Aris Gkoulalas-divanis  Aris Gkoulalas-divanis photo       

contact information

Technical Lead on Data Protection and Privacy, Watson Platform for Health
Cambridge Research Center, Cambridge, MA USA
  +1dash781dash346dash7477

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Professional Associations

Professional Associations:  ACM  |  ACM SIGKDD  |  BDVA  |  British Computer Society  |  IEEE   |  IEEE Computer Society  |  Sigma Xi


2017

Distance-Aware Encoding of Numerical Values for Privacy-Preserving Record Linkage
Karapiperis, Dimitrios and Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Data Engineering (ICDE), 2017 IEEE 33rd International Conference on, pp. 135--138
Abstract

Anonymizing datasets with demographics and diagnosis codes in the presence of utility constraints
Poulis, Giorgos and Loukides, Grigorios and Skiadopoulos, Spiros and Gkoulalas-Divanis, Aris
Journal of biomedical informatics65, 76--96, Elsevier, 2017
Abstract


2016

IPV: A System for Identifying Privacy Vulnerabilities in Datasets
Aris Gkoulalas-Divanis, Stefano Braghin
IBM Journal of Research and Development 60(7), 1-14, 2016

LSHDB: a parallel and distributed engine for record linkage and similarity search
Karapiperis, Dimitrios and Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Data Mining Workshops (ICDMW), 2016 IEEE 16th International Conference on, pp. 1--4
Abstract

FPVI: A scalable method for discovering privacy vulnerabilities in microdata
Aris Gkoulalas-Divanis and Stefano Braghin and Spyridon Antonatos
IEEE International Smart Cities Conference (ISC2), pp. 1-8, 2016


2015

Utility-Constrained Electronic Health Record Data Publishing Through Generalization and Disassociation
Loukides, Grigorios and Liagouris, John and Gkoulalas-Divanis, Aris and Terrovitis, Manolis
Medical Data Privacy Handbook, pp. 149--177, Springer, 2015

Introduction to Medical Data Privacy
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Medical Data Privacy Handbook, pp. 1--14, Springer, 2015

Efficient algorithms for identifying privacy vulnerabilities
Gkoulalas-Divanis, Aris and Braghin, Stefano
Smart Cities Conference (ISC2), 2015 IEEE First International, pp. 1--8

SECRETA: A Tool for Anonymizing Relational, Transaction and RT-Datasets
Poulis, Giorgos and Gkoulalas-Divanis, Aris and Loukides, Grigorios and Skiadopoulos, Spiros and Tryfonopoulos, Christos
Medical Data Privacy Handbook, pp. 83--109, Springer, 2015

A Survey of Anonymization Algorithms for Electronic Health Records
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Medical Data Privacy Handbook, pp. 17--34, Springer, 2015

Medical Data Privacy Handbook
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Divanis, G Loukides - 2015 - Springer, Springer


2014

Informatics methods in medical privacy
Aris Gkoulalas-Divanis, Grigorios Loukides, Li Xiong, Jimeng Sun, Ada Wai-Chee Fu, Ke Wang, Raymond Chi-Wing Wong, Jia Wang, Minhao Jiang, Sheng Yu, others
Journal of biomedical informatics50, 1--3, Academic Press, 2014

Informatics methods in medical privacy.
Gkoulalas-Divanis, Aris and Loukides, Grigorios and Xiong, Li and Sun, Jimeng
Journal of biomedical informatics50, 1, 2014

Toward smarter healthcare: Anonymizing medical data to support research studies
Gkoulalas-Divanis, Aris and Loukides, Grigorios and Sun, Jian
IBM Journal of Research and Development 58(1), 9--1, IBM, 2014

Privacy protection in open information management platforms
Gkoulalas-Divanis, Aris and Mac Aonghusa, Pol
IBM Journal of Research and Development 58(1), 2--1, IBM, 2014

Privacy issues in association rule mining
Gkoulalas-Divanis, Aris and Haritsa, Jayant and Kantarcioglu, Murat
Frequent Pattern Mining, pp. 369--401, Springer, 2014

