1.

Record Nr.

UNINA9910143624003321

Titolo

Logic Programming and Nonmonotonic Reasoning : 6th International Conference, LPNMR 2001, Vienna, Austria, September 17-19, 2001. Proceedings / / edited by Thomas Eiter, Wolfgang Faber, Miroslaw Trusczynksi

Pubbl/distr/stampa

Berlin, Heidelberg : , : Springer Berlin Heidelberg : , : Imprint : Springer, , 2001

ISBN

3-540-45402-0

Edizione

[1st ed. 2001.]

Descrizione fisica

1 online resource (X, 454 p.)

Collana

Lecture Notes in Artificial Intelligence ; ; 2173

Disciplina

005.1/15

Soggetti

Software engineering

Artificial intelligence

Logic, Symbolic and mathematical

Computer programming

Software Engineering/Programming and Operating Systems

Artificial Intelligence

Mathematical Logic and Formal Languages

Programming Techniques

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di bibliografia

Includes bibliographical references at the end of each chapters and index.

Nota di contenuto

Invited Papers -- A Computational Logic Approach to Heterogenous Agent Systems -- Declarative Information Extraction, Web Crawling, and Recursive Wrapping with Lixto -- On The Complexity of Model Checking and Inference in Minimal Models -- Data Integration Needs Reasoning -- Nonmonotomic Inductive Logic Programming -- Regular Papers -- Strong Equivalence for Logic Programs and Default Theories (Made Easy) -- On the Effect of Default Negation on the Expressiveness of Disjunctive Rules -- On the Expressibility of Stable Logic Programming -- On the Relationship between Defeasible Logic and Well-Founded Semantics -- A Comparative Study of Well-Founded Semantics for Disjunctive Logic Programs -- Reasoning with Open Logic Programs -- Representation of Incomplete Knowledge by



Induction of Default Theories -- Explicity Using Default Knowledge in Concept Learning: An Extended Description Logics Plus Strict and Default Rules -- Declarative Specification and Solution of Combinatorial Auctions Using Logic Programming -- Bounded LTL Model Checking with Stable Models -- Diagnosing Physical Systems in A-Prolog -- Planning with Different Forms of Domain-Dependent Control Knowledge — An Answer Set Programming Approach -- Encoding Solutions of the Frame Problem in Dynamic Logic -- ?-RES: Reasoning about Actions, Events and Observations -- Omega-Restricted Logic Programs -- Improving ASP Instantiators by Join-Ordering Methods -- Optimizing the Computation of Heuristics for Answer Set Programming Systems -- New Generation Systems for Non-monotonic Reasoning -- Algorithms for Computing X-Minimal Models -- Fixpoint Characterizations for Many-Valued Disjunctive Logic Programs with Probabilistic Semantics -- Multi-adjoint Logic Programming with Continous Semantics -- Multi-dimensional Dynamic Knowledge Representation -- Antitonic Logic Programs -- System Description -- A-system: Declarative Programming with Abduction -- An Update Front-End for Extended Logic Programs -- aspps — An Implementation of Answer-Set Programming with Propositional Schemata -- NoMoRe: A System for Non-Monotonic Reasoning under Answer Set Semantics -- plp: A Generic Compiler for Ordered Logic Programs -- Prototypes for Reasoning with Infinite Stable Models and Function Symbols -- psmodels: Stable Models Based on Pertinence -- System Description: DLV -- System Description: The DLVK Planning System -- The Smodels System -- The USA-Advisor: A Case Study in Answer Set Planning.

Sommario/riassunto

ThesearetheproceedingsoftheSixthInternationalConferenceonLogicP- grammingandNonmonotonicReasoning (LPNMR2001). The conference was heldinViennafrom17thto19thofSeptember,2001. Itwascollocatedwiththe JointGerman/AustrianConferenceonArti'cialIntelligence(24thGerman/9th AustrianConferenceonArti'cialIntelligence),KI2001. LPNMR conferences aim to promote research in logic-based programming languages, database systems, nonmonotonic reasoning, and knowledge rep- sentation. LPNMR2001 was the sixth conference in the series. The previous meetingswereheldinWashington,DC,in1991,inLisbon,Portugal,in1993,in Lexington,Kentucky,in1995,inDagstuhl,Germany,in1997,andinElPaso, Texas,in1999. ThetechnicalprogramofLPNMR2001wascomprisedof'veinvitedtalks thatweregivenbyJur ¨ genDix,GeorgGottlob,PhokionKolaitis,MaurizioLe- erini,andChiakiSakama. Italsocontained23technicalpresentationsselected bytheprogramcommitteeduringarigorousreviewprocess. Finally,asapart ofthetechnicalprogram,theconferencefeaturedaspecialsessioncomprisedof ninepresentationsanddemonstrationsofimplementednonmonotonicreasoning systems. Allthesecontributionsareincludedintheproceedings. Many individuals workedfor the success of the conference. Special thanks areduetoallmembersoftheprogramcommitteeandtoadditionalreviewers fortheire'ortstoproducefairandthoroughevaluationsofsubmittedpapers. Furthermore, we would like to thank the members of the Knowledge Based SystemsGroupoftheViennaUniversityofTechnology,whichtookcareofthe localorganization. Weparticularlyappreciatedthenevertiringe'ortofElfriede Nedoma,secretarytothegroup. WewouldalsoliketothankGerdBrewkafor hissupportiveroleinarrangingthecollocationoftheconferencewithKI2001. Last,butnotleast,wethankthesponsoringinstitutionsfortheirgenerosity.



