Abstraction, Reformulation, and Approximation

Invited Presentations.- Model Checking and Abstraction.- Reformulation in Planning.- Spatiotemporal Abstraction of Stochastic Sequential Processes.- State Space Relaxation and Search Strategies in Dynamic Programming.- Invited Presentations.- Admissible Moves in Two-Player Games.- Dynamic Bundling: Less Effort for More Solutions.- Symbolic Heuristic Search Using Decision Diagrams.- On the Construction of Human-Automation Interfaces by Formal Abstraction.- Pareto Optimization of Temporal Decisions.- An Information-Theoretic Characterization of Abstraction in Diagnosis and Hypothesis Selection.- A Tractable Query Cache by Approximation.- An Algebraic Framework for Abstract Model Checking.- Action Timing Discretization with Iterative-Refinement.- Formalizing Approximate Objects and Theories: Some Initial Results.- Model Minimization in Hierarchical Reinforcement Learning.- Learning Options in Reinforcement Learning.- Approximation Techniques for Non-linear Problems with Continuum of Solutions.- Approximation of Relations by Propositional Formulas: Complexity and Semantics.- Abstracting Visual Percepts to Learn Concepts.- Short Presentations.- PAC Meditation on Boolean Formulas.- On the Reformulation of Vehicle Routing Problems and Scheduling Problems.- The Oracular Constraints Method.- Performance of Lookahead Control Policies in the Face of Abstractions and Approximations.- TTree: Tree-Based State Generalization with Temporally Abstract Actions.- Ontology-Driven Induction of Decision Trees at Multiple Levels of Abstraction.- Research Summaries.- Abstracting Imperfect Information Game Trees.- Using Abstraction for Heuristic Search and Planning.- Approximation Techniques in Multiagent Learning.- Abstraction and Reformulation in GraphPlan.- Abstract Reasoning for Planning and Coordination.- Research Summary: Abstraction Techniques, and Their Value.- Reformulation of Non-binary Constraints.- Reformulating Combinatorial Optimization as Constraint Satisfaction.- Autonomous