Apriori-based algorithms for km-anonymizing trajectory data.
Poulis, Giorgos and Skiadopoulos, Spiros and Loukides, Grigorios and Gkoulalas-Divanis, Aris
Transactions on Data Privacy 7(2), 165--194, 2014

Large-Scale Data Analytics
Gkoulalas-Divanis, Aris and Labbi, Abderrahim
Divanis, A Labbi - 2014 - Springer, Springer

SECRETA: a system for evaluating and comparing relational and transaction anonymization algorithms
Poulis, Giorgos and Gkoulalas-Divanis, Aris and Loukides, Grigorios and Skiadopoulos, Spiros and Tryfonopoulos, Christos
Divanis, G Loukides… - 2014 - orca.cf.ac.uk, OpenProceedings. org, University of Konstanz

Disassociation for electronic health record privacy
Loukides, Grigorios and Liagouris, John and Gkoulalas-Divanis, Aris and Terrovitis, Manolis
Journal of biomedical informatics50, 46--61, Elsevier, 2014

Spud—semantic processing of urban data
Kotoulas, Spyros and Lopez, Vanessa and Lloyd, Raymond and Sbodio, Marco Luca and Lecue, Freddy and Stephenson, Martin and Daly, Elizabeth and Bicer, Veli and Gkoulalas-Divanis, Aris and Di Lorenzo, Giusy and others
Web Semantics: Science, Services and Agents on the World Wide Web24, 11--17, Elsevier, 2014

Predicting changes in hypertension control using electronic health records from a chronic disease management program
Sun, Jimeng and McNaughton, Candace D and Zhang, Ping and Perer, Adam and Gkoulalas-Divanis, Aris and Denny, Joshua C and Kirby, Jacqueline and Lasko, Thomas and Saip, Alexander and Malin, Bradley A
Journal of the American Medical Informatics Association 21(2), 337--344, The Oxford University Press, 2014

Publishing data from electronic health records while preserving privacy: a survey of algorithms
Gkoulalas-Divanis, Aris and Loukides, Grigorios and Sun, Jimeng
Journal of biomedical informatics50, 4--19, Elsevier, 2014


2013

Distance-based k^{} m-anonymization of trajectory data
Poulis, Giorgos and Skiadopoulos, Spiros and Loukides, Grigorios and Gkoulalas-Divanis, Aris
2013 IEEE 14th International Conference on Mobile Data Management, pp. 57--62

Privacy-Aware Querying in Semantically-Enriched Trajectory Databases
Kopanaki, Despina and Pelekis, Nikos and Sideridis, Stelios and Vodas, Marios and Gkoulalas-Divanis, Aris and Theodoridis, Yannis
UNIPI-InfoLab-TR-2013-05. Available at: http://infolab. cs. unipi. gr/technical\_report s/TR-2013-05. pdf Category4

Re-identification of Clinical Data Through Diagnosis Information
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Anonymization of Electronic Medical Records to Support Clinical Analysis, pp. 31--38, Springer, 2013

Case Study on Electronic Medical Records Data
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Anonymization of Electronic Medical Records to Support Clinical Analysis, pp. 55--64, Springer, 2013

Preventing Re-identification While Supporting GWAS
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Anonymization of Electronic Medical Records to Support Clinical Analysis, pp. 39--53, Springer, 2013

Overview of Patient Data Anonymization
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Anonymization of Electronic Medical Records to Support Clinical Analysis, pp. 9--30, Springer, 2013

Hiding sensitive patterns from sequence databases: research challenges and solutions
Loukides, Grigorios and Gkoulalas-Divanis, Aris
2013 IEEE 14th International Conference on Mobile Data Management, pp. 45--50

Permutation-based sequential pattern hiding
Gwadera, Robert and Gkoulalas-Divanis, Aris and Loukides, Grigorios
2013 IEEE 13th International Conference on Data Mining, pp. 241--250

Distance-based k^{} m-anonymization of trajectory data
Poulis, Giorgos and Skiadopoulos, Spiros and Loukides, Grigorios and Gkoulalas-Divanis, Aris
2013 IEEE 14th International Conference on Mobile Data Management, pp. 57--62

Utility-aware anonymization of diagnosis codes
Loukides, Grigorios and Gkoulalas-Divanis, Aris
IEEE journal of biomedical and health informatics 17(1), 60--70, IEEE, 2013

