Paraskevi Fragopoulou

89 papers B 6C 1Misc 3Journal 47Unranked 29

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	An Expectation-Maximization framework for Personalized Itinerary Recommendation with POI Categories and Must-see POIs. Trans. Recomm. Syst. Costas Panagiotakis, Evangelia Daskalaki, Harris Papadakis, Paraskevi Fragopoulou
2025	J	`jnl`	Hashing in the Fight Against CSAM: Technology at the Crossroads of Law and Ethics. J. Cybersecur. Priv. Evangelia Daskalaki, Emmanouela Kokolaki, Paraskevi Fragopoulou
2025	J	`jnl`	SafeLine.gr - The First Official Trusted Flagger Organisation under the Digital Services Act (DSA) in Greece. ERCIM News Meltini Christodoulaki, Paraskevi Fragopoulou
2025	J	`jnl`	The Role of AI-Based Age Estimation in Promoting Safer Digital Environments for Children: Ethical and Accessibility Considerations. ERCIM News Emmanouela Kokolaki, Paraskevi Fragopoulou
2025	J	`jnl`	Unveiling AI's Threats to Child Protection: Regulatory efforts to Criminalize AI-Generated CSAM and Emerging Children's Rights Violations. CoRR Emmanouela Kokolaki, Paraskevi Fragopoulou
2024	J	`jnl`	Applying Recommender Systems to Predict Personalized Film Age Ratings for Parents. Algorithms Harris Papadakis, Paraskevi Fragopoulou, Costas Panagiotakis
2024	J	`jnl`	Navigating the Future of Education: Educators' Insights on AI Integration and Challenges in Greece, Hungary, Latvia, Ireland and Armenia. CoRR Evangelia Daskalaki, Katerina Psaroudaki, Paraskevi Fragopoulou
2024	J	`jnl`	Visit planner: A personalized mobile trip design application based on a hybrid recommendation model. Comput. Sci. Inf. Syst. Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou, Georgios Chalkiadakis, Errikos Streviniotis, Ioannis Panagiotis Ziogas, Michail Koutsmanis, Panagiotis Bariamis
2022	J	`jnl`	Collaborative filtering recommender systems taxonomy. Knowl. Inf. Syst. Harris Papadakis, Antonis Papagrigoriou, Costas Panagiotakis, Eleftherios Kosmas, Paraskevi Fragopoulou
2022	J	`jnl`	Discovery and Classification of Twitter Bots. SN Comput. Sci. Alexander Shevtsov, Maria Oikonomidou, Despoina Antonakaki, Polyvios Pratikakis, Alexandros Kanterakis, Paraskevi Fragopoulou, Sotiris Ioannidis
2022	Misc	`conf`	Personalized Itinerary Recommendation via Expectation-Maximization. CSIT Costas Panagiotakis, Evangelia Daskalaki, Harris Papadakis, Paraskevi Fragopoulou
2022	—	`conf`	The Tourist Trip Design Problem with POI Categories via an Expectation-Maximization Based Method. RecTour@RecSys Costas Panagiotakis, Evangelia Daskalaki, Harris Papadakis, Paraskevi Fragopoulou
2021	J	`jnl`	A dual hybrid recommender system based on SCoR and the random forest. Comput. Sci. Inf. Syst. Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
2021	J	`jnl`	A survey of Twitter research: Data model, graph structure, sentiment analysis and attacks. Expert Syst. Appl. Despoina Antonakaki, Paraskevi Fragopoulou, Sotiris Ioannidis
2021	J	`jnl`	DTEC: Dual Training Error based Correction approach for recommender systems. Softw. Impacts Costas Panagiotakis, Harris Papadakis, Antonis Papagrigoriou, Paraskevi Fragopoulou
2021	J	`jnl`	Improving recommender systems via a Dual Training Error based Correction approach. Expert Syst. Appl. Costas Panagiotakis, Harris Papadakis, Antonis Papagrigoriou, Paraskevi Fragopoulou
