1,721,079 research outputs found
Guest-editorial: 25 years of AI*IA
No full textThis issues reviews the recent work of the italian community in Artificial Intelligenc
Proceedings 36th International Conference on Logic Programming (Technical Communications)
No full textThis volume contains the Technical Communications and the Doctoral Consortium papers of the 36th International Conference on Logic Programming (ICLP 2020), held virtually in Rende (CS), Italy, from September 20th to 25th, 2020. This is the first time that ICLP is run remotely together with all co-located events due to the COVID pandemic
Declarative and Mathematical Programming approaches to Decision Support Systems for food recycling
Full text linkEvery year about one third of the food production intended for humans gets lost or wasted. This wastefulness of resources leads to the emission of unnecessary greenhouse gas, contributing to global warming and climate change.
The solution proposed by the SORT project is to “recycle” the surplus of food by reconditioning it into animal feed or fuel for biogas/biomass power plants. In order to maximize the earnings and minimize the costs, several choices must be made during the reconditioning process. Given the extremely complex nature of the process, Decision Support Systems (DSSs) could be helpful to reduce the human effort in decision making.
In this paper, we present a DSS for food recycling developed using two approaches for finding the optimal solution: one based on Binary Linear Programming (BLP) and the other based on Answer Set Programming (ASP), which outperform our previous approach based on Constraint Logic Programming (CLP) on Finite Domains (CLP(FD)).
In particular, the BLP and the CLP(FD) approaches are developed in ECLPS, a Prolog system that interfaces with various state-of-the-art Mathematical and Constraint Programming solvers. The ASP approach, instead, is developed in clingo. The three approaches are compared on several synthetic datasets that simulate the operative conditions of the DSS
AI*IA 2015 Advances in Artificial Intelligence
No full textThis book collects the contributions accepted for AI*IA 2015, the 14th Conference
of the Italian Association for Artificial Intelligence, held in Ferrara, Italy, September
23–25, 2015. The conference is organized by AI*IA (the Italian Association for
Artificial Intelligence) and it is held every other year.
The Program Committee (PC) received 44 valid submissions. Each paper was
carefully reviewed by at least three members of the PC, who selected the 35 papers that
are presented in these proceedings.
Following the 2013 edition of the conference, we adopted a “social” model: the
papers were made available to conference participants in advance, each paper was
shortly presented at the conference and was assigned a time slot and a reserved table
where the authors were available for discussing their work with the interested audience.
In this way, we aim at fostering discussion and facilitating idea exchange, community
creation, and collaboration.
AI*IA 2015 featured exciting keynotes by Laurent Perron, Technical Leader of the
Operations Research Team at Google; Kristian Kersting, Head of the Statistical
Relational Activity Mining Group, Fraunhofer IAIS, Technical University of Dort-
mund; Oren Etzioni, Director of the Allen Institute for Artificial Intelligence; and
Kevin Warwick, Deputy Vice Chancellor (Research) at Coventry University.
The program of the conference also included six workshops: the First Workshop on
Artificial Intelligence and Design (AIDE 2015), the Second Workshop on Artificial
Intelligence and Robotics (AIRO 2015), the Sixth Italian Workshop on Planning and
Scheduling (IPS 2015), the First Workshop on Intelligent Techniques at Libraries and
Archives (IT@LIA 2015), the Fourth Italian Workshop on Machine Learning and Data
Mining (MLDM.it 2015), and the 22nd RCRA International Workshop on Experimental
Evaluation of Algorithms for Solving Problems with Combinatorial Explosion (RCRA
2015), plus a doctoral consortium.
The chairs wish to thank the Program Committee members and the anonymous
reviewers for their careful work in the selection of the best papers; the chairs of the
workshops and of the doctoral consortium for organizing the respective events, as well
as Elena Bellodi, Giuseppe Cota, Andrea Peano, and Riccardo Zese for their help
during the organization of the conference
Special Issue on the Italian Conference on Computational Logic: CILC 2009
No full textThis special issue of
Fundamenta Informaticae
contains the revised, extended versions of selected
papers presented at the Italian Conference on Computational Logic (Convegno Italiano di Logica Com-
putazionale, CILC’09) which was held at the Engineering Department of the University of Ferrara, Italy.
This conference was the twenty-fourth edition of the Italian national congress of the GULP Associ-
ation (Gruppo Ricercatori e Utenti di Logic Programming) which gathers researchers and users of Logic
Programming. Since the first edition in Genoa in 1986, the GULP Association organizes every year a
scientific meeting to present ideas, tools, and new advances in Computational Logic and related areas,
such as Artificial Intelligence and Deductive Databases. All these areas had a very significant growth
over the last decades and nowadays they all play a crucial role in the fields of Information Processing
and Computer Science.
The CILC’09 meeting was attended by more than fifty people and 28 papers were presented. Out of
those papers, 13 papers were selected and their authors were invited to submit an improved version for
publication in this special issue. After two rounds of careful reviews, where each article was assigned to
at least three reviewers, we finally chose 8 papers which now appear in this present issu
A Decision Support System for Food Recycling based on Constraint Logic Programming and Ontological Reasoning
No full textIn 2011, FAO estimated that about one third of the total production of edible food for human consumption, gets lost or wasted,globally. In industrialized countries, more than 40% of the food losses occur at retail and consumer levels. A considerable part of the wasted food can be reused. The SORT project aims at "recycling" food in excess by converting it into animal feed or fuel for biogas/biomass power plants.During this process of reconditioning it is necessary to make choices in order to minimize the costs and maximize the earnings. However, due to the extremely complex nature of the process, it is not possible for a human being to make these choices at run time and in an optimal manner.In these cases, Decision Support Systems (DSS) can be of help.In this paper we propose a DSS based on the Constraint Logic Programming (CLP) paradigm and ontology reasoning for finding the optimal solution. The information about feed processing and feed categories were extracted from Regulation (EU) 2017/1017 and stored into an ontology. Finally, we provide an evaluation of our system on several synthetic datasets with different search settings
A Kinetic Study of Opinion Dynamics in Multi-agent Systems
No full textIn this paper we rephrase the problem of opinion formation from a physical viewpoint. We consider a multi-agent system where each agent is associated with an opinion and interacts with any other agent. Interpreting the agents as the molecules of a gas, we model the opinion evolution according to a kinetic model based on the analysis of interactions among agents. From a microscopic description of each interaction between pairs of agents, we derive the stationary profiles under given assumption. Results show that, depending on the average opinion and on the model parameters, different profiles can be found, with different properties. Each stationary profile is characterized by the presence of one or two maxima
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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