 - 8, Bonn, Germany. Parragh, S.N., Cordeau J.-F., Doerner K.F., Hartl, R.F. (2009), Algorithms for the heterogeneous dial-a-ride problem with driver related constraints. Odysseus 2009, Cesme, Turkey, May 2009. Parragh, S.N., Cordeau J.-F., Doerner K.F., Hartl, R.F. (2009), Solving dial-a-ride problems with variable neighborhood search. MIC 2009, Hamburg, Germany, July 2009. Schilde, M., Doerner, K.F., Hartl, R.F. (2009), Metaheuristics for the Bi-Objective Orienteering Problem. EU/MEeting 2009, Porto, Portugal, April 2009.. (more information) Schilde, M., Doerner, K.F., Hartl, R.F. (2009), Solution methods for the dynamic dial-a-ride problem with stochastic requests and expected return trips. MIC 2009 (8th Metaheuristic International Conference), Hamburg, Germany, July 2009. (more information) Schilde, M., Doerner, K.F., Hartl, R.F. (2009), Solution methods for the dynamic dial-a-ride problem with stochastic requests and expected return trips. Ecole de Mines de Nantes, Nantes, France, October 2009. Schmid V. (2009), Trucks in Movement: Hybridization of Exact Approaches and Variable Neighborhood Search for the Delivery of Ready-Mixed Concrete. CIRRELT, Montreal (Canada); Joint Seminar of The Canada Research Chair in Distribution Management and The Canada Research Chair in Logistics and Transportation, Februar 2009. (more information) Schmid, V., Doerner, K.F. (2009), Coverage models with time dependent traveling times. Odysseus 2009 (Fourth International Workshop on Freight Transportation and Logistics) Cesme, Turkey, May 2009. (more information) Schmid, V., Doerner, K.F. (2009), Coverage models with time dependent traveling times. Optimizing Coverage by relocating vehicles. CORS-INFORMS International 2009 (Joint International Meeting of the Canadian Operational Research Society and the Institute for Operations Research and Management Science) Toronto, Canada, June 2009. (more information) Schmid, V., Doerner, K.F. (2009), Coverage models for emergency vehicles. EURO 2009, Bonn, Germany, July, 2009. (more information) Schmid, V., Doerner, K.F. (2009), Coverage models for emergency vehicles. MIC 2009 (8th Metaheuristic International Conference), Hamburg, Germany, July 2009. (more information) Schmid, Verena (2009), Trucks in Movement: Hybridization of Exact Approaches and Variable Neighborhood Search for the Delivery of Ready-Mixed Concrete. ITSC09 (12th International IEEE Conference on Intelligent Transportation Systems), St Louis (MO), USA, October 3-7. (more information) Schmid,V., Dörner,K., Hartl, R.F. (2009), Production and Delivery of Ready-Mixed Concrete. Transport Optimization Challenges in Contemporary Practice, May 12th - May 14th 2009, Jyväskylä, Finland. Tricoire, F., Romauch, M., Doerner, K.F., Hartl, R.F. (2009), Algorithms for the Multi-Period Orienteering Problem with Multiple Time Windows. Odysseus 2009, 26-29 May. Tricoire, F., Romauch, M., Doerner, K.F., Hartl, R.F. (2009), Variable neighborhood search for orienteering problems. MIC 2009, Hamburg, July 13-16. Tricoire, F., Romauch, M., Doerner, K.F., Hartl, R.F. (2009), Heuristics for the multi-period orienteering problem with multiple time windows. EURO Conference 2009, July 5 - 8, Bonn, Germany. Vera C. Hemmelmayr, Karl F. Doerner, Richard F. Hartl (2009), Metaheuristics for a real world waste collection problem. Odysseus 2009, 26-29 May. 2008 (top)Almeder, C. (2008), Kombination von ACO und exakten Methoden zur Lösung von mehrstufigen Losgrößenproblemen. Oberseminar an der Fernuniversität Hagen (Fakultät für Mathematik und Informatik). Almeder, C. (2008), Lot-sizing with a scarce setup resource on parallel machines. OR 2008, Augsburg. Almeder, C., Hartl, R.F., Preusser, M. (2008), Modellierung und Analyse einer Supply Chain am Beispiel der Papierindustrie. Magdeburger Logistiktagung. Hartl, R.F. (2008), OR Methods in Transportation. 