Towards Balancing Data Usefulness and Privacy Protection in K-Anonymisation. - Grigorios Loukides; Jianhua Shao 001 (CIT, 2006)

Speeding Up Clustering-Based k -Anonymisation Algorithms with Pre-partitioning. - Grigorios Loukides; Jianhua Shao 001 (BNCOD, 2007)

Clustering-Based K-Anonymisation Algorithms. - Grigorios Loukides; Jianhua Shao 001 (DEXA, 2007)

Capturing data usefulness and privacy protection in K-anonymisation. - Grigorios Loukides; Jianhua Shao 001 (SAC, 2007)

An Empirical Study of Utility Measures for k-Anonymisation. - Grigorios Loukides; Jianhua Shao 001 (BNCOD, 2008)

Data utility and privacy protection trade-off in k-anonymisation. - Grigorios Loukides; Jianhua Shao 001 (PAIS, 2008)

An Efficient Clustering Algorithm for k -Anonymisation. - Grigorios Loukides; Jianhua Shao 001 (J. Comput. Sci. Technol., 2008)

Data utility and privacy protection in data publishing. - Grigorios Loukides (2008)

Towards Preference-Constrained k-Anonymisation. - Grigorios Loukides; Achilles Tziatzios; Jianhua Shao 001 (DASFAA Workshops, 2009)

Privacy challenges and solutions in the social web. - Grigorios Loukides; Aris Gkoulalas-Divanis (ACM Crossroads, 2009)

Anonymizing Transaction Data to Eliminate Sensitive Inferences. - Grigorios Loukides; Aris Gkoulalas-Divanis; Jianhua Shao 001 (DEXA (1), 2010)

Beyond safe harbor: automatic discovery of health information de-identification policy alternatives. - Kathleen Benitez; Grigorios Loukides; Bradley A. Malin (IHI, 2010)

The disclosure of diagnosis codes can breach research participants' privacy. - Grigorios Loukides; Joshua C. Denny; Bradley A. Malin (J. Am. Medical Informatics Assoc., 2010)

PCTA: privacy-constrained clustering-based transaction data anonymization. - Aris Gkoulalas-Divanis; Grigorios Loukides (PAIS, 2011)

A heuristic method for deriving range-based classification rules. - Achilles Tziatzios; Jianhua Shao 001; Grigorios Loukides (FSKD, 2011)

Revisiting sequential pattern hiding to enhance utility. - Aris Gkoulalas-Divanis; Grigorios Loukides (KDD, 2011)

Preventing range disclosure in k-anonymised data. - Grigorios Loukides; Jianhua Shao 001 (Expert Syst. Appl., 2011)

COAT: COnstraint-based anonymization of transactions. - Grigorios Loukides; Aris Gkoulalas-Divanis; Bradley A. Malin (Knowl. Inf. Syst., 2011)

Utility-preserving transaction data anonymization with low information loss. - Grigorios Loukides; Aris Gkoulalas-Divanis (Expert Syst. Appl., 2012)

Assessing Disclosure Risk and Data Utility Trade-off in Transaction Data Anonymization. - Grigorios Loukides; Aris Gkoulalas-Divanis; Jianhua Shao 001 (Int. J. Softw. Informatics, 2012)

Utility-guided Clustering-based Transaction Data Anonymization. - Aris Gkoulalas-Divanis; Grigorios Loukides (Trans. Data Priv., 2012)

Anonymization of Longitudinal Electronic Medical Records. - Acar Tamersoy; Grigorios Loukides; Mehmet Ercan Nergiz; Yücel Saygin; Bradley A. Malin (IEEE Trans. Inf. Technol. Biomed., 2012)

Permutation-Based Sequential Pattern Hiding. - Robert Gwadera; Aris Gkoulalas-Divanis; Grigorios Loukides (ICDM, 2013)

Select-Organize-Anonymize: A Framework for Trajectory Data Anonymization. - Giorgos Poulis; Spiros Skiadopoulos; Grigorios Loukides; Aris Gkoulalas-Divanis (ICDM Workshops, 2013)

