Panayiotis Tsaparas

105 papers A* 27A 15B 8Journal 31Unranked 18
YearRankTypeTitle / Venue / Authors
2026 A* conf
EmeraldMind: A Knowledge Graph-Augmented Framework for Greenwashing Detection.
WWW
Georgios Kaoukis, Ioannis Aris Koufopoulos, Eleni Psaroudaki, Danae Pla Karidi, Evaggelia Pitoura, George Papastefanatos, Panayiotis Tsaparas
2026 A* conf
Fairness in Opinion-Formation Dynamics.
WWW
Nikos Theologis, Evaggelia Pitoura, Evimaria Terzi, Panayiotis Tsaparas
2025 — conf
A Fair Label Propagation Community Detection Algorithm.
ASONAM (1)
Glykeria Toulina, Panayiotis Tsaparas
2025 J jnl
EmeraldMind: A Knowledge Graph-Augmented Framework for Greenwashing Detection.
CoRR
Georgios Kaoukis, Ioannis Aris Koufopoulos, Eleni Psaroudaki, Danae Pla Karidi, Evaggelia Pitoura, George Papastefanatos, Panayiotis Tsaparas
2025 A* conf
Fair Network Communities through Group Modularity.
WWW
Christos Gkartzios, Evaggelia Pitoura, Panayiotis Tsaparas
2025 — conf
Hands on Session: Lab Session 1.
ACM Europe Summer School
Panayiotis Tsaparas, Nikolaos Theologis
2025 — conf
Hands on Session: Lab Session 2.
ACM Europe Summer School
Panayiotis Tsaparas, Nikolaos Theologis
2025 J jnl
Health Misinformation in Social Networks: A Survey of Information Technology Approaches.
Future Internet
Vasiliki Papanikou, Panagiotis Papadakos, Theodora Karamanidou, Thanos G. Stavropoulos, Evaggelia Pitoura, Panayiotis Tsaparas
2025 J jnl
Introduction to the "Best Papers of WSDM 2023" Special Issue.
ACM Trans. Intell. Syst. Technol.
Hady W. Lauw, Marc Najork, Evimaria Terzi, Panayiotis Tsaparas
2025 — conf
Modeling Network Formation with LLM Agents: The Role of Demographics and Personality.
ICDM (Workshops)
Christos Gkartzios, Evaggelia Pitoura, Panayiotis Tsaparas
2025 A* conf
Modularity-Fair Deep Community Detection.
ICDM
Christos Gkartzios, Evaggelia Pitoura, Panayiotis Tsaparas
2025 — conf
Network Data Science: Course 1.
ACM Europe Summer School
Panayiotis Tsaparas
2025 — conf
Network Data Science: Course 2.
ACM Europe Summer School
Panayiotis Tsaparas
2025 — conf
PULSE - Polling Using LLM-based Sentiment Extraction.
ICDM (Workshops)
Christos Karanikolopoulos, Panagiotis Papadakos, Panayiotis Tsaparas
2025 J jnl
Subgroup fairness based on shared counterfactuals.
Knowl. Inf. Syst.
Alejandro Kuratomi, Zed Lee, Panayiotis Tsaparas, Evaggelia Pitoura, Tony Lindgren, Guilherme Dinis Junior, Panagiotis Papapetrou
2024 A* conf
CounterFair: Group Counterfactuals for Bias Detection, Mitigation and Subgroup Identification.
ICDM
Alejandro Kuratomi, Zed Lee, Panayiotis Tsaparas, Guilherme Dinis Junior, Evaggelia Pitoura, Tony Lindgren, Panagiotis Papapetrou
2024 J jnl
Health Misinformation in Social Networks: A Survey of IT Approaches.
CoRR
Vasiliki Papanikou, Panagiotis Papadakos, Theodora Karamanidou, Thanos G. Stavropoulos, Evaggelia Pitoura, Panayiotis Tsaparas
2024 A conf
Integrity 2024: Integrity in Social Networks and Media.
WSDM
Lluís Garcia Pueyo, Symeon Papadopoulos, Prathyusha Senthil Kumar, Aristides Gionis, Panayiotis Tsaparas, Vasilis Verroios, Giuseppe Manco, Anton Andryeyev, Stefano Cresci, Timos Sellis, Anthony McCosker
2023 J jnl
ACM WSDM 2023 Report.
SIGWEB Newsl.
