Symeon Papadopoulos


2009

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Lexical Graphs for Improved Contextual Ad Recommendation
Symeon Papadopoulos | Fotis Menemenis | Yiannis Kompatsiaris | Ben Bratu
Advances in Information Retrieval, 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings

2011

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City exploration by use of spatio-temporal analysis and clustering of user contributed photos
Symeon Papadopoulos | Christos Zigkolis | Stefanos Kapiris | Yiannis Kompatsiaris | Athena Vakali
Proceedings of the 1st International Conference on Multimedia Retrieval, ICMR 2011, Trento, Italy, April 18 - 20, 2011

2012

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SocialSensor: sensing user generated input for improved media discovery and experience
Sotiris Diplaris | Symeon Papadopoulos | Ioannis Kompatsiaris | Ayse Göker | Andrew MacFarlane | Jochen Spangenberg | Hakim Hacid | Linas Maknavicius | Matthias Klusch
Proceedings of the 21st World Wide Web Conference, WWW 2012, Lyon, France, April 16-20, 2012 (Companion Volume)

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"Making sense of it all": an attempt to aid journalists in analysing and filtering user generated content
Sotiris Diplaris | Symeon Papadopoulos | Ioannis Kompatsiaris | Nicolaus Heise | Jochen Spangenberg | Nic Newman | Hakim Hacid
Proceedings of the 21st World Wide Web Conference, WWW 2012, Lyon, France, April 16-20, 2012 (Companion Volume)

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Social event detection using multimodal clustering and integrating supervisory signals
Georgios Petkos | Symeon Papadopoulos | Yiannis Kompatsiaris
International Conference on Multimedia Retrieval, ICMR '12, Hong Kong, China, June 5-8, 2012

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Cluster-based photo browsing and tagging on the go
Symeon Papadopoulos | Juxhin Bakalli | Yiannis Kompatsiaris | Emmanouil Schinas
International Conference on Multimedia Retrieval, ICMR '12, Hong Kong, China, June 5-8, 2012

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CERTH's Participation at the Photo Annotation Task of ImageCLEF 2012
Eleni Mantziou | Georgios Petkos | Symeon Papadopoulos | Christos Sagonas | Yiannis Kompatsiaris
CLEF 2012 Evaluation Labs and Workshop, Online Working Notes, Rome, Italy, September 17-20, 2012

2014

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Challenges of computational verification in social multimedia
Christina Boididou | Symeon Papadopoulos | Yiannis Kompatsiaris | Steve Schifferes | Nic Newman
23rd International World Wide Web Conference, WWW '14, Seoul, Republic of Korea, April 7-11, 2014, Companion Volume

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Proceedings of the SNOW 2014 Data Challenge co-located with 23rd International World Wide Web Conference (WWW 2014), Seoul, Korea, April 8, 2014

Proceedings of the SNOW 2014 Data Challenge co-located with 23rd International World Wide Web Conference (WWW 2014), Seoul, Korea, April 8, 2014

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SNOW 2014 Data Challenge: Assessing the Performance of News Topic Detection Methods in Social Media
Symeon Papadopoulos | David P. A. Corney | Luca Maria Aiello
Proceedings of the SNOW 2014 Data Challenge co-located with 23rd International World Wide Web Conference (WWW 2014), Seoul, Korea, April 8, 2014

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Two-level Message Clustering for Topic Detection in Twitter
Georgios Petkos | Symeon Papadopoulos | Yiannis Kompatsiaris
Proceedings of the SNOW 2014 Data Challenge co-located with 23rd International World Wide Web Conference (WWW 2014), Seoul, Korea, April 8, 2014

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Proceedings of the 1st International Workshop on Social Multimedia and Storytelling co-located with ACM International Conference on Multimedia Retrieval (ICMR 2014), Glasgow, Scotland, UK, April 1, 2014

Proceedings of the 1st International Workshop on Social Multimedia and Storytelling co-located with ACM International Conference on Multimedia Retrieval (ICMR 2014), Glasgow, Scotland, UK, April 1, 2014

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StreamGrid: Summarization of Large Scale Events using Topic Modelling and Temporal Analysis
Manos Schinas | Symeon Papadopoulos | Yiannis Kompatsiaris | Pericles A. Mitkas
Proceedings of the 1st International Workshop on Social Multimedia and Storytelling co-located with ACM International Conference on Multimedia Retrieval (ICMR 2014), Glasgow, Scotland, UK, April 1, 2014

2015

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Assessing the Reliability of Facebook User Profiling
Thomas Theodoridis | Symeon Papadopoulos | Yiannis Kompatsiaris
Proceedings of the 24th International Conference on World Wide Web Companion, WWW 2015, Florence, Italy, May 18-22, 2015 - Companion Volume

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Visual Event Summarization on Social Media using Topic Modelling and Graph-based Ranking Algorithms
Manos Schinas | Symeon Papadopoulos | Yiannis Kompatsiaris | Pericles A. Mitkas
Proceedings of the 5th ACM on International Conference on Multimedia Retrieval, Shanghai, China, June 23-26, 2015

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Improving Diversity in Image Search via Supervised Relevance Scoring
Eleftherios Spyromitros Xioufis | Symeon Papadopoulos | Alexandru-Lucian Gînsca | Adrian Popescu | Yiannis Kompatsiaris | Ioannis P. Vlahavas
Proceedings of the 5th ACM on International Conference on Multimedia Retrieval, Shanghai, China, June 23-26, 2015