2020	—	`conf`	A User Training Error based Correction Approach combined with the Synthetic Coordinate Recommender System. UMAP (Adjunct Publication) Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
2020	J	`jnl`	Discovery and classification of Twitter bots. CoRR Alexander Shevtsov, Maria Oikonomidou, Despoina Antonakaki, Polyvios Pratikakis, Alexandros Kanterakis, Sotiris Ioannidis, Paraskevi Fragopoulou
2020	J	`jnl`	Investigating the dynamics of illegal online activity: The power of reporting, dark web, and related legislation. Comput. Law Secur. Rev. Emmanouela Kokolaki, Evangelia Daskalaki, Katerina Psaroudaki, Meltini Christodoulaki, Paraskevi Fragopoulou
2020	—	`conf`	Personalized Video Summarization Based Exclusively on User Preferences. ECIR (2) Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
2020	J	`jnl`	Understanding the online behavior and risks of children: results of a large-scale national survey on 10-18 year olds. CoRR Evangelia Daskalaki, Katerina Psaroudaki, Marieva Karkanaki, Paraskevi Fragopoulou
2020	J	`jnl`	Unsupervised and supervised methods for the detection of hurriedly created profiles in recommender systems. Int. J. Mach. Learn. Cybern. Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
2019	Misc	`conf`	Context-Driven Tour Planning Service: An Approach Based on Synthetic Coordinates Recommendation. FRUCT Alexey M. Kashevnik, Sergei Mikhailov, Harris Papadakis, Paraskevi Fragopoulou
2018	—	`conf`	A Mobile Application for Personalized Movie Recommendations with Dynamic Updates. IEEE Conf. on Intelligent Systems Harris Papadakis, Paraskevi Fragopoulou, Nikos Michalakis, Costas Panagiotakis
2018	—	`conf`	Detection of Hurriedly Created Abnormal Profiles in Recommender Systems. IEEE Conf. on Intelligent Systems Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
2018	J	`jnl`	EL-SIC: Focus on Better and Safer Online Experiences for Kids. ERCIM News Evangelia Daskalaki, Katerina Psaroudaki, Paraskevi Fragopoulou
2018	J	`jnl`	Utilizing the average node degree to assess the temporal growth rate of Twitter. Soc. Netw. Anal. Min. Despoina Antonakaki, Sotiris Ioannidis, Paraskevi Fragopoulou
2017	—	`conf`	Movie SCoRe: Personalized Movie Recommendation on Mobile Devices. PCI Harris Papadakis, Nikos Michalakis, Paraskevi Fragopoulou, Costas Panagiotakis, Athanasios G. Malamos
2017	—	`conf`	SAMPAC: Socially-Aware collaborative Multi-Party Access Control. CODASPY Panagiotis Ilia, Barbara Carminati, Elena Ferrari, Paraskevi Fragopoulou, Sotiris Ioannidis
2017	J	`jnl`	SCoR: A Synthetic Coordinate based Recommender system. Expert Syst. Appl. Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
2016	J	`jnl`	Exploiting abused trending topics to identify spam campaigns in Twitter. Soc. Netw. Anal. Min. Despoina Antonakaki, Iasonas Polakis, Elias Athanasopoulos, Sotiris Ioannidis, Paraskevi Fragopoulou
2016	B	`conf`	Investigating the complete corpus of referendum and elections tweets. ASONAM Despoina Antonakaki, Dimitris Spiliotopoulos, Christos V. Samaras, Sotiris Ioannidis, Paraskevi Fragopoulou
2016	—	`conf`	Motivation Effect of Social Media Posts about Well-being and Healthy Living. PETRA Dimitris Spiliotopoulos, Despoina Antonakaki, Sotiris Ioannidis, Paraskevi Fragopoulou