Hady W. Lauw, Tat-Seng Chua, Luo Si, Evimaria Terzi, Panayiotis Tsaparas, Andrew Tomkins
2023 — conf
Counterfactual Explanations for Recommendation Bias.
PKDD/ECML Workshops (1)
Leonidas Zafeiriou, Panayiotis Tsaparas, Evaggelia Pitoura
2023 A conf
Integrity 2023: Integrity in Social Networks and Media.
WSDM
Lluís Garcia Pueyo, Panayiotis Tsaparas, Prathyusha Senthil Kumar, Timos Sellis, Paolo Papotti, Sibel Adali, Giuseppe Manco, Tudor Trufinescu, Gireeja Ranade, James R. Verbus, Mehmet N. Tek, Anthony McCosker
2023 A ed.
Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining, WSDM 2023, Singapore, 27 February 2023 - 3 March 2023.
WSDM
Tat-Seng Chua, Hady W. Lauw, Luo Si, Evimaria Terzi, Panayiotis Tsaparas
2023 J jnl
Report on the 16th ACM International Conference on Web Search and Data Mining (WSDM 2023).
SIGIR Forum
Hady W. Lauw, Tat-Seng Chua, Luo Si, Evimaria Terzi, Panayiotis Tsaparas, Andrew Tomkins
2022 J jnl
Integrity 2022: Integrity in Social Networks and Media.
CoRR
Lluís Garcia Pueyo, Panayiotis Tsaparas, Anand Bhaskar, Prathyusha Senthil Kumar, Roelof van Zwol, Timos Sellis, Anthony McCosker, Paolo Papotti
2022 A* conf
Link Recommendations for PageRank Fairness.
WWW
Sotiris Tsioutsiouliklis, Evaggelia Pitoura, Konstantinos Semertzidis, Panayiotis Tsaparas
2022 — conf
Measuring the Burden of (Un)fairness Using Counterfactuals.
PKDD/ECML Workshops (1)
Alejandro Kuratomi, Evaggelia Pitoura, Panagiotis Papapetrou, Tony Lindgren, Panayiotis Tsaparas
2021 A* conf
Fairness-Aware PageRank.
WWW
Sotiris Tsioutsiouliklis, Evaggelia Pitoura, Panayiotis Tsaparas, Ilias Kleftakis, Nikos Mamoulis
2021 A* conf
Flow Computation in Temporal Interaction Networks.
ICDE
Chrysanthi Kosyfaki, Nikos Mamoulis, Evaggelia Pitoura, Panayiotis Tsaparas
2021 J jnl
Modeling aggression propagation on social media.
Online Soc. Networks Media
Chrysoula Terizi, Despoina Chatzakou, Evaggelia Pitoura, Panayiotis Tsaparas, Nicolas Kourtellis
2021 — ed.
Proceedings of the Workshop on Misinformation Integrity in Social Networks 2021 co-located with 30th The Web Conference (TheWebConf 2021), Ljubljana, Slovenia, April 15, 2021.
MISINFO@WWW
Lluís Garcia Pueyo, Anand Bhaskar, Prathyusha Senthil Kumar, Panayiotis Tsaparas, Kiran Garimella, Yu Sun, Francesco Bonchi
2020 J jnl
Angry Birds Flock Together: Aggression Propagation on Social Media.
CoRR
Chrysoula Terizi, Despoina Chatzakou, Evaggelia Pitoura, Panayiotis Tsaparas, Nicolas Kourtellis
2020 J jnl
Fairness-Aware Link Analysis.
CoRR
Sotiris Tsioutsiouliklis, Evaggelia Pitoura, Panayiotis Tsaparas, Ilias Kleftakis, Nikos Mamoulis
2020 A* conf
Finding Teams of Maximum Mutual Respect.
ICDM
Sofia Maria Nikolakaki, Evaggelia Pitoura, Evimaria Terzi, Panayiotis Tsaparas
2020 J jnl
Flow Computation in Temporal Interaction Networks.
CoRR
Chrysanthi Kosyfaki, Nikos Mamoulis, Evaggelia Pitoura, Panayiotis Tsaparas
2020 B conf
Forming Compatible Teams in Signed Networks.
EDBT
Ioannis Kouvatis, Konstantinos Semertzidis, Maria Zerva, Evaggelia Pitoura, Panayiotis Tsaparas
2020 J jnl
Forming Compatible Teams in Signed Networks.
