| Vol-2646 urn:nbn:de:0074-2646-8 Copyright © 2020 for the individual papers by the papers' authors. Copyright © 2020 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).

# SEBD 2020
Italian Symposium on Advanced Database Systems

### Proceedings of the 28th Italian Symposium on Advanced Database Systems

### Villasimius, Sud Sardegna, Italy (virtual due to Covid-19 pandemic), June 21-24, 2020.

Edited by

### Maristella Agosti *1
Maurizio Atzori *2
Paolo Ciaccia *3
Letizia Tanca *4

*1 University of Padua, Department of Information Engineering, Italy
*2 University of Cagliari, DMI - Department of Math/CS, Italy
*3 University of Bologna, Department of Informatics - Science and Engineering, Italy
*4 Politecnico di Milano, DEIB - Dipartimento di Elettronica, Informazione e Bioingegneria, Italy

## Table of Contents

- Preface of the 28th Italian Symposiumon Advanced Database Systems
- In Memoriam of Prof. Antonio Picariello (“Picus”) i - ii
  Maristella Agosti, Maurizio Atzori, Paolo Ciaccia, Letizia Tanca

### Invited Talks

- 15 Years of Knowledge Graphs: Lessons, Challenges, Opportunities (Abstract) iii
  Gerhard Weikum
- Usability, Performance and Scalability for Expressive Data Languages via Cardinality-Based Aggregates (Abstract) iv
  Carlo Zaniolo
- Getting Rid of Data (Abstract) v
  Tova Milo

### Panels and Tutorials

- Open Science: A tutorial for the database systems community (Extended Abstract) vi - viii
  Emma Lazzeri, Paolo Manghi

### Session 1: Ontologies and data integration

- A Bootstrapping Approach for Semi-Automated Legal Knowledge Extraction and Enrichment 1 - 11
  Silvana Castano, Mattia Falduti, Alfio Ferrara, Stefano Montanelli
- Scaling Up Record-level Matching Rules 12 - 23
  Luca Gagliardelli, Giovanni Simonini, Sonia Bergamaschi
- Smart Data Exchange 24 - 31
  Sergio Greco, Michele Ianni, Elio Masciari, Domenico Saccà, Irina Trubitsyna

### Session 2: Anomaly detection and dependencies

- Lattice-based Discovery of Hybrid Relaxed Functional Dependencies 32 - 39
  Loredana Caruccio, Vincenzo Deufemia, Giuseppe Polese
- Detecting and Explaining Exceptional Values in Categorical Data 40 - 47
  Fabrizio Angiulli, Fabio Fassetti, Luigi Palopoli, Cristina Serrao
- Probabilistic Answers over Inconsistent Knowledge Bases 48 - 55
  Marco Calautti, Nicola Fiorentino, Sergio Greco, Cristian Molinaro, Irina Trubitsyna

### Session 3: Text analysis and search

- Parallelizing Approximate Search on Adaptive Radix Trees 56 - 67
  Tobias Groth, Sven Groppe, Martin Koppehel, Thilo Pionteck
- A Document-based RDF Keyword Search System: Query-by-Query Analysis 68 - 79
  Dennis Dosso, Gianmaria Silvello
- Capturing Political Polarization of Reddit Submissions in the Trump Era 80 - 87
  Virginia Morini, Laura Pollacci, Giulio Rossetti

### Session 4: Deep learning

- Accounting Journal Reconstruction with Variational Autoencoders and Long Short-term Memory Architecture 88 - 99
  Mario Zupan, Svjetlana Letinic, Verica Budimir
- Explainability Methods for Natural Language Processing: Applications to Sentiment Analysis 100 - 107
  Francesco Bodria, André Panisson, Alan Perotti, Simone Piaggesi
- Some experiments on Deep Learning for Fake News Detection 108 - 115
  Angelo Chianese, Elio Masciari, Vincenzo Moscato, Antonio Picariello, Giancarlo Sperlì

### Session 5: NoSQL data

- libJoTS: JSON That Syncs! 116 - 127
  Amos Brocco, Patrick Ceppi, Lorenzo Sinigaglia
- OLAP Querying of Document Stores in the Presence of Schema Variety 128 - 135
  Matteo Francia, Enrico Gallinucci, Matteo Golfarelli, Stefano Rizzi

### Session 6: Trajectories and diffusion

- MASTER: A Multiple Aspects View on Trajectories 136 - 143
  Ronaldo dos Santos Mello, Vania Bogorny, Luis Otavio Alvares, Luiz Henrique Zambom Santana, Carlos Andres Ferrero, Angelo Augusto Frozza, Geomar Andre Schreiner, Chiara Renso
- A Framework for Complex Influence Propagation based on the F2DLT Class of Diffusion Models 144 - 151
  Antonio Caliò, Andrea Tagarelli

