Paraskevi Fragopoulou

Publication Activity (10 Years)

Years Active: 1991-2024
Publications (10 Years): 27

Top Topics

Recommender Systems

Top Venues

Expert Syst. Appl.

Soc. Netw. Anal. Min.

Comput. Sci. Inf. Syst.

Publications

Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou, Georgios Chalkiadakis, Errikos Streviniotis, Ioannis Panagiotis Ziogas, Michail Koutsmanis, Panagiotis Bariamis
Visit planner: A personalized mobile trip design application based on a hybrid recommendation model. Comput. Sci. Inf. Syst. 21 (3) (2024)
Costas Panagiotakis, Evangelia Daskalaki, Harris Papadakis, Paraskevi Fragopoulou
Personalized Itinerary Recommendation via Expectation-Maximization. CSIT (2022)
Harris Papadakis, Antonis Papagrigoriou, Costas Panagiotakis, Eleftherios Kosmas, Paraskevi Fragopoulou
Collaborative filtering recommender systems taxonomy. Knowl. Inf. Syst. 64 (1) (2022)
Costas Panagiotakis, Evangelia Daskalaki, Harris Papadakis, Paraskevi Fragopoulou
The Tourist Trip Design Problem with POI Categories via an Expectation-Maximization Based Method. RecTour@RecSys (2022)
Alexander Shevtsov, Maria Oikonomidou, Despoina Antonakaki, Polyvios Pratikakis, Alexandros Kanterakis, Paraskevi Fragopoulou, Sotiris Ioannidis
Discovery and Classification of Twitter Bots. SN Comput. Sci. 3 (3) (2022)
Costas Panagiotakis, Harris Papadakis, Antonis Papagrigoriou, Paraskevi Fragopoulou
DTEC: Dual Training Error based Correction approach for recommender systems. Softw. Impacts 9 (2021)
Despoina Antonakaki, Paraskevi Fragopoulou, Sotiris Ioannidis
A survey of Twitter research: Data model, graph structure, sentiment analysis and attacks. Expert Syst. Appl. 164 (2021)
Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
A dual hybrid recommender system based on SCoR and the random forest. Comput. Sci. Inf. Syst. 18 (1) (2021)
Costas Panagiotakis, Harris Papadakis, Antonis Papagrigoriou, Paraskevi Fragopoulou
Improving recommender systems via a Dual Training Error based Correction approach. Expert Syst. Appl. 183 (2021)
Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
A User Training Error based Correction Approach combined with the Synthetic Coordinate Recommender System. UMAP (Adjunct Publication) (2020)
Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
Unsupervised and supervised methods for the detection of hurriedly created profiles in recommender systems. Int. J. Mach. Learn. Cybern. 11 (9) (2020)
Evangelia Daskalaki, Katerina Psaroudaki, Marieva Karkanaki, Paraskevi Fragopoulou
Understanding the online behavior and risks of children: results of a large-scale national survey on 10-18 year olds. CoRR (2020)
Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
Personalized Video Summarization Based Exclusively on User Preferences. ECIR (2) (2020)
Emmanouela Kokolaki, Evangelia Daskalaki, Katerina Psaroudaki, Meltini Christodoulaki, Paraskevi Fragopoulou
Investigating the dynamics of illegal online activity: The power of reporting, dark web, and related legislation. Comput. Law Secur. Rev. 38 (2020)
Alexander Shevtsov, Maria Oikonomidou, Despoina Antonakaki, Polyvios Pratikakis, Alexandros Kanterakis, Sotiris Ioannidis, Paraskevi Fragopoulou
Discovery and classification of Twitter bots. CoRR (2020)
Alexey M. Kashevnik, Sergei Mikhailov, Harris Papadakis, Paraskevi Fragopoulou
Context-Driven Tour Planning Service: An Approach Based on Synthetic Coordinates Recommendation. FRUCT (2019)
Evangelia Daskalaki, Katerina Psaroudaki, Paraskevi Fragopoulou
