| 2026 | DOLAP | Adaptive Noise Injection in Variational Autoencoders for Enhancing Fairness in Group Recommendations. | Emaz Uddin Ahmad, Maria Stratigi, Kostas Stefanidis |
| 2026 | EDBT | A Systematic Literature Review on Hallucination Detection Methods in LLMs. | Elisa Bestetti, Zheying Zhang, Kostas Stefanidis |
| 2026 | EDBT | Selective Post-hoc Bias Mitigation via Counterfactual Sensitivity. | Roti Islam Shithy, Maria Stratigi, Kostas Stefanidis |
| 2026 | EDBT | A Dataset Generation Method for Bias Evaluation in Retrieval-Augmented Generation. | Yingqi Zhao, Vasilis Efthymiou, Jyrki Nummenmaa, Kostas Stefanidis |
| 2026 | ICDE | Improving Sentiment Analysis of Mobile App Reviews through Emoji and Slang Normalization. | Tinne Dey, Zheying Zhang, Kostas Stefanidis |
| 2026 | ICDE | Responsible Entity Resolution Over Streaming Data. | Kostas Stefanidis, Vasilis Efthymiou, Tiago Brasileiro Arajo |
| 2026 | SAC | Learning from Encoded Patterns: A Recurrence Plot Approach for Privacy-Preserving Record Linkage. | Thiago Nbrega, Tiago Brasileiro Arajo, Carlos Eduardo S. Pires, Dimas Cassimiro do Nascimento, Demetrio Gomes Mestre, Kostas Stefanidis |
| 2025 | ADBIS | LLM-Driven Summarization and Distinguish Analysis of Multiple Entities in RDF Graphs. | Hamza Iqbal, Kostas Stefanidis |
| 2025 | ADBIS | Enhancing Data Interoperability in Multi-platform Lakehouses with Apache Iceberg. | Muhammad Hassan Shafiq, Zheying Zhang, Kostas Stefanidis |
| 2025 | ADBIS | Bias Evaluation in Contextual Machine Learning. | Anna Dalla Vecchia, Kostas Stefanidis |
| 2025 | ADBIS | ReFaRAG: Re-ranking for Bias Mitigation in Retrieval-Augmented Generation. | Yingqi Zhao, Vasilis Efthymiou, Jyrki Nummenmaa, Kostas Stefanidis |
| 2025 | DOLAP | A Diversity-aware Approach to Bundle Recommendations. | Nastaran Ebrahimi, Zheying Zhang, Kostas Stefanidis |
| 2025 | DOLAP | Counterfactual Explanations for Group Recommendations. | Maria Stratigi, Nikos Bikakis, Kostas Stefanidis |
| 2025 | EDBT | Dynamic User Preferences Optimization in Time-Aware Recommendations. | Ainaz Ebrahimi, Zheying Zhang, Kostas Stefanidis |
| 2024 | ADBIS | Data-Driven Analysis for Monitoring Software Evolution. | Zheying Zhang, Kostas Stefanidis |
| 2024 | ADBIS | Evaluating Diversity in Sequential Group Recommendations. | Haider Zulfiqar, Emilia Lenzi, Kostas Stefanidis |
| 2024 | DOLAP | SQUIRREL 2.0: Fairness & Explanations for Sequential Group Recommendations. | Md Mahade Hasan, Soha Pervez, Maria Stratigi, Kostas Stefanidis |
| 2024 | EDBT | Examining the Impact of Multi-Objective Recommender Systems on Providers Bias. | Reza Shafiloo, Kostas Stefanidis |
| 2024 | ICDE | Why-Not Explainable Graph Recommender. | Herv-Madelein Attolou, Katerina Tzompanaki, Kostas Stefanidis, Dimitris Kotzinos |
| 2024 | ICWE | EMiGRe: Unveiling Why Your Recommendations are Not What You Expect. | Herv-Madelein Attolou, Katerina Tzompanaki, Kostas Stefanidis, Dimitris Kotzinos |
| 2024 | IDEAS | Multi-attribute Bias Mitigation in Recommender Systems. | Uzair Ahmed, Kostas Stefanidis |
| 2024 | IDEAS | Fairness in Group Recommender Systems Using Variational Autoencoders. | Muhammad Shahzaib Ali, Kostas Stefanidis |
| 2024 | WWW | DIAERESIS: Knowledge Graph Partitioning for Efficient Query Answering. | Georgia Troullinou, Kostas Stefanidis, Dimitris Plexousakis, Haridimos Kondylakis |
| 2023 | ADBIS | Multi-Objective Fairness in Team Assembly. | Rodrigo Borges, Otto Sahlgren, Sami Koivunen, Kostas Stefanidis, Thomas Olsson, Arto Laitinen |
| 2023 | EDBT | Auditing for Spatial Fairness. | Dimitris Sacharidis, Giorgos Giannopoulos, George Papastefanatos, Kostas Stefanidis |
| 2023 | EDBT | SHARE: A Framework for Personalized and Healthy Recipe Recommendations. | Konstantinos Zioutos, Haridimos Kondylakis, Kostas Stefanidis |
