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Nicolas Kourtellis
Nicolas Kourtellis
Research Scientist, Telefonica Research
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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
6862018
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
4902017
The web of false information: Rumors, fake news, hoaxes, clickbait, and various other shenanigans
S Zannettou, M Sirivianos, J Blackburn, N Kourtellis
arXiv preprint arXiv:1804.03461, 2018
4072018
Kek, cucks, and god emperor trump: A measurement study of 4chan’s politically incorrect forum and its effects on the web
GE Hine, J Onaolapo, E De Cristofaro, N Kourtellis, I Leontiadis, ...
Eleventh International AAAI Conference on Web and Social Media, 2017
3272017
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
2532019
The web centipede: understanding how web communities influence each other through the lens of mainstream and alternative news sources
S Zannettou, T Caulfield, E De Cristofaro, N Kourtellis, I Leontiadis, ...
Proceedings of the 2017 Internet Measurement Conference, 405-417, 2017
2292017
PPFL: privacy-preserving federated learning with trusted execution environments
F Mo, H Haddadi, K Katevas, E Marin, D Perino, N Kourtellis
Proceedings of the 19th Annual International Conference on Mobile Systems …, 2021
2122021
The power of both choices: Practical load balancing for distributed stream processing engines
MAU Nasir, GDF Morales, D Garcia-Soriano, N Kourtellis, M Serafini
2015 IEEE 31st International Conference on Data Engineering, 137-148, 2015
2012015
Identifying high betweenness centrality nodes in large social networks
N Kourtellis, T Alahakoon, R Simha, A Iamnitchi, R Tripathi
Social Network Analysis and Mining 3, 899-914, 2013
1562013
Cookie synchronization: Everything you always wanted to know but were afraid to ask
P Papadopoulos, N Kourtellis, E Markatos
The World Wide Web Conference, 1432-1442, 2019
1342019
Scalable online betweenness centrality in evolving graphs
N Kourtellis, G De Francisci Morales, F Bonchi
IEEE Transactions on Knowledge and Data Engineering, 2014
1292014
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
1222019
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
1172017
Dynamic matrix factorization with priors on unknown values
R Devooght, N Kourtellis, A Mantrach
Proceedings of the 21th ACM SIGKDD international conference on knowledge …, 2015
1172015
Disturbed YouTube for kids: Characterizing and detecting inappropriate videos targeting young children
K Papadamou, A Papasavva, S Zannettou, J Blackburn, N Kourtellis, ...
Proceedings of the international AAAI conference on web and social media 14 …, 2020
1132020
When two choices are not enough: Balancing at scale in distributed stream processing
MAU Nasir, GDF Morales, N Kourtellis, M Serafini
2016 IEEE 32nd International Conference on Data Engineering (ICDE), 589-600, 2016
1092016
If you are not paying for it, you are the product: How much do advertisers pay to reach you?
P Papadopoulos, N Kourtellis, PR Rodriguez, N Laoutaris
Proceedings of the 2017 Internet Measurement Conference, 142-156, 2017
1012017
The social world of content abusers in community question answering
I Kayes, N Kourtellis, D Quercia, A Iamnitchi, F Bonchi
Proceedings of the 24th international conference on world wide web, 570-580, 2015
1012015
Hate is not binary: Studying abusive behavior of# gamergate on twitter
D Chatzakou, N Kourtellis, J Blackburn, E De Cristofaro, G Stringhini, ...
Proceedings of the 28th ACM conference on hypertext and social media, 65-74, 2017
962017
Cheating in online games: A social network perspective
J Blackburn, N Kourtellis, J Skvoretz, M Ripeanu, A Iamnitchi
ACM Transactions on Internet Technology (TOIT) 13 (3), 1-25, 2014
892014
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