30th Anniversary Meeting of the Austrian Society of Operations Research (Vienna, Nov. 7). (more information) Hartl, R.F. (2008), VNS approaches for rich und real world vehicle routing problems (invited semiplenary talk). OR 2008 (Augsburg, September 3-5). (Abstract) (more information) Hartl, R.F. (2008), Metaheuristic solution approaches for the combination of container loading and vehicle routing. IT-based Planning and Control of Seaport Container Terminals and Transportation Systems (Bremen, August 27-31). (Abstract) (more information) Hartl, R.F. (2008), The Combination of Packing and Vehicle Routing: Metaheuristic Solution Approaches. CentER Research seminar (invited talk, Tilburg, Nov. 20). (Abstract) Hemmelmayr, V.C., Doerner, K.D., Hartl, R.F. and Savelsbergh, M.W.P. (2008), Inventory Routing for Environments with Stochastic Product Usage. IFORS 2008 - International Federation of Operational Research Societies Conference, Sandton, South Africa, Juli 2008. Parragh, S.N., Doerner, K., Hartl, R.F. (2008), Variable neighborhood search for dial-a-ride problems. Optimization Days 2008, Quebec, May 12-14, 2008. Schmid, V. (2008), Wie kommt die Cola-Dose ins Regal? Und was hat das mit Logistik zu tun?. UNIorientiert, Wien, September 2008. (Abstract) (more information) Schmid, V. (2008), Trucks in Movement: Hybridization of Exact Approaches and Variable Neighborhood Search for the delivery of ready-mixed concrete. Jahreshauptversammlung der österreichischen Gesellschaft für Operations Research (OeGOR), Wien, November 2008. (Abstract) (more information) Schmid, V., Doerner, K.D., Hartl, R.F., Salazar-González, J.J. (2008), Hybridization of Local Branching guided by Variable Neighborhood Search for Ready-Mixed Concrete Delivery Problems. Entscheidungsunterstützung in der Logistik - Geographische Informationssysteme, Simulation und Optimierung, Salzburg, April 2008. (more information) Schmid, V., Doerner, K.F., Hartl, R.F., Salazar-González, J.J (2008), A hybrid solution approach for ready-mixed concrete delivery. IFORS 2008 - International Federation of Operational Research Societies Conference, Sandton, South Africa, Juli 2008. (more information) Schmid, V., Doerner, K.F., Hartl, R.F., Salazar-González, J.J. (2008), Hybridization of Local Branching guided by Variable Neighborhood Search for Ready-Mixed Concrete Delivery Problems. Matheuristics 2008 - second international workshop on model based metaheuristics, Bertinoro, Italien, Juni 2008. (more information) Tricoire, F., Doerner, K., Hartl, R., Iori, M. (2008), Recherche à voisinage variable pour le problème de tournées de véhicules multi-piles. ROADEF'08, Clermont-Ferrand, France, 24-27 Feb. 2008 (presented by F. Tricoire). Tricoire, F., Doerner, K., Hartl, R.F., Iori, M. (2008), Variable Neighbourhood Search for the Multi-Pile Vehicle Routing Problem. Optimization Days 2008, Quebec, May 12-14. Tricoire, F., Doerner, K.F., Hartl, R.F., Iori, M. (2008), Heuristic, Exact and Hybrid Methods for the Multi-Pile Vehicle