Vicenç Torra

I am working on artificial intelligence. Main research topics include data privacy, approximate reasoning, decision making.

Contact

vicenc.torra@umu.se

+46 90 786 59 48

Works as

Professor at Department of Computing Science

MIT-huset, Umeå universitet, MIT.A.438 Umeå universitet, 901 87 Umeå

I am Professor at the Computing Science department, where I lead the "NAUSICA: PrivAcy-AWare traNSparent deCIsions group".

I am working on AI, data privacy and approximate reasoning (fuzzy sets and systems).

I have written several books including:

V. Torra, Y. Narukawa, Modeling Decisions, Springer, 2007.
V. Torra, Data privacy: Foundations, New Developments and the Big Data Challenge, Springer, 2017.
V. Torra, Guide to Data Privacy, Springer, 2022.
V. Torra, Scala: From a Functional Programming Perspective - An Introduction to the Programming Language. LNCS 9980, Springer, 2016.

Details on my research can be found here: http://www.mdai.cat/vtorra.

Exploring distribution learning of synthetic data generators

Computer Security. ESORICS 2024 International Workshops, Springer Nature 2025 : 65-76

Garg, Sonakshi; Torra, Vicenç

Uncoordinated syntactic privacy: a new composable metric for multiple, independent data publishing

IEEE Transactions on Information Forensics and Security, IEEE 2025, Vol. 20 : 3362-3373

Nicolau, Adrian Tobar; Parra-Arnau, Javier; Forne, Jordi; et al.

On measures resulting from the choquet integration

Information processing and management of uncertainty in knowledge-based systems: 20th international conference, IPMU 2024, Lisbon, Portugal, July 22-26, 2024, proceedings, volume 2, Cham: Springer 2025 : 3-11

Ontkovičová, Zuzana; Torra, Vicenç

Community discovery on dynamic graphs with edge local differential privacy

Complex Systems

Paul, Sudipta; Sadjadi, Fatemeh; Torra, Vicenç; et al.

Improving locally differentially private graph statistics through sparseness-preserving noise-graph addition

Proceedings of the 11th International Conference on Information Systems Security and Privacy: Volume 2, SciTePress 2025 : 526-533

Paul, Sudipta; Salas, Julian; Torra, Vicenç

Generalized F-spaces through the lens of fuzzy measures

Fuzzy sets and systems (Print), Vol. 507

Taha, Mariam; Torra, Vicenç

Differentially private Choquet integral: extending mean, median, and order statistics

International Journal of Information Security, Springer Nature 2025, Vol. 24, (1)

Torra, Vicenç

Efficient federated unlearning under plausible deniability

Machine Learning, Springer Nature 2025, Vol. 114, (1)

Varshney, Ayush K.; Torra, Vicenç

Concept drift detection using ensemble of integrally private models

Machine Learning and Principles and Practice of Knowledge Discovery in Databases: International Workshops of ECML PKDD 2023, Turin, Italy, September 18–22, 2023, Revised Selected Papers, Part V, Springer 2025 : 290-304

Varshney, Ayush K.; Torra, Vicenç

Unlearning clients, features and samples in vertical federated learning

Proceedings on Privacy Enhancing Technologies, Privacy Enhancing Technologies Symposium Advisory Board 2025, Vol. 2025, (2) : 39-53

Varshney, Ayush K.; Vandikas, Konstantinos; Torra, Vicenç

Energy disaggregation risk resilience through microaggregation and discrete Fourier transform

Information Sciences, Elsevier 2024, Vol. 662

Adewole, Kayode S.; Torra, Vicenç

Explainable machine learning models with privacy

Progress in Artificial Intelligence, Springer 2024, Vol. 13 : 31-50

Bozorgpanah, Aso; Torra, Vicenç

Can synthetic data preserve manifold properties?

