Despoina Chatzakou

47 papers A* 1A 1B 2C 2Journal 19Unranked 21
YearRankTypeTitle / Venue / Authors
2025 J jnl
AI-Based Holistic Framework for Cyber Threat Intelligence Management.
IEEE Access
Arnolnt Spyros, Ilias Koritsas, Angelos Papoutsis, Panos Panagiotou, Despoina Chatzakou, Dimitrios Kavallieros, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2024 — conf
Bias Detection and Mitigation in Textual Data: A Study on Fake News and Hate Speech Detection.
ECIR (3)
Apostolos Kasampalis, Despoina Chatzakou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2024 J jnl
From Research to Applications: What Can We Extract with Social Media Sensing?
SN Comput. Sci.
Aristeidis Bozas, Stelios Andreadis, Despoina Chatzakou, Spyridon Symeonidis, Ourania Theodosiadou, Pantelis Kyriakidis, Alexandros Kokkalas, Evangelos A. Stathopoulos, Sotiris Diplaris, Theodora Tsikrika, Ilias Gialampoukidis, Stefanos Vrochidis, Ioannis Kompatsiaris
2024 — conf
Innovative Digital Forensic and Investigation Tools for Law Enforcement: The EMPOWER & TRACY Approach.
AIAI (Workshops)
Nikos Avgerinos, Panagiotis Mertis, Manolis Tsagaris, Nikos Desipris, George L. Lyberopoulos, Elina Theodoropoulou, Konstantinos Filis, Jelena Sarajlic, Manuel Pastor, Despoina Chatzakou, George Kalpakis, Christos Chatzikonstantinou, Dorothea Tsatsou, Stefanos Demertzis, Peter Leskovský, Carlos Mendes, Shona Linehan, John Mulcahy, Ioannis Karvelas, Manuel Álvarez Fernández, André Alegria
2023 — conf
Domain-Aligned Data Augmentation for Low-Resource and Imbalanced Text Classification.
ECIR (2)
Nikolaos Stylianou, Despoina Chatzakou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2023 — conf
Trend Detection in Crime-Related Time Series with Change Point Detection Methods.
CLEF
Apostolos Konstantinou, Despoina Chatzakou, Ourania Theodosiadou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2023 J jnl
User Identity Linkage in Social Media Using Linguistic and Social Interaction Features.
CoRR
Despoina Chatzakou, Juan Soler Company, Theodora Tsikrika, Leo Wanner, Stefanos Vrochidis, Ioannis Kompatsiaris
2022 — conf
Leveraging Transformer Self Attention Encoder for Crisis Event Detection in Short Texts.
ECIR (2)
Pantelis Kyriakidis, Despoina Chatzakou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2022 C conf
Selective Word Substitution for Contextualized Data Augmentation.
NLDB
Kyriaki Pantelidou, Despoina Chatzakou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2021 A* conf
Catching them red-handed: Real-time Aggression Detection on Social Media.
ICDE
Herodotos Herodotou, Despoina Chatzakou, Nicolas Kourtellis
2021 J jnl
Change Point Detection in Terrorism-Related Online Content Using Deep Learning Derived Indicators.
Inf.
Ourania Theodosiadou, Kyriaki Pantelidou, Nikolaos Bastas, Despoina Chatzakou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2021 J jnl
Modeling aggression propagation on social media.
Online Soc. Networks Media
Chrysoula Terizi, Despoina Chatzakou, Evaggelia Pitoura, Panayiotis Tsaparas, Nicolas Kourtellis
2021 — conf
Random-Walk Graph Embeddings and the Influence of Edge Weighting Strategies in Community Detection Tasks.
OASIS@HT
Andreas Kosmatopoulos, Kostas Loumponias, Despoina Chatzakou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2020 — conf
A Streaming Machine Learning Framework for Online Aggression Detection on Twitter.
IEEE BigData
Herodotos Herodotou, Despoina Chatzakou, Nicolas Kourtellis
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
Catching them red-handed: Real-time Aggression Detection on Social Media.
CoRR
Herodotos Herodotou, Despoina Chatzakou, Nicolas Kourtellis
2020 — conf
Invited keynote on IOT4SAFE 2020: Semantic Web Technologies in Fighting Crime and Terrorism: The CONNEXIONs Approach.
IOT4SAFE@ESWC
Alexandros Koufakis, Despoina Chatzakou, Georgios Meditskos, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2020 — conf
User Identity Linkage in Social Media Using Linguistic and Social Interaction Features.
WebSci
Despoina Chatzakou, Juan Soler Company, Theodora Tsikrika, Leo Wanner, Stefanos Vrochidis, Ioannis Kompatsiaris
2019 — conf
A Unified Deep Learning Architecture for Abuse Detection.
WebSci
Antigoni-Maria Founta, Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Athena Vakali, Ilias Leontiadis
2019 J jnl
Detecting Cyberbullying and Cyberaggression in Social Media.
CoRR
Despoina Chatzakou, Ilias Leontiadis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali, Nicolas Kourtellis
2019 J jnl
Detecting Cyberbullying and Cyberaggression in Social Media.
