Faculty of Business, Economics and Statistics Department of Business Administration

Chair of Production and Operations Management
(Lehrstuhl für Produktion und Logistik)

Presentations

Internal View

Presentations of Richard F. Hartl

2014 (top)

Hartl, R.F. (2014), Lateral Transhipments and Routing. Ninth International Colloquium on Graphs and Optimization, Sirmione, Italy
July 6 - 10. (more information)


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)


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)

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.


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),
September 3-6, Rotterdam, Netherlands. (Abstract) (more information)


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,
December 6, Salzburg, Austria.


2012 (top)

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)


Schnell, A., Hartl, R.F. (2012), A preprocessing procedure to improve recent exact algorithms for the resource-constrained project
scheduling problem.
. 25th European Conference on Operational Research July 8-11, 2012, Vilnius, Litauen. (Abstract) (more information)


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
Windows
. VeRoLog Conference 2012, 18.06-20.06.2012 Bologna. (more information)


2011 (top)

Hartl, R.F. (2011), Der Nutzen von Optimierungsverfahren in der Tourenplanung.
Wie kann man auch unvorhersehbare Ereignisse berücksichtigen?
. (more information)
  Downloads: Har_2011_520.zip


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.


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)


Turan, B., Schmid, V., Hartl, R.F. (2011), Models for newspaper delivery. 2nd Workshop on Young Academics' Management Science - YAMS
02.12-03.12.2011.


2010 (top)

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.


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)


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)


2009 (top)

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
problem with limited buffer
. Multidisciplinary International Conference on Scheduling : Theory and
Applications (MISTA 2009), 10th - 13th August 2009, Dublin.


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
a Firm Selling a Conspicuous Product
. CentER seminar series in Operations Researchon; September 24, Thursday,
Tilburg, Niederlande:.


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
Product
. Second Workshop on Dynamic Games in Management Science; June 28 - 30,.


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., 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., 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., 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
Multiple Time Windows
. EU/MEeting 2008 - Troyes, France, October 23–24, 2008. (more information)
  Downloads: Tri_2008_399.pdf


2007 (top)

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., Almeder, C., Gronalt, M., Hartl, R.F. (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,
Phuket, Thailand, June 2007. (more information)


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
. (Abstract) (more information)


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,
Brescia, Italy, October 2006. (more information)


Pasia, J.M., Hartl, R.F., Doerner, K.F. (2006), Solving a Bi-objective Flowshop Scheduling
Problem by Pareto-Ant Colony Optimization
. ANTS 2006: Fifth International Workshop on Ant Colony Optimization
and Swarm Intelligence, Bussels, September 4-7. (more information)


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)
  Downloads: Pol_2006_298.pdf


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,
University of Bologna Residential Center, Bertinoro. (more information)


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., Almeder, C., Hartl, R.F., Klug, M. (2005), Hybrid Supply Chain Modelling - Combining LP-Models and Discrete-Event Simulation. ORP3 - Operational Research Peripatetic Postgraduate Programme, Valencia, Spain.


2004 (top)

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, Hartl RF, Dörner K (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)

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.




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