Contextual Reasoning for Scene Generation (Technical Report)

We present a continuation to our previous work, in which we developed the MR-CKR framework to reason with knowledge overriding across contexts organized in multi-relational hierarchies. Reasoning is realized via ASP with algebraic measures, allowing for flexible definitions of preferences. In this paper, we show how to apply our theoretical work to real autonomous-vehicle scene data. Goal of this work is to apply MR-CKR to the problem of generating challenging scenes for autonomous vehi...

Il risparmio in cifre. Un breve repertorio di dati statistici

Know your exceptions: Towards an Ontology of Exceptions in Knowledge Representation

Defeasible reasoning is a kind of reasoning where some generalisations may not be valid in all circumstances, that is general conclusions may fail in some cases. Various formalisms have been developed to model this kind of reasoning, which is characteristic of common-sense contexts. However, it is not easy for a modeller to choose among these systems the one that better fits its domain from an ontological point of view. In this paper we first propose a framework based on the notions of ...

Non-Performing Loans and Systemic Risk in Financial Networks

In this paper we study the impact of non-performing loans (NPLs) on financial stability using a network based approach. We start by combining loan-level data from DealScan and firm-level data from Orbis to reconstruct the global financial network in 1991-2016 and identify a series of stylized facts. We show that many regularities found at national level by the literature hold also at international level. Based on our empirical findings, we develop a simple network model in which banks and fi...