| 2023 | SAC | REFORMIST: Hierarchical Attention Networks for Multi-Domain Sentiment Classification with Active Learning. | Katerina Katsarou, Nabil Douss, Kostas Stefanidis |
| 2023 | SAC | MUTUAL: Multi-Domain Sentiment Classification via Uncertainty Sampling. | Katerina Katsarou, Roxana Jeney, Kostas Stefanidis |
| 2023 | VLDB | Fair Sequential Group Recommendations in SQUIRREL Movies. | Eva Chrysostomaki, Maria Stratigi, Vasilis Efthymiou, Kostas Stefanidis, Dimitris Plexousakis |
| 2022 | SAC | F2VAE: a framework for mitigating user unfairness in recommendation systems. | Rodrigo Borges, Kostas Stefanidis |
| 2021 | CIKM | FairER: Entity Resolution With Fairness Constraints. | Vasilis Efthymiou, Kostas Stefanidis, Evaggelia Pitoura, Vassilis Christophides |
| 2021 | ICDE | Fairness in Rankings and Recommenders: Models, Methods and Research Directions. | Evaggelia Pitoura, Kostas Stefanidis, Georgia Koutrika |
| 2021 | MDM | Fairness-aware Methods in Rankings and Recommenders. | Evaggelia Pitoura, Kostas Stefanidis, Georgia Koutrika |
| 2021 | SAC | On mitigating popularity bias in recommendations via variational autoencoders. | Rodrigo Borges, Kostas Stefanidis |
| 2020 | EDBT | On Measuring Popularity Bias in Collaborative Filtering Data. | Rodrigo Borges, Kostas Stefanidis |
| 2020 | EDBT | Fairness in Rankings and Recommenders. | Evaggelia Pitoura, Georgia Koutrika, Kostas Stefanidis |
| 2020 | SAC | Schema-agnostic blocking for streaming data. | Tiago Brasileiro Arajo, Kostas Stefanidis, Carlos Eduardo Santos Pires, Jyrki Nummenmaa, Thiago Pereira da Nbrega |
| 2020 | SAC | Fair sequential group recommendations. | Maria Stratigi, Jyrki Nummenmaa, Evaggelia Pitoura, Kostas Stefanidis |
| 2020 | WISE | Why-Not Questions & Explanations for Collaborative Filtering. | Maria Stratigi, Katerina Tzompanaki, Kostas Stefanidis |
| 2019 | ADBIS | GameRecs: Video Games Group Recommendations. | Rama Hannula, Aapo Nikkil, Kostas Stefanidis |
| 2019 | ADBIS | FIFARecs: A Recommender System for FIFA18. | Jaka Klancar, Karsten Paulussen, Kostas Stefanidis |
| 2019 | ADBIS | Ratings vs. Reviews in Recommender Systems: A Case Study on the Amazon Movies Dataset. | Maria Stratigi, Xiaozhou Li, Kostas Stefanidis, Zheying Zhang |
| 2019 | EDBT | MinoanER: Schema-Agnostic, Non-Iterative, Massively Parallel Resolution of Web Entities. | Vasilis Efthymiou, George Papadakis, Kostas Stefanidis, Vassilis Christophides |
| 2019 | MEDES | Enhancing Long Term Fairness in Recommendations with Variational Autoencoders. | Rodrigo Borges, Kostas Stefanidis |
| 2019 | SAC | A noise tolerant and schema-agnostic blocking technique for entity resolution. | Tiago Brasileiro Arajo, Carlos Eduardo Santos Pires, Demetrio Gomes Mestre, Thiago Pereira da Nbrega, Dimas Cassimiro do Nascimento, Kostas Stefanidis |
| 2018 | DEXA | FairGRecs: Fair Group Recommendations by Exploiting Personal Health Information. | Maria Stratigi, Haridimos Kondylakis, Kostas Stefanidis |
| 2018 | ICDE | RDF Query Answering Using Apache Spark: Review and Assessment. | Giannis Agathangelos, Georgia Troullinou, Haridimos Kondylakis, Kostas Stefanidis, Dimitris Plexousakis |
| 2018 | ICDE | Simplifying Entity Resolution on Web Data with Schema-Agnostic, Non-Iterative Matching. | Vasilis Efthymiou, George Papadakis, Kostas Stefanidis, Vassilis Christophides |
| 2018 | SoMeT | Mobile App Evolution Analysis Based on User Reviews. | Xiaozhou Li, Zheying Zhang, Kostas Stefanidis |
| 2017 | ICDE | Web-Scale Blocking, Iterative and Progressive Entity Resolution. | Kostas Stefanidis, Vassilis Christophides, Vasilis Efthymiou |
| 2017 | ICDE | On Recommending Evolution Measures: A Human-Aware Approach. | Kostas Stefanidis, Haridimos Kondylakis, Georgia Troullinou |
