Athena Vakali

RESEARCH, TEACHING, or OTHER INTERESTS

Artificial Intelligence, Computer Science, Information Systems, Computer Science Applications

RECENT SCHOLAR PUBLICATIONS

AgoraSpeech: A multi-annotated comprehensive dataset of political discourse through the lens of humans and AI
P Sermpezis, S Karamanidis, E Paraschou, I Dimitriadis, S Yfantidou, ...
arXiv preprint arXiv:2501.06265 2025



Towards Hybrid Intelligence in Journalism: Findings and Lessons Learnt from a Collaborative Analysis of Greek Political Rhetoric by ChatGPT and Humans
T Troboukis, K Kiki, A Galanopoulos, P Sermpezis, S Karamanidis, ...
arXiv preprint arXiv:2410.13400 2024



Negotiation strategies in ubiquitous human-computer interaction: a novel storyboards scale & field study
S Yfantidou, G Yfantidou, P Balaska, A Vakali
Multimedia Tools and Applications, 1-35 2024



Analyzing Large-Scale Political Discussions on Twitter: The Use Case of the Greek Wiretapping Scandal (# ypoklopes)
I Dimitriadis, DP Giakatos, S Karamanidis, P Sermpezis, K Kiki, A Vakali
Journalism and Media 5 (3), 1348-1363 2024



Assessing Bias in Self-supervised and Supervised Models for Temporal Data
M Liatsikou, S Yfantidou, A Vakali
Proceedings of the 13th Hellenic Conference on Artificial Intelligence, 1-7 2024



Using Self-supervised Learning Can Improve Model Fairness
S Yfantidou, D Spathis, M Constantinides, A Vakali, D Quercia, F Kawsar
Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and 2024



Rolling in the deep of cognitive and AI biases
A Vakali, N Tantalaki
arXiv preprint arXiv:2407.21202 2024



Dynamics between Bitcoin market trends and social media activity
G Vlahavas, A Vakali
FinTech 3 (3), 349-378 2024



Every vote you make: Attachment and state culture predict bipartisanship in US Congress
D Gruda, P Hanges, E Mikneviciute, D Karanatsiou, A Vakali
Personality and Individual Differences 222, 112576 2024



Unsupervised clustering of bitcoin transactions
G Vlahavas, K Karasavvas, A Vakali
Financial Innovation 10 (1), 25 2024



Evaluating Fairness in Self-supervised and Supervised Models for Sequential Data
S Yfantidou, D Spathis, M Constantinides, A Vakali, D Quercia, F Kawsar
arXiv preprint arXiv:2401.01640 2024



Caleb: a conditional adversarial learning framework to enhance bot detection
I Dimitriadis, G Dialektakis, A Vakali
Data & Knowledge Engineering 149, 102245 2024



Stress Beats: a continuum of learning methods for personalized stress detection
V Parousidou, S Yfantidou, C Karagianni, A Vakali
2023 IEEE/WIC International Conference on Web Intelligence and Intelligent 2023



Enable care of older cancer survivors with digital health technologies: the LifeChamps project
A Billis, P Lagakis, G Petridis, I Dimitriadis, A Gounaris, A Vakali, ...
2023 IEEE 19th International Conference on Body Sensor Networks (BSN), 1-4 2023



MINDSET: A benchMarking suIte exploring seNsing Data for SElf sTates inference
C Karagianni, E Paraschou, S Yfantidou, A Vakali
2023 IEEE 10th International Conference on Data Science and Advanced 2023



Uncovering bias in personal informatics
S Yfantidou, P Sermpezis, A Vakali, R Baeza-Yates
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous 2023



The state of algorithmic fairness in mobile human-computer interaction
S Yfantidou, M Constantinides, D Spathis, A Vakali, D Quercia, F Kawsar
Proceedings of the 25th International Conference on Mobile Human-Computer 2023



14 years of self-tracking technology for mHealth—Literature review: Lessons learned and the PAST SELF framework
S Yfantidou, P Sermpezis, A Vakali
ACM Transactions on Computing for Healthcare 4 (3), 1-43 2023



ENCOVIZ: An open-source, secure and multi-role energy consumption visualisation platform
E Voulgaris, I Dimitriadis, DP Giakatos, A Vakali, A Papakonstantinou, ...
2023 14th International Conference on Information, Intelligence, Systems 2023



