Program

Saturday, 16 July 2011

20:30Dinner

Sunday, 17 July 2011

8:45 Welcome - Peter Revesz
9:00 Keynote Address
Life: play and win in 20 trillion moves
Stuart Russell
How can we design systems that can achieve reasonable decision quality over long time scales? One approach is based on temporal abstraction, allowing deliberation over action choices of long duration. The talk will explore this idea first in the classical planning context, where the longstanding open problem of "downward refinement" is resolved. In the context of hierarchical reinforcment learning, the idea of partial programming provides a powerful and flexible method of specifying constraints on behavior, leaving unspecified those choices that the agent must learn to make on its own. Many avenues remain for further development of these ideas.
10:00Break
10:30 Session 1 - Discrete Event Systems
The Markov Reformulation Theorem
Michael Kassoff and Michael Genesereth
Automatic Synthesis of Temporal Invariants
Sara Bernardini and David E. Smith
Reformulation for the Diagnosis of Discrete-Event Systems
Alban Grastien and Gianluca Torta
A Theory of Abstraction for Diagnosis of Discrete-Event Systems
Grastien Alban and Gianluca Torta
12:00Break
13:30Lunch
14:30 Session 2 - Planning
Planning with State Uncertainty via Contingency Planning and Execution Monitoring
Minlue Wang and Richard Dearden
Satisfiability Modulo Theories: an Efficient Approach
for the Resource-Constrained Project Scheduling Problem
Carlos Ansotegui, Miquel Bofill, Miquel Palahi, Josep Suy, and Mateu Villaret
Does Representation Matter in the Planning Competition?
Patricia Riddle, Robert C Holte, and Michael W Barley
14:30Break
16:00 Session 3 - Space-Time
Spatiotemporal Interpolation Methods for Air Pollution Exposure
Lixin Li, Xingyou Zhang, James Holt, Jie Tian, and Reinhard Piltner
Path Symmetries in Undirected Uniform-Cost Grids
Daniel Harabor, Adi Botea, and Philip Kilby
Extracting Topological Information from Spatial Constraint Databases
Shasha Wu and Peter Revesz
17:00Break
20:30Dinner


Monday, 18 July 2011

9:00 Session 4 - Constraint Satisfaction Problems
Reformulating Dynamic Linear Constraint Satisfaction Problems as Weighted CSPs for Searching Robust Solutions
Laura Climent, Miguel Angel Salido, and Federico Barber
Reformulating R(*, m)C with Tree Decomposition
Shant Karakashian, Robert Woodward, and Berthe Choueiry
Reformulating the Dual Graphs of CSPs to Improve the Performance of Relational Neighborhood Inverse Consistency
Robert J. Woodward, Shant Karakashian, Berthe Choueiry, and Christian Bessiere
A Reformulation Strategy for Multi-Dimensional CSPs: The Case Study of the SET Game
Amanda Swearngin, Berthe Choueiry, and Eugene Freuder
10:30Break
11:00 Panel - Abstraction, Reformulation, and Approximation
Panelist: Rob Holte
Panelist: Prasenjit Mitra
Panelist: Peter Revesz
Panelist: Henry Soldano
 
Moderator: Michael Genesereth
 
Questions to be addressed: Is there a common theory of ARA that bridges application areas (Reasoning, CSPs, Databases, Planning, Learning, and so forth). Is it possible / desirable to devise an ARA calculus (akin to resolution in logical reasoning)? What are the relative advantages and disadvantages of having a community focussed on ARA as well as / as opposed to presenting ARA ideas within other communities (such as CSPs)?
12:00Break
13:30Lunch
14:30 Session 5 - Machine Learning
A modal view on abstract learning and reasoning
Henry Soldano
Simultaneous Abstract and Concrete Reinforcement Learning
Tiago Matos, Yannick Bergamo, Valdinei Silva, Fabio Cozman, and Anna Costa
15:30Break
16:00 Session 6 - Applications
Classifying Scientific Publications Using Abstract Features
Cornelia Caragea, Adrian Silvescu, Saurabh Kataria, Doina Caragea, and Prasenjit Mitra
Efficient Pseudo-Boolean Satisfiability Encodings for Routing and Wavelength Assignment in Optical Networks
Miroslav Velev and Ping Gao
Modular Schemes for Constructing Equivalent Boolean Encodings of Cardinality Constraints and Application to Error Diagnosis in Formal Verification of Pipelined Microprocessors
Miroslav Velev and Ping Gao
Approximate Search on Protein Structures for Identification of Horizontal Gene Transfer in Bacteria
Swetha Billa, Mark Griep, and Peter Revesz