Routing Problem. Matheuristics workshop 2008, Bertinoro, Italy, June 16 - 18. (Abstract) Tricoire, F., Romauch, M., Doerner, K.F., Hartl, R.F. (2008), Algorithms for the Multi-Period Orienteering Problem with 2007 (top)Almeder, C. (2007), Combining ant colony optimization and exact methods for multi-level (capacitated) lot-sizing problems. Rutgers University. Almeder, C., Preusser, M. (2007), Linearizing simulation models - A toolbox for an LP/MIP-based improvement strategy for supply chains. EURO XXII, Prague. Almeder, C., Preusser, M. (2007), A hybrid solution approach for supply chains. 6th EUROSIM Congress on Modelling and Simulation, 9-13 Sept. 2007, Ljubljana, Slovenia. Almeder, C., Preusser, M. (2007), A toolbox for simulation-based optimization of supply chains. Winter Simulation Conference, Washington, USA. Fuellerer G., Doerner K., Hartl R.F., Iori M. (2007), Ant Colony Optimization for the Two-dimensional Loading Vehicle Routing Problem. MIC 2007, Montral,Canada, Juni 2007. Hartl R. F. (2007), Variable Neighborhood Search for Periodic Routing Problems. Route 2007, Jekyll Island. Hartl, R.F. (2007), Two state capital accumulation with heterogeneous products: disruptive vs. non-disruptive goods. CentER Research seminar (invited talk, Tilburg, Sept 27). (Abstract) Hemmelmayr, V.C., Doerner, K.D., Hartl, R.F. and Savelsbergh, M.W.P. (2007), Delivery Strategies for Blood Products Supplies. EURO Winter Institute on Location and Logistics, Estoril - Portugal. Ostertag A., Doerner K., Hartl R.F., Waelti P., Taillard E. (2007), PopMusic for Real World Large Scale Multi Depot Vehicle Routing Problems with Time Windows. MIC 2007, Montreal, Candada, Juni 2007. Parragh S., Doerner K., Gandibleux X., Hartl R.F. (2007), Metaheuristics for the Multi-Objective Dial-a-Ride Problem. MIC 2007, Montreal, Canada, Juni 2007. Parragh, S.N., Doerner, K.F., Gandibleux X., Hartl R.F. (2007), Approaching the Pareto Frontier of the Multi-Objective Dial-a-Ride Problem. Route 2007, Jekyll Island, Georgia, May 2007. (more information) Preusser, M. (2007), Improving a real-world global supply chain network using a combination of LP-Modeling and simulation. EURO XXII, Prague. Schmid V., Doerner K., Hartl R.F., Savelsvergh M., Stoecher W. (2007), Hybridization of exact and metaheuristic approaches: a cooparative local search and network flow heuristic. MIC 2007, Montreal, Canada, June 2007. (more information) Schmid, V., Doerner, K.F., Hartl, R.F., Savelsbergh, M.W.P, Stoecher, W. (2007), Hybridization of exact methods and metaheuristics for solving full truck load problems for ready-mixed concrete. Jahresversammlung der Österreichischen Gesellschaft für Operations Research, Wien, Oktober 2007. (more information) Schmid, V., Doerner, K.F., Hartl, R.F., Savelsbergh, M.W.P., Stoecher, W. (2007), An effective heuristic for ready mixed concrete delivery. Tristan 2007, Tricoire F., Koerner K., Hartl R.F., Iori Manuel (2007), Variable Neighbourhood Search for the Multi-Pile Vehicle Routing Problem. MIC 2007, Montreal,Canada,Juni 2007. 