Heartdis: a generalizable end-to-end energy disaggregation pipeline
I Dimitriadis, N Virtsionis Gkalinikis, N Gkiouzelis, A Vakali, ...
Energies 16 (13), 5115 2023

MOST CITED SCHOLAR PUBLICATIONS

Cloud computing: Distributed internet computing for IT and scientific research
MD Dikaiakos, D Katsaros, P Mehra, G Pallis, A Vakali
IEEE Internet computing 13 (5), 10-13 2009
Citations: 1287



Community detection in social media: Performance and application considerations
S Papadopoulos, Y Kompatsiaris, A Vakali, P Spyridonos
Data mining and knowledge discovery 24, 515-554 2012
Citations: 853



Large scale crowdsourcing and characterization of twitter abusive behavior
A Founta, C Djouvas, D Chatzakou, I Leontiadis, J Blackburn, G Stringhini, ...
Proceedings of the international AAAI conference on web and social media 12 (1) 2018
Citations: 805



Insight and perspectives for content delivery networks
G Pallis, A Vakali
Communications of the ACM 49 (1), 101-106 2006
Citations: 657



Content delivery networks: Status and trends
A Vakali, G Pallis
IEEE Internet Computing 7 (6), 68-74 2003
Citations: 630



Mean birds: Detecting aggression and bullying on twitter
D Chatzakou, N Kourtellis, J Blackburn, E De Cristofaro, G Stringhini, ...
Proceedings of the 2017 ACM on web science conference, 13-22 2017
Citations: 541



Sentiment analysis leveraging emotions and word embeddings
M Giatsoglou, MG Vozalis, K Diamantaras, A Vakali, G Sarigiannidis, ...
Expert Systems with Applications 69, 214-224 2017
Citations: 491



Content delivery networks
R Buyya, M Pathan, A Vakali
Springer Science & Business Media 2008
Citations: 366



Urban planning and smart cities: Interrelations and reciprocities
LG Anthopoulos, A Vakali
The Future Internet: Future Internet Assembly 2012: From Promises to Reality 2012
Citations: 324



A unified deep learning architecture for abuse detection
AM Founta, D Chatzakou, N Kourtellis, J Blackburn, A Vakali, I Leontiadis
Proceedings of the 10th ACM conference on web science, 105-114 2019
Citations: 305



Behind the cues: A benchmarking study for fake news detection
G Gravanis, A Vakali, K Diamantaras, P Karadais
Expert Systems with Applications 128, 201-213 2019
Citations: 253



Intrusion detection in RBAC-administered databases
E Bertino, E Terzi, A Kamra, A Vakali
21st Annual Computer Security Applications Conference (ACSAC'05), 10 pp.-182 2005
Citations: 216



Cluster-based landmark and event detection for tagged photo collections
S Papadopoulos, C Zigkolis, Y Kompatsiaris, A Vakali
IEEE Multimedia Magazine 18 (1), 52-63 2011
Citations: 191



Detecting cyberbullying and cyberaggression in social media
D Chatzakou, I Leontiadis, J Blackburn, ED Cristofaro, G Stringhini, ...
ACM Transactions on the Web (TWEB) 13 (3), 1-51 2019
Citations: 151



A systematic review for smart city data analytics
V Moustaka, A Vakali, LG Anthopoulos
ACM Computing Surveys (cSuR) 51 (5), 1-41 2018
Citations: 150



A clustering-based prefetching scheme on a Web cache environment
G Pallis, A Vakali, J Pokorny
Computers & Electrical Engineering 34 (4), 309-323 2008
Citations: 138



Measuring# gamergate: A tale of hate, sexism, and bullying
D Chatzakou, N Kourtellis, J Blackburn, E De Cristofaro, G Stringhini, ...
Proceedings of the 26th international conference on world wide web companion 2017
Citations: 130



Content delivery networks: State of the art, insights, and imperatives
M Pathan, R Buyya, A Vakali
Content Delivery Networks, 3-32 2008
Citations: 127



LDAP: framework, practices, and trends
V Koutsonikola, A Vakali
IEEE Internet Computing 8 (5), 66-72 2004
Citations: 125



PDetect: A clustering approach for detecting plagiarism in source code datasets
L Moussiades, A Vakali
The computer journal 48 (6), 651-661 2005
Citations: 112