Charypar, David, Dr.

ETH Zurich Dr. David Charypar Institute for Transport Planning and Systems (IVT) HIL F 51.1 Wolfgang-Pauli-Str. 15 8093 Zurich SWITZERLAND Phone: +41 44 633 35 62 E-Mail:

Research Interests

• Traffic flow simulation and parallelization
• Algorithms and data structures
• Artificial intelligence (evolutionary algorithms), stochastic optimization
• Modeling and simulating physical systems
• Computer graphics
• Fluid simulation and -analysis
• Robotics and computer vision

Projects

• Development of a software framework for modular spacial simulations
• Development of a need-based travel behavior model for simulation of unforeseen events
• Development of an event-driven agent-based microsimulation of traffic flow
• Employing the covariance matrix adaptation evolution strategy (CMA-ES) to accelerate and improve agent learning
• Employing Q-Learning for flexible learning of daily activity plans in an agent-based transport microsimulation
• Generation of complete activity plans for a agent-based transport simulation using a genetic algorithm
• Optimization of a Formula One rear wing using numerical fluid dynamics and an evolution strategy
• Master thesis Real-time Fluid Simulation: Development of an interactive fluid simulation using smoothed particle hydrodynamics (SPH)mics (SPH)
• Internship with Schindler AG: Development of a Simulator for testing elevator control systems

Work Experience

since 2009

Research associate, Institute for Transport Planning and Systems (IVT), ETH Zurich

2003-2008

Graduate researcher and teaching assistant, ETH Zurich

2002

Computer Science internship, Schindler AG, Ebikon

1998-2001

Computer and networking supporter, CDC Codacom AG, Kilchberg

1998

Server operator and office assistant, Swiss Bank Corporation, Zürich

Education

2008

Doctor of Sciences, ETH Zürich
Title of the dissertation: Efficient Algorithms for the Microsimulation of Travel Behavior in Very Large Scenarios

2003-2008

Doctoral studies, ETH Zürich

2003

Master of Science in Computer Science, ETH Zürich
Title of the Master Thesis: Real-Time Fluid-Simulation (translated title)

1998-2003

Studies of Computer Science, ETH Zürich

1998

University-entrance diploma, mathematical- and scientific type (Matura Typ C)

1993-1998

Attending Mathematisch- Naturwissenschafliches Gymnasium Rämibühl, Zürich (secondary school)

1991-1993

Attending Kantonsschule Limmattal, Urdorf (secondary school)

Publications

• Märki, F., D. Charypar and K.W. Axhausen (forthcoming) Continuous activity planning for a continuous
  traffic simulation, Transportation Research Record.
• Horni, A., D. Charypar and K.W. Axhausen (2011) Variability in Transport Microsimulations Investigated for MATSim: Preliminary Results, paper presented at the 11th Swiss Transport Research Conference, Ascona, May 2011.
• Charypar, D., F. Märki and K.W. Axhausen (2011) Integrating two Simulation Modules with a General Parallelization Framework, paper presented at the 11th Swiss Transport Research Conference, Ascona, May 2011.
• Horni, A., D. Charypar and K.W. Axhausen (2011) Empirically approaching destination choice set formation, paper presented at the 90th Annual Meeting of the Transportation Research Board, Washington, D.C., January 2011
• Märki, F., D. Charypar and K.W. Axhausen (2011) Continuous planning for continuous simulation, paper presented at the 90th Annual Meeting of the Transportation Research Board, Washington, D.C., January 2011.
• Charypar, D., A. Horni and K.W. Axhausen (2010) Pushing the Limits: A Concept of a Parallel Microsimulation Framework, Working paper, 640, IVT, ETH Zürich, Zürich.
• Balmer, M., M. Rieser, K. Meister, D. Charypar, N. Lefebvre and K. Nagel (2009) MATSim-T: Architecture and simulation times, in A. L. C. Bazzan and F. Klügl (eds.) Multi-Agent Systems for Traffic and Transportation Engineering, 57–78, Information Science Reference, Hershey.
• Balmer, M., A. Horni, K. Meister, D. Charypar, F. Ciari und K. W. Axhausen (2009) Wirkungen der Westumfahrung Zürich: Eine Analyse mit einer agentenbasierten Mikrosimulation, Final report, Baudirektion Kanton Zürich, IVT, ETH Zürich, Zürich.
• Charypar, D., M. Balmer and K. W. Axhausen (2009) A High-Performance Traffic Flow Microsimulation for Large Problems, paper presented at the 88th Annual Meeting of the Transportation Research Board, Washington, D.C., January 2009.
• Charypar, D. (2008) Efficient Algorithms for the Microsimulation of Travel Behavior in Very Large Scenarios, Dissertation, ETH Zürich, Zürich.
• Charypar, D., M. Balmer, and K. W. Axhausen (2008) A High-Performance Traffic Flow Microsimulation for Large Problems, Working paper, 509, Institute for transport planning and system (IVT), ETH Zurich, Zurich.
• Balmer, M., M. Rieser, K. Meister, D. Charypar, N. Lefebvre, K. Nagel and K. W. Axhausen (2008) MATSim-T: Architektur und Rechenzeiten, paper presented at the Heureka '08, Stuttgart, March 2008.
• Charypar, D., K. Nagel and K.W. Axhausen (2007) Event-Driven Queue-Based Traffic Flow Microsimulation,Transportation Research Record, 2003, 35-40.
• Charypar, D., K. W. Axhausen, and K. Nagel (2007) An Event-Driven Parallel Queue-Based Microsimulation for Large Scale Traffic Scenarios, paper presented at the 11th World Conference of Transport Research, Berkeley, June 2007.
• Charypar, D., K. Nagel and K.W. Axhausen (2007) An Event-Driven Queue-Based Traffic Flow Microsimulation, paper presented at the 86th Annual Meeting of the Transportation Research Board, Washington, D.C., January 2007.
• Charypar, D., K.W. Axhausen, K. Nagel (2006) Implementing activity-based models: Accelerating the Replanning Process of Agents Using an Evolution Strategy, paper presented at the 11th International Conference on Travel Behaviour Research, Kyoto, August 2006.
• Charypar, D. and K. Nagel (2006) Q-learning for Flexible Learning of Daily Activity Plans, Transportation Research Record, 1935, 163-169.
• Charypar, D. and K. Nagel (2005) Generating Complete All-Day Activity Plans with Genetic Algorithms, Transportation, 32 (4) 369-397.
• Charypar, D. and K. Nagel (2003) Generating Complete All-Day Activity Plans with Genetic Algorithms, Proceedings of the conference of the International Association for Travel Behaviour Research, Lucerne, July, 2003.
• Müller, M., D. Charypar and M. Gross (2003) Particle-Based Fluid Simulation for Interactive Applications, Proceedings of 2003 ACM SIGGRAPH Symposium on Computer Animation, San Diego, July 2003.