Symeon Papadopoulos

Proceedings of the 42nd IEEE International Conference on Distributed Computing Systems, 2022

AutoGF: Runtime Graph Filter Tuning for Community Node Ranking.

[BibT_eX]

[DOI]

Proceedings of the Complex Networks and Their Applications XI, 2022

Leveraging Large-scale Multimedia Datasets to Refine Content Moderation Models.

[BibT_eX]

[DOI]

Proceedings of the Eighth IEEE International Conference on Multimedia Big Data, 2022

2021

Prior Signal Editing for Graph Filter Posterior Fairness Constraints.

[BibT_eX]

[DOI]

CoRR, 2021

Future directions for chatbot research: an interdisciplinary research agenda.

[BibT_eX]

[DOI]

Asbjørn Følstad

Theo B. Araujo

Effie Lai-Chong Law

Petter Bae Brandtzaeg

Raphael Meyer von Wolff

Sebastian Hobert

Ewa Luger

Computing, 2021

Products-6K: A Large-Scale Groceries Product Recognition Dataset.

[BibT_eX]

[DOI]

Kostas Georgiadis

Fotis Kalaganis

Panagiotis Migkotzidis

Proceedings of the PETRA '21: The 14th PErvasive Technologies Related to Assistive Environments Conference, Virtual Event, Greece, 29 June, 2021

Leveraging EfficientNet and Contrastive Learning for Accurate Global-scale Location Estimation.

[BibT_eX]

[DOI]

Panagiotis Galopoulos

Proceedings of the ICMR '21: International Conference on Multimedia Retrieval, 2021

MeVer team tackling Corona virus and Conspiracies using Ensemble Classification.

[BibT_eX]

[DOI]

Olga Papadopoulou

Proceedings of the Working Notes Proceedings of the MediaEval 2021 Workshop, 2021

The AI4Media Project: Use of Next-Generation Artificial Intelligence Technologies for Media Sector Applications.

[BibT_eX]

[DOI]

Filareti Tsalakanidou

Georgios N. Yannakakis

Antonios Liapis

Georgi Kostadinov

Proceedings of the Artificial Intelligence Applications and Innovations, 2021

A holistic approach to optimize and promote Bike-Sharing Systems, through an integrated action plan.

[BibT_eX]

[DOI]

Ioannis Politis

Ioannis Fyrogenis

Efthymis Papadopoulos

Maria-Vasilia Ioannidou

Vasilios Mplesios

Proceedings of the 2021 21st International Conference on Computational Science and Its Applications (ICCSA), Cagliari, Italy, September 13-16, 2021, 2021

A Denoising Hybrid Model for Anomaly Detection in Trajectory Sequences.

[BibT_eX]

[DOI]

Proceedings of the Workshops of the EDBT/ICDT 2021 Joint Conference, 2021

Towards a Privacy Respecting Image-based User Profiling Component.

[BibT_eX]

[DOI]

Panagiotis Galopoulos

Chryssanthi Iakovidou

Vasiliki Gkatziaki

Proceedings of the 18th International Conference on Content-Based Multimedia Indexing, 2021

Operation-wise Attention Network for Tampering Localization Fusion.

[BibT_eX]

[DOI]

Proceedings of the 18th International Conference on Content-Based Multimedia Indexing, 2021

2020

Bias in data-driven artificial intelligence systems - An introductory survey.

[BibT_eX]

[DOI]

WIREs Data Mining Knowl. Discov., 2020

Boosted seed oversampling for local community ranking.

[BibT_eX]

[DOI]

Inf. Process. Manag., 2020

GAP: Geometric Aggregation of Popularity Metrics.

[BibT_eX]

[DOI]

Inf., 2020

A Face Preprocessing Approach for Improved DeepFake Detection.

[BibT_eX]

[DOI]

CoRR, 2020

Bias in Data-driven AI Systems - An Introductory Survey.

[BibT_eX]

[DOI]

CoRR, 2020

LAVARNET: Neural network modeling of causal variable relationships for multivariate time series forecasting.

