Search Results for author: Giancarlo Ruffo

Found 10 papers, 2 papers with code

Anomaly detection in cross-country money transfer temporal networks

no code implementations24 Nov 2023 Salvatore Vilella, Arthur Thomas Edward Capozzi Lupi, Marco Fornasiero, Dario Moncalvo, Valeria Ricci, Silvia Ronchiadin, Giancarlo Ruffo

It overcomes many limitations of current prevalent paradigms, offering a holistic interpretation of the financial data landscape and addressing potential blindness to phenomena that cannot be effectively estimated through single-node or narrowly focused transactional approaches.

Anomaly Detection

Analyzing and visualizing polarization and balance with signed networks: the U.S. Congress case study

no code implementations1 Sep 2022 Arthur Capozzi, Alfonso Semeraro, Giancarlo Ruffo

Signed networks and balance theory provide a natural setting for real-world scenarios that show polarization dynamics, positive/negative relationships, and political partisanship.

Reconciling the Quality vs Popularity Dichotomy in Online Cultural Markets

no code implementations28 Apr 2022 Rossano Gaeta, Michele Garetto, Giancarlo Ruffo, Alessandro Flammini

We propose a simple model of an idealized online cultural market in which $N$ items, endowed with a hidden quality metric, are recommended to users by a ranking algorithm possibly biased by the current items' popularity.

Writing about COVID-19 vaccines: Emotional profiling unravels how mainstream and alternative press framed AstraZeneca, Pfizer and vaccination campaigns

no code implementations19 Jan 2022 Alfonso Semeraro, Salvatore Vilella, Giancarlo Ruffo, Massimo Stella

Our findings expose crucial aspects of the emotional narratives around COVID-19 vaccines adopted by the press, highlighting the need to understand how alternative and mainstream media report vaccination news.

Studying Fake News Spreading, Polarisation Dynamics, and Manipulation by Bots: a Tale of Networks and Language

no code implementations13 Sep 2021 Giancarlo Ruffo, Alfonso Semeraro, Anastasia Giachanou, Paolo Rosso

With the explosive growth of online social media, the ancient problem of information disorders interfering with news diffusion has surfaced with a renewed intensity threatening our democracies, public health, and news outlets' credibility.

Misinformation Rumour Detection

PyPlutchik: visualising and comparing emotion-annotated corpora

1 code implementation19 Apr 2021 Alfonso Semeraro, Salvatore Vilella, Giancarlo Ruffo

The increasing availability of textual corpora and data fetched from social networks is fuelling a huge production of works based on the model proposed by psychologist Robert Plutchik, often referred simply as the ``Plutchik Wheel''.

Learning Real Estate Automated Valuation Models from Heterogeneous Data Sources

no code implementations2 Sep 2019 Francesco Bergadano, Roberto Bertilone, Daniela Paolotti, Giancarlo Ruffo

Real estate appraisal is a complex and important task, that can be made more precise and faster with the help of automated valuation tools.

People are Strange when you're a Stranger: Impact and Influence of Bots on Social Networks

no code implementations30 Jul 2014 Luca Maria Aiello, Martina Deplano, Rossano Schifanella, Giancarlo Ruffo

Bots are, for many Web and social media users, the source of many dangerous attacks or the carrier of unwanted messages, such as spam.

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