CoRR
Ioannis Kouvatis, Konstantinos Semertzidis, Maria Zerva, Evaggelia Pitoura, Panayiotis Tsaparas
2020 A conf
Integrity 2020: Integrity in Social Networks and Media.
WSDM
Lluis Garcia Pueyo, Anand Bhaskar, Panayiotis Tsaparas, Aristides Gionis, Tina Eliassi-Rad, Maria Daltayanni, Yu Sun, Panagiotis Papadimitriou
2020 B conf
Template-Driven Team Formation.
ASONAM
Spiros Apostolou, Panayiotis Tsaparas, Evimaria Terzi
2019 — conf
Bias Disparity in Recommendation Systems.
RMSE@RecSys
Virginia Tsintzou, Evaggelia Pitoura, Panayiotis Tsaparas
2019 J jnl
Finding lasting dense subgraphs.
Data Min. Knowl. Discov.
Konstantinos Semertzidis, Evaggelia Pitoura, Evimaria Terzi, Panayiotis Tsaparas
2019 B conf
Flow Motifs in Interaction Networks.
EDBT
Chrysanthi Kosyfaki, Nikos Mamoulis, Evaggelia Pitoura, Panayiotis Tsaparas
2019 — ch.
Influence Analytics in Graphs.
Encyclopedia of Big Data Technologies
Laks V. S. Lakshmanan, Panayiotis Tsaparas, Yuichi Yoshida
2019 J jnl
Opinion Dynamics with Backfire Effect and Biased Assimilation.
CoRR
Xi Chen, Panayiotis Tsaparas, Jefrey Lijffijt, Tijl De Bie
2019 A conf
Recommendations for optimizing the collective user experience.
SDM
Behzad Golshan, Evimaria Terzi, Panayiotis Tsaparas
2018 J jnl
Bias Disparity in Recommendation Systems.
CoRR
Virginia Tsintzou, Evaggelia Pitoura, Panayiotis Tsaparas
2018 J jnl
Flow Motifs in Interaction Networks.
CoRR
Chrysanthi Kosyfaki, Nikos Mamoulis, Evaggelia Pitoura, Panayiotis Tsaparas
2018 — ch.
Rank-Join Indices.
Encyclopedia of Database Systems (2nd ed.)
Themis Palpanas, Panayiotis Tsaparas
2018 J jnl
Recommending packages with validity constraints to groups of users.
Knowl. Inf. Syst.
Shuyao Qi, Nikos Mamoulis, Evaggelia Pitoura, Panayiotis Tsaparas
2017 — ch.
Categorical Data Clustering.
Encyclopedia of Machine Learning and Data Mining
Periklis Andritsos, Panayiotis Tsaparas
2017 J jnl
Defining and predicting troll vulnerability in online social media.
Soc. Netw. Anal. Min.
Paraskevas Tsantarliotis, Evaggelia Pitoura, Panayiotis Tsaparas
2017 A* conf
Fairness in Package-to-Group Recommendations.
WWW
Dimitris Serbos, Shuyao Qi, Nikos Mamoulis, Evaggelia Pitoura, Panayiotis Tsaparas
2017 J jnl
Measuring and moderating opinion polarization in social networks.
Data Min. Knowl. Discov.
Antonis Matakos, Evimaria Terzi, Panayiotis Tsaparas
2017 J jnl
Micro-review synthesis for multi-entity summarization.
Data Min. Knowl. Discov.
Thanh-Son Nguyen, Hady Wirawan Lauw, Panayiotis Tsaparas
2017 J jnl
On Measuring Bias in Online Information.
CoRR
Evaggelia Pitoura, Panayiotis Tsaparas, Giorgos Flouris, Irini Fundulaki, Panagiotis Papadakos, Serge Abiteboul, Gerhard Weikum
2017 J jnl
On Measuring Bias in Online Information.
SIGMOD Rec.
Evaggelia Pitoura, Panayiotis Tsaparas, Giorgos Flouris, Irini Fundulaki, Panagiotis Papadakos, Serge Abiteboul, Gerhard Weikum
2016 J jnl
Best Friends Forever (BFF): Finding Lasting Dense Subgraphs.
CoRR
Konstantinos Semertzidis, Evaggelia Pitoura, Evimaria Terzi, Panayiotis Tsaparas
2016 A conf
Centrality-Aware Link Recommendations.
