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Invited Talks.- Achieving Type Safety for Low-Level Code.- Logic Information Systems for Logic Programmers.- A Logic Programming View of Authorization in Distributed Systems.- Compositional Verification of Infinite State Systems.- A Constraint-Based Approach to Structure Prediction for Simplified Protein Models That Outperforms Other Existing Methods.- Invited Tutorials.- Concurrency, Time, and Constraints.- Symbolic Model-Checking for Biochemical Systems.- Component-Based Software Development and Logic Programming.- A Tutorial on Proof Theoretic Foundations of Logic Programming.- Regular Papers.- Objective: In Minimum Context.- Handling Existential Derived Predicates in View Updating.- Efficient Evaluation of Logic Programs for Querying Data Integration Systems.- Argumentation Databases.- Order and Negation as Failure.- Computing Minimal Models, Stable Models, and Answer Sets.- Uniform Equivalence of Logic Programs under the Stable Model Semantics.- Answer Set Programming Phase Transition: A Study on Randomly Generated Programs.- Termination Analysis with Types Is More Accurate.- A Propagation Tracer for GNU-Prolog: From Formal Definition to Efficient Implementation.- Intensional Sets in CLP.- Implementing Constraint Propagation by Composition of Reductions.- Forward versus Backward Verification of Logic Programs.- Native Preemptive Threads in SWI-Prolog.- Flow Java: Declarative Concurrency for Java.- On the Complexity of Dependent And-Parallelism in Logic Programming.- Higher-Order Substitution Tree Indexing.- Incremental Evaluation of Tabled Logic Programs.- On Deterministic Computations in the Extended Andorra Model.- Timed Concurrent Constraint Programming: Decidability Results and Their Application to LTL.- Is There an Optimal Generic Semantics for First-Order Equations?.- Loop Formulas for Disjunctive Logic Programs.- Default Knowledge in Logic Programs with Uncertainty.- Posters.- A Generic Persistence Model for (C)LP Systems.- Definitions in Answer Set Programming.- A New Mode Declaration for Tabled Predicates.- Adding the Temporal Relations in Semantic Web Ontologies.- Polynomial-Time Learnability from Entailment.- Integration of Semantic Networks for Corpus-Based Word Sense Disambiguation.- Development and Application of Logical Actors Mathematical Apparatus for Logic Programming of Web Agents.- A Real Implementation for Constructive Negation.- Simulating Security Systems Based on Logigrams.- Online Justification for Tabled Logic Programs.- Inducing Musical Rules with ILP.- A Distinct-Head Folding Rule.- Termination Analysis of Logic Programs.- Refactoring Logic Programs.- Termination of Logic Programs for Various Dynamic Selection Rules.- Adding Preferences to Answer Set Planning.- Controlling Semi-automatic Systems with FLUX.- The Language Model LMNtal.