2006 (top)Almeder, C., Hartl, R.F. (2006), An Ant-based Algorithm using an Exact LP-Solver for Mutli-level Capacitated Lot-Sizing Problems. INFORMS 2006, Hong Kong. Doerner, K.F., Hartl, R.F., Hemmelmayr, V., Savelsbergh, M.W.P. (2006), Vendor Managed Inventory for Blood Products. ODYSSEUS 2006: Third International Workshop on Freight Transportation and Logistics. Altea (Spain), May 23-26 Fuellerer, G., Doerner, K.F., Hartl, R.F., Iori M. (2006), Savings based Ants for the Vehicle Routing Problem with Two-Dimensional Loading Constraints. Network Optimization Workshop, Saint-Rémy de Provence, France, August 22-25. (Abstract) (more information) Hartl, R.F., Schmid, V., Doerner, K.F., Savelsbergh, M.W.P., Stoecher, W. (2006), Full truck load problems in the concrete industry. Operations Research 2006, Karlsruhe, Sept 6-8. (Abstract) (more information) Hemmelmayr, V.C., Doerner, K.D., Hartl, R.F. and Savelsbergh, M.W.P. (2006), Delivery Strategies for Periodic Blood Products Supplies. Matheuristics 2006: 1st Workshop on Mathematical Contributions to Metaheuristics, 27-30 August,University of Bologna Residential Center, Bertinoro. K.F. Doerner, R.F. Hartl, M.W.P. Savelsbergh, V. Schmid, W. Stoecher (2006), Hybridization of exact methods and metaheuristics for solving full truck load problems for ready-mixed concrete. IWDL 2006, Pasia, J.M., Hartl, R.F., Doerner, K.F. (2006), Solving a Bi-objective Flowshop Scheduling Pitakaso, R., Almeder, C., Doerner, K.F., Hartl, R.F. (2006), A MAX-MIN Ant System for Unconstrained Multi-Level Lot Sizing Problems. INFORMS 2006, Hong Kong. Polacek, M., Doerner, K.F., Hartl, R.F., Maniezzo, V. (2006), A Variable Neighborhood Search for the Capacitated Arc Routing Problem with Intermediate Facilities. Network Optimization Workshop (NOW), Saint-Rémy de Provence, France, August 22-25. (Abstract) (more information) R.F. Hartl (2006), Metaheuristics for Vehicle Routing Problems with Loading Constraints. CentER for Economic Research in Tilburg, February 9. (Abstract) R.F. Hartl (with K. Doerner, G. Füllerer, M. Iori) (2006), Metaheuristics for VRPs with loading constraints. EURO XXI, Reykjavik, Iceland, July 2-5. (Abstract) Schmid, V., Doerner, K.F., Hartl, R.F., Savelsbergh, M.W.P., Stoecher, W. (2006), Hybridization of exact methods and metaheuristics for solving full truck load problems for ready-mixed concrete. Matheuristics 2006: 1st Workshop on Mathematical Contributions to Metaheuristics, 27-30 August, 2005 (top)Almeder, C., (with R.F. Hartl and M. Preusser), (2005), LP Modellierung und Simulation von Supply Chain Netzwerken. GOR-Tagung: Entscheidungsunterstützende Systeme in Supply Chain Management und Logistik, Paderborn, Deutschland. Feichtinger, G. ,Hartl, R.F., Kort, P.M., Veliov, V. (2005), Financially-constrained capital investment: the effects of embodied and disembodied technological progress. Workshop on "Vintage Modelling in Economics and Economic Demography", European University Institute, Villa Schifanoia, Florence, September 26/27. (Abstract) (more information) Hartl R.F. (with Peter Kort) (2005), Advertising Directed Towards Existing and New Customers. Optimal Control and Dynamic Games: Applications in Finance, Management Science, and Economics, Workshop in honor of Suresh Sethi, Aix en Provence, France, 2-6 Juin 2005. (Abstract) Hartl, R.F. (2005), Brand Integrity and Brand Dilution in the Fashion Industry. CentER for Economic Research in Tilburg, 17.2.2005. (more information) Hartl-Dörner (2005), Solving the Packing and Routing Problem for Wood Products Deliveries. Route 2005 Bertinoro. Preusser, M. (2005), Hybrid Supply Chain Modelling - Combining LP-Models and Discrete-Event Simulation. ORP3 - Operational Research Peripatetic Postgraduate Programme, Valencia, Spain. 