Hiding Sensitive Patterns from Sequence Databases: Research Challenges and Solutions. - Grigorios Loukides; Aris Gkoulalas-Divanis (MDM (2), 2013)

Distance-Based k^m-Anonymization of Trajectory Data. - Giorgos Poulis; Spiros Skiadopoulos; Grigorios Loukides; Aris Gkoulalas-Divanis (MDM (2), 2013)

Anonymizing Data with Relational and Transaction Attributes. - Giorgos Poulis; Grigorios Loukides; Aris Gkoulalas-Divanis; Spiros Skiadopoulos (ECML/PKDD (3), 2013)

Efficient and flexible anonymization of transaction data. - Grigorios Loukides; Aris Gkoulalas-Divanis; Jianhua Shao 001 (Knowl. Inf. Syst., 2013)

Utility-Aware Anonymization of Diagnosis Codes. - Grigorios Loukides; Aris Gkoulalas-Divanis (IEEE J. Biomed. Health Informatics, 2013)

Anonymization of Electronic Medical Records to Support Clinical Analysis - Aris Gkoulalas-Divanis; Grigorios Loukides (Springer, 2013)

SECRETA: A System for Evaluating and Comparing RElational and Transaction Anonymization algorithms. - Giorgos Poulis; Aris Gkoulalas-Divanis; Grigorios Loukides; Spiros Skiadopoulos; Christos Tryfonopoulos (EDBT, 2014)

Toward smarter healthcare: Anonymizing medical data to support research studies. - Aris Gkoulalas-Divanis; Grigorios Loukides; Jimeng Sun 001 (IBM J. Res. Dev., 2014)

Publishing data from electronic health records while preserving privacy: A survey of algorithms. - Aris Gkoulalas-Divanis; Grigorios Loukides; Jimeng Sun 001 (J. Biomed. Informatics, 2014)

Informatics methods in medical privacy. - Aris Gkoulalas-Divanis; Grigorios Loukides; Li Xiong 001; Jimeng Sun 001 (J. Biomed. Informatics, 2014)

Disassociation for electronic health record privacy. - Grigorios Loukides; John Liagouris; Aris Gkoulalas-Divanis; Manolis Terrovitis (J. Biomed. Informatics, 2014)

Apriori-based algorithms for km-anonymizing trajectory data. - Giorgos Poulis; Spiros Skiadopoulos; Grigorios Loukides; Aris Gkoulalas-Divanis (Trans. Data Priv., 2014)

Introduction to Medical Data Privacy. - Aris Gkoulalas-Divanis; Grigorios Loukides (Medical Data Privacy Handbook, 2015)

A Survey of Anonymization Algorithms for Electronic Health Records. - Aris Gkoulalas-Divanis; Grigorios Loukides (Medical Data Privacy Handbook, 2015)

Epilogue. - Aris Gkoulalas-Divanis; Grigorios Loukides (Medical Data Privacy Handbook, 2015)

Utility-Constrained Electronic Health Record Data Publishing Through Generalization and Disassociation. - Grigorios Loukides; John Liagouris; Aris Gkoulalas-Divanis; Manolis Terrovitis (Medical Data Privacy Handbook, 2015)

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

A Parallel Method for Scalable Anonymization of Transaction Data. - Neelam Memon; Grigorios Loukides; Jianhua Shao 001 (ISPDC, 2015)

Optimal event sequence sanitization. - Grigorios Loukides; Robert Gwadera (SDM, 2015)

Limiting the Diffusion of Information by a Selective PageRank-Preserving Approach. - Grigorios Loukides; Robert Gwadera (DSAA, 2016)

Cost-Effective Viral Marketing in the Latency Aware Independent Cascade Model. - Robert Gwadera; Grigorios Loukides (PAKDD (1), 2017)

