@book{Zese17-SSW-BK, author = {Riccardo Zese}, title = {Probabilistic Semantic Web}, series = {Studies on the Semantic Web}, volume = {28}, publisher = {{IOS} Press}, year = {2017}, url = {http://ebooks.iospress.nl/volume/probabilistic-semantic-web-reasoning-and-learning}, isbn = {978-1-61499-733-7 (print) - 978-1-61499-734-4 (online)}, doi = {10.3233/978-1-61499-734-4-i} }
@article{RigCotBel17-IJAR-IJ, author = {Fabrizio Riguzzi and Giuseppe Cota and Elena Bellodi and Riccardo Zese }, title = {Causal Inference in {cplint}}, journal = {International Journal of Approximate Reasoning}, year = {2017}, publisher = {Elsevier}, address = {Amsterdam}, copyright = {Elsevier}, doi = {10.1016/j.ijar.2017.09.007}, pdf = {http://ml.unife.it/wp-content/uploads/Papers/RigCotBel-IJAR17.pdf}, abstract = { cplint is a suite of programs for reasoning and learning with Probabilistic Logic Programming languages that follow the distribution semantics. In this paper we describe how we have extended cplint to perform causal reasoning. In particular, we consider Pearl's do calculus for models where all the variables are measured. The two cplint modules for inference, PITA and MCINTYRE, have been extended for computing the effect of actions/interventions on these models. We also executed experiments comparing exact and approximate inference with conditional and causal queries, showing that causal inference is often cheaper than conditional inference. }, keywords = { Probabilistic Logic Programming, Distribution Semantics, Logic Programs with Annotated Disjunctions, ProbLog, Causal Inference, Statistical Relational Artificial Intelligence }, volume = {91}, pages = {216-232}, month = {December}, number = {Supplement C}, issn = {0888-613X}, scopus = {2-s2.0-84992199737}, wos = {WOS:000391080100020} }
@inproceedings{AlbLamRig17-CILC-NC, author = {Marco Alberti and Evelina Lamma and Fabrizio Riguzzi and Riccardo Zese}, title = {Iterated Fixpoint Well-founded Semantics for Hybrid Knowledge Bases}, booktitle = {Joint Proceedings of the 18th Italian Conference on Theoretical Computer Science and the 32nd Italian Conference on Computational Logic}, eventdate = {26-28 September 2017}, venue = {Naples, Italy}, editor = {{Dario Della Monica} and Aniello Murano and Sasha Rubin and Luigi Sauro}, year = {2017}, series = {CEUR Workshop Proceedings}, address = {Aachen, Germany}, issn = {1613-0073}, publisher = {Sun {SITE} Central Europe}, pages = {248-261}, pdf = {http://ceur-ws.org/Vol-1949/CILCpaper01.pdf}, volume = 1949, abstract = { MKNF-based Hybrid Knowledge Bases (HKBs) integrate Logic Programming (LP) and Description Logics (DLs) offering the combined expressiveness of the two formalisms. In particular, HKB allow to make different closure assumptions for different predicates. HKBs have been given a well-founded semantics in terms of an alternate fixpoint. In this paper we provide an alternative definition of the semantics using an iterated fixpoint. In this way the computation of the well-founded model proceeds uniformly bottom-up, making the semantics easier to understand, to reason with and to automate. We also present slightly different but equivalent versions of our definition. We then discuss the relationships of HKBs with other formalisms. The results show that overall HKBs seem to be those that more tightly integrate LP and DL, even if there exist incomparable languages such as the recent FO(ID) formalism.}, keywords = {Hybrid Knowledge Bases, MKNF, Well-foudned semantics, Description Logics} }
@inproceedings{AlbLamRig17-PLP-IW, author = {Marco Alberti and Evelina Lamma and Fabrizio Riguzzi and Riccardo Zese}, title = {A Distribution Semantics for non-{DL}-Safe Probabilistic Hybrid Knowledge Bases}, booktitle = {4th International Workshop on Probabilistic logic programming, PLP 2017}, editor = {Christian {Theil Have} and Riccardo Zese}, year = {2017}, pdf = {http://ceur-ws.org/Vol-1916/paper4.pdf}, volume = 1916, series = {CEUR Workshop Proceedings}, address = {Aachen, Germany}, issn = {1613-0073}, publisher = {Sun {SITE} Central Europe}, pages = {40-50}, scopus = {2-s2.0-85030093850}, abstract = {Logic Programming languages and Description Logics are based on different domain closure assumptions, closed and the open world assumption, respectively. Since many domains require both these assumptions, the combination of LP and DL have become of foremost importance. An especially successful approach is based on Minimal Knowledge with Negation as Failure (MKNF), whose semantics is used to define Hybrid KBs, composed of logic programming rules and description logic axioms. Following such idea, we have proposed an approach for defining DL-safe Probabilistic Hybrid Knowledge Bases, where each disjunct in the head of LP clauses and each DL axiom is annotated with a probability value, following the well known distribution semantics. In this paper, we show that this semantics can be unintuitive for non-DL-safe PHKBs, and we propose a new semantics that coincides with the previous one if the PHKB is DL-safe.}, keywords = {Hybrid Knowledge Bases, MKNF, Distribution Semantics} }