[BibT_eX]

[DOI]

Appl. Soft Comput., 2020

Unsupervised evaluation of multiple node ranks by reconstructing local structures.

[BibT_eX]

[DOI]

Appl. Netw. Sci., 2020

Investigating the Impact of Pre-processing and Prediction Aggregation on the DeepFake Detection Task.

[BibT_eX]

[DOI]

Proceedings of the 2020 Truth and Trust Online Conference (TTO 2020), 2020

MeVer Team Tackling Corona Virus and 5G Conspiracy Using Ensemble Classification Based on BERT.

[BibT_eX]

[DOI]

Olga Papadopoulou

Proceedings of the Working Notes Proceedings of the MediaEval 2020 Workshop, 2020

Knowledge-Based Fusion for Image Tampering Localization.

[BibT_eX]

[DOI]

Chryssanthi Iakovidou

Proceedings of the Artificial Intelligence Applications and Innovations, 2020

Audio-based Near-Duplicate Video Retrieval with Audio Similarity Learning.

[BibT_eX]

[DOI]

Pavlos Avgoustinakis

Proceedings of the 25th International Conference on Pattern Recognition, 2020

Weverify: Wider and Enhanced Verification for You Project Overview and Tools.

[BibT_eX]

[DOI]

Alexandre Alaphilippe

Kalina Bontcheva

Proceedings of the 2020 IEEE International Conference on Multimedia & Expo Workshops, 2020

i-CHANGE: A Platform for Managing Dockless Bike Sharing Systems.

[BibT_eX]

[DOI]

Efthymis Papadopoulos

Proceedings of the Computational Science and Its Applications - ICCSA 2020, 2020

Applying Fairness Constraints on Graph Node Ranks Under Personalization Bias.

[BibT_eX]

[DOI]

Proceedings of the Complex Networks & Their Applications IX, 2020

Stopping Personalized PageRank without an Error Tolerance Parameter.

[BibT_eX]

[DOI]

Proceedings of the IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 2020

2019

FIVR: Fine-Grained Incident Video Retrieval.

[BibT_eX]

[DOI]

IEEE Trans. Multim., 2019

A corpus of debunked and verified user-generated videos.

[BibT_eX]

[DOI]

Online Inf. Rev., 2019

Social media monitoring tools for air quality accounts.

[BibT_eX]

[DOI]

Lazaros Apostolidis

Proceedings of the 2019 IEEE/WIC/ACM International Conference on Web Intelligence, 2019

WeVerify: Wider and Enhanced Verification for You - Project Overview and Tool Demonstration.

[BibT_eX]

[DOI]

Alexandre Alaphilippe

Kalina Bontcheva

Proceedings of the 2019 Truth and Trust Online Conference (TTO 2019), 2019

Brenda Starr at SemEval-2019 Task 4: Hyperpartisan News Detection.

[BibT_eX]

[DOI]

Olga Papadopoulou

Proceedings of the 13th International Workshop on Semantic Evaluation, 2019

Detecting Tampered Videos with Multimedia Forensics and Deep Learning.

[BibT_eX]

[DOI]

Foteini Markatopoulou

Grégoire Mercier

Despoina Touska

Proceedings of the MultiMedia Modeling - 25th International Conference, 2019

Data-Driven Song Recognition Estimation Using Collective Memory Dynamics Models.

[BibT_eX]

[DOI]

Proceedings of the 20th International Society for Music Information Retrieval Conference, 2019

ViSiL: Fine-Grained Spatio-Temporal Video Similarity Learning.

[BibT_eX]

[DOI]

Proceedings of the 2019 IEEE/CVF International Conference on Computer Vision, 2019

LinkAUC: Unsupervised Evaluation of Multiple Network Node Ranks Using Link Prediction.

[BibT_eX]

[DOI]

Proceedings of the Complex Networks and Their Applications VIII, 2019

Verification of Web Videos Through Analysis of Their Online Context.

[BibT_eX]

[DOI]

Proceedings of the Video Verification in the Fake News Era., 2019

Detecting Manipulations in Video.