Anonymizing datasets with demographics and diagnosis codes in the presence of utility constraints. - Giorgos Poulis; Grigorios Loukides; Spiros Skiadopoulos; Aris Gkoulalas-Divanis (J. Biomed. Informatics, 2017)

Approximating Private Set Union/Intersection Cardinality With Logarithmic Complexity. - Changyu Dong; Grigorios Loukides (IEEE Trans. Inf. Forensics Secur., 2017)

Towards String Sanitization. - Oluwole I. Ajala; Hayam Alamro; Costas S. Iliopoulos; Grigorios Loukides (AIAI (Workshops), 2018)

Preventing the diffusion of information to vulnerable users while preserving PageRank. - Grigorios Loukides; Robert Gwadera (Int. J. Data Sci. Anal., 2018)

Limiting the Influence to Vulnerable Users in Social Networks: A Ratio Perspective. - Huiping Chen; Grigorios Loukides; Jiashi Fan; Hau Chan (AINA, 2019)

String Sanitization: A Combinatorial Approach. - Giulia Bernardini 001; Huiping Chen; Alessio Conte; Roberto Grossi; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis; Giovanna Rosone (ECML/PKDD (1), 2019)

Location histogram privacy by sensitive location hiding and target histogram avoidance/resemblance (extended version). - Grigorios Loukides; George Theodorakopoulos 001 (CoRR, 2019)

Efficiently Detecting Web Spambots in a Temporally Annotated Sequence. - Hayam Alamro; Costas S. Iliopoulos; Grigorios Loukides (AINA, 2020)

Reverse-Safe Data Structures for Text Indexing. - Giulia Bernardini 001; Huiping Chen; Gabriele Fici; Grigorios Loukides; Solon P. Pissis (ALENEX, 2020)

String Sanitization Under Edit Distance. - Giulia Bernardini 001; Huiping Chen; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis; Leen Stougie; Michelle Sweering (CPM, 2020)

Hide and Mine in Strings: Hardness and Algorithms. - Giulia Bernardini 001; Alessio Conte; Garance Gourdel; Roberto Grossi; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis; Giulia Punzi; Leen Stougie; Michelle Sweering (ICDM, 2020)

Algorithms for Optimizing the Ratio of Monotone k-Submodular Functions. - Hau Chan; Grigorios Loukides; Zhenghui Su (ECML/PKDD (3), 2020)

How to Make Private Distributed Cardinality Estimation Practical, and Get Differential Privacy for Free. - Changhui Hu 002; Jin Li 002; Zheli Liu; Xiaojie Guo 004; Yu Wei 007; Xuan Guang; Grigorios Loukides; Changyu Dong (IACR Cryptol. ePrint Arch., 2020)

Clustering datasets with demographics and diagnosis codes. - Haodi Zhong; Grigorios Loukides; Robert Gwadera (J. Biomed. Informatics, 2020)

Location histogram privacy by Sensitive Location Hiding and Target Histogram Avoidance/Resemblance. - Grigorios Loukides; George Theodorakopoulos 001 (Knowl. Inf. Syst., 2020)

Overexposure-Aware Influence Maximization. - Grigorios Loukides; Robert Gwadera; Shing-Wan Chang (ACM Trans. Internet Techn., 2020)

Bidirectional String Anchors: A New String Sampling Mechanism. - Grigorios Loukides; Solon P. Pissis (ESA, 2021)

Beyond the BEST Theorem: Fast Assessment of Eulerian Trails. - Alessio Conte; Roberto Grossi; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis; Giulia Punzi (FCT, 2021)

Differentially Private String Sanitization for Frequency-Based Mining Tasks. - Huiping Chen; Changyu Dong; Liyue Fan; Grigorios Loukides; Solon P. Pissis; Leen Stougie (ICDM, 2021)

Pattern Masking for Dictionary Matching. - Panagiotis Charalampopoulos; Huiping Chen; Peter Christen; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis; Jakub Radoszewski (ISAAC, 2021)