2004 (top)Almeder, C. (2004), LP-Modeling of Supply Chain Networks and Interaction with Simulation. OR 2004, International Conference on Operations Research, Tilburg, Netherlands. Hartl, R.F. (2004), Ant Colony Optimization in Multiobjective Project Portfolio Selection with IP-preprocessing. Seminars Operations Research of CentER for Economic Research in Tilburg, 5.2.2004. (more information) Hartl, R.F. (2004), Kontrolltheoretische Modelle und Methoden in den Wirtschaftswissenschaften - neuere Entwicklungen. Tagung der Wissenschaftlichen Kommission "Operations Research" des Verbandes der Hochschullehrer für Betriebswirtschaft in Freiberg, 9.-10.1.2004. (more information) Hartl, R.F. (2004), Applying Ant Colony Optimization to the Capacitated Arc Routing Problem (Poster). ANTS 2004 in Brussels, Belgium, 5.-8.9.2004. (more information) Hartl, R.F. (2004), Scheduling periodic customer visits for a Travelling Salesman. OR 2004 in Tilburg, Netherlands, 1.-3.9.2004. (more information) Hartl, R.F. (2004), Optimierung in Produktion und Logistik mit Ameisen-Algorithmen. SimForumSteyr'04 - Simulation & Optimierung im Rahmen der Digitalen Fabrik in Steyr, 24.6.2004. (more information) Hartl, R.F. (with Karl Doerner) (2004), Solving the packing and routing problem for wood products deliveries. TraLog - Transportation and Logistics in Molde, Norway, 25.-27.8.2004. (more information) Hartl, R.F. (with Karl Doerner) (2004), A Probabilistic Two-Day Delivery Vehicle Routing Problem. TRISTAN V - Fifth Triennial Symposium on Transportation Ananlysis in Guadeloupe, 13.-18.6.2004. (more information) Preusser M. (2004), Column Generation for Bin Packing Problems. 5th EuroSim Congress on Modelling and Simulation, Paris, France. 2003 (top)Hartl, R.F. (2003), Explaining fashion cycles: a Skiba curve analysis. Workshop on Economic Dynamics in Bolzano/Bozen, 9.-10.10.2003. (more information) Hartl, R.F. (2003), Scheduling Blood Collecting Vehicles for the Austrian Red Cross. ODYSSEUS 2003 in Palermo, 27.-30.5.2003. (more information) Hartl, R.F. (2003), Explaining fashion cycles: a Skiba curve analysis. Workshop on Dynamic Optimization in Economics and Operations Research in Tilburg, 12.12.2003. Hartl, R.F. (with Karl Doerner) (2003), An Ant System Metaheuristic for the Capacitated Arc Routing Problem. MIC2003 (Metaheuristics International Conference) in Kyoto, 23.-30.6.2003. (more information) 2002 (top)Almeder, C. (2002), Age-dependent Analysis and Modeling of the Marijuana Use in Australia. Workshop on Dynamic Drug Policy: Understanding and Controlling Drug Epidemics, Vienna (UNDCP - United Nations Drug Control Program). Almeder, C. (2002), Anwendungen mit Maple - ein Erfahrungsbericht. Seminare "Modellbildung und Simulation" (S91), Symbolic Computation: Erfahrungen mit MAPLE, Mathematica, MathCad, Derive, Technische Universität Wien. Hartl, R.F. (2002), History dependence without unstable steady state: a non-differentiable framework. Operations Research 2002 in Klagenfurt, 2.-5.9.2002. (more information) Hartl, R.F. (2002), Opposition of the Dissertation by Drs. Jacco L. Wielhouwer. CentER for Economic Research in Tilburg, 14.6.2002. (more information) Hartl, R.F. (with A. Novak) (2002), Optimal Pricing of a Product Which Diffuses in Rich and Poor Populations. Workshop Optimal Control and Differential Games in Tunis, 27.-28.9.2002. Hartl, R.F. (with Karl Doerner) (2002), Insertion based Ants for Vehicle Routing Problems with Backhauls and Time Windows. ANTS 2002 in Brussels, 12.