Scientific Community Service
Editorial Activity
Edited Volumes
Discovering Drift Phenomena in Evolving Landscapes
LNCS Vol. 15013, Springer, 2025 (DELTA '25)
LNCS Vol. 15013, Springer, 2025 (DELTA '25)
Advances in Bias and Fairness in Information Retrieval
CCIS Vol. 1610, Springer, 2022 (BIAS '22)
CCIS Vol. 1610, Springer, 2022 (BIAS '22)
Advances in Bias and Fairness in Information Retrieval
CCIS Vol. 1418, Springer, 2021 (BIAS '21)
CCIS Vol. 1418, Springer, 2021 (BIAS '21)
Bias and Social Aspects in Search and Recommendation
CCIS Vol. 1245, Springer, 2020 (BIAS '20)
CCIS Vol. 1245, Springer, 2020 (BIAS '20)
Social Aspects in Personalization and Search
LNCS, Springer, 2019 (SoAPS '19)
LNCS, Springer, 2019 (SoAPS '19)
Special Issues & Guest Editorial Boards
Special Issue on Algorithmic Bias and Fairness in Search and Recommendation
Information Processing & Management (IPM), Vol. 59, Elsevier, 2021
Information Processing & Management (IPM), Vol. 59, Elsevier, 2021
Guest Editorial Board
ECML/PKDD 2020/2021 Journal Track
ECML/PKDD 2020/2021 Journal Track
Special Issue on Social Media for Personalization and Search
Information Retrieval Journal (IRJ), Springer, Vol. 22, Issue 1-2, April 2019
Information Retrieval Journal (IRJ), Springer, Vol. 22, Issue 1-2, April 2019
Conference Organization
Conference-Level Roles
| Year | Role | Conference |
|---|---|---|
| 2025 | PC Co-Chair | CIKM 2025, Seoul, Korea |
| 2026 | Workshop Chair | WSDM 2026, Boise, Idaho, USA |
| 2024 | Student Travel Awards Chair | CIKM 2024, Boise, Idaho, USA |
| 2024 | Program Chair | itaDATA 2024, Pisa, Italy |
| 2022 | DC Co-Chair | UMAP 2022, Barcelona, Spain |
| 2022 | Research Track Chair (Big Data and AI) | itaDATA 2022, Milan, Italy |
| 2021 | Research Track Chair (Graph Neural Networks) | ICDM 2021, Auckland, New Zealand |
| 2020 | Research Track Chair (Autoencoders) | KDD 2020, San Diego, USA |
| 2020 | Research Track Chair (Outlier & Anomaly Detection) | ICDM 2020, Sorrento, Italy |
Workshop & Tutorial Organization
| Year | Event | Hosted at |
|---|---|---|
| 2025 | WIPE-OUT '25 — Workshop on Machine Unlearning Techniques | ECML-PKDD 2025 |
| 2025 | Tutorial: Unraveling Graph Counterfactual Explainability | ECML-PKDD 2025 |
| 2025 | Course: Machine Unlearning (Theory, Methods, Evaluations) | ESSAI 2025 |
| 2024 | DELTA '24 — Discovering Drift in Evolving Landscape (Lead-Chair) | KDD 2024 |
| 2024 | Tutorial: Graphs Counterfactual Explainability | AAAI 2024 |
| 2024 | Lab: Digging into the Landscape of GCE | AAAI 2024 |
| 2023 | BIAS '23 — Algorithmic Bias in Search and Recommendation | ECIR 2023 |
| 2022 | BIAS '22 — Algorithmic Bias in Search and Recommendation | ECIR 2022 |
| 2021 | BIAS '21 — Algorithmic Bias in Search and Recommendation | ECIR 2021 |
| 2020 | BIAS '20 — Algorithmic Bias in Search and Recommendation | ECIR 2020 |
| 2020 | Tutorial: Student Dropout Prediction in Online Courses | CIKM 2020 |
| 2019 | SoMePeAS '19 — Social Media for Personalization and Search | ECIR 2019 |
| 2019 | Coding Conscious Cities — Interdisciplinary Research Tracks | ACM womENcourage 2019 |