[BibT_eX]

[DOI]

Grégoire Mercier

Foteini Markatopoulou

Roger Cozien

Proceedings of the Video Verification in the Fake News Era., 2019

Finding Semantically Related Videos in Closed Collections.

[BibT_eX]

[DOI]

Foteini Markatopoulou

Proceedings of the Video Verification in the Fake News Era., 2019

Finding Near-Duplicate Videos in Large-Scale Collections.

[BibT_eX]

[DOI]

Proceedings of the Video Verification in the Fake News Era., 2019

2018

InVID Fake Video Corpus 2018.

[BibT_eX]

[DOI]

Dataset, October, 2018

Collective Intelligence: Overview.

[BibT_eX]

[DOI]

Proceedings of the Encyclopedia of Social Network Analysis and Mining, 2nd Edition, 2018

easIE: Easy-to-Use Information Extraction for Constructing CSR Databases From the Web.

[BibT_eX]

[DOI]

Ioannis Tsampoulatidis

ACM Trans. Internet Techn., 2018

Location Extraction from Social Media: Geoparsing, Location Disambiguation, and Geotagging.

[BibT_eX]

[DOI]

Stuart E. Middleton

ACM Trans. Inf. Syst., 2018

Verifying information with multimedia content on twitter - A comparative study of automated approaches.

[BibT_eX]

[DOI]

Multim. Tools Appl., 2018

Building and evaluating resources for sentiment analysis in the Greek language.

[BibT_eX]

[DOI]

Lang. Resour. Evaluation, 2018

Content-aware detection of JPEG grid inconsistencies for intuitive image forensics.

[BibT_eX]

[DOI]

Chryssanthi Iakovidou

J. Vis. Commun. Image Represent., 2018

Social Computing for Verifying Social Media Content in Breaking News.

[BibT_eX]

[DOI]

Stuart E. Middleton

IEEE Internet Comput., 2018

Detection and visualization of misleading content on Twitter.

[BibT_eX]

[DOI]

Int. J. Multim. Inf. Retr., 2018

hackAIR: Towards Raising Awareness about Air Quality in Europe by Developing a Collective Online Platform.

[BibT_eX]

[DOI]

Marina Riga

Aristeidis K. Georgoulias

Konstantinos Kourtidis

Georgia Alexandri

ISPRS Int. J. Geo Inf., 2018

Event Detection and Retrieval on Social Media.

[BibT_eX]

[DOI]

CoRR, 2018

Adaptive Sensitive Reweighting to Mitigate Bias in Fairness-aware Classification.

[BibT_eX]

[DOI]

Proceedings of the 2018 World Wide Web Conference on World Wide Web, 2018

Twitter-Based Sensing of City-Level Air Quality.

[BibT_eX]

[DOI]

Proceedings of the 13th IEEE Image, Video, and Multidimensional Signal Processing Workshop, 2018

VenueRank: Identifying Venues that Contribute to Artist Popularity.

[BibT_eX]

[DOI]

Proceedings of the 19th International Society for Music Information Retrieval Conference, 2018

Towards Improved Air Quality Monitoring Using Publicly Available Sky Images.

[BibT_eX]

[DOI]

Aristeidis K. Georgoulias

Georgia Alexandri

Konstantinos Kourtidis

Proceedings of the Multimedia Tools and Applications for Environmental & Biodiversity Informatics, 2018

2017

Geotagging Text Content With Language Models and Feature Mining.

[BibT_eX]

[DOI]

Konstantinos Konstantinidis

Proc. IEEE, 2017

Exploring Twitter communication dynamics with evolving community analysis.

[BibT_eX]

[DOI]

PeerJ Comput. Sci., 2017

Large-scale evaluation of splicing localization algorithms for web images.

[BibT_eX]

[DOI]

Multim. Tools Appl., 2017

Graph-based multimodal clustering for social multimedia.

[BibT_eX]

[DOI]

Multim. Tools Appl., 2017

A Two-Level Classification Approach for Detecting Clickbait Posts using Text-Based Features.

[BibT_eX]

[DOI]

CoRR, 2017

Tunable Plug-In Rules with Reduced Posterior Certainty Loss in Imbalanced Datasets.