ACM Trans. Web
Despoina Chatzakou, Ilias Leontiadis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali, Nicolas Kourtellis
2018 J jnl
A Unified Deep Learning Architecture for Abuse Detection.
CoRR
Antigoni-Maria Founta, Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Athena Vakali, Ilias Leontiadis
2018 A conf
Large Scale Crowdsourcing and Characterization of Twitter Abusive Behavior.
ICWSM
Antigoni-Maria Founta, Constantinos Djouvas, Despoina Chatzakou, Ilias Leontiadis, Jeremy Blackburn, Gianluca Stringhini, Athena Vakali, Michael Sirivianos, Nicolas Kourtellis
2018 J jnl
Large Scale Crowdsourcing and Characterization of Twitter Abusive Behavior.
CoRR
Antigoni-Maria Founta, Constantinos Djouvas, Despoina Chatzakou, Ilias Leontiadis, Jeremy Blackburn, Gianluca Stringhini, Athena Vakali, Michael Sirivianos, Nicolas Kourtellis
2017 — conf
Detecting Aggressors and Bullies on Twitter.
WWW (Companion Volume)
Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
2017 J jnl
Detecting variation of emotions in online activities.
Expert Syst. Appl.
Despoina Chatzakou, Athena Vakali, Konstantinos Kafetsios
2017 J jnl
DynamiCITY: Revealing city dynamics from citizens social media broadcasts.
Inf. Syst.
Vasiliki Gkatziaki, Maria Giatsoglou, Despoina Chatzakou, Athena Vakali
2017 J jnl
Experience of emotion in face to face and computer-mediated social interactions: An event sampling study.
Comput. Hum. Behav.
Konstantinos Kafetsios, Despoina Chatzakou, Nikolaos Tsigilis, Athena Vakali
2017 — conf
Hate is not Binary: Studying Abusive Behavior of #GamerGate on Twitter.
HT
Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
2017 J jnl
Hate is not Binary: Studying Abusive Behavior of #GamerGate on Twitter.
CoRR
Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
2017 — conf
Mean Birds: Detecting Aggression and Bullying on Twitter.
WebSci
Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
2017 J jnl
Mean Birds: Detecting Aggression and Bullying on Twitter.
CoRR
Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
2017 — conf
Measuring #GamerGate: A Tale of Hate, Sexism, and Bullying.
WWW (Companion Volume)
Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
2017 J jnl
Measuring #GamerGate: A Tale of Hate, Sexism, and Bullying.
CoRR
Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
2017 — —
User behavior analysis on social web with knowledge discovery techniques
Despoina Chatzakou
2015 J jnl
Harvesting Opinions and Emotions from Social Media Textual Resources.
IEEE Internet Comput.
Despoina Chatzakou, Athena Vakali
2015 B conf
MultiSpot: Spotting Sentiments with Semantic Aware Multilevel Cascaded Analysis.
DaWaK
Despoina Chatzakou, Nikolaos Passalis, Athena Vakali
2015 — conf
ND-Sync: Detecting Synchronized Fraud Activities.
PAKDD (2)
Maria Giatsoglou, Despoina Chatzakou, Neil Shah, Alex Beutel, Christos Faloutsos, Athena Vakali
2015 — conf
Retweeting Activity on Twitter: Signs of Deception.
PAKDD (1)
Maria Giatsoglou, Despoina Chatzakou, Neil Shah, Christos Faloutsos, Athena Vakali
2015 J jnl
User communities evolution in microblogs: A public awareness barometer for real world events.
World Wide Web
Maria Giatsoglou, Despoina Chatzakou, Athena Vakali
2014 — conf
A Conceptual Enterprise Architecture Framework for Smart Cities - A Survey Based Approach.
ICE-B
George Kakarontzas, Leonidas G. Anthopoulos, Despoina Chatzakou, Athena Vakali
2014 — conf
EmoTube: A Sentiment Analysis Integrated Environment for Social Web Content.
WIMS
Evangelia Polymerou, Despoina Chatzakou, Athena Vakali
2013 — conf
Community Detection in Social Media by Leveraging Interactions and Intensities.
WISE (2)
Maria Giatsoglou, Despoina Chatzakou, Athena Vakali
2013 B conf
Micro-blogging Content Analysis via Emotionally-Driven Clustering.
ACII
Despoina Chatzakou, Vassiliki A. Koutsonikola, Athena Vakali, Konstantinos Kafetsios
2013 — conf
Requirements and architecture design principles for a smart city experiment with sensor and social networks integration.
Panhellenic Conference on Informatics
Christos Samaras, Athena Vakali, Maria Giatsoglou, Despoina Chatzakou, Lefteris Angelis
2013 C conf
Social Data Sentiment Analysis in Smart Environments - Extending Dual Polarities for Crowd Pulse Capturing.
DATA
Athena Vakali, Despoina Chatzakou, Vassiliki A. Koutsonikola, George Andreadis
2011 — conf
Towards a User-Aware Virtual Museum.
VS-GAMES
Christos Zigkolis, Vassiliki A. Koutsonikola, Despoina Chatzakou, Savvas Karagiannidis, Maria Giatsoglou, Andreas Kosmatopoulos, Athena Vakali