On Breaking Truss-Based Communities. - Huiping Chen; Alessio Conte; Roberto Grossi; Grigorios Loukides; Solon P. Pissis; Michelle Sweering (KDD, 2021)

Maximizing Approximately k-Submodular Functions. - Leqian Zheng; Hau Chan; Grigorios Loukides; Minming Li (SDM, 2021)

Maximizing approximately k-submodular functions. - Leqian Zheng; Hau Chan; Grigorios Loukides; Minming Li (CoRR, 2021)

String Sampling with Bidirectional String Anchors. - Grigorios Loukides; Solon P. Pissis; Michelle Sweering (CoRR, 2021)

Reverse-Safe Text Indexing. - Giulia Bernardini 001; Huiping Chen; Gabriele Fici; Grigorios Loukides; Solon P. Pissis (ACM J. Exp. Algorithmics, 2021)

Influence maximization in the presence of vulnerable nodes: A ratio perspective. - Huiping Chen; Grigorios Loukides; Solon P. Pissis; Hau Chan (Theor. Comput. Sci., 2021)

Combinatorial Algorithms for String Sanitization. - Giulia Bernardini 001; Huiping Chen; Alessio Conte; Roberto Grossi; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis; Giovanna Rosone; Michelle Sweering (ACM Trans. Knowl. Discov. Data, 2021)

On Strings Having the Same Length- k Substrings. - Giulia Bernardini 001; Alessio Conte; Estéban Gabory; Roberto Grossi; Grigorios Loukides; Solon P. Pissis; Giulia Punzi; Michelle Sweering (CPM, 2022)

Making de Bruijn Graphs Eulerian. - Giulia Bernardini 001; Huiping Chen; Grigorios Loukides; Solon P. Pissis; Leen Stougie; Michelle Sweering (CPM, 2022)

Jaccard Median for Ego-network Segmentation. - Haodi Zhong; Grigorios Loukides; Alessio Conte; Solon P. Pissis (ICDM, 2022)

Differentially Private Top-k Selection via Canonical Lipschitz Mechanism. - Michael Shekelyan; Grigorios Loukides (CoRR, 2022)

Clustering sequence graphs. - Haodi Zhong; Grigorios Loukides; Solon P. Pissis (Data Knowl. Eng., 2022)

All-pairs suffix/prefix in optimal time using Aho-Corasick space. - Grigorios Loukides; Solon P. Pissis (Inf. Process. Lett., 2022)

Clustering Demographics and Sequences of Diagnosis Codes. - Haodi Zhong; Grigorios Loukides; Solon P. Pissis (IEEE J. Biomed. Health Informatics, 2022)

Suffix-Prefix Queries on a Dictionary. - Grigorios Loukides; Solon P. Pissis; Sharma V. Thankachan; Wiktor Zuba (CPM, 2023)

Heavy Nodes in a Small Neighborhood: Algorithms and Applications. - Huiping Chen; Grigorios Loukides; Robert Gwadera; Solon P. Pissis (SDM, 2023)

Frequency-Constrained Substring Complexity. - Solon P. Pissis; Michael Shekelyan; Chang Liu 035; Grigorios Loukides (SPIRE, 2023)

Text Indexing for Long Patterns: Anchors are All you Need. - Lorraine A. K. Ayad; Grigorios Loukides; Solon P. Pissis (Proc. VLDB Endow., 2023)

Hide and Mine in Strings: Hardness, Algorithms, and Experiments. - Giulia Bernardini 001; Alessio Conte; Garance Gourdel; Roberto Grossi; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis; Giulia Punzi; Leen Stougie; Michelle Sweering (IEEE Trans. Knowl. Data Eng., 2023)

Bidirectional String Anchors for Improved Text Indexing and Top-$K$ Similarity Search. - Grigorios Loukides; Solon P. Pissis; Michelle Sweering (IEEE Trans. Knowl. Data Eng., 2023)

Minimizing the Minimizers via Alphabet Reordering. - Hilde Verbeek 001; Lorraine A. K. Ayad; Grigorios Loukides; Solon P. Pissis (CPM, 2024)

Connecting de Bruijn Graphs. - Giulia Bernardini 001; Huiping Chen; Inge Li Gørtz; Christoffer Krogh; Grigorios Loukides; Solon P. Pissis; Leen Stougie; Michelle Sweering (CPM, 2024)

Space-Efficient Indexes for Uncertain Strings. - Estéban Gabory; Chang Liu 035; Grigorios Loukides; Solon P. Pissis; Wiktor Zuba (ICDE, 2024)

Scalable Order-Preserving Pattern Mining. - Ling Li 012; Wiktor Zuba; Grigorios Loukides; Solon P. Pissis; Maria Matsangidou (ICDM, 2024)

Sparse Suffix and LCP Array: Simple, Direct, Small, and Fast. - Lorraine A. K. Ayad; Grigorios Loukides; Solon P. Pissis; Hilde Verbeek 001 (LATIN (1), 2024)

Approximate Suffix-Prefix Dictionary Queries. - Wiktor Zuba; Grigorios Loukides; Solon P. Pissis; Sharma V. Thankachan (MFCS, 2024)

Utility-Oriented String Mining. - Giulia Bernardini 001; Huiping Chen; Alessio Conte; Roberto Grossi; Veronica Guerrini; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis (SDM, 2024)

Pattern Masking for Dictionary Matching: Theory and Practice. - Panagiotis Charalampopoulos; Huiping Chen; Peter Christen; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis; Jakub Radoszewski (Algorithmica, 2024)

On Breaking Truss-based and Core-based Communities. - Huiping Chen; Alessio Conte; Roberto Grossi; Grigorios Loukides; Solon P. Pissis; Michelle Sweering (ACM Trans. Knowl. Discov. Data, 2024)

Ego-Network Segmentation via (Weighted) Jaccard Median. - Haodi Zhong; Grigorios Loukides; Alessio Conte; Solon P. Pissis (IEEE Trans. Knowl. Data Eng., 2024)

On String and Graph Sanitization. - Giulia Bernardini 001; Huiping Chen; Grigorios Loukides; Solon P. Pissis (From Strings to Graphs, and Back Again, 2025)

Indexing Strings with Utilities. - Giulia Bernardini 001; Huiping Chen; Alessio Conte; Roberto Grossi; Veronica Guerrini; Grigorios Loukides; Nadia Pisanti; Solon P. Pissis (ICDE, 2025)

U-Index: A Universal Indexing Framework for Matching Long Patterns. - Lorraine A. K. Ayad; Gabriele Fici; Ragnar Groot Koerkamp; Grigorios Loukides; Rob Patro; Giulio Ermanno Pibiri; Solon P. Pissis (SEA, 2025)

Missing value replacement in strings and applications. - Giulia Bernardini 001; Chang Liu 035; Grigorios Loukides; Alberto Marchetti-Spaccamela; Solon P. Pissis; Leen Stougie; Michelle Sweering (Data Min. Knowl. Discov., 2025)

Heavy Nodes in a Small Neighborhood: Exact and Peeling Algorithms With Applications. - Ling Li 012; Hilde Verbeek 001; Huiping Chen; Grigorios Loukides; Robert Gwadera; Leen Stougie; Solon P. Pissis (IEEE Trans. Knowl. Data Eng., 2025)

Resilient Pattern Mining. - Pengxin Bian; Panagiotis Charalampopoulos; Lorraine A. K. Ayad; Manal Mohamed 001; Solon P. Pissis; Grigorios Loukides (CoRR, 2025)

Contextual Pattern Mining and Counting. - Ling Li 012; Daniel Gibney; Sharma V. Thankachan; Solon P. Pissis; Grigorios Loukides (CoRR, 2025)

Text indexing for long patterns using locally consistent anchors. - Lorraine A. K. Ayad; Grigorios Loukides; Solon P. Pissis (VLDB J., 2025)