Searcharxiv⌕ Search

arXiv subjects

Salvatore Flavio Pileggi

Publications and source records attributed to Salvatore Flavio Pileggi.

2 recordsLinked to original sources

An ontological approach to foster the convergence, interoperability and operationalization of frameworks for Trustworthy AI

AI systems are consistently evolving in terms of both capability and autonomy with an holistic social impact. In this context of proliferation and fast technological evolution, the scientific community is actively engaged to assure Trustworthy AI. However, in general terms, AI safety research is significantly slower and is facing critical challenges in terms of strategy, consensus and operationalisation. This paper presents AI-Ethics Ontology (AI-EO) which, by leveraging Semantic Technologies on the Web infrastructure and ontology-based knowledge representations, provides an abstracted semantic infrastructure to foster the convergence, interoperability and operationalization of the different frameworks for Trustworthy AI. The current implementation results from the analysis of two relevant case studies to establish a dynamic development process in fact, as well as to enable its iterative evolution according to a formally-defined methodology. The version 1.0 of the Ontology is freely available and has been designed to be conceptually close to target applications, in a context of interoperability, adaptability as a natural response to change and usability.

cs.CY↗

Implications of construction decisions in keyword-based networks: an empirical assessment

The large amounts of data continuously generated online offer opportunities to identify and analyse trends in various aspects of society. For instance, data from online social media are frequently used as a means of analysing informal interactions, opinions, and feelings of groups of people. Additionally, bibliometric data can be used to investigate more formal trends that occur in scientific research. A popular approach to analysing such complex semi-structured data is the construction of complex networks based on keywords or concept extraction. However, such keyword-based complex network data are often shared in a preprocessed form, with little information about the underlying process used to construct it. Indeed, key decisions are normally made at an early stage in the construction of complex networks from raw data, and can have a significant impact on subsequent analysis and interpretation. In this paper, we highlight the sensitivity of results to data preprocessing decisions by looking at two different case studies which employ networks constructed from underlying semi-structured data. The experiments conducted show high sensitivity to data preprocessing for many commonly adopted metrics. These results demonstrate the need for transparent reporting of data lineage and preprocessing decisions.

cs.SI↗