[BibT_eX]

[DOI]

Proceedings of the First International Workshop on Learning with Imbalanced Domains: Theory and Applications, 2017

A Web-Based Service for Disturbing Image Detection.

[BibT_eX]

[DOI]

Proceedings of the MultiMedia Modeling - 23rd International Conference, 2017

Near-Duplicate Video Retrieval by Aggregating Intermediate CNN Layers.

[BibT_eX]

[DOI]

Proceedings of the MultiMedia Modeling - 23rd International Conference, 2017

The InVID Plug-in: Web Video Verification on the Browser.

[BibT_eX]

[DOI]

Denis Teyssou

Jean-Michel Leung

Spiros Georgakopoulos Kolaitis

Konstantinos Apostolidis

Proceedings of the First International Workshop on Multimedia Verification, MuVer@MM 2017, 2017

MuVer'17: First International Workshop on Multimedia Verification.

[BibT_eX]

[DOI]

Proceedings of the 2017 ACM on Multimedia Conference, 2017

Web Video Verification using Contextual Cues.

[BibT_eX]

[DOI]

Proceedings of the 2nd International Workshop on Multimedia Forensics and Security, 2017

Detection of Terrorism-related Twitter Communities using Centrality Scores.

[BibT_eX]

[DOI]

Proceedings of the 2nd International Workshop on Multimedia Forensics and Security, 2017

Learning to Detect Misleading Content on Twitter.

[BibT_eX]

[DOI]

Proceedings of the 2017 ACM on International Conference on Multimedia Retrieval, 2017

The STEP Project: Societal and Political Engagement of Young People in Environmental Issues.

[BibT_eX]

[DOI]

Maria Vogiatzi

Christodoulos Keratidis

Proceedings of the Internet Science - 4th International Conference, 2017

Open-Source Monitoring, Search and Analytics Over Social Media.

[BibT_eX]

[DOI]

Proceedings of the Internet Science - 4th International Conference, 2017

Large-Scale Open Corporate Data Collection and Analysis as an Enabler of Corporate Social Responsibility Research.

[BibT_eX]

[DOI]

Proceedings of the Internet Science - 4th International Conference, 2017

TOTEMSS: Topic-based, Temporal Sentiment Summarisation for Twitter.

[BibT_eX]

[DOI]

Bo Wang

Maria Liakata

Adam Tsakalidis

Proceedings of the IJCNLP 2017, Tapei, Taiwan, November 27, 2017

Near-Duplicate Video Retrieval with Deep Metric Learning.

[BibT_eX]

[DOI]

Proceedings of the 2017 IEEE International Conference on Computer Vision Workshops, 2017

A Monitoring Tool for Terrorism-Related Key-Players and Key-Communities in Social Media Networks.

[BibT_eX]

[DOI]

Proceedings of the European Intelligence and Security Informatics Conference, 2017

2016

Overview of the Special Issue on Trust and Veracity of Information in Social Media.

[BibT_eX]

[DOI]

ACM Trans. Inf. Syst., 2016

MGraph: multimodal event summarization in social media using topic models and graph-based ranking.

[BibT_eX]

[DOI]

Int. J. Multim. Inf. Retr., 2016

Predicting News Popularity by Mining Online Discussions.

[BibT_eX]

[DOI]

Georgios Rizos

Proceedings of the 25th International Conference on World Wide Web, 2016

In-depth Exploration of Geotagging Performance using Sampling Strategies on YFCC100M.

[BibT_eX]

[DOI]

Proceedings of the 2016 ACM Workshop on Multimedia COMMONS, 2016

Multimedia Privacy.

[BibT_eX]

[DOI]

Proceedings of the 2016 ACM Conference on Multimedia Conference, 2016

Personalized Privacy-aware Image Classification.

[BibT_eX]

[DOI]

Proceedings of the 2016 ACM on International Conference on Multimedia Retrieval, 2016

Multimodal Event Detection and Summarization in Large Scale Image Collections.