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10th European Summer School in Information Retrieval (ESSIR 2015)
Theodora Tsikrika | Symeon Papadopoulos | Stefanos Vrochidis | Yiannis Kompatsiaris
2015 Volume 49 Issue 2

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Learning to detect concepts with Approximate Laplacian Eigenmaps in large-scale and online settings
Eleni Mantziou | Symeon Papadopoulos | Yiannis Kompatsiaris
2015 Volume 4 Issue 2

2016

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Predicting News Popularity by Mining Online Discussions
Georgios Rizos | Symeon Papadopoulos | Yiannis Kompatsiaris
Proceedings of the 25th International Conference on World Wide Web, WWW 2016, Montreal, Canada, April 11-15, 2016, Companion Volume

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Personalized Privacy-aware Image Classification
Eleftherios Spyromitros Xioufis | Symeon Papadopoulos | Adrian Popescu | Yiannis Kompatsiaris
Proceedings of the 2016 ACM on International Conference on Multimedia Retrieval, ICMR 2016, New York, New York, USA, June 6-9, 2016

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Multimodal Event Detection and Summarization in Large Scale Image Collections
Manos Schinas | Symeon Papadopoulos | Georgios Petkos | Yiannis Kompatsiaris | Pericles A. Mitkas
Proceedings of the 2016 ACM on International Conference on Multimedia Retrieval, ICMR 2016, New York, New York, USA, June 6-9, 2016

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Overview of the Special Issue on Trust and Veracity of Information in Social Media
Symeon Papadopoulos | Kalina Bontcheva | Eva Jaho | Mihai Lupu | Carlos Castillo
2016 Volume 34 Issue 3

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MGraph: multimodal event summarization in social media using topic models and graph-based ranking
Manos Schinas | Symeon Papadopoulos | Yiannis Kompatsiaris | Pericles A. Mitkas
2016 Volume 5 Issue 1

2017

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Learning to Detect Misleading Content on Twitter
Christina Boididou | Symeon Papadopoulos | Lazaros Apostolidis | Yiannis Kompatsiaris
Proceedings of the 2017 ACM on International Conference on Multimedia Retrieval, ICMR 2017, Bucharest, Romania, June 6-9, 2017

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Web Video Verification using Contextual Cues
Olga Papadopoulou | Markos Zampoglou | Symeon Papadopoulos | Yiannis Kompatsiaris
Proceedings of the 2nd International Workshop on Multimedia Forensics and Security, MFSec@ICMR 2017, Bucharest, Romania, June 6, 2017

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Detection of Terrorism-related Twitter Communities using Centrality Scores
Ilias Gialampoukidis | George Kalpakis | Theodora Tsikrika | Symeon Papadopoulos | Stefanos Vrochidis | Ioannis Kompatsiaris
Proceedings of the 2nd International Workshop on Multimedia Forensics and Security, MFSec@ICMR 2017, Bucharest, Romania, June 6, 2017

2018

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Adaptive Sensitive Reweighting to Mitigate Bias in Fairness-aware Classification
Emmanouil Krasanakis | Eleftherios Spyromitros Xioufis | Symeon Papadopoulos | Yiannis Kompatsiaris
Proceedings of the 2018 World Wide Web Conference on World Wide Web, WWW 2018, Lyon, France, April 23-27, 2018

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VenueRank: Identifying Venues that Contribute to Artist Popularity
Emmanouil Krasanakis | Emmanouil Schinas | Symeon Papadopoulos | Yiannis Kompatsiaris | Pericles A. Mitkas
Proceedings of the 19th International Society for Music Information Retrieval Conference, ISMIR 2018, Paris, France, September 23-27, 2018

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Location Extraction from Social Media: Geoparsing, Location Disambiguation, and Geotagging
Stuart E. Middleton | Giorgos Kordopatis-Zilos | Symeon Papadopoulos | Yiannis Kompatsiaris
2018 Volume 36 Issue 4

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Detection and visualization of misleading content on Twitter
Christina Boididou | Symeon Papadopoulos | Markos Zampoglou | Lazaros Apostolidis | Olga Papadopoulou | Yiannis Kompatsiaris
2018 Volume 7 Issue 1

2019

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Data-Driven Song Recognition Estimation Using Collective Memory Dynamics Models
Christos Koutlis | Manos Schinas | Vasiliki Gkatziaki | Symeon Papadopoulos | Yiannis Kompatsiaris
Proceedings of the 20th International Society for Music Information Retrieval Conference, ISMIR 2019, Delft, The Netherlands, November 4-8, 2019

2020

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Boosted seed oversampling for local community ranking
Emmanouil Krasanakis | Emmanouil Schinas | Symeon Papadopoulos | Yiannis Kompatsiaris | Andreas L. Symeonidis
2020 Volume 57 Issue 2

2021

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Leveraging EfficientNet and Contrastive Learning for Accurate Global-scale Location Estimation
Giorgos Kordopatis-Zilos | Panagiotis Galopoulos | Symeon Papadopoulos | Ioannis Kompatsiaris
ICMR '21: International Conference on Multimedia Retrieval, Taipei, Taiwan, August 21-24, 2021