2016	—	`conf`	Usability Evaluation of Accessible Complex Graphs. ICCHP (1) Dimitris Spiliotopoulos, Despoina Antonakaki, Sotiris Ioannidis, Paraskevi Fragopoulou
2015	J	`jnl`	Evolving Twitter: an experimental analysis of graph properties of the social graph. CoRR Despoina Antonakaki, Sotiris Ioannidis, Paraskevi Fragopoulou
2015	B	`conf`	Local Community Detection via Flow Propagation. ASONAM Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
2015	—	`conf`	Social Forensics: Searching for Needles in Digital Haystacks. BADGERS@RAID Iasonas Polakis, Panagiotis Ilia, Zacharias Tzermias, Sotiris Ioannidis, Paraskevi Fragopoulou
2014	—	`conf`	CoViFlowPro: A Community Visualization method based on a Flow Propagation Algorithm. BICT Paraskevi Fragopoulou, Costas Panagiotakis, Harris Papadakis
2014	—	`conf`	Think Before RT: An Experimental Study of Abusing Twitter Trends. SocInfo Workshops Despoina Antonakaki, Iasonas Polakis, Elias Athanasopoulos, Sotiris Ioannidis, Paraskevi Fragopoulou
2013	B	`conf`	A distributed algorithm for community detection in large graphs. ASONAM Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
2013	J	`jnl`	ITA: Innocuous Topology Awareness for Unstructured P2P Networks. IEEE Trans. Parallel Distributed Syst. Harris Papadakis, Paraskevi Fragopoulou, Evangelos P. Markatos, Mema Roussopoulos
2013	—	`conf`	Interactive Image Segmentation via Graph Clustering and Synthetic Coordinates Modeling. CAIP (1) Costas Panagiotakis, Harris Papadakis, Elias Grinias, Nikos Komodakis, Paraskevi Fragopoulou, Georgios Tziritas
2013	J	`jnl`	Interactive image segmentation based on synthetic graph coordinates. Pattern Recognit. Costas Panagiotakis, Harris Papadakis, Ilias Grinias, Nikos Komodakis, Paraskevi Fragopoulou, Georgios Tziritas
2013	J	`jnl`	Locating communities on graphs with variations in community sizes. J. Supercomput. Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
2013	—	`conf`	Voting Clustering and Key Points Selection. CAIP (1) Costas Panagiotakis, Paraskevi Fragopoulou
2012	B	`conf`	Evolution of User Activity and Community Formation in an Online Social Network. ASONAM Andreas Kalaitzakis, Harris Papadakis, Paraskevi Fragopoulou
2012	J	`jnl`	Guest Editors Note Special Issue on Community Structures in Networks: Methods and Applications. Parallel Process. Lett. Paraskevi Fragopoulou, Artur Andrzejak, Carlo Mastroianni, Costas Panagiotakis
2012	J	`jnl`	Locating Communities on Real Dataset Graphs Using Synthetic Coordinates. Parallel Process. Lett. Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
2012	—	`conf`	Topic 6: Grid, Cluster and Cloud Computing. Euro-Par Erik Elmroth, Paraskevi Fragopoulou, Artur Andrzejak, Ivona Brandic, Karim Djemame, Paolo Romano
2011	—	`conf`	Community detection in collaborative environments: a comparative analysis. PETRA Andreas Kalaitzakis, Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
2011	C	`conf`	Distributed community detection: Finding neighborhoods in a complex world using synthetic coordinates. ISCC Harris Papadakis, Paraskevi Fragopoulou, Costas Panagiotakis
2010	—	`conf`	2010 CoreGRID/ERCIM Workshop on Grids, Clouds and P2P Computing. Euro-Par Workshops Marco Danelutto, Frédéric Desprez, Paraskevi Fragopoulou, Alan Stewart