Report from Dagstuhl: the liberation of mobile location data and its implications for privacy research
Andrienko, Gennady and Gkoulalas-Divanis, Aris and Gruteser, Marco and Kopp, Christine and Liebig, Thomas and Rechert, Klaus
ACM SIGMOBILE Mobile Computing and Communications Review 17(2), 7--18, ACM, 2013

Efficient and flexible anonymization of transaction data
Loukides, Grigorios and Gkoulalas-Divanis, Aris and Shao, Jianhua
Knowledge and information systems 36(1), 153--210, Springer, 2013

Anonymizing data with relational and transaction attributes
Poulis, Giorgos and Loukides, Grigorios and Gkoulalas-Divanis, Aris and Skiadopoulos, Spiros
Joint European Conference on Machine Learning and Knowledge Discovery in Databases, pp. 353--369, 2013

Semantic trajectories modeling and analysis
Parent, Christine and Spaccapietra, Stefano and Renso, Chiara and Andrienko, Gennady and Andrienko, Natalia and Bogorny, Vania and Damiani, Maria Luisa and Gkoulalas-Divanis, Aris and Macedo, Jose and Pelekis, Nikos and others
ACM Computing Surveys (CSUR) 45(4), 42, ACM, 2013

Select-Organize-Anonymize: A Framework for Trajectory Data Anonymization
G. Poulis, S. Skiadopoulos, G. Loukides, A. Gkoulalas-Divanis
Privacy Aspects of Data Mining (PADM), 2013


2012

QuerioCity: Accessing the Information of a City
Spyros Kotoulas, Vanessa Lopez, Marco Luca Sbodio, Martin Stephenson, Raymond Lloyd, Aris Gkoulalas-Divanis, Pol Mac Aonghusa
Semantic Cities workshop at the 26th AAAI 2012 Conference

Privacy-Preserving Medical Data Sharing
Gkoulalas-Divanis, Aris and Loukides, Grigorios
SIAM Data Mining, 2012

A framework for mobility pattern mining and privacy-aware querying of trajectory data
Kopanaki, Despina and Pelekis, Nikos and Gkoulalas-Divanis, Aris and Vodas, Marios and Theodoridis, Yannis
Proceedings of the 11th Hellenic Data Management Symposium (HDMS’12), Chania, Greece, 2012

EWNI: efficient anonymization of vulnerable individuals in social networks
Nagle, Frank and Singh, Lisa and Gkoulalas-Divanis, Aris
Pacific-Asia Conference on Knowledge Discovery and Data Mining, pp. 359--370, 2012

Anonymization of electronic medical records to support clinical analysis
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Divanis, G Loukides - 2012 - books.google.com, Springer Science & Business Media

Private-HERMES: a benchmark framework for privacy-preserving mobility data querying and mining methods
Pelekis, Nikos and Gkoulalas-Divanis, Aris and Vodas, Marios and Plemenos, Anargyros and Kopanaki, Despina and Theodoridis, Yannis
Proceedings of the 15th International Conference on Extending Database Technology, pp. 598--601, 2012

Utility-preserving transaction data anonymization with low information loss
Loukides, Grigorios and Gkoulalas-Divanis, Aris
Expert systems with applications 39(10), 9764--9777, Elsevier, 2012

Utility-guided Clustering-based Transaction Data Anonymization.
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Transactions on Data Privacy 5(1), 223--251, 2012

Queriocity: A linked data platform for urban information management
Lopez, Vanessa and Kotoulas, Spyros and Sbodio, Marco Luca and Stephenson, Martin and Gkoulalas-Divanis, Aris and Mac Aonghusa, P{'o}l
International Semantic Web Conference, pp. 148--163, 2012


2011

Privacy and Security Issues in Data Mining and Machine Learning
Gkoulalas-Divanis, Christos Dimitrakakis Aris and Verykios, Aikaterini Mitrokotsa Vassilios S and Saygin, Y{"u}cel
Divanis, AMVS Verykios, Y Saygin - 2011 - Springer, Springer

