AI and Big Data at the service of truth

Aletheia, a Greek word for the unveiling of truth, has had alternate fortunes in the history of Western thought, becoming appreciated in the philosophical debate of the twentieth century. Today it has again become central to social and political discussion, after the Oxford English Dictionary defined and recognized the term Post-truth as "word of the year" in 2016. Since then, this theme has seen key roles being taken on by fake news, the political debate around the theme of misinformation (which we must not translate with the simple concept of disinformation, whose connotation is much more intelligence-oriented) and finally deep fakes, that is, videos similar to real ones, but elaborately fabricated, thanks to Artificial Intelligence techniques. How greatly these issues have an impact on our daily lives today is demonstrated by the fact that many operators believe they are capable of putting at risk the proper performance of democratic processes. Climate, immigration and the European context are typical scenarios in which false news can influence the perception of social and commercial actions.