@proceedings{PLP2017-EB, editor = {Riccardo Zese and Christian Theil Have}, title = {Proceedings of the Workshop on Probabilistic Logic Programming 2017 co-located with 27th International Conference on Inductive Logic Programming {(ILP} 2017), Orl{\'{e}}ans, France, September 7, 2017}, series = {{CEUR} Workshop Proceedings}, volume = {1916}, publisher = {CEUR-WS.org}, year = {2017}, url = {http://ceur-ws.org/Vol-1916} }
@inproceedings{AlbGavLam17-RR-IC, author = {Alberti, Marco and Gavanelli, Marco and Lamma, Evelina and Riguzzi, Fabrizio and Riccardo, Zese}, editor = {Costantini, Stefania and Franconi, Enrico and Van Woensel, William and Kontchakov, Roman and Sadri, Fariba and Roman, Dumitru}, title = {Dischargeable Obligations in Abductive Logic Programming}, booktitle = {Rules and Reasoning: International Joint Conference, RuleML+RR 2017, London, UK, July 12--15, 2017, Proceedings}, year = {2017}, publisher = {Springer International Publishing}, copyright = {Springer International Publishing AG}, series = {Lecture Notes in Computer Science}, volume = {10364}, address = {Cham}, isbn-print = {978-3-319-61251-5}, isbn-online = {978-3-319-61252-2}, doi = {10.1007/978-3-319-61252-2_2}, pdf = {http://ml.unife.it/wp-content/uploads/Papers/AlbGavLam-RR17.pdf}, pages = {7--21}, abstract = { Abductive Logic Programming (ALP) has been proven very effective for formalizing societies of agents, commitments and norms, in particular by mapping the most common deontic operators (obligation, prohibition, permission) to abductive expectations. In our previous works, we have shown that ALP is a suitable framework for representing norms. Normative reasoning and query answering were accommodated by the same abductive proof procedure, named SCIFF. In this work, we introduce a defeasible flavour in this framework, in order to possibly discharge obligations in some scenarios. Abductive expectations can also be qualified as dischargeable, in the new, extended syntax. Both declarative and operational semantics are improved accordingly, and proof of soundness is given under syntax allowedness conditions. The expressiveness and power of the extended framework, named SCIFFD, is shown by modeling and reasoning upon a fragment of the Japanese Civil Code. In particular, we consider a case study concerning manifestations of intention and their rescission (Section II of the Japanese Civil Code).}, keywords = {Abduction, Abductive Logic Programming, Legal Reasoning, Normative Reasoning}, note = {The final publication is available at Springer via \url{http://dx.doi.org/10.1007/978-3-319-61252-2_2}} }
@inproceedings{Zes17-RR-IC, author = {Riccardo Zese}, editor = {Nick Bassiliades and Antonis Bikakis and Stefania Costantini and Enrico Franconi and Adrian Giurca and Roman Kontchakov and Theodore Patkos and Fariba Sadri and William Van Woensel}, title = {Probabilistic description logics: Reasoning and learning}, booktitle = {Proceedings of the Doctoral Consortium, Challenge, Industry Track, Tutorials and Posters @ RuleML+RR 2017 hosted by International Joint Conference on Rules and Reasoning 2017 (RuleML+RR 2017), London, UK, July 11-15, 2017.}, series = {{CEUR} Workshop Proceedings}, volume = {1875}, publisher = {CEUR-WS.org}, year = {2017}, url = {http://ceur-ws.org/Vol-1875/paper19.pdf} }
@incollection{RigZesCot17-EKAW-IC, title = {Probabilistic Inductive Logic Programming on the Web}, author = {Fabrizio Riguzzi and Riccardo Zese and Giuseppe Cota}, booktitle = {20th International Conference on Knowledge Engineering and Knowledge Management, {EKAW} 2016; Bologna; Italy; 19 November 2016 through 23 November 2016}, year = {2017}, publisher = {Springer}, address = {Cham}, series = {Lecture Notes in Computer Science}, volume = {10180}, pdf = {http://ml.unife.it/wp-content/uploads/Papers/RigZesCot-EKAW16.pdf}, isbn-online = {978-3-319-58694-6}, isbn-print = {978-3-319-58693-9}, pages = {172--175}, scopus = {2-s2.0-85019730114}, doi = {10.1007/978-3-319-58694-6_25}, abstract = {Probabilistic Inductive Logic Programming (PILP) is gaining attention for its capability of modeling complex domains containing uncertain relationships among entities. Among PILP systems, \texttt{cplint} provides inference and learning algorithms competitive with the state of the art. Besides parameter learning, \texttt{cplint} provides one of the few structure learning algorithms for PLP, SLIPCOVER. Moreover, an online version was recently developed, \texttt{cplint} on SWISH, that allows users to experiment with the system using just a web browser. In this demo we illustrate \texttt{cplint} on SWISH concentrating on structure learning with SLIPCOVER. \texttt{cplint} on SWISH also includes many examples and a step-by-step tutorial.