EL-SIC: Focus on Better and Safer Online Experiences for Kids. ERCIM News 2018 (115) (2018)
Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
Detection of Hurriedly Created Abnormal Profiles in Recommender Systems. IEEE Conf. on Intelligent Systems (2018)
Harris Papadakis, Paraskevi Fragopoulou, Nikos Michalakis, Costas Panagiotakis
A Mobile Application for Personalized Movie Recommendations with Dynamic Updates. IEEE Conf. on Intelligent Systems (2018)
Despoina Antonakaki, Sotiris Ioannidis, Paraskevi Fragopoulou
Utilizing the average node degree to assess the temporal growth rate of Twitter. Soc. Netw. Anal. Min. 8 (1) (2018)
Panagiotis Ilia, Barbara Carminati, Elena Ferrari, Paraskevi Fragopoulou, Sotiris Ioannidis
SAMPAC: Socially-Aware collaborative Multi-Party Access Control. CODASPY (2017)
Harris Papadakis, Nikos Michalakis, Paraskevi Fragopoulou, Costas Panagiotakis, Athanasios G. Malamos
Movie SCoRe: Personalized Movie Recommendation on Mobile Devices. PCI (2017)
Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
SCoR: A Synthetic Coordinate based Recommender system. Expert Syst. Appl. 79 (2017)
Dimitris Spiliotopoulos, Despoina Antonakaki, Sotiris Ioannidis, Paraskevi Fragopoulou
Motivation Effect of Social Media Posts about Well-being and Healthy Living. PETRA (2016)
Despoina Antonakaki, Dimitris Spiliotopoulos, Christos V. Samaras, Sotiris Ioannidis, Paraskevi Fragopoulou
Investigating the complete corpus of referendum and elections tweets. ASONAM (2016)
Despoina Antonakaki, Iasonas Polakis, Elias Athanasopoulos, Sotiris Ioannidis, Paraskevi Fragopoulou
Exploiting abused trending topics to identify spam campaigns in Twitter. Soc. Netw. Anal. Min. 6 (1) (2016)
Dimitris Spiliotopoulos, Despoina Antonakaki, Sotiris Ioannidis, Paraskevi Fragopoulou
Usability Evaluation of Accessible Complex Graphs. ICCHP (1) (2016)
Iasonas Polakis, Panagiotis Ilia, Zacharias Tzermias, Sotiris Ioannidis, Paraskevi Fragopoulou
Social Forensics: Searching for Needles in Digital Haystacks. BADGERS@RAID (2015)
Costas Panagiotakis, Harris Papadakis, Paraskevi Fragopoulou
Local Community Detection via Flow Propagation. ASONAM (2015)
Despoina Antonakaki, Sotiris Ioannidis, Paraskevi Fragopoulou
Evolving Twitter: an experimental analysis of graph properties of the social graph. CoRR (2015)
Paraskevi Fragopoulou, Costas Panagiotakis, Harris Papadakis
CoViFlowPro: A Community Visualization method based on a Flow Propagation Algorithm. BICT (2014)
Despoina Antonakaki, Iasonas Polakis, Elias Athanasopoulos, Sotiris Ioannidis, Paraskevi Fragopoulou
Think Before RT: An Experimental Study of Abusing Twitter Trends. SocInfo Workshops (2014)
Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
A distributed algorithm for community detection in large graphs. ASONAM (2013)
Harris Papadakis, Paraskevi Fragopoulou, Evangelos P. Markatos, Mema Roussopoulos
ITA: Innocuous Topology Awareness for Unstructured P2P Networks. IEEE Trans. Parallel Distributed Syst. 24 (8) (2013)
Costas Panagiotakis, Harris Papadakis, Elias Grinias, Nikos Komodakis, Paraskevi Fragopoulou, Georgios Tziritas
Interactive Image Segmentation via Graph Clustering and Synthetic Coordinates Modeling. CAIP (1) (2013)
Costas Panagiotakis, Harris Papadakis, Ilias Grinias, Nikos Komodakis, Paraskevi Fragopoulou, Georgios Tziritas
Interactive image segmentation based on synthetic graph coordinates. Pattern Recognit. 46 (11) (2013)
Costas Panagiotakis, Paraskevi Fragopoulou
Voting Clustering and Key Points Selection. CAIP (1) (2013)
Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
Locating communities on graphs with variations in community sizes. J. Supercomput. 65 (2) (2013)
Paraskevi Fragopoulou, Artur Andrzejak, Carlo Mastroianni, Costas Panagiotakis
Guest Editors Note Special Issue on Community Structures in Networks: Methods and Applications. Parallel Process. Lett. 22 (1) (2012)
Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
Locating Communities on Real Dataset Graphs Using Synthetic Coordinates. Parallel Process. Lett. 22 (1) (2012)
Erik Elmroth, Paraskevi Fragopoulou, Artur Andrzejak, Ivona Brandic, Karim Djemame, Paolo Romano
Topic 6: Grid, Cluster and Cloud Computing. Euro-Par (2012)
Andreas Kalaitzakis, Harris Papadakis, Paraskevi Fragopoulou
Evolution of User Activity and Community Formation in an Online Social Network. ASONAM (2012)
Harris Papadakis, Paraskevi Fragopoulou, Costas Panagiotakis
Distributed community detection: Finding neighborhoods in a complex world using synthetic coordinates. ISCC (2011)
Andreas Kalaitzakis, Harris Papadakis, Costas Panagiotakis, Paraskevi Fragopoulou
Community detection in collaborative environments: a comparative analysis. PETRA (2011)
Meltini Christodoulaki, Paraskevi Fragopoulou
SafeLine: reporting illegal internet content. Inf. Manag. Comput. Secur. 18 (1) (2010)
Marco Danelutto, Frédéric Desprez, Paraskevi Fragopoulou, Alan Stewart
2010 CoreGRID/ERCIM Workshop on Grids, Clouds and P2P Computing. Euro-Par Workshops (2010)
Harris Papadakis, Mema Roussopoulos, Paraskevi Fragopoulou, Evangelos P. Markatos
Imbuing Unstructured P2P Systems with Non-Intrusive Topology Awareness. Peer-to-Peer Computing (2009)
Paraskevi Fragopoulou, Carlo Mastroianni, Rubén Santiago Montero, Artur Andrjezak, Derrick Kondo
Self-* and Adaptive Mechanisms for Large Scale Distributed Systems. CoreGRID@Euro-Par (2009)
Harris Papadakis, Paolo Trunfio, Domenico Talia, Paraskevi Fragopoulou
An Experimental Evaluation of the DQ-DHT Algorithm in a Grid Information Service. CoreGRID@Euro-Par (2009)
Harris Papadakis, Paraskevi Fragopoulou, Evangelos P. Markatos, Marios D. Dikaiakos, Alexandros Labrinidis
Hash-Based Overlay Partitioning in Unstructured Peer-to-Peer Systems. Parallel Process. Lett. 19 (1) (2009)
Marco Danelutto, Juan Touriño, Mark Baker, Rajkumar Buyya, Paraskevi Fragopoulou, Christian Pérez, Erich Schikuta
Topic 6: Grid and Cluster Computing. Euro-Par (2008)
Eugenio Zimeo, Alberto Troisi, Harris Papadakis, Paraskevi Fragopoulou, Agostino Forestiero, Carlo Mastroianni
Cooperative Self-Composition and Discovery of Grid Services in P2P Networks. Parallel Process. Lett. 18 (3) (2008)
Agostino Forestiero, Carlo Mastroianni, Harris Papadakis, Paraskevi Fragopoulou, Alberto Troisi, Eugenio Zimeo
A Scalable Architecture For Discovery And Planning In P2P Service Networks. CoreGRID Integration Workshop (2008)
Harris Papadakis, Paolo Trunfio, Domenico Talia, Paraskevi Fragopoulou
Design and Implementation of a Hybrid P2P-based Grid Resource Discovery System. CoreGRID Workshop - Making Grids Work (2007)
Kyriakos Neocleous, Marios D. Dikaiakos, Paraskevi Fragopoulou, Evangelos P. Markatos
Failure Management in Grids: the Case of the EGEE Infrastructure. Parallel Process. Lett. 17 (4) (2007)
Paolo Trunfio, Domenico Talia, Harris Papadakis, Paraskevi Fragopoulou, Matteo Mordacchini, M. Pennanen, Konstantin Popov, Vladimir Vlassov, Seif Haridi
Peer-to-Peer resource discovery in Grids: Models and systems. Future Gener. Comput. Syst. 23 (7) (2007)