September2001 ThomasEiter WolfgangFaber Miros lawTruszczynski ´ Conference Organization ProgramCo-chairs ThomasEiter(ViennaUniversityofTechnology,Austria) Miros lawTruszczynski ´ (UniversityofKentucky,USA) ProgramCommittee AlexanderBochman(HolonAcademicInstituteofTechnology,Israel) PieroBonatti(Universit` adegliStudiMilano/Crema,Italy) GerhardBrewka(UniversityofLeipzig,Germany) JamesDelgrande(SimonFraserUniversity,Canada) MarcDenecker(KatholiekeUniversiteitLeuven,Belgium) NormanFoo(UniversityofNewSouthWales,Australia) MichaelGelfond(TexasTechUniversity,USA) KatsumiInoue(KobeUniversity,Japan) AntonisKakas(UniversityofCyprus) NicolaLeone(Universit` adegliStudidellaCalabria,Italy) VladimirLifschitz(UniversityofTexasatAustin,USA) FangzhenLin(TheHongKongUniversityofScienceandTechnology,China) VictorMarek(UniversityofKentuckyatLexington,USA) ZhangMing-Yi(GuizhouAcademyofSciences,China) IlkkaNiemel¨ a(HelsinkiUniversityofTechnology,Finland) Lu´?sMonizPereira(UniversidadeNovadeLisboa,Portugal) MarcoSchaerf(Universitad ` iRoma"LaSapienza,"Italy) TorstenSchaub(UniversityofPotsdam,Germany) FrancescaToni(ImperialCollege,London,U. K. ) Li-YanYuan(UniversityofAlberta,Canada) Publicity Chair WolfgangFaber(ViennaUniversityofTechnology,Austria) Organization VII Additional Reviewers Jos´eAlferes MehmetOrgun CristinaBaroglio MauricePagnucco KrysiaBroda VivianaPatti MauriceBruynooghe NikolayPelov FrancescoBuccafurri GeraldPfeifer CarlosDam´asio FabrizioRiguzzi EmmanuelDeMot RiccardoRosati YannisDimopoulos GiulianaSabbatini EsraErdem FaribaSadri WolfgangFaber ChiakiSakama DayaGaur FrancescoScarcello JensHappe TommiSyrj¨anen TomiJanhunen AndreaTettamanzi JoohyungLee BertVanNu'elen NicolaLeone HelmutVeith ThomasLinke GerardVreeswijk ThomasLukasiewicz KewenWang PaoloMancarella Jia-HuaiYou CristinelMateis DongmoZhang RobMiller Sponsoring Institutions We would like to acknowledge ?nancial support for the conference from the EuropeanO'ceofAerospaceResearchandDevelopment(EOARD),underc- tractF61775-01-WF077,theAustrianComputerSociety(OCG),theEuropean Commission,theAustrianMinistryofTransport,Innovation&Technology,and Microsoft. Table of Contents Invited Papers AComputationalLogicApproachtoHeterogenousAgentSystems . . . . . . . . . . 1 J¨urgenDix DeclarativeInformationExtraction,WebCrawling, andRecursiveWrappingwithLixto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 RobertBaumgartner,SergioFlesca,andGeorgGottlob OntheComplexityofModelCheckingandInference inMinimalModels(ExtendedAbstract) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 LefterisM. KirousisandPhokionG. Kolaitis DataIntegrationNeedsReasoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 MaurizioLenzerini NonmonotonicInductiveLogicProgramming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 ChiakiSakama Regular Papers StrongEquivalenceforLogicPrograms andDefaultTheories(MadeEasy). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 HudsonTurner OntheE'ectofDefaultNegationontheExpressiveness ofDisjunctiveRules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 TomiJanhunen OntheExpressibilityofStableLogicProgramming . . . . . . . . . . . . . . . . . . . . . . . 107 V. W. MarekandJ. B. Remmel OntheRelationshipbetweenDefeasibleLogic andWell-FoundedSemantics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 GerhardBrewka AComparativeStudyofWell-FoundedSemantics forDisjunctiveLogicPrograms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



. . . . . . . . . . 133 KewenWang ReasoningwithOpenLogicPrograms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 PieroA. Bonatti RepresentationofIncompleteKnowledgebyInduction ofDefaultTheories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .