Grigorios Loukides

119 papers A* 11A 6B 14C 4Misc 1Journal 57Unranked 18

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Fast Assessment of Eulerian Trails in Graphs with Applications. ACM Trans. Knowl. Discov. Data Alessio Conte, Roberto Grossi, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Giulia Punzi
2025	J	`jnl`	Contextual Pattern Mining and Counting. CoRR Ling Li, Daniel Gibney, Sharma V. Thankachan, Solon P. Pissis, Grigorios Loukides
2025	J	`jnl`	Heavy Nodes in a Small Neighborhood: Exact and Peeling Algorithms With Applications. IEEE Trans. Knowl. Data Eng. Ling Li, Hilde Verbeek, Huiping Chen, Grigorios Loukides, Robert Gwadera, Leen Stougie, Solon P. Pissis
2025	A*	`conf`	Indexing Strings with Utilities. ICDE Giulia Bernardini, Huiping Chen, Alessio Conte, Roberto Grossi, Veronica Guerrini, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis
2025	J	`jnl`	Indexing Strings with Utilities. CoRR Giulia Bernardini, Huiping Chen, Alessio Conte, Roberto Grossi, Veronica Guerrini, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis
2025	J	`jnl`	Missing value replacement in strings and applications. Data Min. Knowl. Discov. Giulia Bernardini, Chang Liu, Grigorios Loukides, Alberto Marchetti-Spaccamela, Solon P. Pissis, Leen Stougie, Michelle Sweering
2025	—	`conf`	On String and Graph Sanitization. From Strings to Graphs, and Back Again Giulia Bernardini, Huiping Chen, Grigorios Loukides, Solon P. Pissis
2025	A*	`conf`	Resilient Pattern Mining. ICDM Pengxin Bian, Panagiotis Charalampopoulos, Lorraine A. K. Ayad, Manal Mohamed, Solon P. Pissis, Grigorios Loukides
2025	J	`jnl`	Resilient Pattern Mining. CoRR Pengxin Bian, Panagiotis Charalampopoulos, Lorraine A. K. Ayad, Manal Mohamed, Solon P. Pissis, Grigorios Loukides
2025	J	`jnl`	Subtree Mode and Applications. CoRR Jialong Zhou, Ben Bals, Matei Tinca, Ai Guan, Panagiotis Charalampopoulos, Grigorios Loukides, Solon P. Pissis
2025	J	`jnl`	Text indexing for long patterns using locally consistent anchors. VLDB J. Lorraine A. K. Ayad, Grigorios Loukides, Solon P. Pissis
2025	B	`conf`	U-Index: A Universal Indexing Framework for Matching Long Patterns. SEA Lorraine A. K. Ayad, Gabriele Fici, Ragnar Groot Koerkamp, Grigorios Loukides, Rob Patro, Giulio Ermanno Pibiri, Solon P. Pissis
2025	J	`jnl`	U-index: A Universal Indexing Framework for Matching Long Patterns. CoRR Lorraine A. K. Ayad, Gabriele Fici, Ragnar Groot Koerkamp, Grigorios Loukides, Rob Patro, Giulio Ermanno Pibiri, Solon P. Pissis
2024	B	`conf`	Approximate Suffix-Prefix Dictionary Queries. MFCS Wiktor Zuba, Grigorios Loukides, Solon P. Pissis, Sharma V. Thankachan
2024	B	`conf`	Connecting de Bruijn Graphs. CPM Giulia Bernardini, Huiping Chen, Inge Li Gørtz, Christoffer Krogh, Grigorios Loukides, Solon P. Pissis, Leen Stougie, Michelle Sweering
2024	J	`jnl`	Ego-Network Segmentation via (Weighted) Jaccard Median. IEEE Trans. Knowl. Data Eng. Haodi Zhong, Grigorios Loukides, Alessio Conte, Solon P. Pissis
2024	B	`conf`	Minimizing the Minimizers via Alphabet Reordering. CPM Hilde Verbeek, Lorraine A. K. Ayad, Grigorios Loukides, Solon P. Pissis
2024	J	`jnl`	Minimizing the Minimizers via Alphabet Reordering. CoRR Hilde Verbeek, Lorraine A. K. Ayad, Grigorios Loukides, Solon P. Pissis
2024	J	`jnl`	On Breaking Truss-based and Core-based Communities. ACM Trans. Knowl. Discov. Data Huiping Chen, Alessio Conte, Roberto Grossi, Grigorios Loukides, Solon P. Pissis, Michelle Sweering
2024	J	`jnl`	Pattern Masking for Dictionary Matching: Theory and Practice. Algorithmica Panagiotis Charalampopoulos, Huiping Chen, Peter Christen, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Jakub Radoszewski
2024	A*	`conf`	Scalable Order-Preserving Pattern Mining. ICDM Ling Li, Wiktor Zuba, Grigorios Loukides, Solon P. Pissis, Maria Matsangidou
2024	J	`jnl`	Scalable Order-Preserving Pattern Mining. CoRR Ling Li, Wiktor Zuba, Grigorios Loukides, Solon P. Pissis, Maria Matsangidou
2024	A*	`conf`	Space-Efficient Indexes for Uncertain Strings. ICDE Estéban Gabory, Chang Liu, Grigorios Loukides, Solon P. Pissis, Wiktor Zuba
2024	J	`jnl`	Space-Efficient Indexes for Uncertain Strings. CoRR Estéban Gabory, Chang Liu, Grigorios Loukides, Solon P. Pissis, Wiktor Zuba
2024	—	`conf`	Sparse Suffix and LCP Array: Simple, Direct, Small, and Fast. LATIN (1) Lorraine A. K. Ayad, Grigorios Loukides, Solon P. Pissis, Hilde Verbeek
2024	J	`jnl`	Text Indexing for Long Patterns using Locally Consistent Anchors. CoRR Lorraine A. K. Ayad, Grigorios Loukides, Solon P. Pissis
2024	A	`conf`	Utility-Oriented String Mining. SDM Giulia Bernardini, Huiping Chen, Alessio Conte, Roberto Grossi, Veronica Guerrini, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis
2023	J	`jnl`	Bidirectional String Anchors for Improved Text Indexing and Top-$K$ Similarity Search. IEEE Trans. Knowl. Data Eng. Grigorios Loukides, Solon P. Pissis, Michelle Sweering
2023	C	`conf`	Frequency-Constrained Substring Complexity. SPIRE Solon P. Pissis, Michael Shekelyan, Chang Liu, Grigorios Loukides
2023	A	`conf`	Heavy Nodes in a Small Neighborhood: Algorithms and Applications. SDM Huiping Chen, Grigorios Loukides, Robert Gwadera, Solon P. Pissis
2023	J	`jnl`	Hide and Mine in Strings: Hardness, Algorithms, and Experiments. IEEE Trans. Knowl. Data Eng. Giulia Bernardini, Alessio Conte, Garance Gourdel, Roberto Grossi, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Giulia Punzi, Leen Stougie, Michelle Sweering
2023	J	`jnl`	Sparse Suffix and LCP Array: Simple, Direct, Small, and Fast. CoRR Lorraine A. K. Ayad, Grigorios Loukides, Solon P. Pissis, Hilde Verbeek
2023	B	`conf`	Suffix-Prefix Queries on a Dictionary. CPM Grigorios Loukides, Solon P. Pissis, Sharma V. Thankachan, Wiktor Zuba
2023	J	`jnl`	Text Indexing for Long Patterns: Anchors are All you Need. Proc. VLDB Endow. Lorraine A. K. Ayad, Grigorios Loukides, Solon P. Pissis
2022	J	`jnl`	All-pairs suffix/prefix in optimal time using Aho-Corasick space. Inf. Process. Lett. Grigorios Loukides, Solon P. Pissis
2022	J	`jnl`	Clustering Demographics and Sequences of Diagnosis Codes. IEEE J. Biomed. Health Informatics Haodi Zhong, Grigorios Loukides, Solon P. Pissis
2022	J	`jnl`	Clustering sequence graphs. Data Knowl. Eng. Haodi Zhong, Grigorios Loukides, Solon P. Pissis
2022	J	`jnl`	Differentially Private Top-k Selection via Canonical Lipschitz Mechanism. CoRR Michael Shekelyan, Grigorios Loukides
2022	A*	`conf`	Jaccard Median for Ego-network Segmentation. ICDM Haodi Zhong, Grigorios Loukides, Alessio Conte, Solon P. Pissis
2022	B	`conf`	Making de Bruijn Graphs Eulerian. CPM Giulia Bernardini, Huiping Chen, Grigorios Loukides, Solon P. Pissis, Leen Stougie, Michelle Sweering
2022	B	`conf`	On Strings Having the Same Length- k Substrings. CPM Giulia Bernardini, Alessio Conte, Estéban Gabory, Roberto Grossi, Grigorios Loukides, Solon P. Pissis, Giulia Punzi, Michelle Sweering
2021	B	`conf`	Beyond the BEST Theorem: Fast Assessment of Eulerian Trails. FCT Alessio Conte, Roberto Grossi, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Giulia Punzi
2021	A	`conf`	Bidirectional String Anchors: A New String Sampling Mechanism. ESA Grigorios Loukides, Solon P. Pissis
2021	J	`jnl`	Combinatorial Algorithms for String Sanitization. ACM Trans. Knowl. Discov. Data Giulia Bernardini, Huiping Chen, Alessio Conte, Roberto Grossi, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Giovanna Rosone, Michelle Sweering
2021	A*	`conf`	Differentially Private String Sanitization for Frequency-Based Mining Tasks. ICDM Huiping Chen, Changyu Dong, Liyue Fan, Grigorios Loukides, Solon P. Pissis, Leen Stougie
2021	A*	`conf`	How to Make Private Distributed Cardinality Estimation Practical, and Get Differential Privacy for Free. USENIX Security Symposium Changhui Hu, Jin Li, Zheli Liu, Xiaojie Guo, Yu Wei, Xuan Guang, Grigorios Loukides, Changyu Dong
2021	J	`jnl`	Influence maximization in the presence of vulnerable nodes: A ratio perspective. Theor. Comput. Sci. Huiping Chen, Grigorios Loukides, Solon P. Pissis, Hau Chan
2021	A	`conf`	Maximizing Approximately SDM Leqian Zheng, Hau Chan, Grigorios Loukides, Minming Li
2021	J	`jnl`	Maximizing approximately k-submodular functions. CoRR Leqian Zheng, Hau Chan, Grigorios Loukides, Minming Li
2021	A*	`conf`	On Breaking Truss-Based Communities. KDD Huiping Chen, Alessio Conte, Roberto Grossi, Grigorios Loukides, Solon P. Pissis, Michelle Sweering
2021	B	`conf`	Pattern Masking for Dictionary Matching. ISAAC Panagiotis Charalampopoulos, Huiping Chen, Peter Christen, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Jakub Radoszewski
2021	J	`jnl`	Reverse-Safe Text Indexing. ACM J. Exp. Algorithmics Giulia Bernardini, Huiping Chen, Gabriele Fici, Grigorios Loukides, Solon P. Pissis
2021	J	`jnl`	String Sampling with Bidirectional String Anchors. CoRR Grigorios Loukides, Solon P. Pissis, Michelle Sweering
2020	—	`conf`	Algorithms for Optimizing the Ratio of Monotone k-Submodular Functions. ECML/PKDD (3) Hau Chan, Grigorios Loukides, Zhenghui Su
2020	J	`jnl`	Clustering datasets with demographics and diagnosis codes. J. Biomed. Informatics Haodi Zhong, Grigorios Loukides, Robert Gwadera
2020	B	`conf`	Efficiently Detecting Web Spambots in a Temporally Annotated Sequence. AINA Hayam Alamro, Costas S. Iliopoulos, Grigorios Loukides
2020	A*	`conf`	Hide and Mine in Strings: Hardness and Algorithms. ICDM Giulia Bernardini, Alessio Conte, Garance Gourdel, Roberto Grossi, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Giulia Punzi, Leen Stougie, Michelle Sweering
2020	J	`jnl`	How to Make Private Distributed Cardinality Estimation Practical, and Get Differential Privacy for Free. IACR Cryptol. ePrint Arch. Changhui Hu, Jin Li, Zheli Liu, Xiaojie Guo, Yu Wei, Xuan Guang, Grigorios Loukides, Changyu Dong
2020	J	`jnl`	Location histogram privacy by Sensitive Location Hiding and Target Histogram Avoidance/Resemblance. Knowl. Inf. Syst. Grigorios Loukides, George Theodorakopoulos
2020	J	`jnl`	Overexposure-Aware Influence Maximization. ACM Trans. Internet Techn. Grigorios Loukides, Robert Gwadera, Shing-Wan Chang
2020	J	`jnl`	Pattern Masking for Dictionary Matching. CoRR Panagiotis Charalampopoulos, Huiping Chen, Peter Christen, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Jakub Radoszewski
2020	A	`conf`	Reverse-Safe Data Structures for Text Indexing. ALENEX Giulia Bernardini, Huiping Chen, Gabriele Fici, Grigorios Loukides, Solon P. Pissis
2020	B	`conf`	String Sanitization Under Edit Distance. CPM Giulia Bernardini, Huiping Chen, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Leen Stougie, Michelle Sweering
2019	B	`conf`	Limiting the Influence to Vulnerable Users in Social Networks: A Ratio Perspective. AINA Huiping Chen, Grigorios Loukides, Jiashi Fan, Hau Chan
2019	J	`jnl`	Location histogram privacy by sensitive location hiding and target histogram avoidance/resemblance (extended version). CoRR Grigorios Loukides, George Theodorakopoulos
2019	—	`conf`	String Sanitization: A Combinatorial Approach. ECML/PKDD (1) Giulia Bernardini, Huiping Chen, Alessio Conte, Roberto Grossi, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Giovanna Rosone
2019	J	`jnl`	String Sanitization: A Combinatorial Approach. CoRR Giulia Bernardini, Huiping Chen, Alessio Conte, Roberto Grossi, Grigorios Loukides, Nadia Pisanti, Solon P. Pissis, Giovanna Rosone
2018	J	`jnl`	Approximating Private Set Union/Intersection Cardinality with Logarithmic Complexity. IACR Cryptol. ePrint Arch. Changyu Dong, Grigorios Loukides
2018	J	`jnl`	Preventing the diffusion of information to vulnerable users while preserving PageRank. Int. J. Data Sci. Anal. Grigorios Loukides, Robert Gwadera
2018	—	`conf`	Towards String Sanitization. AIAI (Workshops) Oluwole I. Ajala, Hayam Alamro, Costas S. Iliopoulos, Grigorios Loukides
2017	J	`jnl`	Anonymizing datasets with demographics and diagnosis codes in the presence of utility constraints. J. Biomed. Informatics Giorgos Poulis, Grigorios Loukides, Spiros Skiadopoulos, Aris Gkoulalas-Divanis
2017	J	`jnl`	Approximating Private Set Union/Intersection Cardinality With Logarithmic Complexity. IEEE Trans. Inf. Forensics Secur. Changyu Dong, Grigorios Loukides
2017	—	`conf`	Cost-Effective Viral Marketing in the Latency Aware Independent Cascade Model. PAKDD (1) Robert Gwadera, Grigorios Loukides
2016	B	`conf`	Limiting the Diffusion of Information by a Selective PageRank-Preserving Approach. DSAA Grigorios Loukides, Robert Gwadera
2015	C	`conf`	A Parallel Method for Scalable Anonymization of Transaction Data. ISPDC Neelam Memon, Grigorios Loukides, Jianhua Shao
2015	—	`ch.`	A Survey of Anonymization Algorithms for Electronic Health Records. Medical Data Privacy Handbook Aris Gkoulalas-Divanis, Grigorios Loukides
2015	—	`ch.`	Epilogue. Medical Data Privacy Handbook Aris Gkoulalas-Divanis, Grigorios Loukides
2015	—	`ch.`	Introduction to Medical Data Privacy. Medical Data Privacy Handbook Aris Gkoulalas-Divanis, Grigorios Loukides
2015	—	`book`	Medical Data Privacy Handbook Aris Gkoulalas-Divanis, Grigorios Loukides
2015	A	`conf`	Optimal event sequence sanitization. SDM Grigorios Loukides, Robert Gwadera
2015	—	`ch.`	SECRETA: A Tool for Anonymizing Relational, Transaction and RT-Datasets. Medical Data Privacy Handbook Giorgos Poulis, Aris Gkoulalas-Divanis, Grigorios Loukides, Spiros Skiadopoulos, Christos Tryfonopoulos
2015	—	`ch.`	Utility-Constrained Electronic Health Record Data Publishing Through Generalization and Disassociation. Medical Data Privacy Handbook Grigorios Loukides, John Liagouris, Aris Gkoulalas-Divanis, Manolis Terrovitis
2014	J	`jnl`	Apriori-based algorithms for k Trans. Data Priv. Giorgos Poulis, Spiros Skiadopoulos, Grigorios Loukides, Aris Gkoulalas-Divanis
2014	J	`jnl`	Disassociation for electronic health record privacy. J. Biomed. Informatics Grigorios Loukides, John Liagouris, Aris Gkoulalas-Divanis, Manolis Terrovitis
2014	J	`jnl`	Informatics methods in medical privacy. J. Biomed. Informatics Aris Gkoulalas-Divanis, Grigorios Loukides, Li Xiong, Jimeng Sun
2014	J	`jnl`	Publishing data from electronic health records while preserving privacy: A survey of algorithms. J. Biomed. Informatics Aris Gkoulalas-Divanis, Grigorios Loukides, Jimeng Sun
2014	B	`conf`	SECRETA: A System for Evaluating and Comparing RElational and Transaction Anonymization algorithms. EDBT Giorgos Poulis, Aris Gkoulalas-Divanis, Grigorios Loukides, Spiros Skiadopoulos, Christos Tryfonopoulos
2014	J	`jnl`	Toward smarter healthcare: Anonymizing medical data to support research studies. IBM J. Res. Dev. Aris Gkoulalas-Divanis, Grigorios Loukides, Jimeng Sun
2013	—	`book`	Anonymization of Electronic Medical Records to Support Clinical Analysis Aris Gkoulalas-Divanis, Grigorios Loukides
2013	—	`conf`	Anonymizing Data with Relational and Transaction Attributes. ECML/PKDD (3) Giorgos Poulis, Grigorios Loukides, Aris Gkoulalas-Divanis, Spiros Skiadopoulos
2013	—	`conf`	Distance-Based k^m-Anonymization of Trajectory Data. MDM (2) Giorgos Poulis, Spiros Skiadopoulos, Grigorios Loukides, Aris Gkoulalas-Divanis
2013	J	`jnl`	Efficient and flexible anonymization of transaction data. Knowl. Inf. Syst. Grigorios Loukides, Aris Gkoulalas-Divanis, Jianhua Shao
2013	—	`conf`	Hiding Sensitive Patterns from Sequence Databases: Research Challenges and Solutions. MDM (2) Grigorios Loukides, Aris Gkoulalas-Divanis
2013	A*	`conf`	Permutation-Based Sequential Pattern Hiding. ICDM Robert Gwadera, Aris Gkoulalas-Divanis, Grigorios Loukides
2013	—	`conf`	Select-Organize-Anonymize: A Framework for Trajectory Data Anonymization. ICDM Workshops Giorgos Poulis, Spiros Skiadopoulos, Grigorios Loukides, Aris Gkoulalas-Divanis