-14.9.2002. (more information) Hartl, R.F. (with Karl Doerner) (2002), VRP with interdependent Time Windows - A Case study for the Austrian Red Cross blood programme. Operations Research 2002 in Klagenfurt, 2.-5.9.2002. (more information) Hartl, R.F. (with P. Kort) (2002), Capital Accumulation Model with Debt Financing: The Steigum Model Revisited. Workshop Optimal Control and Differential Games in Tunis, 27.-28.9.2002. 2001 (top)Hartl, R.F. (2001), Keeping up with the technology pace: A technology investment decision problem. CentER for Economic Research in Tilburg, 29.11.2001. (more information) Hartl, R.F. (2001), Age Structured Model for Drug Dynamics: the OSSP. EURO Working Group ORAHS in Vienna, 30.7.-3.8.2001. Hartl, R.F. (2001), An Age Structured Model for Drug Dynamics and Violence Control. Workshop on Spatial Aspects of Demography in Rostock (MPI), 16.-17.5.2001. (more information) Hartl, R.F. (with Karl Doerner) (2001), Ant Colony Optimization in Multiobjective Portfolio Selection. MIC'2001 (Metaheuristics International Conference), 16.-20.7.2001. (more information) 2000 (top)Hartl, R.F. (2000), History dependence in simple capital accumulation models. 7th Viennese Workshop on Optimal Control, Dynamic Games and Nonlinear Dynamics, 24-26.5.2000. (more information) Hartl, R.F. (2000), Economic Applications in Age Specific Optimal Control Models. CentER for Economic Research in Tilburg, 12.10.2000. (more information) Hartl, R.F. (2000), Pickup and Delivery of Full Truckloads Using Ant System. OR 2000 in Dresden, 9.-12.9.2000. Hartl, R.F. (2000), Time constrained pickup and delivery of full truckloads. EURO XVII in Budapest, 16.-19.7.2000. (more information) Hartl, R.F. (2000), History Dependence in Simple Accumulation Models. Fachbereichsseminar Universität des Saarlandes in Saarbrücken, 26.6.2000. 1999 (top)Hartl, R.F. (1999), Mixed Model Assembly. Fifth International Conference on Approximation and Optimization in Guadeloupe, 31.3.1999. (more information) 1998 (top)Hartl, R.F. (1998), WeSpE - Werker- und Springereinsatzplanung in der LKW-Produktion. Workshop zu Variantenfließfertigung bei PROFACTOR in Steyr, 29.5.1998. 1997 (top)Hartl, R.F. (1997), Ant System in Logistics: A New Rank Based Version of the Ant System. SOR 97 in Jena, 3.9.1997. Hartl, R.F. (presented by coauthor B. Bullnheimer) (1997), The Ant System and ist Application to Combinatorial Optimization Problems. 6th Viennese Workshop on Optimal Control, Dynamic Ganes, Nonlinear Dynamic systems and Adaptive Systems in Wien, 23.5.1997. (more information) 1996 (top)Hartl, R.F. (1996), Quantitative Methoden der BWL. PROFACTOR in Steyr, 3.7.1996. Hartl, R.F. (1996), Überblick über die OR-bezogene Forschung am Institut für Betriebswirtschaftslehre der Uni Wien. ÖGOR/SVOR-Tagung in St. Gallen, 10.9.1996. 1995 (top)Hartl, R.F. (1995), Nichtlineare Dynamik in betriebswirtschaftlichen Modellen. Kolloquium zu Nichtlinearität und Unordnung in komplexen Systemen in Magdeburg, 6.2.1995. Hartl, R.F. (presented by coauthor P. Kort) (1995), Capital accumulation of a firm facing an environmental tax. Workshop on Environmental Economics in Venice, 11.5.1995. 1994 (top)Hartl, R.F. (1994), Optimal input substitution subject to environmental constraints. Operations Research 1994 in Berlin, 30.8.-2.9.1994. Hartl, R.F. (1994), Marketable permits in a stochastic dynamic model of the firm. EURO XIII / OR 36 in Glasgow, 19.