| 2017 | ICDE | Fairness in Group Recommendations in the Health Domain. | Maria Stratigi, Haridimos Kondylakis, Kostas Stefanidis |
| 2017 | SIGMOD | On Achieving Diversity in Recommender Systems. | Marialena Kyriakidi, Kostas Stefanidis, Yannis E. Ioannidis |
| 2016 | EDBT | Minoan ER: Progressive Entity Resolution in the Web of Data. | Vasilis Efthymiou, Kostas Stefanidis, Vassilis Christophides |
| 2016 | EDBT | Cluster-based Contextual Recommendations. | Kostas Stefanidis, Eirini Ntoutsi |
| 2016 | EDBT | Understanding Ontology Evolution Beyond Deltas. | Georgia Troullinou, Giannis Roussakis, Haridimos Kondylakis, Kostas Stefanidis, Giorgos Flouris |
| 2014 | CIKM | "Strength Lies in Differences": Diversifying Friends for Recommendations through Subspace Clustering. | Eirini Ntoutsi, Kostas Stefanidis, Katharina Rausch, Hans-Peter Kriegel |
| 2014 | CIKM | Enabling Social Search in Time through Graphs. | Kostas Stefanidis, Georgia Koloniari |
| 2014 | EDBT | Exploratory Search in Databases and the Web. | Georgia Koutrika, Laks V. S. Lakshmanan, Mirek Riedewald, Kostas Stefanidis |
| 2014 | ER | SQTime: Time-Enhanced Social Search Querying. | Panagiotis Lionakis, Kostas Stefanidis, Georgia Koloniari |
| 2014 | ER | On Designing Archiving Policies for Evolving RDF Datasets on the Web. | Kostas Stefanidis, Ioannis Chrysakis, Giorgos Flouris |
| 2014 | ICDM | NaviSoc: A Socially Enhanced Real-Time Navigator. | Nikolaos Louloudakis, Vasileios Theodosiadis, Haridimos Kondylakis, Kostas Stefanidis |
| 2014 | IPMU | Context-Aware Distance Semantics for Inconsistent Database Systems. | Anna Zamansky, Ofer Arieli, Kostas Stefanidis |
| 2014 | WWW | Entity resolution in the web of data. | Kostas Stefanidis, Vasilis Efthymiou, Melanie Herschel, Vassilis Christophides |
| 2014 | SSDBM | Exploring subspace clustering for recommendations. | Katharina Rausch, Eirini Ntoutsi, Kostas Stefanidis, Hans-Peter Kriegel |
| 2013 | ADBIS | A Framework for Grouping and Summarizing Keyword Search Results. | Orestis Gkorgkas, Kostas Stefanidis, Kjetil Nrvg |
| 2012 | DASFAA | gRecs: A Group Recommendation System Based on User Clustering. | Irene Ntoutsi, Kostas Stefanidis, Kjetil Nrvg, Hans-Peter Kriegel |
| 2012 | DEXA | A Framework for Time-Aware Recommendations. | Kostas Stefanidis, Irene Ntoutsi, Kjetil Nrvg, Hans-Peter Kriegel |
| 2012 | ER | Fast Group Recommendations by Applying User Clustering. | Eirini Ntoutsi, Kostas Stefanidis, Kjetil Nrvg, Hans-Peter Kriegel |
| 2012 | ER | Contextual Recommendations for Groups. | Kostas Stefanidis, Nafiseh Shabib, Kjetil Nrvg, John Krogstie |
| 2011 | SIGMOD | Nearest keyword search in XML documents. | Yufei Tao, Stavros Papadopoulos, Cheng Sheng, Kostas Stefanidis |
| 2010 | EDBT | PerK: personalized keyword search in relational databases through preferences. | Kostas Stefanidis, Marina Drosou, Evaggelia Pitoura |
| 2010 | ICDE | Representation, composition and application of preferences in databases. | Georgia Koutrika, Evaggelia Pitoura, Kostas Stefanidis |
| 2010 | ICDE | On novelty in publish/subscribe delivery. | Dimitris Souravlias, Marina Drosou, Kostas Stefanidis, Evaggelia Pitoura |
| 2008 | EDBT | Fast contextual preference scoring of database tuples. | Kostas Stefanidis, Evaggelia Pitoura |
| 2007 | ICDE | Adding Context to Preferences. | Kostas Stefanidis, Evaggelia Pitoura, Panos Vassiliadis |
| 2007 | MDM | On Relaxing Contextual Preference Queries. | Kostas Stefanidis, Evaggelia Pitoura, Panos Vassiliadis |
| 2006 | ADBIS | Modeling and Storing Context-Aware Preferences. | Kostas Stefanidis, Evaggelia Pitoura, Panos Vassiliadis |
| 2005 | MDM | On Supporting Context-Aware Preferences in Relational Database Systems. | Kostas Stefanidis, Evaggelia Pitoura, Panos Vassiliadis |