}, keywords = {Probabilistic Inductive Logic Programming, Probabilistic Logic Programming, Inductive Logic Programming}, copyright = {Springer International Publishing AG}, note = {The final publication is available at Springer via \url{http://dx.doi.org/10.1007/978-3-319-58694-6_25}}, venue = {Bologna, Italy}, eventdate = {November 19-November 23, 2016} }
@inproceedings{RigLamAlb17-URANIA-IW, title = {Probabilistic Logic Programming for Natural Language Processing }, author = {Fabrizio Riguzzi and Evelina Lamma and Marco Alberti and Elena Bellodi and Riccardo Zese and Giuseppe Cota}, pages = {30--37}, url = {http://ceur-ws.org/Vol-1802/}, pdf = {http://ceur-ws.org/Vol-1802/paper4.pdf}, booktitle = {{URANIA} 2016, Deep Understanding and Reasoning: A Challenge for Next-generation Intelligent Agents, Proceedings of the {AI*IA} Workshop on Deep Understanding and Reasoning: A Challenge for Next-generation Intelligent Agents 2016 co-located with 15th International Conference of the Italian Association for Artificial Intelligence ({AIxIA} 2016)}, year = 2017, editor = {Federico Chesani and Paola Mello and Michela Milano}, volume = 1802, series = {CEUR Workshop Proceedings}, address = {Aachen, Germany}, issn = {1613-0073}, venue = {Genova, Italy}, eventdate = {2016-11-28}, publisher = {Sun {SITE} Central Europe}, copyright = {by the authors}, abstract = {The ambition of Artificial Intelligence is to solve problems without human intervention. Often the problem description is given in human (natural) language. Therefore it is crucial to find an automatic way to understand a text written by a human. The research field concerned with the interactions between computers and natural languages is known under the name of Natural Language Processing (NLP), one of the most studied fields of Artificial Intelligence. In this paper we show that Probabilistic Logic Programming (PLP) is a suitable approach for NLP in various scenarios. For this purpose we use \texttt{cplint} on SWISH, a web application for Probabilistic Logic Programming. \texttt{cplint} on SWISH allows users to perform inference and learning with the framework \texttt{cplint} using just a web browser, with the computation performed on the server.}, keywords = {Probabilistic Logic Programming, Probabilistic Logical Inference, Natural Language Processing}, scopus = {2-s2.0-85015943369} }
@article{AlbBelCot17-IA-IJ, author = {Marco Alberti and Elena Bellodi and Giuseppe Cota and Fabrizio Riguzzi and Riccardo Zese}, title = {\texttt{cplint} on {SWISH}: Probabilistic Logical Inference with a Web Browser}, journal = {Intelligenza Artificiale}, publisher = {IOS Press}, copyright = {IOS Press}, year = {2017}, issn-print = {1724-8035}, issn-online = {2211-0097}, url = {http://ml.unife.it/wp-content/uploads/Papers/AlbBelCot-IA17.pdf}, abstract = { \texttt{cplint} on SWISH is a web application that allows users to perform reasoning tasks on probabilistic logic programs. Both inference and learning systems can be performed: conditional probabilities with exact, rejection sampling and Metropolis-Hasting methods. Moreover, the system now allows hybrid programs, i.e., programs where some of the random variables are continuous. To perform inference on such programs likelihood weighting and particle filtering are used. \texttt{cplint} on SWISH is also able to sample goals' arguments and to graph the results. This paper reports on advances and new features of \texttt{cplint} on SWISH, including the capability of drawing the binary decision diagrams created during the inference processes. }, keywords = { Logic Programming, Probabilistic Logic Programming, Distribution Semantics, Logic Programs with Annotated Disjunctions, Web Applications }, volume = {11}, number = {1}, doi = {10.3233/IA-170106}, pages = {47--64}, wos = {WOS:000399736500004} }
