
New: 
I am at Dept. Computing Science, Umeå University, Sweden. I lead the PrivAcyAWare traNSparent deCIsions research group. We are hiring 2 PhDs (2 postdocs are planned <= 2022). Links:


Reviews 
If you are planning to invite me to review a paper the following is of your interest: I am overcommitted with reviews. So, I tend to decline reviews unless I am in the editorial board of the journal, the program committee of the conference, or it is an invitation from a journal in which I regularly publish. In particular, I decline by default all papers on hesitant fuzzy sets (I am very sorry but I have no time to read them all). Naturally, if a paper seems very interesting to me I may override these rules.


Address: 
MIThuset, Umeå universitet, C444
Umeå universitet, 901 87 Umeå, Sweden.


Plenary: 
Plenary talk at INFUS 2021 (İzmir,  online  2021).


A book: 
V. Torra (2017) Data Privacy: Foundations, New Developments and the Big Data Challenge, Springer.
Introductory text to the field of data privacy, based on my lectures and own research. Data privacy from a technological perspective; problems and solutions of the three main communities working on data privacy: statistical disclosure control, privacypreserving data mining, and privacyenhancing technologies. The content of the book and a definition of data science are reviewed in Chapter 1 Data Science: an introduction. 

Edited book: 
Alan Said, Vicenç Torra (2019) Data Science in Practice, Springer.
"Data science is the science of data. Its goal is to explain processes and objects through the available data. The explanation is expected to be objective and accurate enough to make predictions. The ultimate goal of the explanations is to make informed decisions based on the knowledge extracted from the underlying data" (Chapter 1). This book approaches big data, artificial intelligence, machine learning, and business intelligence through the lens of Data Science. The book is structured into three parts: (i) the core concepts of data science, (ii) application domains, and (iii) specific tools for data science. 

Email: 
Note that my old email address vt**ra@ii*a.c*ic.** does not work any more.


A book: 
V. Torra (2016) Scala: from a functional programming perspective, Springer. (LNCS 9980)
Text based on my lectures in the course Advanced Programming in the Master of Data Science (University of Skövde) 

Editor: 
Transactions on Data Privacy Indexed at DBLP, ACM Digital Library, MathSciNet, DOAJ, Elsevier (Scopus, EI) 

Project: 
Vetenskapsrådet project: "Disclosure risk and transparency in big data privacy" (VR 201603346, 20172020).


6 Recent papers: 
 Privacy by design in big data (ENISA Report):
(download, open access) G. D'Acquisto, J. DomingoFerrer, P. Kikiras, V. Torra, Y.A. de Montjoye, A. Bourka (2015) Privacy by design in big data: An overview of privacy enhancing technologies in the era of big data analytics, European Union Agency for Network and Information Security (ENISA), 2015. ISBN: 9789292041601, DOI: 10.2824/641480.  Big data privacy and anonymization: (download, open access) V. Torra, G. NavarroArribas (2017) Big data privacy and anonymization, in A. Lehmann et al., Privacy and Identity Management. IFIP AICT 498 1526.  Integral privacy: (download, open access) N. Senavirathne, V. Torra, Integrally Private Model Selection For Decision Trees, Computers & Security 83 (2019) 167181.  Fuzzy microaggregation: (download) V. Torra (2017) Fuzzy microaggregation for the transparency principle, Journal of Applied Logic 23 7080.  ML, record linkage, and disclosure risk: (download) D. Abril, V. Torra, G. NavarroArribas (2015) Supervised learning using a symmetric bilinear form for record linkage, Information Fusion 26 (2015) 144153.  Extending gametheoretic network analysis: (download, open access) V. Torra, Y. Narukawa (2019) On network analysis using nonadditive integrals: extending the gametheoretic network centrality, Soft Computing 23:7 23212329. 

Books: 
I have written the following books:


I am busy organizing 
PC cochair: 

Selected activities 
Recent invited talks:
(INFUS 2019); Choquet integral in decision making and metric learning (IUKM 2019); Big Data Privacy and Anonymization (IFIP Summer School 2016 on Privacy and Identity Management for Life); Choquet integral: distributions and decisions (83rd EWGMCDA 2016); Transparency and Disclosure Risk in Data Privacy (PAIS 2015) Editor: Transactions on Data Privacy Editorial board: Fuzzy Sets and Systems (2004), IEEE Transactions on Fuzzy Systems (2019), Progress in Artificial Intelligence (2011), J. of Advanced Computational Intelligence and Intel. Informatics (2007), Int. J. of Computational Intelligence System (2008), Information Sciences (20092019), Mathware and Soft Computing (20012010), EUSFLAT newsletter (Editor, 20052009), ACIA Newsletter (Butlletí de l'Associació Catalana d'Intel·ligència Artificial; NODES), Journal of Privacy Technology (20042007), Intelligent Decision Technologies (20072009?) Conferences (organization): MDAI 20042019 (PC cochair); AGOP 2017 (chair); SweDS 2016 (chair); PST 2015 and (Privacy track PC cochair); PSD 2004 (PC cochair); CCIA 1998 (General chair) Scientific associations: EUSFLAT (European Soc. for Fuzzy Logic and Techn.) (board 20012009; 20132017). ACIA (AI Catalan Assoc.) (Founding member, board 19962000; president 20102014). IEEE Institute of Electrical and Electronics Engineers (member 1996, senior 2003, fellow 2017). 