[BibT_eX]

[DOI]

Proceedings of the 2016 ACM on International Conference on Multimedia Retrieval, 2016

Placing Images with Refined Language Models and Similarity Search with PCA-reduced VGG Features.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2016 Workshop, 2016

The VMU Participation @ Verifying Multimedia Use 2016.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2016 Workshop, 2016

Verifying Multimedia Use at MediaEval 2016.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2016 Workshop, 2016

Perceived Versus Actual Predictability of Personal Information in Social Networks.

[BibT_eX]

[DOI]

Konstantina Papachristopoulou

Proceedings of the Internet Science - Third International Conference, 2016

Towards Air Quality Estimation Using Collected Multimodal Environmental Data.

[BibT_eX]

[DOI]

Konstantinos Kourtidis

George Hloupis

Ilias Stavrakas

Christodoulos Keratidis

Proceedings of the Collective Online Platforms for Financial and Environmental Awareness, 2016

WikiRate.org - Leveraging Collective Awareness to Understand Companies' Environmental, Social and Governance Performance.

[BibT_eX]

[DOI]

Srivigneshwar R. Prasad

Ethan McCutchen

Vishal Kapadia

Philipp Hirche

Proceedings of the Internet Science - Third International Conference, 2016

Web and Social Media Image Forensics for News Professionals.

[BibT_eX]

[DOI]

Proceedings of the Social Media in the Newsroom, 2016

A Physical Metaphor to Study Semantic Drift.

[BibT_eX]

[DOI]

Sándor Darányi

Peter Wittek

Konstantinos Konstantinidis

Efstratios Kontopoulos

Proceedings of the Joint Proceedings of the Posters and Demos Track of the 12th International Conference on Semantic Systems, 2016

Message from the HCSC Organizing Committee.

[BibT_eX]

[DOI]

Proceedings of the 40th IEEE Annual Computer Software and Applications Conference, 2016

2015

10th European Summer School in Information Retrieval (ESSIR 2015).

[BibT_eX]

[DOI]

SIGIR Forum, 2015

Learning to detect concepts with Approximate Laplacian Eigenmaps in large-scale and online settings.

[BibT_eX]

[DOI]

Eleni Mantziou

Int. J. Multim. Inf. Retr., 2015

Social Multimedia and Storytelling [Guest editors' introduction].

[BibT_eX]

[DOI]

IEEE Multim., 2015

Predicting Elections for Multiple Countries Using Twitter and Polls.

[BibT_eX]

[DOI]

IEEE Intell. Syst., 2015

Assessing the Reliability of Facebook User Profiling.

[BibT_eX]

[DOI]

Thomas Theodoridis

Proceedings of the 24th International Conference on World Wide Web Companion, 2015

Geotagging Social Media Content with a Refined Language Modelling Approach.

[BibT_eX]

[DOI]

Proceedings of the Intelligence and Security Informatics - Pacific Asia Workshop, 2015

Media REVEALr: A Social Multimedia Monitoring and Intelligence System for Web Multimedia Verification.

[BibT_eX]

[DOI]

Proceedings of the Intelligence and Security Informatics - Pacific Asia Workshop, 2015

A Unified Model for Socially Interconnected Multimedia-Enriched Objects.

[BibT_eX]

[DOI]

Proceedings of the MultiMedia Modeling - 21st International Conference, 2015

Multimodal Graph-based Event Detection and Summarization in Social Media Streams.

[BibT_eX]

[DOI]

Proceedings of the 23rd Annual ACM Conference on Multimedia Conference, MM '15, Brisbane, Australia, October 26, 2015

Toward an Automatic Evaluation of Retrieval Performance with Large Scale Image Collections.

[BibT_eX]

[DOI]

Hervé Le Borgne

Proceedings of the 2015 Workshop on Community-Organized Multimodal Mining: Opportunities for Novel Solutions, 2015

Improving Diversity in Image Search via Supervised Relevance Scoring.

[BibT_eX]

[DOI]

Alexandru-Lucian Gînsca

Ioannis P. Vlahavas

Proceedings of the 5th ACM on International Conference on Multimedia Retrieval, 2015

Visual Event Summarization on Social Media using Topic Modelling and Graph-based Ranking Algorithms.