-22.7.1994. Hartl, R.F. (1994), Ein ökonomisches Kontrollmodell der Produktion und Investition mit mehrfachen Gleichgewichten. Humbolt-Universität zu Berlin, 5.5.1994. Hartl, R.F. (1994), Capital accumulation of a firm facing environmental constraints when capacity can remain unused. CentER for Economic Research in Tilburg, 24.3.1994. Hartl, R.F. (1994), Produktion und Investition unter Umweltauflagen. BWZ der Universität Wien, 16.3.1994. Hartl, R.F. (presented by P.M. Kort) (1994), Capital accumulation, input substitution and the usage of capacity of a firm facing environmental constraints. Designing Economic Policy for Management of Natural Resources and the Environment in Rethymnon, 7.-9.9.1994. 1993 (top)Hartl, R.F. (1993), An optimal control model of pollution control. Approximation and Optimization in Havanna, 26.9.-1.10.1993. Hartl, R.F. (1993), Capital accumulation and environmental constraints under atomistic competition. 17. Symposium on Operations Research in Köln, 1.-3.9.1993. 1992 (top)Hartl, R.F. (1992), Ein Modell der optimalen Investition unter Umweltauflagen. Technische Universität "Otto von Guericke" in Magdeburg, 5.12.1992. Hartl, R.F. (1992), Lastprognose in der Energiewirtschaft mittels neuronaler Netze. DGOR-ÖGOR Jahrestagung 1992 in Aachen, 9.-11.9.1992. Hartl, R.F. (1992), Necessary Properness Conditions in Optimal Periodic Control. 17. Symposium on Operations Research in Hamburg, 25.-28.8.1992. Hartl, R.F. (1992), Optimierungsverfahren in der Kraftwerkseinsatzplanung. Universität der Bundeswehr in Hamburg, 15.6.1992. 1991 (top)Hartl, R.F. (1991), Neuronale Netze. PIB Veranstaltung EDV und Organisation in Steyr, 6.11.1991. Hartl, R.F. (1991), Production smoothing under environmental constraints in the Pekelman model. DGOR Jahrestagung 1991 in Hohenheim/Stuttgart, 11.-13.9.1991. Hartl, R.F. (1991), Cycles of fear. 4th Viennese Workshop on Dynamic Economic Models and Optimal Control in Wien, 12.-14.6.1991. Hartl, R.F. (1991), Übersichtsvortrag über Dynamic Economics. Universität Würzburg, 31.5.1991. Hartl, R.F. (1991), Optimierungsverfahren in der Kraftwerkseinsatzplanung. Universität Wien, 13.5.1991. Hartl, R.F. (1991), Acquisition of pollution control equipment under uncertainty of the compliance date. Ökonomische Hochschule in Bratislawa, 18.2.1991. 1990 (top)Hartl, R.F. (1990), Opposition of the Dissertation by DRs. Onno van Hilten. Rijksuniversiteit Limburg in Maastricht, 19.-20.4.1990. Hartl, R.F. (1990), Kostenminimierung in einem Kraftwerksunternehmen. Fernuniversität Hagen, 16.10.1990. Hartl, R.F. (1990), Optimaler Kraftwerkseinsatz: ein großes nichtlineares Optimierungsproblem. Operations Research 1990 in Wien, 28.-31.8.1990. Hartl, R.F. (1990), A genetic algorithm with global convergenve properties. International Workshop on Computationally-intensive Methods in Simulation an Stochastic Optimization in Laxenburg (IIASA), 23.-25.8.1990. 1989 (top)Hartl, R.F. (1989), Production-inventory planning under environmental constraints. International Conference on Microeconomic Analysis in Liblice bei Prag, 20.-24.3.1989. Hartl, R.F. (1989), Verfahren in der Optimierung des Kraftwerkseinsatzes. ÖGOR Jahrestagung 1989 in Wr.Neustadt, 7.12.1989. Hartl, R.F. (1989), Kraftwerkeinsatzplanung mittels zufallsgesteuerter Suchstrategien. DGOR Jahrestagung 1989 in Kiel, 13.-15.9.1989. Hartl, R.F. (1989), Optimal acquisition of pollution control equipment under uncertainty. 