Silvia Richter

About Me

Publications

• Silvia Richter and Matthias Westphal. The LAMA Planner: Guiding Cost-Based Anytime Planning with Landmarks. Journal of Artificial Intelligence Research (JAIR) 39, pp. 127-177, 2010. PDF
   
  
• Emil Keyder, Silvia Richter and Malte Helmert. Sound and Complete Landmarks for And/Or Graphs. Proceedings of the 19th European Conference on Artificial Intelligence (ECAI-10), pp. 335-340, 2010. PDF | Slides
   
  
• Silvia Richter, Jordan T. Thayer and Wheeler Ruml. The Joy of Forgetting: Faster Anytime Search via Restarting. Proceedings of the 20th International Conference on Automated Planning and Scheduling (ICAPS-10), pp. 137-144, 2010. PDF | Slides
   
  
• Silvia Richter and Malte Helmert. Preferred Operators and Deferred Evaluation in Satisficing Planning. Proceedings of the 19th International Conference on Automated Planning and Scheduling (ICAPS-09), pp. 273-280, 2009. PDF | Slides
   
  
• Silvia Richter, Jordan T. Thayer and Wheeler Ruml. The Joy of Forgetting: Faster Anytime Search via Restarting. Proceedings of the International Symposium on Combinatorial Search (SoCS-09), 2009. PDF | Slides
  Note: Superseded by the ICAPS 2010 paper of the same name.
   
  
• Silvia Richter, Malte Helmert and Matthias Westphal. Landmarks Revisited. Proceedings of the 23rd AAAI Conference on Artificial Intelligence (AAAI-08), pp. 975-982, 2008. PDF | Slides
  Note: After publication, we found a bug in our implementation that affected the results in the columns "CG heuristic/local" and "blind heuristic/local" of Table 1. The version of the paper available for download here corrects these errors.
   
  
• Silvia Richter, Malte Helmert and Charles Gretton. A Stochastic Local Search Approach to Vertex Cover. Proceedings of the 30th German Conference on Artificial Intelligence (KI-2007), pp. 412-426, 2007. PDF | Slides
   
  
• Silvia Richter, Doug Aberdeen and Jin Yu. Natural Actor-Critic for Road Traffic Optimisation. Neural Information Processing Systems (NIPS) Conference, pp. 1169-1176, 2006. PDF

Shorter Papers

• Silvia Richter, Matthias Westphal and Malte Helmert. LAMA 2008 and 2011. Short paper for the International Planning Competition 2011. PDF
   
  
• Silvia Richter and Matthias Westphal. The LAMA Planner. Using Landmark Counting in Heuristic Search. Short paper for the International Planning Competition 2008. PDF
   
  
• Malte Helmert and Silvia Richter. Fast Downward - Making Use of Causal Dependencies in the Problem Representation. Proceedings of the International Planning Competition 2004, pp. 41-43, 2004. PDF

Theses

• Silvia Richter. Landmark-Based Heuristics and Search Control for Automated Planning. PhD Thesis, Griffith University, 2010. PDF
   
  
• Silvia Richter. Learning Road Traffic Control -- Towards Practical Traffic Control Using Policy Gradients. Master Thesis, University of Freiburg, 2006. PDF

Tutorials

• Erez Karpas and Silvia Richter. Landmarks - Definitions, Discovery Methods and Uses. Presented at ICAPS 2010. Slides
   
  
• Emil Keyder and Silvia Richter. Heuristics for Domain-Independent Planning. Presented at the ACAI Summer School 2011. Slides

Software

• LAMA 2011, a planning system for classical AI planning. Winner of the sequential satisficing track at the International Planning Competition 2011. tar.gz
   
  
• LAMA 2008. Winner of the sequential satisficing track at the International Planning Competition (IPC-6) 2008. Includes some bug fixes since the 2008 competition. tar.gz
   
  
• COVER, a stochastic local search algorithm for k-Vertex Cover. tar.gz

Other Activities

• I have been a program committe member for ICAPS 2010 and AAAI 2011 and have reviewed for JAIR, AIJ and various conferences.