[BibT_eX]

[DOI]

Proceedings of the 5th ACM on International Conference on Multimedia Retrieval, 2015

USEMP: Finding Diverse Images at MediaEval 2015.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2015 Workshop, 2015

CERTH/CEA LIST at MediaEval Placing Task 2015.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2015 Workshop, 2015

The CERTH-UNITN Participation @ Verifying Multimedia Use 2015.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2015 Workshop, 2015

Verifying Multimedia Use at MediaEval 2015.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2015 Workshop, 2015

Detecting image splicing in the wild (WEB).

[BibT_eX]

[DOI]

Proceedings of the 2015 IEEE International Conference on Multimedia & Expo Workshops, 2015

News-oriented multimedia search over multiple social networks.

[BibT_eX]

[DOI]

Katerina Iliakopoulou

Proceedings of the 13th International Workshop on Content-Based Multimedia Indexing, 2015

Web image size prediction for efficient focused image crawling.

[BibT_eX]

[DOI]

Katerina Andreadou

Proceedings of the 13th International Workshop on Content-Based Multimedia Indexing, 2015

Social Circle Discovery in Ego-Networks by Mining the Latent Structure of User Connections and Profile Attributes.

[BibT_eX]

[DOI]

Timotheos Kastrinogiannis

Proceedings of the 2015 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 2015

Increasing Transparency and Privacy for Online Social Network Users - USEMP Value Model, Scoring Framework and Legal.

[BibT_eX]

[DOI]

Theodoros Michalareas

Apostolos Kousaridas

Ali Padyab

Proceedings of the Privacy Technologies and Policy - Third Annual Privacy Forum, 2015

PScore: A Framework for Enhancing Privacy Awareness in Online Social Networks.

[BibT_eX]

[DOI]

Proceedings of the 10th International Conference on Availability, Reliability and Security, 2015

2014

Collective Intelligence, Overview.

[BibT_eX]

[DOI]

Encyclopedia of Social Network Analysis and Mining, 2014

A Comprehensive Study Over VLAD and Product Quantization in Large-Scale Image Retrieval.

[BibT_eX]

[DOI]

IEEE Trans. Multim., 2014

Collaborative event annotation in tagged photo collections.

[BibT_eX]

[DOI]

Multim. Tools Appl., 2014

Social Multimedia Crawling for Mining and Search.

[BibT_eX]

[DOI]

Computer, 2014

Two-level Message Clustering for Topic Detection in Twitter.

[BibT_eX]

[DOI]

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

SNOW 2014 Data Challenge: Assessing the Performance of News Topic Detection Methods in Social Media.

[BibT_eX]

[DOI]

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), 2014

Challenges of computational verification in social multimedia.

[BibT_eX]

[DOI]

Proceedings of the 23rd International World Wide Web Conference, 2014

An Ensemble Model for Cross-Domain Polarity Classification on Twitter.

[BibT_eX]

[DOI]

Adam Tsakalidis

Proceedings of the Web Information Systems Engineering - WISE 2014, 2014

A soft frequent pattern mining approach for textual topic detection.

[BibT_eX]

[DOI]

Proceedings of the 4th International Conference on Web Intelligence, 2014

ReSEED: social event dEtection dataset.

[BibT_eX]

[DOI]

Proceedings of the Multimedia Systems Conference 2014, 2014

Graph-Based Multimodal Clustering for Social Event Detection in Large Collections of Images.

[BibT_eX]

[DOI]

Proceedings of the MultiMedia Modeling - 20th Anniversary International Conference, 2014

StreamGrid: Summarization of Large Scale Events using Topic Modelling and Temporal Analysis.

[BibT_eX]

[DOI]

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

SocialSensor: Finding Diverse Images at MediaEval 2014.

[BibT_eX]

[DOI]

Ioannis P. Vlahavas

Proceedings of the Working Notes Proceedings of the MediaEval 2014 Workshop, 2014

CERTH @ MediaEval 2014 Social Event Detection Task.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2014 Workshop, 2014

USEMP at MediaEval Placing Task 2014.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2014 Workshop, 2014

Social Event Detection at MediaEval 2014: Challenges, Datasets, and Evaluation.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2014 Workshop, 2014

SocialSensor at MediaEval Placing Task 2014.

