Francesco Parisi

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We show how to transform UML (Uniied Modeling Language) state diagrams into graphs by making explicit the intended semantics of the diagram. The process of state expansion in nested state diagrams is explained by graph transformations in three steps: (1) adding boundary nodes introducing a precise interface for the state to be expanded, (2) expanding the(More)
The problem of extracting consistent information from relational databases violating integrity constraints on numerical data is addressed. In particular, aggregate constraints defined as linear inequalities on aggregate-sum queries on input data are considered. The notion of repair as consistent set of updates at attribute-value level is exploited, and the(More)
The problem of extracting consistent information from relational databases violating integrity constraints on numerical data is addressed. In particular, aggregate constraints defined as linear inequalities on aggregate-sum queries on input data are considered. The notion of repair as consistent set of updates at attribute-value level is exploited, and the(More)
On the Complexity of Probabilistic Abstract Argumentation 1 / 24 Introduction Background Complexity results Conclusions and future work Motivation Contribution Argumentation in AI A general way for representing arguments and relationships (rebuttals) between them It allows representing dialogues, making decisions, and handling inconsistency and uncertainty(More)
An architecture is proposed providing robust data acquisition facilities from input documents containing tabular data. This architecture is based on a data-repairing framework exploiting integrity constraints defined on the input data to support the detection and the repair of inconsistencies in the data arising from errors occurring in the acquisition(More)
Though there is much work on how inconsistency in databases should be managed, there is good reason to believe that end users will want to bring their domain expertise and needs to bear in how to deal with inconsistencies. In this paper, we propose the concept of inconsistency management policies (IMPs). We show that IMPs are rich enough to specify many(More)
A probabilistic framework is introduced for reducing the inherent uncertainty of trajectory data collected for RFID-monitored objects. The framework represents the position of an object at each instant as a random variable over the set of possible locations. The probability density function of this random variable is initialized according to an a-priori(More)
2 I am using this term to refer to the second law of thermodynamics, according to which every process that can occur spontaneously will go in one direction only and will result in a release of energy that cannot be recaptured, so that the amount of entropy in the universe will continually increase. ABSTRACT: The title of this article suggests that property(More)