529 citations · 654 across the 24 of their papers we have counts for
17 papers · 1 filter
A Fuzzy Rule-based Neuro-Symbolic Approach for Pipe Severity Prediction in Sewer Networks
Ngoc Thai Le, Thanh Ma, Umberto Straccia
Standard automated sewer pipe severity assessment relies on direct image classification, creating a "black box" where the link between visual defects and final severity scores rema…
Fuzzy Quantification over OWL Ontologies and Knowledge Graphs
Enrique Palacín, Fernando Bobillo, Ignacio Huitzil +2
This paper presents a versatile framework for evaluating fuzzy quantification queries over both standard and fuzzy ontologies as well as knowledge graphs. The primary objective is…
Tractable Reasoning and Conjunctive Query Answering for Defeasible DL-Lite under Rational Closure
Giovanni Casini, Umberto Straccia
In Description Logics (DLs), reasoning under Rational Closure (RC) is a well-known and widely accepted non-monotonic formalism to handle defeasible knowledge. In this paper, we stu…
Belief Change based on Knowledge Measures
Umberto Straccia, Giovanni Casini
Knowledge Measures (KMs) aim at quantifying the amount of knowledge/information that a knowledge base carries. On the other hand, Belief Change (BC) is the process of changing beli…
PN-OWL: A Two Stage Algorithm to Learn Fuzzy Concept Inclusions from OWL Ontologies
Franco Alberto Cardillo, Franca Debole, Umberto Straccia
OWL ontologies are a quite popular way to describe structured knowledge in terms of classes, relations among classes and class instances. In this paper, given a target class T of a…
A General Framework for Modelling Conditional Reasoning -- Preliminary Report
Giovanni Casini, Umberto Straccia
We introduce and investigate here a formalisation for conditionals that allows the definition of a broad class of reasoning systems. This framework covers the most popular kinds of…