| 2018 | SIR '18 — Social Interaction-based Recommendation | CIKM 2018 |
| 2018 | SoAPS '18 — Social Aspects in Personalization and Search | ECIR 2018 |
| 2017 | SERecSys '17 — Semantics-Enabled Recommender Systems | ICDM 2017 |
| 2017 | SoMePeAS '17 — Social Media for Personalization and Search | ECIR 2017 |
| 2016 | SERecSys '16 — Semantics-Enabled Recommender Systems | ICDM 2016 |
Invited Talks & Tutorials
Sep 2025
Unraveling Graph Counterfactual Explainability: from Theoretical Foundations to Technical Mastery
Tutorial at ECML-PKDD 2025, Porto, Portugal
Jun 2025
Machine Unlearning: Theory, Methods, and Evaluations with Hands-On Insights
Course at ESSAI 2025, Bratislava, Slovakia
Jul 2024
Bias, Fairness, and Explainability: Building Trust in AI Systems
Technical University of Munich — Responsible Data Science
May 2024
The Future of Digitalized Healthcare
Intl. Summer School on Digitalization for Health, Pristina, Kosovo
Nov 2023
Graphs' Counterfactual Explainability Landscape: current state and frontiers
XAI.it 2023 at AIxIA 2023, Rome, Italy
Nov 2023
Uncovering Gender Bias in Academia
AI-GAP, L'Aquila, Italy
Jul 2023
Explainability Techniques for Tabular Data, Images, Time Series and Graphs
SoBigData Summer School 2023, Lipari Island, Sicily
Oct 2020
Challenges and Solutions to the Student Dropout Prediction Problem
Tutorial at CIKM 2020, Galway, Ireland
Jul 2020
Task Force on AI & COVID-19: Results and next steps
CLAIRE Worldwide Webinar
Nov 2019
Tailoring Centrality Measures in Multiplex Networks
George Mason University, Fairfax, USA
Nov 2018
Time Makes Sense
Gran Sasso Science Institute, L'Aquila, Italy
Jul 2018
Centrality Measures in Multiplex Networks with Cyclic Dependencies
EURECAT Labs, Barcelona, Spain
Jun 2017
Capturing users' information and communication needs for the press officers
EURECAT Labs, Barcelona, Spain
Jun 2014
Time Makes Sense
Yahoo Labs, Barcelona, Spain
Program Committees
Senior Program Committee / Area Chair
| Conference | Years |
|---|---|
| CIKM — ACM Intl. Conf. on Information and Knowledge Management | PC Co-Chair 2025, SPC 2024 (Special Recognition) |
| ECAI — European Conf. on Artificial Intelligence | SPC 2025, 2023 |
| IJCAI — Intl. Joint Conf. on Artificial Intelligence | SPC 2025 |
| SDM — SIAM Intl. Conf. on Data Mining | SPC 2025, 2023 |
Program Committee Member
Active or recent PC memberships at top-tier venues (2019–2025):
AAAI — 2023, 2020, 2019
IJCAI — 2021, 2020
KDD — 2022, 2021, 2020, 2019
ECML-PKDD — 2024, 2021, 2020
ICDM — 2022, 2021, 2020
ACL-IJCNLP — 2021
PAKDD — 2023
SDM — 2022
itaDATA — 2025
Journal Reviewing
Regular reviewer for the following international journals:
Machine Learning (MACH)
Springer
ACM Trans. on Knowledge Discovery from Data (TKDD)
ACM Press
ACM Trans. on Intelligent Systems and Technology (TIST)
ACM Press
IEEE Trans. on Knowledge and Data Engineering (TKDE)
IEEE Computer Society
Data Mining and Knowledge Discovery (DAMI)
Springer
Artificial Intelligence (AI)
Elsevier
Knowledge and Information Systems (KAIS)
Springer
Artificial Intelligence in Medicine (AIIM)
Elsevier
Information Processing & Management (IPM)
Elsevier
Applied Network Science (ANS)
Springer