This exciting new text reveals both the evolution of this programming paradigm since its inception and the impressively broad scope of current research in the field. The contributors to this book are all leading world experts in Logic Programming, and they deal with both theoretical and practical issues. They address such diverse topics as: computational molecular biology, machine learning, mobile computing, multi-agent systems, planning, numerical computing and dynamical systems, database systems, an alternative to the "formulas as types" approach, program semantics and analysis, and natural language processing. XXXXXXX Neuer Text Logic Programming was founded 25 years ago. This exciting book reveals both the evolution of this programming paradigm and its impressively broad scope of current research. The contributions by leading computer scientists deal with both theoretical and practical issues. They address diverse topics such as: computational molecular biology, machine learning, mobile computing, multi-agent systems, numerical computing and dynamical systems, database systems, program semantics, natural language processing, and promising future directions.

This volume contains the proceedings of the 25th International Conference on Logic Programming (ICLP 2009). The conference took place in Pasadena, Ca- fornia during July 14-17, 2009. The ICLP series of conferences is aimed at p- viding a technical forum for presenting and disseminating innovative research results in the ?eld of logic programming. Theconference,whichwasco-locatedwiththeInternationalJointConference on Arti?cial Intelligence (IJCAI), featured technical presentations, tutorials, - vited talks, and a number of special events, including: - The 5th ICLP Doctoral Student Consortium - The Second Workshop on Answer Set Programming and Other Computing Paradigms (ASPOCP) - The 6th International Workshop on Constraint Handling Rules (CHR) - The 9th International Colloquium on Implementation of Constraint and LOgic Programming Systems (CICLOPS) - The 4th International Workshop on (Constraint) Logic Programming and Software Engineering (CLPSE) - The First Workshop on Commercial Users of Logic Programming (CULP) - Workshop on ISO Prolog - WG17 - The 19th Workshopon Logic-basedmethods in ProgrammingEnvironments (WLPE) Since the ?rst conference held in Marseilles in 1982, ICLP has been the p- miere international conference for disseminating research results in logic p- gramming. The present edition of the conference received 69 submissions in three categories:application, system and tool, and technical papers. From these, the ProgramCommittee selected 29 papers for presentation and inclusion in the proceedings. In addition, the committee selected nine short papers describing on-going research work, PhD theses and research project overviews for poster presentations and inclusion in the proceedings.

This book constitutes the refereed proceedings of the 10th International Symposium on Practical Aspects of Declarative Languages, PADL 2008, held in San Francisco, CA, USA, in January 2008, colocated with POPL 2008, the Symposium on Principles of Programming Languages.

The 20 revised full papers presented together with the abstract of 1 invited talk were carefully reviewed and selected from 44 submissions. The papers address all current aspects of declarative programming and feature original work emphasizing novel applications and implementation techniques for all forms of declarative concepts, including functions, relations, logic, and constraints.

This volume was motivated by the Year of Prolog initiative, launched to celebrate the 50th anniversary of the emergence of Prolog through the work of Alain Colmerauer’s team in Marseille. The volume editors, authors, and scientific advisors and reviewers have been the leading researchers and programmers in this field over decades, and the book represents an excellent overview of the field, its successes, and its future.After a first chapter that gently introduces the Prolog programming language using examples, the next 7 papers discuss general views of the language, possible extensions for the future, and how Prolog can generally be used to solve problems; the next 5 papers explore ideas and experiences of teaching Prolog programming and then 2 papers discuss technology that has been developed for help in that teaching; the next 3 papers describe new languages based on Prolog which show future directions for logic programming; the next 5 chapters explain the applications that were the finalists for the 2022 Alain Colmerauer Prize; and the final 8 papers describe applications developed using the Prolog language, demonstrating the language’s range.