A publication process model to enable privacy-aware data sharing
Gkoulalas-Divanis, Aris and Cope, Eric W
IBM Journal of Research and Development 55(5), 8--1, IBM, 2011

Privacy in mobility data mining.
Gkoulalas-Divanis, Aris and Saygin, Y{"u}cel and Pedreschi, Dino
SIGKDD Explorations 13(1), 4--5, 2011

Privacy Challenges and Solutions for Medical Data Sharing
Gkoulalas-Divanis, Aris and LOUKIDES, G
ECML PKDD, 2011

On balancing disclosure risk and data utility in transaction data sharing using RU confidentiality map
Loukides, Grigorios and Gkoulalas-Divanis, Aris and Shao, Jianhua
Joint UNECE/Eurostat work session on statistical data confidentiality19, 2011

Medical data sharing: privacy challenges and solutions
Gkoulalas-Divanis, Aris and Loukides, Grigorios
The European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases(ECML PKDD), Athens, Greece, 2011

Concealing the position of individuals in location-based services
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Operational Research 11(2), 201--214, Springer, 2011

PCTA: privacy-constrained clustering-based transaction data anonymization
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Proceedings of the 4th International Workshop on Privacy and Anonymity in the Information Society, pp. 5, 2011

Privacy-aware querying over sensitive trajectory data
Pelekis, Nikos and Gkoulalas-Divanis, Aris and Vodas, Marios and Kopanaki, Despina and Theodoridis, Yannis
Proceedings of the 20th ACM international conference on Information and knowledge management, pp. 895--904, 2011

Revisiting sequential pattern hiding to enhance utility
Gkoulalas-Divanis, Aris and Loukides, Grigorios
Proceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data mining, pp. 1316--1324, 2011

COAT: Constraint-based anonymization of transactions
Loukides, Grigorios and Gkoulalas-Divanis, Aris and Malin, Bradley
Knowledge and Information Systems 28(2), 251--282, Springer, 2011


2010

Inline Algorithm
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 71--82, Springer, 2010

Hybrid Algorithm
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 93--118, Springer, 2010

Parallelization Framework for Exact Hiding
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 119--130, Springer, 2010

Other Knowledge Hiding Methodologies
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 21--24, Springer, 2010

Hestia: Historically-enabled spatio-temporal information anonymity
Gkoulalas-Divanis, A and Verykios, VS
Divanis, VS Verykios - 2010 - ir.lib.uth.gr

Border Revision for Knowledge Hiding
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 41--46, Springer, 2010

Distortion Schemes
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 29--33, Springer, 2010

Blocking Schemes
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 35--36, Springer, 2010

Max-Min Algorithms
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 53--58, Springer, 2010

Quantifying the Privacy of Exact Hiding Algorithms
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 131--134, Springer, 2010

Two-Phase Iterative Algorithm
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 83--92, Springer, 2010

BBA Algorithm
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 47--52, Springer, 2010

From itemsets through trajectories to location based services: a knowledge hiding privacy approach
Gkoulalas-Divanis, Aris
ACM SIGKDD Explorations Newsletter 11(2), 61--62, ACM, 2010

Classes of Association Rule Hiding Methodologies
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Association Rule Hiding for Data Mining, pp. 17--20, Springer, 2010

Privacy-preserving publication of diagnosis codes for effective biomedical analysis
Loukides, Grigorios and Gkoulalas-Divanis, Aris and Malin, Bradley
Proceedings of the 10th IEEE International Conference on Information Technology and Applications in Biomedicine, pp. 1--6, 2010

Privacy preserving data mining: How far can we go
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Data mining in private and public sectors: Organizational and governmental applications, 125--141, 2010

Anonymizing transaction data to eliminate sensitive inferences
Loukides, Grigorios and Gkoulalas-Divanis, Aris and Shao, Jianhua
International Conference on Database and Expert Systems Applications, pp. 400--415, 2010

Providing k-anonymity in location based services
Gkoulalas-Divanis, Aris and Kalnis, Panos and Verykios, Vassilios S
ACM SIGKDD explorations newsletter 12(1), 3--10, ACM, 2010

Association rule hiding for data mining
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Divanis, VS Verykios - 2010 - books.google.com, Springer Science & Business Media

