Automata, Languages and Programming: 27th International Colloquium, ICALP 2000, Geneva, Switzerland, July 9-15, 2000 Proceedings [Paperback]

This book constitutes the refereed proceedings of the 27th International Colloquium on Automata, Languages and Programming, ICALP 2000, held in Geneva, Switzerland in July 2000. The 69 revised full papers presented together with nine invited contributions were carefully reviewed and selected from a total of 196 extended abstracts submitted for the two tracks on algorithms, automata, complexity, and games and on logic, semantics, and programming theory. All in all, the volume presents an unique snapshot of the state-of-the-art in theoretical computer science.Invited Talk.- Game Semantics: Achievements and Prospects.- Clique Is Hard to Approximate within n 1-o(1).- Approximating the Independence Number and the Chromatic Number in Expected Polynomial Time.- Closed Types as a Simple Approach to Safe Imperative Multi-stage Programming.- A Statically Allocated Parallel Functional Language.- An Optimal Minimum Spanning Tree Algorithm.- Improved Shortest Paths on the Word RAM.- Improved Algorithms for Finding Level Ancestors in Dynamic Trees.- Lax Logical Relations.- Reasoning about Idealized ALGOL Using Regular Languages.- The Measurement Process in Domain Theory.- Invited Talk.- Graph Transformation as a Conceptual and Formal Framework for System Modeling and Model Evolution.- Monotone Proofs of the Pigeon Hole Principle.- Fully-Abstract Statecharts Semantics via Intuitionistic Kripke Models.- Algebraic Models for Contextual Nets.- Asymptotically Optimal Bounds for OBDDs and the Solution of Some Basic OBDD Problems.- Measures of Nondeterminism in Finite Automata.- LTL Is Expressively Complete for Mazurkiewicz Traces.- An Automata-Theoretic Completeness Proof for Interval Temporal Logic.- Invited Talk.- Which NP-Hard Optimization Problems Admit Non-trivial Efficient Approximation Algorithms?.- Deterministic Algorithms for k-SAT Based on Covering Codes and Local Search.- Closest Vectors, Successive Minima, and Dual HKZ-Bases of Lattices.- Variable Independence, Quantifier Elƒ(