@article{BelLamRig17-SPE-IJ, author = {Elena Bellodi and Evelina Lamma and Fabrizio Riguzzi and Riccardo Zese and Giuseppe Cota}, title = {A web system for reasoning with probabilistic {OWL}}, journal = {Software: Practice and Experience}, publisher = {Wiley}, copyright = {Wiley}, year = {2017}, doi = {10.1002/spe.2410}, issn = {1097-024X}, month = {January}, pages = {125--142}, volume = {47}, number = {1}, scopus = {2-s2.0-84992412060}, url = {http://ml.unife.it/wp-content/uploads/Papers/BelLamRig-SPE16.pdf}, abstract = { We present the web application TRILL on SWISH, which allows the user to write probabilistic Description Logic (DL) theories and compute the probability of queries with just a web browser. Various probabilistic extensions of DLs have been proposed in the recent past, since uncertainty is a fundamental component of the Semantic Web. We consider probabilistic DL theories following our DISPONTE semantics. Axioms of a DISPONTE Knowledge Base (KB) can be annotated with a probability and the probability of queries can be computed with inference algorithms. TRILL is a probabilistic reasoner for DISPONTE KBs that is implemented in Prolog and exploits its backtracking facilities for handling the non-determinism of the tableau algorithm. TRILL on SWISH is based on SWISH, a recently proposed web framework for logic programming, based on various features and packages of SWI-Prolog (e.g., a web server and a library for creating remote Prolog engines and posing queries to them). TRILL on SWISH also allows users to cooperate in writing a probabilistic DL theory. It is free, open, and accessible on the Web at the url: \trillurl; it includes a number of examples that cover a wide range of domains and provide interesting Probabilistic Semantic Web applications. By building a web-based system, we allow users to experiment with Probabilistic DLs without the need to install a complex software stack. In this way we aim to reach out to a wider audience and popularize the Probabilistic Semantic Web. }, keywords = { Semantic Web, Web Applications, Description Logics, Probabilistic Description Logics, SWI-Prolog, Logic Programming } }
@article{RigBelZes17-IJAR-IJ, author = {Fabrizio Riguzzi and Elena Bellodi and Riccardo Zese and Giuseppe Cota and Evelina Lamma }, title = {A Survey of Lifted Inference Approaches for Probabilistic Logic Programming under the Distribution Semantics}, journal = {International Journal of Approximate Reasoning}, year = {2017}, publisher = {Elsevier}, address = {Amsterdam}, copyright = {Elsevier}, doi = {10.1016/j.ijar.2016.10.002}, url = {http://ml.unife.it/wp-content/uploads/Papers/RigBelZes-IJAR17.pdf}, volume = {80}, number = {Supplement C}, issn = {0888-613X}, pages = {313--333}, month = {January}, abstract = { Lifted inference aims at answering queries from statistical relational models by reasoning on populations of individuals as a whole instead of considering each individual singularly. Since the initial proposal by David Poole in 2003, many lifted inference techniques have appeared, by lifting different algorithms or using approximation involving different kinds of models, including parfactor graphs and Markov Logic Networks. Very recently lifted inference was applied to Probabilistic Logic Programming (PLP) under the distribution semantics, with proposals such as LP2 and Weighted First-Order Model Counting (WFOMC). Moreover, techniques for dealing with aggregation parfactors can be directly applied to PLP. In this paper we survey these approaches and present an experimental comparison on five models. The results show that WFOMC outperforms the other approaches, being able to exploit more symmetries. }, keywords = {Probabilistic Logic Programming, Lifted Inference, Variable Elimination, Distribution Semantics, ProbLog, Statistical Relational Artificial Intelligence }, scopus = {2-s2.0-84992199737}, wos = {WOS:000391080100020} }
@inproceedings{GavLamRig17-JURISIN-IC, author = {Gavanelli, Marco and Lamma, Evelina and Riguzzi, Fabrizio and Bellodi, Elena and Riccardo, Zese and Cota, Giuseppe}, editor = {Otake, Mihoko and Kurahashi, Setsuya and Ota, Yuiko and Satoh, Ken and Bekki, Daisuke}, title = {Abductive Logic Programming for Normative Reasoning and Ontologies}, booktitle = {New Frontiers in Artificial Intelligence: JSAI-isAI 2015 Workshops, LENLS, JURISIN, AAA, HAT-MASH, TSDAA, ASD-HR, and SKL, Kanagawa, Japan, November 16-18, 2015, Revised Selected Papers}, year = {2017}, publisher = {Springer International Publishing}, copyright = {Springer International Publishing AG}, series = {Lecture Notes in Computer Science}, volume = {10091}, address = {Cham}, pages = {187--203}, isbn-online = {978-3-319-50953-2}, isbn-print = {978-3-319-50952-5}, doi = {10.1007/978-3-319-50953-2_14}, scopus = {2-s2.0-85018397999} }
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