Anonymization of electronic medical records for validating genome-wide association studies
Loukides, Grigorios and Gkoulalas-Divanis, Aris and Malin, Bradley
Proceedings of the National Academy of Sciences 107(17), 7898--7903, National Acad Sciences, 2010


2009

Towards utility-driven anonymization of transactions
Loukides, Grigorios and Gkoulalas-Divanis, Aris and Malin, Bradley
arXiv preprint arXiv:0912.2548, 2009

Exact knowledge hiding in transactional databases
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
International Journal on Artificial Intelligence Tools 18(01), 17--37, World Scientific, 2009

Reconstruction-based classification rule hiding through controlled data modification
Katsarou, Aliki and Aris, Gkoulalas-Divanis and Verykios, Vassilios S
IFIP International Conference on Artificial Intelligence Applications and Innovations, pp. 449--458, 2009

Privacy in trajectory data
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Social Implications of Data Mining and Information Privacy: Interdisciplinary Frameworks and Solutions: Interdisciplinary Frameworks and Solutions, 199, IGI Global, 2009

PLOT: Privacy in location based services: An open-ended toolbox
Gkoulalas-Divanis, Aris and Verykios, Vassilios S and Eleftheriou, Dimitrios
2009 Tenth International Conference on Mobile Data Management: Systems, Services and Middleware, pp. 62--71

Privacy challenges and solutions in the social web
Loukides, Grigorios and Gkoulalas-Divanis, Aris
Crossroads 16(2), 14--18, ACM, 2009

An overview of privacy preserving data mining
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Crossroads 15(4), 6, ACM, 2009

A network aware privacy model for online requests in trajectory data
Gkoulalas-Divanis, Aris and Verykios, Vassilios S and Bozanis, Panayiotis
Data & Knowledge Engineering 68(4), 431--452, Elsevier, 2009

Identifying Unsafe Routes for Network-Based Trajectory Privacy.
Gkoulalas-Divanis, Aris and Verykios, Vassilios S and Mokbel, Mohamed F
SDM, pp. 942--953, 2009

Hiding sensitive knowledge without side effects
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Knowledge and Information Systems 20(3), 263--299, Springer, 2009

Exact knowledge hiding through database extension
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
IEEE Transactions on Knowledge and Data Engineering 21(5), 699--713, IEEE, 2009


2008

A free terrain model for trajectory K--anonymity
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
International Conference on Database and Expert Systems Applications, pp. 49--56, 2008

A parallelization framework for exact knowledge hiding in transactional databases
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
IFIP International Information Security Conference, pp. 349--363, 2008

Privacy and security in spatiotemporal data and trajectories
Verykios, Vassilios S and Damiani, Maria Luisa and Gkoulalas-Divanis, Aris
Mobility, data mining and privacy, pp. 213--240, Springer, 2008

Privacy in spatiotemporal data mining
Bonchi, Francesco and Saygin, Y{"u}cel and Verykios, Vassilios S and Atzori, Maurizio and Gkoulalas-Divanis, Aris and Kaya, Selim Volkan and Sava{c{s}}, E
Mobility, Data Mining and Privacy, pp. 297--333, Springer, 2008

A privacy-aware trajectory tracking query engine
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
ACM SIGKDD Explorations Newsletter 10(1), 40--49, ACM, 2008

A free terrain model for trajectory K--anonymity
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
International Conference on Database and Expert Systems Applications, pp. 49--56, 2008

A survey of association rule hiding methods for privacy
Verykios, Vassilios S and Gkoulalas-Divanis, Aris
Privacy-Preserving Data Mining, pp. 267--289, Springer, 2008


2007

A hybrid approach to frequent itemset hiding
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
19th IEEE International Conference on Tools with Artificial Intelligence (ICTAI 2007), pp. 297--304

A k-anonymity model for spatio-temporal data
Zacharouli, Polixeni and Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Data Engineering Workshop, 2007 IEEE 23rd International Conference on, pp. 555--564


2006

An integer programming approach for frequent itemset hiding
Gkoulalas-Divanis, Aris and Verykios, Vassilios S
Proceedings of the 15th ACM international conference on Information and knowledge management, pp. 748--757, 2006