@inproceedings{AlbGavLam09-CEUR-NW, author = {Marco Alberti and Marco Gavanelli and Evelina Lamma and Fabrizio Riguzzi and Sergio Storari }, editor = {Matteo Baldoni and Cristina Baroglio}, booktitle = {Il Milione (i.e. $2^6$, June 3rd 2008) A Journey in the Computational Logic in Italy, Proceedings of the Day Dedicated to Prof. {Alberto Martelli} Turin, Italy, June 3, 2008}, title = {Inducing Specification of Interaction Protocols and Business Processes and Proving their Properties}, year = {2009}, abstract = {In this paper, we overview our recent research activity concerning the induction of Logic Programming specifications, and the proof of their properties via Abductive Logic Programming. Both the inductive and abductive tools here briefly described have been applied to respectively learn and verify (properties of) interaction protocols in multi-agent systems, Web service choreographies, careflows and business processes.}, pdf = {http://ceur-ws.org/Vol-487/paper6.pdf}, series = {CEUR Workshop Proceedings}, publisher = {Sun {SITE} Central Europe}, issn = {1613-0073}, volume = {487}, pages = {32-37}, address = {Aachen, \Germany}, keywords = {Business Process Management, Logic Programming} }
@incollection{TorCheMel09-OMAS-BC, author = {Paolo Torroni and Federico Chesani and Paola Mello and Pinar Yolum and Munindar P. Singh and Marco Alberti and Marco Gavanelli and Evelina Lamma}, title = {Modeling Interactions via Commitments and Expectations}, year = {2009}, publisher = {Information Science Reference}, editor = {Virginia Dignum}, booktitle = {Handbook of Research on Multi-Agent Systems: Semantics and Dynamics of Organizational Models}, month = {March}, pages = {263--284}, url = {http://www.igi-global.com/reference/details.asp?ID=33141}, abstract = {Organizational models often rely on two assumptions: openness and heterogeneity. This is, for instance, the case with organizations consisting of individuals whose behaviour is unpredictable, whose internal structure is unknown, and who do not necessarily share common goals, desires, or intentions. This fact has motivated the adoption of social-based approaches to modelling interaction in organizational models. The idea of social semantics is to abstract away from the agent internals and provide a social meaning to agent message exchanges. In this chapter, we present and discuss two declarative, social models interaction in terms of commitments. The second one adopts a rule-oriented perspective, and models interaction in terms of logical formulae expressing expectations about agent interaction. We use a simple interaction protocol taken from the e-commerce domain to present the functioning and features of the commitment- and expectation-based approaches, and to discuss various forms of reasoning and verification that they accommodate, and how organizational modelling can benefit from them}, isbn = { 978-1-60566-256-5}, keywords = {Social commitments, Social expectations, Interaction protocols, Open agent societies, Semantics of interaction} }
@inproceedings{AlbCatGav09-ICWS-IC, author = {Marco Alberti and Massimiliano Cattafi and Marco Gavanelli and Evelina Lamma and Federico Chesani and Marco Montali and Paola Mello and Paolo Torroni}, title = {Integrating Abductive Logic Programming and Description Logics in a Dynamic Contracting Architecture}, year = 2009, editor = {Paul Hofmann}, booktitle = {ICWS 2009: 2009 IEEE International Conference on Web Services}, accept_rate = {15.6\%}, abstract = {In Semantic Web technologies, searching for a service means to identify components that can potentially satisfy the user needs in terms of outputs and effects (discovery), and that, when invoked by the customer, can fruitfully interact with her (contracting). In this paper, we present an application framework that encompasses both the discovery and the contracting steps, in a unified search process. In particular, we accommodate service discovery by ontology-based reasoning, and contracting by reasoning about policies published in a formal language. To this purpose, we consider a formal approach grounded on Computational Logic, and Abductive Logic Programming in particular. We propose a framework, called SCIFF Reasoning Engine, able to establish, by ontological and abductive reasoning, if a semantic web service and a requester can fruitfully inter-operate, taking as input the behavioural interfaces of both the participants, and producing as output a sort of a contract.}, url = {http://conferences.computer.org/icws/2009/}, publisher = {IEEE Computer Society Press}, pages = {254--261}, doi = {10.1109/ICWS.2009.78}, organization = {IEEE Computer Society}, isbn = {978-0-7695-3709-2} }
@inproceedings{GavAlbLam09-ICLP-IC, author = {Marco Gavanelli and Marco Alberti and Evelina Lamma}, title = {Integration of abductive reasoning and constraint optimization in {SCIFF}}, year = 2009, editor = {Patricia M. Hill and David S. Warren}, series = {Lecture Notes in Computer Science}, volume = 5649, pages = {387--401}, booktitle = {25th International Conference on Logic Programming (ICLP 2009)}, abstract = {Abductive Logic Programming (ALP) and Constraint Logic Programming (CLP) share the feature to constrain the set of possible solutions to a program via integrity or CLP constraints. These two frameworks have been merged in works by various authors, which developed efficient abductive proof-procedures empowered with constraint satisfaction techniques. However, while almost all CLP languages provide algorithms for finding an optimal solution with respect to some objective function (and not just {\em any} solution), the issue has received little attention in ALP. In this paper we show how optimisation meta-predicates can be included in abductive proof-pro\-ce\-dures, achieving in this way a significant improvement to research and practical applications of abductive reasoning. In the paper, we give the declarative and operational semantics of an abductive proof-procedure that encloses constraint optimization meta-predicates, and we prove soundness in the three-valued completion semantics. In the proof-procedure, the abductive logic program can invoke optimisation meta-predicates, which can invoke abductive predicates, in a recursive way.}, keywords = {Abductive Logic Programming, Constraint Logic Programming, Constraint Optimization, Constraint Handling Rules}, url = {http://www.ist.unomaha.edu/iclp2009/}, publisher = {Springer-Verlag}, address = {Berlin Heidelberg}, issn = {0302-9743}, isbn = {978-3-642-02845-8} }
@inproceedings{AlbCatGav09-CILC-NW, author = {Marco Alberti and Massimiliano Cattafi and Marco Gavanelli and Evelina Lamma}, title = {Exploiting Semantic Technology in Computational Logic-based Service Contracting}, abstract = {Dynamic composition of web services requires an automated step of contracting, i.e., the computation of a possibly fruitful interaction between two (or more) services, based on their policies and goals. In previous work, the SCIFF abductive logic language was used to represent the services' policies, and the associated proof procedure to perform the contracting. In this paper, we build on that work in order to exploit the results of the Description Logics research area to represent domain specific knowledge, either by importing the knowledge encoded in an ontology into a SCIFF knowledge base, or by interfacing the SCIFF proof procedure to an existing ontological reasoner.}, booktitle = {CILC09: 24-esimo Convegno Italiano di Logica Computazionale}, editor = {Marco Gavanelli and Fabrizio Riguzzi}, year = {2009}, month = jun, address = {Ferrara, Italy}, organization = {GULP}, pdf = {http://www.ing.unife.it/eventi/cilc09/papers/cilc09_submission_15.pdf} }
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