Research interests 
My research interests are between computer science and applied mathematics. I am interested in approximate reasoning, data privacy, machine learning (data mining and statistical learning), decision making, data aggregation and information fusion, fuzzy set theory. My specialization is in data privacy and in approximate reasoning. In more details:


Brief biographical history 
1991. B. Sc. in Computer Science,
Universitat Politècnica de Catalunya (UPC) 1992. M. Sc. in Computer Science, UPC 1994. Ph. D. in Computer Science (Ph.D. Program on AI), UPC 1994. Assistant Professor (tenured), Universitat Rovira i Virgili (URV) 19941995. Deputy Dean of the School of Engineering, URV 1997. Associate Professor (tenured), URV 1999. Tenured Scientist (Associate Professor  Research Track), IIIACSIC 2004. Acreditation for Full Professorship 2008. Research Scientist (Senior Associate Professor  Research Track), IIIACSIC 2010. EurAI Fellow (former ECCAI) 2013. ISI Elected member 2014. Professor in Informatics, University of Skövde, Sweden 2016. IEEE Fellow. 2018. Professor, Hamilton Institute, Maynooth University, Ireland. 2020. Professor, Department of Computing Science, Umeå University, Sweden.  
Papers (selected) 
Links to:
DBLP,
MathSciNet,
Scholar Google
Books (monographs, selected): (see above) Papers: Data privacy: (More detailed information and papers on data privacy here )  N. Senavirathne, V. Torra, Integrally Private Model Selection For Decision Trees, Computers \& Security 83 (2019) 167181. (here: open access)  V. Torra, G. NavarroArribas, Integral Privacy, Proc. CANS 2016 661669. (here)  V. Torra, Constrained Microaggregation: Adding Constraints for Data Editing, Transactions on Data Privacy 1:2 (2008) 86104. (here)  J. Nin, J. Herranz, V. Torra, Rethinking rank swapping to decrease disclosure risk, Data & Knowledge Engineering, 64:1 (2008) 346364. (here)  J. DomingoFerrer, V. Torra, Ordinal, Continuous and Heterogeneous kAnonymity Through Microaggregation, Data Mining and Knowledge Discovery, 11:2 (2005) 195212. (here)  J. DomingoFerrer, V. Torra, Disclosure control methods and information loss for microdata, in P. Doyle, J. I. Lane, J. J. M. Theeuwes, L. V. Zayatz (Eds), Confidentiality, Disclosure and Data Access: Theory and Practical Applications for Statistical Agencies, (ISBN:0444507612, NorthHolland, 2001), 91110. (here)  J. DomingoFerrer, V. Torra, A quantitative comparison of disclosure methods for microdata, in P. Doyle, J. I. Lane, J. J. M. Theeuwes, L. V. Zayatz (Eds), Confidentiality, Disclosure and Data Access: Theory and Practical Applications for Statistical Agencies, (ISBN:0444507612, NorthHolland, 2001), 111133. (here) Graphs (data protection and analysis):  V. Torra, Y. Narukawa, On network analysis using nonadditive integrals: extending the gametheoretic network centrality, Soft Computing 23:7 (2019) 23212329. (here)  V. Torra, A. Jonsson, G. NavarroArribas, J. Salas, Synthetic generation of spatial graphs, Int. J. of Intel. Systems 33:12 (2018) 23642378. (here) Information fusion / aggregation:  V. Torra, Y. Narukawa, Numerical integration for the Choquet integral, Information Fusion 31 (2016) 137145. (here)  D. Abril, V. Torra, G. NavarroArribas, Supervised learning using a symmetric bilinear form for record linkage, Information Fusion 26 (2015) 144153. (here)  V. Torra, Y. Narukawa, M. Sugeno, On the fdivergence for nonadditive measures. Fuzzy Sets and Systems 292 (2016) 364379. (here)  Y. Narukawa, V. Torra, Fuzzy measure and probability distributions: distorted probabilities, IEEE Trans. on Fuzzy Systems, 13:5 (2005) 617  629.  V. Torra, The Weighted OWA operator, Intl. J. of Intel. Syst., 12 (1997) 153166. (here) Information retrieval and clustering:  V. Torra, S. Miyamoto, S. Lanau, Exploration of textual databases using a fuzzy hierarchical clustering algorithm in the GAMBAL system, Information Processing and Management, 41:3 (2005) 587598. Approximate reasoning:  V. Torra, K. Stokes, A formalization of record linkage and its application to data protection, Int. J. of Uncertainty, Fuzziness and KnowledgeBased Systems 20:6 (2012) 907919. (here)  V. Torra, A review on the construction of hierarchical fuzzy systems, Int. J. of Intelligent Systems, 17:5 (2002) 531543.  
Other  Information on projects, research stays, teaching activities, etc. : 