2013	J	`jnl`	Utility-Aware Anonymization of Diagnosis Codes. IEEE J. Biomed. Health Informatics Grigorios Loukides, Aris Gkoulalas-Divanis
2012	J	`jnl`	Anonymization of Longitudinal Electronic Medical Records. IEEE Trans. Inf. Technol. Biomed. Acar Tamersoy, Grigorios Loukides, Mehmet Ercan Nergiz, Yücel Saygin, Bradley A. Malin
2012	J	`jnl`	Assessing Disclosure Risk and Data Utility Trade-off in Transaction Data Anonymization. Int. J. Softw. Informatics Grigorios Loukides, Aris Gkoulalas-Divanis, Jianhua Shao
2012	J	`jnl`	Utility-guided Clustering-based Transaction Data Anonymization. Trans. Data Priv. Aris Gkoulalas-Divanis, Grigorios Loukides
2012	J	`jnl`	Utility-preserving transaction data anonymization with low information loss. Expert Syst. Appl. Grigorios Loukides, Aris Gkoulalas-Divanis
2011	—	`conf`	A heuristic method for deriving range-based classification rules. FSKD Achilles Tziatzios, Jianhua Shao, Grigorios Loukides
2011	J	`jnl`	COAT: COnstraint-based anonymization of transactions. Knowl. Inf. Syst. Grigorios Loukides, Aris Gkoulalas-Divanis, Bradley A. Malin
2011	—	`conf`	PCTA: privacy-constrained clustering-based transaction data anonymization. PAIS Aris Gkoulalas-Divanis, Grigorios Loukides
2011	J	`jnl`	Preventing range disclosure in k-anonymised data. Expert Syst. Appl. Grigorios Loukides, Jianhua Shao
2011	A*	`conf`	Revisiting sequential pattern hiding to enhance utility. KDD Aris Gkoulalas-Divanis, Grigorios Loukides
2010	—	`conf`	Anonymizing Transaction Data to Eliminate Sensitive Inferences. DEXA (1) Grigorios Loukides, Aris Gkoulalas-Divanis, Jianhua Shao
2010	—	`conf`	Beyond safe harbor: automatic discovery of health information de-identification policy alternatives. IHI Kathleen Benitez, Grigorios Loukides, Bradley A. Malin
2010	J	`jnl`	The disclosure of diagnosis codes can breach research participants' privacy. J. Am. Medical Informatics Assoc. Grigorios Loukides, Joshua C. Denny, Bradley A. Malin
2009	J	`jnl`	COAT: COnstraint-based Anonymization of Transactions CoRR Grigorios Loukides, Aris Gkoulalas-Divanis, Bradley A. Malin
2009	J	`jnl`	Privacy challenges and solutions in the social web. ACM Crossroads Grigorios Loukides, Aris Gkoulalas-Divanis
2009	—	`conf`	Towards Preference-Constrained DASFAA Workshops Grigorios Loukides, Achilles Tziatzios, Jianhua Shao
2008	J	`jnl`	An Efficient Clustering Algorithm for J. Comput. Sci. Technol. Grigorios Loukides, Jianhua Shao
2008	—	`conf`	An Empirical Study of Utility Measures for k-Anonymisation. BNCOD Grigorios Loukides, Jianhua Shao
2008	—	`—`	Data utility and privacy protection in data publishing. Grigorios Loukides
2008	—	`conf`	Data utility and privacy protection trade-off in k-anonymisation. PAIS Grigorios Loukides, Jianhua Shao
2007	Misc	`conf`	Capturing data usefulness and privacy protection in K-anonymisation. SAC Grigorios Loukides, Jianhua Shao
2007	C	`conf`	Clustering-Based K-Anonymisation Algorithms. DEXA Grigorios Loukides, Jianhua Shao
2007	—	`conf`	Speeding Up Clustering-Based BNCOD Grigorios Loukides, Jianhua Shao
2006	C	`conf`	Towards Balancing Data Usefulness and Privacy Protection in K-Anonymisation. CIT Grigorios Loukides, Jianhua Shao