2010	—	`ed.`	Proceedings of the 2nd Workshop on Bio-Inspired Algorithms for Distributed Systems, BADS '10, Washington, DC, USA, June 11, 2010 BADS@ICAC Gianluigi Folino, Paraskevi Fragopoulou, Carlo Mastroianni, Junichi Suzuki
2010	J	`jnl`	SafeLine: reporting illegal internet content. Inf. Manag. Comput. Secur. Meltini Christodoulaki, Paraskevi Fragopoulou
2009	—	`conf`	An Experimental Evaluation of the DQ-DHT Algorithm in a Grid Information Service. CoreGRID@Euro-Par Harris Papadakis, Paolo Trunfio, Domenico Talia, Paraskevi Fragopoulou
2009	J	`jnl`	Hash-Based Overlay Partitioning in Unstructured Peer-to-Peer Systems. Parallel Process. Lett. Harris Papadakis, Paraskevi Fragopoulou, Evangelos P. Markatos, Marios D. Dikaiakos, Alexandros Labrinidis
2009	—	`conf`	Imbuing Unstructured P2P Systems with Non-Intrusive Topology Awareness. Peer-to-Peer Computing Harris Papadakis, Mema Roussopoulos, Paraskevi Fragopoulou, Evangelos P. Markatos
2009	—	`conf`	Self-* and Adaptive Mechanisms for Large Scale Distributed Systems. CoreGRID@Euro-Par Paraskevi Fragopoulou, Carlo Mastroianni, Rubén Santiago Montero, Artur Andrjezak, Derrick Kondo
2008	—	`conf`	A Scalable Architecture For Discovery And Planning In P2P Service Networks. CoreGRID Integration Workshop Agostino Forestiero, Carlo Mastroianni, Harris Papadakis, Paraskevi Fragopoulou, Alberto Troisi, Eugenio Zimeo
2008	J	`jnl`	Cooperative Self-Composition and Discovery of Grid Services in P2P Networks. Parallel Process. Lett. Eugenio Zimeo, Alberto Troisi, Harris Papadakis, Paraskevi Fragopoulou, Agostino Forestiero, Carlo Mastroianni
2008	—	`ed.`	Grid Computing - Achievements and Prospects: CoreGRID Integration Workshop 2008, Hersonissos, Crete, Greece, April 2-4, 2008 CoreGRID Integration Workshop Sergei Gorlatch, Paraskevi Fragopoulou, Thierry Priol
2008	—	`ed.`	Making Grids Work: Proceedings of the CoreGRID Workshop on Programming Models Grid and P2P System Architecture Grid Systems, Tools and Environments, 12-13 June 2007, Heraklion, Crete, Greece CoreGRID Workshop - Making Grids Work Marco Danelutto, Paraskevi Fragopoulou, Vladimir Getov
2008	—	`conf`	Topic 6: Grid and Cluster Computing. Euro-Par Marco Danelutto, Juan Touriño, Mark Baker, Rajkumar Buyya, Paraskevi Fragopoulou, Christian Pérez, Erich Schikuta
2007	—	`conf`	Design and Implementation of a Hybrid P2P-based Grid Resource Discovery System. CoreGRID Workshop - Making Grids Work Harris Papadakis, Paolo Trunfio, Domenico Talia, Paraskevi Fragopoulou
2007	J	`jnl`	Failure Management in Grids: the Case of the EGEE Infrastructure. Parallel Process. Lett. Kyriakos Neocleous, Marios D. Dikaiakos, Paraskevi Fragopoulou, Evangelos P. Markatos
2007	J	`jnl`	Peer-to-Peer resource discovery in Grids: Models and systems. Future Gener. Comput. Syst. Paolo Trunfio, Domenico Talia, Harris Papadakis, Paraskevi Fragopoulou, Matteo Mordacchini, M. Pennanen, Konstantin Popov, Vladimir Vlassov, Seif Haridi
2006	J	`jnl`	Approximation algorithms for the k-source multicast tree construction problem. Networks Paraskevi Fragopoulou
2006	—	`conf`	Divide et Impera: Partitioning Unstructured Peer-to-Peer Systems to Improve Resource Location. CoreGRID Integration Workshop Harris Papadakis, Paraskevi Fragopoulou, Evangelos P. Markatos, Marios D. Dikaiakos, Alexandros Labrinidis
