|  | Vol-3078 urn:nbn:de:0074-3078-8 Copyright © 2022 for the individual papers by the papers' authors. Copyright © 2022 for the volume as a collection by its editors. This volume and its papers are published under the Creative Commons License Attribution 4.0 International (CC BY 4.0).

# AIxIA 2021 DP
AIxIA 2021 Discussion Papers

### AIxIA 2021 Discussion Papers
co-located with the the 20th International Conference of the Italian Association for Artificial Intelligence (AIxIA2021)

### Anywhere, December 1st-3rd, 2021.

Edited by

### Viviana Mascardi *
Matteo Palmonari **
Giuseppe Vizzari **

* Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi - DIBRIS, Università di Genova, Genova, Italy,
** Department of Informatics, Systems and Communication, Università degli Studi di Milano-Bicocca, Milano, Italy

## Table of Contents

Summary: There were 14 papers submitted for peer-review to this workshop. Out of these, 11 papers were accepted for this volume, 8 as regular papers and 3 as short papers.

### Knowledge representation, reasoning, and learning

- From Node Embeddings to Triple Embeddings 1-9
  Valeria Fionda, Giuseppe Pirrò
- Multilayer Perceptrons as Weighted Conditional Knowledge Bases: an Overview 10-18
  Laura Giordano, Daniele Theseider Dupré
- Probabilistic logic programming in 2P-KT 19-32
  Jason Dellaluce, Roberta Calegari, Giovanni Ciatto

### Machine Learning, Natural Language Processing, Signal Processing

- A Discussion about Explainable Inference on Sequential Data via Memory-Tracking 33-44
  Biagio La Rosa, Roberto Capobianco, Daniele Nardi
- Real-time Italian Sign Language Recognition with Deep Learning 45-57
  Veronica J. Schmalz
- Hyperbolic Embedding for Finding Syntax in BERT(short paper) 58-64
  Temirlan Auyespek, Thomas Mach, Zhenisbek Assylbekov
- A Taxonomy of Tools for Reproducible Machine Learning Experiments 65-76
  Luigi Quaranta, Fabio Calefato, Filippo Lanubile

### Recommender Systems

- Fairness and Popularity Bias in Recommender Systems: an Empirical Evaluation 77-91
  Cataldo Musto, Pasquale Lops, Giovanni Semeraro

### AI and applications

- Understanding Art with AI: Our Research Experience(short paper) 92-98
  Giovanna Castellano, Gennaro Vessio
- Hydrocontrol IT: an attempt to mitigate water losses in Italy towns(short paper) 99-107
  Giuseppe Benvenuto, Salvatore Iiritano, Luigi Mirto, Pasquale Piccione, Massimiliano Ruffolo, Simone Vizza, Manuel Borroto, Francesco Ricca
- Unsupervised Data Pattern Discovery on the Cloud 108-120
  Thomas Cecconello, Lucas Puerari, Giuseppe Vizzari

2022-01-21: submitted by Giuseppe Vizzari, metadata incl. bibliographic data published under Creative Commons CC0
2022-01-24: published on CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) |valid HTML5|