ICT systems security and privacy protection: 39th IFIP international conference, SEC 2024, Edinburgh, UK, June 12–14, 2024, proceedings, Cham: Springer 2024 : 134-147

Garg, Sonakshi; Torra, Vicenç

Privacy in manifolds: combining k-anonymity with differential privacy on Fréchet means

Computers & security (Print), Elsevier 2024, Vol. 144

Garg, Sonakshi; Torra, Vicenç

Task-specific knowledge distillation with differential privacy in LLMs

Computer Security – ESORICS 2024: 29th European Symposium on Research in Computer Security, Bydgoszcz, Poland, September 16–20, 2024, Proceedings, Part II, Springer Science+Business Media B.V. 2024 : 374-389

Garg, Sonakshi; Torra, Vicenç

Differentially private traffic flow prediction using transformers: a federated approach

Computer Security. ESORICS 2023 International Workshops: CyberICS, DPM, CBT, and SECPRE, The Hague, The Netherlands, September 25–29, 2023, Revised Selected Papers, Part I, Springer Nature 2024 : 260-271

Gupta, Sargam; Torra, Vicenç

Empirical evaluation of synthetic data created by generative models via attribute inference attack

Privacy and identity management: sharing in a digital world, Springer 2024 : 282-291

Kwatra, Saloni; Torra, Vicenç

DISCOLEAF: Personalized DIScretization of COntinuous Attributes for LEArning with Federated Decision Trees

Privacy in statistical databases: International Conference, PSD 2024, Antibes Juan-les-Pins, France, September 25–27, 2024, Proceedings, Springer Nature 2024 : 344-357

Kwatra, Saloni; Torra, Vicenç

Integrally private model selection for support vector machine

Kwatra, Saloni; Varshney, Ayush K.; Torra, Vicenç

The past and future of fuzzy measures and fuzzy integrals: in memory of prof. Michio Sugeno

Modeling decisions for artificial intelligence: 21st international conference, MDAI 2024, Tokyo, Japan, August 27–31, 2024, proceedings, Cham: Springer Nature 2024 : 3-7

Narukawa, Yasuo; Fujimoto, Katsushige; Torra, Vicenç; et al.

Attribute disclosure risk in smart meter data

Privacy in statistical databases: International conference, PSD 2024, Antibes Juan-les-Pins, France, September 25–27, 2024, proceedings, Springer Nature 2024 : 274-283

Navarro-Arribas, Guillermo; Torra, Vicenç

A note on Sugeno exponential function with respect to distortion

Applied Mathematics and Computation, Elsevier 2024, Vol. 470

Negi, Shekhar Singh; Torra, Vicenç

Computation of Choquet integrals: Analytical approach for continuous functions

Information Sciences, Elsevier 2024, Vol. 679

Ontkovičová, Zuzana; Torra, Vicenç

Preprocessed spectral clustering with higher connectivity for robustness in real-world applications

International Journal of Computational Intelligence Systems, Springer Nature 2024, Vol. 17, (1)

Sadjadi, Fatemeh; Torra, Vicenç; Jamshidi, Mina

Games, fuzzy measures, indices, and explainable ML: exploiting the game

Intelligent and fuzzy systems: intelligent industrial informatics and efficient networks proceedings of the INFUS 2024 conference, volume 1, Springer Nature 2024 : 19-25

Torra, Vicenç

Υ-values: power indices à la orness for non-additive measures

IEEE transactions on fuzzy systems, IEEE 2024, Vol. 32, (7) : 4099-4108

Torra, Vicenç

Preface

Modeling decisions for Artificial Intelligence: 21st international conference, MDAI 2024, Tokyo, Japan, August 27–31, 2024, proceedings, Springer Nature 2024 : vi-vi

Torra, Vicenç; Narukawa, Yasuo; Kikuchi, Hiroaki

Modeling decisions for artificial intelligence: 21st international conference, MDAI 2024, Tokyo, Japan, August 27–31, 2024, Proceedings

Lecture Notes in Computer Science, 14986

Torra, Vicenç; Narukawa, Yasuo; Kikuchi, Hiroaki

Privacy protection of synthetic smart grid data simulated via generative adversarial networks

Proceedings of the 20th international conference on security and cryptography, SECRYPT 2023, SciTePress 2023 : 279-286

Adewole, Kayode Sakariyah; Torra, Vicenç

Logic aggregators and their implementations

Modeling decisions for artificial intelligence: 20th international conference, MDAI 2023, Umeå, Sweden, June 19–22, 2023, Proceedings, Springer Science+Business Media B.V. 2023 : 3-42

Dujmović, Jozo; Torra, Vicenç

K-anonymous privacy preserving manifold learning

Proceedings of the 20th international conference on security and cryptography: SECRYPT 2023, SciTePress 2023 : 37-48