WSDM
Nikos Parotsidis, Evaggelia Pitoura, Panayiotis Tsaparas
2016 A* conf
Recommending Packages to Groups.
ICDM
Shuyao Qi, Nikos Mamoulis, Evaggelia Pitoura, Panayiotis Tsaparas
2016 A conf
Sentiment-Based Topic Suggestion for Micro-Reviews.
ICWSM
Ziyu Lu, Nikos Mamoulis, Evaggelia Pitoura, Panayiotis Tsaparas
2016 B conf
Temporal mechanisms of polarization in online reviews.
ASONAM
Antonis Matakos, Panayiotis Tsaparas
2016 B conf
Troll vulnerability in online social networks.
ASONAM
Paraskevas Tsantarliotis, Evaggelia Pitoura, Panayiotis Tsaparas
2015 — conf
Diffusion Maximization in Evolving Social Networks.
COSN
Nathalie T. H. Gayraud, Evaggelia Pitoura, Panayiotis Tsaparas
2015 B conf
Identifying Converging Pairs of Nodes on a Budget.
EDBT
Konstantina Lazaridou, Konstantinos Semertzidis, Evaggelia Pitoura, Panayiotis Tsaparas
2015 J jnl
Review Selection Using Micro-Reviews.
IEEE Trans. Knowl. Data Eng.
Thanh-Son Nguyen, Hady Wirawan Lauw, Panayiotis Tsaparas
2015 A conf
Review Synthesis for Micro-Review Summarization.
WSDM
Thanh-Son Nguyen, Hady Wirawan Lauw, Panayiotis Tsaparas
2015 A conf
Selecting Shortcuts for a Smaller World.
SDM
Nikos Parotsidis, Evaggelia Pitoura, Panayiotis Tsaparas
2014 B conf
On Assigning Implicit Reputation Scores in an Online Labor Marketplace.
EDBT
Maria Daltayanni, Luca de Alfaro, Panagiotis Papadimitriou, Panayiotis Tsaparas
2014 A* conf
Using strong triadic closure to characterize ties in social networks.
KDD
Stavros Sintos, Panayiotis Tsaparas
2013 A conf
Estimating the relative utility of networks for predicting user activities.
CIKM
Nina Mishra, Daniel M. Romero, Panayiotis Tsaparas
2013 — conf
How people describe themselves on Twitter.
DBSocial
Konstantinos Semertzidis, Evaggelia Pitoura, Panayiotis Tsaparas
2013 J jnl
Opinion Maximization in Social Networks
CoRR
Aristides Gionis, Evimaria Terzi, Panayiotis Tsaparas
2013 A conf
Opinion Maximization in Social Networks.
SDM
Aristides Gionis, Evimaria Terzi, Panayiotis Tsaparas
2013 J jnl
TACI: Taxonomy-Aware Catalog Integration.
IEEE Trans. Knowl. Data Eng.
Panagiotis Papadimitriou, Panayiotis Tsaparas, Ariel Fuxman, Lise Getoor
2013 A conf
Using micro-reviews to select an efficient set of reviews.
CIKM
Thanh-Son Nguyen, Hady Wirawan Lauw, Panayiotis Tsaparas
2012 A conf
Enabling direct interest-aware audience selection.
CIKM
Ariel Fuxman, Anitha Kannan, Zhenhui Li, Panayiotis Tsaparas
2011 — conf
Facet discovery for structured web search: a query-log mining approach.
SIGMOD Conference
Jeffrey Pound, Stelios Paparizos, Panayiotis Tsaparas
2011 A* conf
Selecting a comprehensive set of reviews.
KDD
Panayiotis Tsaparas, Alexandros Ntoulas, Evimaria Terzi
2010 — ch.
Categorical Data Clustering.
Encyclopedia of Machine Learning
Periklis Andritsos, Panayiotis Tsaparas
2010 A* conf
Exploiting social context for review quality prediction.
WWW
Yue Lu, Panayiotis Tsaparas, Alexandros Ntoulas, Livia Polanyi
2010 — conf
Structured annotations of web queries.
SIGMOD Conference
Nikos Sarkas, Stelios Paparizos, Panayiotis Tsaparas
2009 A conf
Generating labels from clicks.
WSDM
Rakesh Agrawal, Alan Halverson, Krishnaram Kenthapadi, Nina Mishra, Panayiotis Tsaparas
2009 A* conf
Improving classification accuracy using automatically extracted training data.