[BibT_eX]

[DOI]

Giorgos Orfanidis

Proceedings of the Working Notes Proceedings of the MediaEval 2014 Workshop, 2014

Social Data and Multimedia Analytics for News and Events Applications.

[BibT_eX]

[DOI]

Proceedings of the Workshops of the EDBT/ICDT 2014 Joint Conference (EDBT/ICDT 2014), 2014

Benchmarking Graph Databases on the Problem of Community Detection.

[BibT_eX]

[DOI]

Sotirios Beis

Proceedings of the New Trends in Database and Information Systems II, 2014

2013

Sensing Trending Topics in Twitter.

[BibT_eX]

[DOI]

IEEE Trans. Multim., 2013

Large-scale semi-supervised learning by Approximate Laplacian Eigenmaps, VLAD and pyramids.

[BibT_eX]

[DOI]

Eleni Mantziou

Konstantinos Konstantinidis

Proceedings of the 14th International Workshop on Image Analysis for Multimedia Interactive Services, 2013

EventSense: capturing the pulse of large-scale events by mining social media streams.

[BibT_eX]

[DOI]

Proceedings of the 17th Panhellenic Conference on Informatics, 2013

Community structure and evolution analysis of OSN interactions around real-world social phenomena.

[BibT_eX]

[DOI]

Proceedings of the 17th Panhellenic Conference on Informatics, 2013

The 2012 social event detection dataset.

[BibT_eX]

[DOI]

Proceedings of the Multimedia Systems Conference 2013, 2013

Semi-supervised Concept Detection by Learning the Structure of Similarity Graphs.

[BibT_eX]

[DOI]

Proceedings of the Advances in Multimedia Modeling, 19th International Conference, 2013

Scalable training with approximate incremental laplacian eigenmaps and PCA.

[BibT_eX]

[DOI]

Eleni Mantziou

Proceedings of the ACM Multimedia Conference, 2013

CERTH @ MediaEval 2013 Social Event Detection Task.

[BibT_eX]

[DOI]

Proceedings of the MediaEval 2013 Multimedia Benchmark Workshop, 2013

Social Event Detection at MediaEval 2013: Challenges, Datasets, and Evaluation.

[BibT_eX]

[DOI]

Christopher M. De Vries

Shlomo Geva

Proceedings of the MediaEval 2013 Multimedia Benchmark Workshop, 2013

CERTH at MediaEval Placing Task 2013.

[BibT_eX]

[DOI]

Proceedings of the MediaEval 2013 Multimedia Benchmark Workshop, 2013

SocialSensor: Finding Diverse Images at MediaEval 2013.

[BibT_eX]

[DOI]

David P. A. Corney

Carlos J. Martín

Ayse Göker

Proceedings of the MediaEval 2013 Multimedia Benchmark Workshop, 2013

Reality mining in urban space.

[BibT_eX]

[DOI]

Spiros Nikolopoulos

Proceedings of the 4th International Conference on Information, 2013

Compact and Distinctive Visual Vocabularies for Efficient Multimedia Data Indexing.

[BibT_eX]

[DOI]

Dimitrios Kastrinakis

Proceedings of the Advances in Databases and Information Systems, 2013

2012

Μέθοδοι εξόρυξης γνώσης σε συλλογές περιεχομένου μεγάλης κλίμακας από κοινωνικά δίκτυα

[BibT_eX]

[DOI]

PhD thesis, 2012

Community detection in Social Media - Performance and application considerations.

[BibT_eX]

[DOI]

Ploutarchos Spyridonos

Data Min. Knowl. Discov., 2012

"Making sense of it all": an attempt to aid journalists in analysing and filtering user generated content.

[BibT_eX]

[DOI]

Proceedings of the 21st World Wide Web Conference, 2012

SocialSensor: sensing user generated input for improved media discovery and experience.