Garg, Sonakshi; Torra, Vicenç

Data protection and multi-database data-driven models

Future Internet, MDPI 2023, Vol. 15, (3)

Jiang, Lili; Torra, Vicenç

Data reconstruction attack against principal component analysis

Security and Privacy in Social Networks and Big Data: 9th International Symposium, SocialSec 2023, Canterbury, UK, August 14–16, 2023, Springer Science+Business Media B.V. 2023 : 79-92

Kwatra, Saloni; Torra, Vicenç

On the definition of probabilistic metric spaces by means of fuzzy measures

Fuzzy sets and systems (Print), Elsevier 2023, Vol. 465

Narukawa, Yasuo; Taha, Mariam; Torra, Vicenç

Scores for hesitant fuzzy sets: aggregation functions and generalized integrals

IEEE transactions on fuzzy systems, IEEE 2023, Vol. 31, (7) : 2425-2434

Narukawa, Yasuo; Torra, Vicenç

Existence and uniqueness of solutions of differential equations with respect to non-additive measures

Mathematical methods in the applied sciences, John Wiley & Sons 2023, Vol. 46, (2) : 2174-2196

Negi, Shekhar Singh; Torra, Vicenç

Edge local differential privacy for dynamic graphs

Security and privacy in social networks and big data: 9th International Symposium, SocialSec 2023, Canterbury, UK, august 14–16, 2023, Proceedings, Singapore: Springer 2023 : 224-238

Paul, Sudipta; Salas, Julián; Torra, Vicenç

Δ SFL: (Decoupled Server Federated Learning) to utilize DLG attacks in federated learning by decoupling the server

Proceedings of the 20th International Conference on Security and Cryptography, SciTePress 2023 : 577-584

Paul, Sudipta; Torra, Vicen

Joint multiple efficient neighbors and graph learning for multi-view clustering

Integrated uncertainty in knowledge modelling and decision making: 10th international symposium, IUKM 2023, Kanazawa, Japan, November 2–4, 2023, proceedings, part ii, Springer Science+Business Media B.V. 2023 : 25-36

Sadjadi, Fatemeh; Torra, Vicenç

Differentially private graph publishing through noise-graph addition

Modeling decisions for artificial intelligence: 20th international conference, MDAI 2023, Umeå, Sweden, June 19–22, 2023, proceedings, Springer Science+Business Media B.V. 2023 : 253-264

Salas, Julián; González-Zelaya, Vladimiro; Torra, Vicenç; et al.

Towards measuring fairness for local differential privacy

Data privacy management, cryptocurrencies and blockchain technology: ESORICS 2022 international workshops, DPM 2022 and CBT 2022, Copenhagen, Denmark, September 26–30, 2022, revised selected papers, Springer 2023 : 19-34

Salas, Julián; Torra, Vicenç; Megías, David

Introducing robots and AI in human service organizations: what are the implications for employees and service users?

Handbook of critical studies of artificial intelligence, Cheltenham: Edward Elgar Publishing 2023 : 726-736

Tafvelin, Susanne; Hjelte, Jan; Schimmer, Robyn; et al.

Measuring the distance between machine learning models using F-space

Fuzzy Logic and Technology, and Aggregation Operators: 13th Conference of the European Society for Fuzzy Logic and Technology, EUSFLAT 2023, and 12th International Summer School on Aggregation Operators, AGOP 2023. Palma de Mallorca, Spain, September 4–8, 2023, Proceedings, Springer Science+Business Media B.V. 2023 : 307-319

Taha, Mariam; Torra, Vicenç

A systematic construction of non-i.i.d. data sets from a single data set: non-identically distributed data

Knowledge and Information Systems, Springer Nature 2023, Vol. 65 : 991-1003

Torra, Vicenç

Optimal transport and the Wasserstein distance for fuzzy measures: an example

Intelligent and fuzzy systems: intelligence and sustainable future proceedings of the INFUS 2023 conference, volume 1 : 39-44

Torra, Vicenç

The transport problem for non-additive measures

European Journal of Operational Research, Elsevier 2023, Vol. 311, (2) : 679-689

Torra, Vicenç

Data privacy for machine learning and statistics

Artificial intelligence, Elsevier 2023 : 103-128