### Session 7: Health and medicine

- A Post-Analysis of Query Reformulation Methods for Clinical Trials Retrieval 152 - 159
  Maristella Agosti, Giorgio Maria Di Nunzio, Stefano Marchesin
- Prediction of New Associations between ncRNAs and Diseases Exploiting Multi-Type Hierarchical Clustering 160 - 167
  Emanuele Pio Barracchia, Gianvito Pio, Domenica D'Elia, Michelangelo Ceci
- On the Use of GIS for Health and Epidemiology Control 168 - 174
  Giuseppe Tradigo, Patrizia Vizza, Pietro Hiram Guzzi, Pierangelo Veltri
- Privacy-aware design for E-Health Information Systems 175 - 185
  Flora Amato, Giovanni Cozzolino, Francesco Moscato, Vincenzo Moscato, Antonio Picariello, Giancarlo Sperlì

### Session 8: Context and ranking

- Formal Verification of Context Aware Systems 186 - 193
  Fabio A. Schreiber, Maria Elena Valcher
- Where Porceddu is better than Pasta 194 - 201
  Paolo Ciaccia, Davide Martinenghi, Riccardo Torlone
- Context Awareness in the Travel Companion of the Shift2Rail Initiative 202 - 209
  Alireza Javadian Sabet, Matteo Rossi, Fabio A. Schreiber, Letizia Tanca
- Improving Learning to Rank By Leveraging User Dynamics and Continuation Methods 210 - 217
  Nicola Ferro, Claudio Lucchese, Maria Maistro, Raffaele Perego

### Session 9: Social and knowledge graphs

- Interpreting Link Prediction on Knowledge Graphs 218 - 221
  Andrea Rossi
- Co-posting Author Assortativity in Reddit 222 - 233
  Francesco Cauteruccio, Enrico Corradini, Giorgio Terracina, Domenico Ursino, Luca Virgili
- How to Cope with Personnel Unavailability? Process Mining May Help! 234 - 241
  Andrea Chiorrini, Claudia Diamantini, Domenico Potena, Emanuele Storti
- Crowdsourcing for Building Knowledge Graphs at Scale from the Vatican Archives 242 - 249
  Donatella Firmani, Paolo Merialdo, Elena Nieddu, Andrea Rossi, Riccardo Torlone

### Session 10: Multimedia content analysis

- Automatic Detection of Dysplastic Nevi: A Multiple Instance Learning Solution 250 - 257
  Eugenio Vocaturo, Ester Zumpano
- Scalar Quantization-Based Text Encoding for Large Scale Image Retrieval 258 - 265
  Giuseppe Amato, Fabio Carrara, Fabrizio Falchi, Claudio Gennaro, Fausto Rabitti, Lucia Vadicamo
- Towards Automatic Classification of Sheet Music 266 - 277
  Giuseppe De Pasquale, Blerina Spahiu, Pietro Ducange, Andrea Maurino
- Edge-Based Video Surveillance with Embedded Devices 278 - 285
  Hanna Kavalionak, Claudio Gennaro, Giuseppe Amato, Claudio Vairo, Costantino Perciante, Carlo Meghini, Fabrizio Falchi, Fausto Rabitti

### Session 11: Security issues

- Gathering Malware Data through High-Interaction Honeypots 286 - 293
  Angelo Furfaro, Francesco Lupia, Domenico Saccà
- Towards Reusable Smart Contracts for Trustworthy Collaborative Processes 294 - 301
  Ada Bagozi, Devis Bianchini, Valeria De Antonellis, Massimiliano Garda, Michele Melchiori
- kNN-guided Adversarial Attacks 302 - 309
  Fabio Valerio Massoli, Fabrizio Falchi, Giuseppe Amato
- Knowledge-enhanced Shilling Attacks for Recommendation 310 - 317
  Vito Walter Anelli, Yashar Deldjoo, Tommaso Di Noia, Felice Antonio Merra, Giuseppe Acciani, Eugenio Di Sciascio

### Session 12: Data mining

- Tensor Co-clustering: A Parameter-less Approach 318 - 325
  Elena Battaglia, Ruggero G. Pensa
- Classification-based Content Sensitivity Analysis 326 - 333
  Elena Battaglia, Livio Bioglio, Ruggero G. Pensa
- User Emotion Detection via Taxonomy Management: An Innovative System 334 - 342
  Alfredo Cuzzocrea, Giovanni Pilato, Edoardo Fadda
- jKarma: A Highly-Modular Framework for Pattern-Based Change Detection on Evolving Data 343 - 350
  Angelo Impedovo, Corrado Loglisci, Michelangelo Ceci, Donato Malerba

2020-08-04: submitted by Maurizio Atzori, metadata incl. bibliographic data published under Creative Commons CC0
2020-08-05: published on CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) |valid HTML5|