Giorgio Levi – författare

Logic programming has emerged over the last 15 years as one of most promising new programming paradigms and as a very active research area.The PROGLOG experience has shown that relevant problems in areas such as expert systems, deductive databases, knowledge representation, and rapid prototyping can profitably be tackled by logic programming technology. It has also known that the performance of PROGLOG systems can be made comparable with the more traditional programming languages by means of sophisticated optimization and implementation of the design of a new class of languages, the concurrent logic lanuages.Many recent advances in the theory of logic programs are related to extension of the basic positive logic language and the related semantic problems. The original non-monotonic negation-as-failure rle has been extended in various ways and provided with new declarative characterizations. Other new language constructs are constrainsts (which lead to a very important extension of the paradignm which allows us to compute on new domains), concurrency, and modules and objects.This volume, written by a team of international experts, goes beyond the classical theory to discuss the many recent advances for the first time in a systematic form.

This volume consists of some of the papers that were delivered during the workshop on "Foundations of Logic and Functional Programming" held in Trento, Italy, from December 15th to 19th, 1986. The meeting centered on themes and trends in Functional Programming and in Logic Programming. This book contains five papers contributed by the invited speakers and five selected contributions.

This volume contains the proceedings of the 5th International Conference on Veri?cation, Model Checking, and Abstract Interpretation (VMCAI 2004), held inVenice,January11-13,2004,inconjunctionwithPOPL2004,the31stAnnual SymposiumonPrinciplesofProgrammingLanguages,January14-16,2004.The purposeofVMCAIistoprovideaforumforresearchersfromthreecommunities- veri?cation, model checking, and abstract interpretation-which will facilitate interaction, cross-fertilization, and the advance of hybrid methods that combine thethreeareas.Withthegrowingneedforformaltoolstoreasonaboutcomplex, in?nite-state, and embedded systems, such hybrid methods are bound to be of great importance. Topics covered by VMCAI include program veri?cation, static analysis te- niques, model checking, program certi?cation, type systems, abstract domains, debugging techniques, compiler optimization, embedded systems, and formal analysis of security protocols. This year's meeting follows the four previous events in Port Je?erson (1997), Pisa (1998), Venice (2002), LNCS 2294 and New York (2003), LNCS 2575.In particular, we thank VMCAI 2003's sponsor, the Courant Institute at New York University, for allowing us to apply a monetary surplus from the 2003 meeting to this one. The program committee selected 22 papers out of 68 on the basis of three - views.Theprincipalcriteriawererelevanceandquality.TheprogramofVMCAI 2004 included, in addition to the research papers, - a keynote speech by David Harel (Weizmann Institute, Israel) onAGrand Challenge for Computing: Full Reactive Modeling of a Multicellular Animal, - aninvitedtalkbyDawsonEngler(StanfordUniversity,USA)onStaticAn- ysis Versus Software Model Checking for Bug Finding, - an invited talk by Mooly Sagiv (Tel Aviv University, Israel) called On the Expressive Power of Canonical Abstraction,and -atutorialbyJoshuaD.Guttman(Mitre,USA)on Security, Protocols, and Trust. We would like to thank the Program Committee members and the reviewers, without whose dedicated e?ort the conference would not have been possible.

This volume contains the proceedings of the ThirdInternational Conference on Algebraic and Logic Programming,held in Pisa, Italy, September 2-4, 1992. Like the twoprevious conferences in Germany in 1988 and France in 1990,the third conference aims at strengthening the connectionsbetweenalgebraic techniques and logic programming. On theone hand, logic programming has been very successful duringthe last decades and more and more systems compete inenhancing its expressive power. On the other hand, conceptslike functions, equality theory, and modularity areparticularly well handled in an algebraic framework. Commonfoundations of both approaches have recently been developed,and this conference is a forum for people from both areas toexchange ideas, results, and experiences. The book coversthe following topics: semantics ofalgebraic and logicprogramming; integration of functional and logicprogramming; term rewriting, narrowing, and resolution;constraintlogic programming and theorem proving; concurrentfeatures in algebraic and logic programming languages; andimplementation issues.

This volume constitutes the proceedings of the Fourth International Conference on Algebraic and Logic Programming (ALP '94), held in Madrid, Spain in September 1994.Like the predecessor conferences in this series, ALP '94 succeeded in strengthening the cross-fertilization between algebraic techniques and logic programming. Besides abstracts of three invited talks, the volume contains 17 full revised papers selected from 41 submissions; the papers are organized into sections on theorem proving, narrowing, logic programming, term rewriting, and higher-order programming.