[BibT_eX]

[DOI]

Proceedings of the 21st World Wide Web Conference, 2012

An empirical study on the combination of surf features with VLAD vectors for image search.

[BibT_eX]

[DOI]

Proceedings of the 13th International Workshop on Image Analysis for Multimedia Interactive Services, 2012

Social event detection using multimodal clustering and integrating supervisory signals.

[BibT_eX]

[DOI]

Proceedings of the International Conference on Multimedia Retrieval, 2012

Cluster-based photo browsing and tagging on the go.

[BibT_eX]

[DOI]

Proceedings of the International Conference on Multimedia Retrieval, 2012

CERTH @ MediaEval 2012 Social Event Detection Task.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2012 Workshop, 2012

Social Event Detection at MediaEval 2012: Challenges, Dataset and Evaluation.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2012 Workshop, 2012

CERTH's Participation at the Photo Annotation Task of ImageCLEF 2012.

[BibT_eX]

[DOI]

Proceedings of the CLEF 2012 Evaluation Labs and Workshop, 2012

2011

Leveraging Massive User Contributions for Knowledge Extraction.

[BibT_eX]

[DOI]

Proceedings of the Next Generation Data Technologies for Collective Computational Intelligence, 2011

Massive Graph Management for the Web and Web 2.0.

[BibT_eX]

[DOI]

Maria Giatsoglou

Proceedings of the New Directions in Web Data Management 1, 2011

Emerging, Collective Intelligence for Personal, Organisational and Social Use.

[BibT_eX]

[DOI]

Andreas C. Sonnenbichler

Proceedings of the Next Generation Data Technologies for Collective Computational Intelligence, 2011

Cluster-Based Landmark and Event Detection for Tagged Photo Collections.

[BibT_eX]

[DOI]

IEEE Multim., 2011

City exploration by use of spatio-temporal analysis and clustering of user contributed photos.

[BibT_eX]

[DOI]

Proceedings of the 1st International Conference on Multimedia Retrieval, 2011

CERTH @ MediaEval 2011 Social Event Detection Task.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2011 Workshop, 2011

Social Event Detection at MediaEval 2011: Challenges, dataset and evaluation.

[BibT_eX]

[DOI]

Proceedings of the Working Notes Proceedings of the MediaEval 2011 Workshop, 2011

Extracting Emergent Semantics from Large-Scale User-Generated Content.

[BibT_eX]

[DOI]

Proceedings of the ICT Innovations 2011, Skopje, Macedonia, 14-16 September, 2011, 2011

Detecting the long-tail of Points of Interest in tagged photo collections.

[BibT_eX]

[DOI]

Proceedings of the 9th International Workshop on Content-Based Multimedia Indexing, 2011

Semi-supervised object recognition using flickr images.

[BibT_eX]

[DOI]

Proceedings of the 9th International Workshop on Content-Based Multimedia Indexing, 2011

A comparative study of spatial, temporal and content-based patterns emerging in YouTube and Flickr.

[BibT_eX]

[DOI]

Vladimir S. Crnojevic

Proceedings of the International Conference on Computational Aspects of Social Networks, 2011

Community Detection in Collaborative Tagging Systems.

[BibT_eX]

[DOI]

Proceedings of the Community-Built Databases - Research and Development., 2011

2010

The Dynamics of Content Popularity in Social Media.

[BibT_eX]

[DOI]

Int. J. Data Warehous. Min., 2010

ClustTour: city exploration by use of hybrid photo clustering.

[BibT_eX]

[DOI]

Proceedings of the 18th International Conference on Multimedia 2010, 2010

Using event representation and semantic enrichment for managing and reviewing emergency incident logs.

[BibT_eX]

[DOI]

Ansgar Scherp

Neil Ireson

Ioannis Tsampoulatidis

Proceedings of the 2nd ACM international workshop on Events in multimedia, 2010

Image clustering through community detection on hybrid image similarity graphs.

[BibT_eX]

[DOI]

Proceedings of the International Conference on Image Processing, 2010

A Graph-Based Clustering Scheme for Identifying Related Tags in Folksonomies.

[BibT_eX]

[DOI]