KDD
Ariel Fuxman, Anitha Kannan, Andrew B. Goldberg, Rakesh Agrawal, Panayiotis Tsaparas, John C. Shafer
2008 A* conf
Using the wisdom of the crowds for keyword generation.
WWW
Ariel Fuxman, Panayiotis Tsaparas, Kannan Achan, Rakesh Agrawal
2007 J jnl
Assessing data mining results via swap randomization.
ACM Trans. Knowl. Discov. Data
Aristides Gionis, Heikki Mannila, Taneli Mielikäinen, Panayiotis Tsaparas
2007 J jnl
Clustering aggregation.
ACM Trans. Knowl. Discov. Data
Aristides Gionis, Heikki Mannila, Panayiotis Tsaparas
2007 J jnl
Stability and Similarity of Link Analysis Ranking Algorithms.
Internet Math.
Debora Donato, Stefano Leonardi, Panayiotis Tsaparas
2006 A* conf
Aggregating time partitions.
KDD
Taneli Mielikäinen, Evimaria Terzi, Panayiotis Tsaparas
2006 A* conf
Assessing data mining results via swap randomization.
KDD
Aristides Gionis, Heikki Mannila, Taneli Mielikäinen, Panayiotis Tsaparas
2006 A conf
Efficient Algorithms for Sequence Segmentation.
SDM
Evimaria Terzi, Panayiotis Tsaparas
2006 — conf
Ranking target objects of navigational queries.
WIDM
Louiqa Raschid, Yao Wu, Woei-Jyh Lee, Maria-Esther Vidal, Panayiotis Tsaparas, Padmini Srinivasan, Aditya Kumar Sehgal
2005 A* conf
Clustering Aggregation.
ICDE
Aristides Gionis, Heikki Mannila, Panayiotis Tsaparas
2005 — conf
Dimension Induced Clustering.
LWA
Aristides Gionis, Alexander Hinneburg, Spiros Papadimitriou, Panayiotis Tsaparas
2005 A* conf
Dimension induced clustering.
KDD
Aristides Gionis, Alexander Hinneburg, Spiros Papadimitriou, Panayiotis Tsaparas
2005 J jnl
Link analysis ranking: algorithms, theory, and experiments.
ACM Trans. Internet Techn.
Allan Borodin, Gareth O. Roberts, Jeffrey S. Rosenthal, Panayiotis Tsaparas
2005 A* conf
Mining Chains of Relations.
ICDM
Foto N. Afrati, Gautam Das, Aristides Gionis, Heikki Mannila, Taneli Mielikäinen, Panayiotis Tsaparas
2005 — conf
Mining the inner structure of the Web graph.
WebDB
Debora Donato, Stefano Leonardi, Stefano Millozzi, Panayiotis Tsaparas
2005 A* conf
Parameter-Free Spatial Data Mining Using MDL.
ICDM
Spiros Papadimitriou, Aristides Gionis, Panayiotis Tsaparas, Risto A. Väisänen, Heikki Mannila, Christos Faloutsos
2005 A* conf
Stability and Similarity of Link Analysis Ranking Algorithms.
ICALP
Debora Donato, Stefano Leonardi, Panayiotis Tsaparas
2004 — conf
Information-Theoretic Tools for Mining Database Structure from Large Data Sets.
SIGMOD Conference
Periklis Andritsos, Renée J. Miller, Panayiotis Tsaparas
2004 B conf
LIMBO: Scalable Clustering of Categorical Data.
EDBT
Periklis Andritsos, Panayiotis Tsaparas, Renée J. Miller, Kenneth C. Sevcik
2004 — —
Link analysis ranking.
Panayiotis Tsaparas
2004 A* conf
Using Non-Linear Dynamical Systems for Web Searching and Ranking.
PODS
Panayiotis Tsaparas
2003 A* conf
Ranked Join Indices.
ICDE
Panayiotis Tsaparas, Themistoklis Palpanas, Yannis Kotidis, Nick Koudas, Divesh Srivastava
2002 A* conf
Mining Significant Associations in Large Scale Text Corpora.
ICDM
Prabhakar Raghavan, Panayiotis Tsaparas
2001 A* conf
Finding authorities and hubs from link structures on the World Wide Web.
WWW
Allan Borodin, Gareth O. Roberts, Jeffrey S. Rosenthal, Panayiotis Tsaparas