14. Symposium on Operations Research in Ulm, 8.-8.9.1989. 1988 (top)Hartl, R.F. (1988), Qualitative analysis of hierarchical equilibria in differential games; and Produktionsmix mit nichtkonvexen Kosten. DGOR Jahrestagung 1988 in Berlin, 14.-16.9.1988. Hartl, R.F. (1988), Optimal acquisition of pollution control equipment subject to uncertain legislation dates. 13. Symposium on Operations Research in Paderborn, 7.-9.9.1988. Hartl, R.F. (1988), Recent developments in optimal control models of advertising. EURO IX/TIMS XXVIII in Paris, 6.-8.7.1988. Hartl, R.F. (1988), Production smoothing under environmental constraints. Fifth International Symposium on Inventories in Budapest, 22.-26.8.1988. 1987 (top)Hartl, R.F. (1987), A wheat trading model with demand and spoilage; and Aspects of optimal slidesmanship. 3rd Viennese Workshop on Optimal Control Theory and Economic Analysis in Wien, 20.-22.5.1987. Hartl, R.F. (1987), Most Rapid Approach Paths in dynamic economic problems. 12. Symposium on Operations Research in Passau, 9.-11.9.1987. Hartl, R.F. (1987), Production smoothing subject to pollution control regulations. Seminar an der Univ. Tilburg, 21.-22.9.1987. Hartl, R.F. (1987), Optimal production mix. DGOR-NSOR Jahrestagung 1987 in Eindhoven, 23.-25.9.1987. 1986 (top)Hartl, R.F. (1986), The dynamic Averch-Johnson effect. 11. Symposium on Operations Research in Darmstadt, 1.-3.9.1986. 1985 (top)Hartl, R.F. (1985), Optimality of cyclical solutions in optimal control. Seminar am Institute of Economics, Universität Oslo, 29.7.-3.8.1985. Hartl, R.F. (1985), Environmental constraints and choice of technology. 10. Symposium on Operations Research in München, 26.-28.8.1985. 1984 (top)Hartl, R.F. (1984), On remuneration patterns for medical services. TIMS XXVI in Kopenhagen, 17.-21.6.1984. Hartl, R.F. (1984), (National contribution of Austria) A survey of the optimality conditions for optimal control problems with state variable inequality constraints. IFORS Jahrestagung 84 in Washigton, DC, 6.-10.8.1984. Hartl, R.F. (1984), Simplex method in continuous time and generalized optimal control problems. 2nd Viennese Workshop on Optimal Control Theory and Economic Analysis in Wien, 16.-18.5.1984. Hartl, R.F. (1984), Optimal production and abatement policy: a dynamic activity analysis. Mathematische Optimierung und Anwendungen in Eisenach, 26.-30.11.1984. 1983 (top)Hartl, R.F. (1983), Optimal production and inventory planning: An application of the maximum principle for problems with non-differentiable functions. Seminar on the Dynamics of the Firm in Brüssel (EIASM), 10.-11.1.1983. Hartl, R.F. (1983), Optimal manpower policies in a dynamic staff maximizing bureau. EURO VI in Wien, 19.-22.7.1983. Hartl, R.F. (1983), Eine Übersicht über das Maximumprinzip für optimale Kontrollprobleme mit Zustandsnebenbedingungen. DGOR Jahrestagung 1983 in Mannheim, 21.-23.9.1983. 1981 (top)Hartl, R.F. (1981), Das Transylvanische Problem der erneuerbaren Ressourcen. ÖGOR-NÖG Jahrestagung 1981 in Wien, 28.-29.9.1981. Hartl, R.F. (1981), A mixed linear-nonlinear optimization model of production and maintenance for a machine. Workshop on Optimal Control Theory and Economic Analysis in Wien, 28.-30.10.1981. 1980 (top)Hartl, R.F. (1980), Optimale Maschinenbetriebs- und Instandhaltungspolitik. ÖGOR-SVOR '80 in Wien, 22.-24.9.1980. |
Presentations 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1981 1980 |
|||||||