2005	B	`conf`	Multi-source Trees: Algorithms for Minimizing Eccentricity Cost Metrics. ISAAC Paraskevi Fragopoulou, Stavros D. Nikolopoulos, Leonidas Palios
2005	J	`jnl`	The Complexity of the Maximal Requests Satisfaction Problem in Multipoint Communication. Parallel Process. Lett. Dominique Barth, Pascal Berthomé, Paraskevi Fragopoulou
2002	J	`jnl`	Compact Multicast Algorithms on Grids and Tori Without Intermediate Buffering. Parallel Process. Lett. Dominique Barth, Paraskevi Fragopoulou
2002	J	`jnl`	Uniform emulations of Cartesian-product and Cayley graphs. Discret. Appl. Math. Dominique Barth, Paraskevi Fragopoulou, Marie-Claude Heydemann
2001	J	`jnl`	Minimum Eccentricity Multicast Trees. Discret. Math. Theor. Comput. Sci. David W. Krumme, Paraskevi Fragopoulou
2000	J	`jnl`	Multi-Source Spanning Tree Problems. J. Interconnect. Networks Arthur M. Farley, Paraskevi Fragopoulou, David W. Krumme, Andrzej Proskurowski, Dana Richards
1999	Misc	`conf`	Compact Multicast Algorithms on Grids Without Intermediate Buffering. PDPTA Dominique Barth, Paraskevi Fragopoulou
1999	B	`conf`	Multi-Source Spanning Tree Problems. SIROCCO Arthur M. Farley, Paraskevi Fragopoulou, David W. Krumme, Andrzej Proskurowski, Dana Richards
1998	J	`jnl`	Spanning subgraphs with applications to communication on a subclass of the Cayley-graph-based networks. Discret. Appl. Math. Paraskevi Fragopoulou, Selim G. Akl
1996	J	`jnl`	Edge-Disjoint Spanning Trees on the Star Network with Applications to Fault Tolerance. IEEE Trans. Computers Paraskevi Fragopoulou, Selim G. Akl
1996	J	`jnl`	Optimal Communication Primitives on the Generalized Hypercube Network. J. Parallel Distributed Comput. Paraskevi Fragopoulou, Selim G. Akl, Henk Meijer
1996	—	`conf`	Performance Evaluation and Modeling of Reduction Operations on the IBM RS/6000 SP Parallel Computer. PARA Paraskevi Fragopoulou, Ole H. Nielsen
1996	J	`jnl`	Spanning Subgraphs with Applications to Communication on the Multidimensional Torus Network. Parallel Comput. Paraskevi Fragopoulou, Selim G. Akl
1995	—	`conf`	Efficient algorithms for global data communication on the multidimensional torus network. IPPS Paraskevi Fragopoulou, Selim G. Akl
1995	—	`conf`	Fault tolerant communication algorithms on the star network using disjoint paths. HICSS (2) Paraskevi Fragopoulou, Selim G. Akl
1995	J	`jnl`	Optimal Communication algorithms on Star Graphs Using Spanning Tree Constructions. J. Parallel Distributed Comput. Paraskevi Fragopoulou, Selim G. Akl
1994	J	`jnl`	A Parallel Algorithm for Computing Fourier Transforms on the Star Graph. IEEE Trans. Parallel Distributed Syst. Paraskevi Fragopoulou, Selim G. Akl
1993	J	`jnl`	On the Comparative Powers of the 2D-Parbs and the CRCW-Pram Models. Parallel Process. Lett. Paraskevi Fragopoulou
1993	J	`jnl`	On the Efficient Summation of N Numbers on an N-Processor Reconfigurable Mesh. Parallel Process. Lett. Paraskevi Fragopoulou
1993	—	`conf`	Optimal Communication Algorithms on the Star Interconnection Network. SPDP Paraskevi Fragopoulou, Selim G. Akl
1991	—	`conf`	A Parallel Algorithm For Computing Fourier Transforms On the Star Graph. ICPP (3) Paraskevi Fragopoulou, Selim G. Akl