Harris Papadakis, Paraskevi Fragopoulou, Evangelos P. Markatos, Marios D. Dikaiakos, Alexandros Labrinidis
Divide et Impera: Partitioning Unstructured Peer-to-Peer Systems to Improve Resource Location. CoreGRID Integration Workshop (2006)
Paraskevi Fragopoulou
Approximation algorithms for the k-source multicast tree construction problem. Networks 47 (3) (2006)
Dominique Barth, Pascal Berthomé, Paraskevi Fragopoulou
The Complexity of the Maximal Requests Satisfaction Problem in Multipoint Communication. Parallel Process. Lett. 15 (1-2) (2005)
Paraskevi Fragopoulou, Stavros D. Nikolopoulos, Leonidas Palios
Multi-source Trees: Algorithms for Minimizing Eccentricity Cost Metrics. ISAAC (2005)
Dominique Barth, Paraskevi Fragopoulou
Compact Multicast Algorithms on Grids and Tori Without Intermediate Buffering. Parallel Process. Lett. 12 (1) (2002)
Dominique Barth, Paraskevi Fragopoulou, Marie-Claude Heydemann
Uniform emulations of Cartesian-product and Cayley graphs. Discret. Appl. Math. 116 (1-2) (2002)
David W. Krumme, Paraskevi Fragopoulou
Minimum Eccentricity Multicast Trees. Discret. Math. Theor. Comput. Sci. 4 (2) (2001)
Arthur M. Farley, Paraskevi Fragopoulou, David W. Krumme, Andrzej Proskurowski, Dana Richards
Multi-Source Spanning Tree Problems. J. Interconnect. Networks 1 (1) (2000)
Dominique Barth, Paraskevi Fragopoulou
Compact Multicast Algorithms on Grids Without Intermediate Buffering. PDPTA (1999)
Arthur M. Farley, Paraskevi Fragopoulou, David W. Krumme, Andrzej Proskurowski, Dana Richards
Multi-Source Spanning Tree Problems. SIROCCO (1999)
Paraskevi Fragopoulou, Selim G. Akl
Spanning subgraphs with applications to communication on a subclass of the Cayley-graph-based networks. Discret. Appl. Math. 83 (1-3) (1998)
Paraskevi Fragopoulou, Selim G. Akl
Spanning Subgraphs with Applications to Communication on the Multidimensional Torus Network. Parallel Comput. 22 (7) (1996)
Paraskevi Fragopoulou, Ole H. Nielsen
Performance Evaluation and Modeling of Reduction Operations on the IBM RS/6000 SP Parallel Computer. PARA (1996)
Paraskevi Fragopoulou, Selim G. Akl
Edge-Disjoint Spanning Trees on the Star Network with Applications to Fault Tolerance. IEEE Trans. Computers 45 (2) (1996)
Paraskevi Fragopoulou, Selim G. Akl, Henk Meijer
Optimal Communication Primitives on the Generalized Hypercube Network. J. Parallel Distributed Comput. 32 (2) (1996)
Paraskevi Fragopoulou, Selim G. Akl
Efficient algorithms for global data communication on the multidimensional torus network. IPPS (1995)
Paraskevi Fragopoulou, Selim G. Akl
Optimal Communication algorithms on Star Graphs Using Spanning Tree Constructions. J. Parallel Distributed Comput. 24 (1) (1995)
Paraskevi Fragopoulou, Selim G. Akl
Fault tolerant communication algorithms on the star network using disjoint paths. HICSS (2) (1995)
Paraskevi Fragopoulou, Selim G. Akl
A Parallel Algorithm for Computing Fourier Transforms on the Star Graph. IEEE Trans. Parallel Distributed Syst. 5 (5) (1994)
Paraskevi Fragopoulou
On the Efficient Summation of N Numbers on an N-Processor Reconfigurable Mesh. Parallel Process. Lett. 3 (1993)
Paraskevi Fragopoulou, Selim G. Akl
Optimal Communication Algorithms on the Star Interconnection Network. SPDP (1993)
Paraskevi Fragopoulou
On the Comparative Powers of the 2D-Parbs and the CRCW-Pram Models. Parallel Process. Lett. 3 (1993)
Paraskevi Fragopoulou, Selim G. Akl
A Parallel Algorithm For Computing Fourier Transforms On the Star Graph. ICPP (3) (1991)