Christos Xypolopoulos

According to our database, Christos Xypolopoulos authored at least 14 papers between 2018 and 2026.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2026

GreekMMLU: A Native-Sourced Multitask Benchmark for Evaluating Language Models in Greek.

Yang Zhang, Mersin Konomi, Christos Xypolopoulos, Konstantinos Divriotis, Konstantinos Skianis, Giannis Nikolentzos, Giorgos Stamou, Guokan Shang, Michalis Vazirgiannis

CoRR, February, 2026

2025

Bias in the Mirror : Are LLMs opinions robust to their own adversarial attacks.

Virgile Rennard, Christos Xypolopoulos, Michalis Vazirgiannis

Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), 2025

2024

Graph Linearization Methods for Reasoning on Graphs with Large Language Models.

Christos Xypolopoulos, Guokan Shang, Xiao Fei, Giannis Nikolentzos, Hadi Abdine, Iakovos Evdaimon, Michail Chatzianastasis, Giorgos Stamou, Michalis Vazirgiannis

CoRR, 2024

GreekBART: The First Pretrained Greek Sequence-to-Sequence Model.

Iakovos Evdaimon, Hadi Abdine, Christos Xypolopoulos, Stamatis Outsios, Michalis Vazirgiannis, Giorgos Stamou

Proceedings of the 2024 Joint International Conference on Computational Linguistics, 2024

2023

Synthetic electronic health records generated with variational graph autoencoders.

Giannis Nikolentzos, Michalis Vazirgiannis, Christos Xypolopoulos, Markus Lingman, Erik G. Brandt

npj Digit. Medicine, 2023

2021

NLP Research and Resources at DaSciM, Ecole Polytechnique.

Hadi Abdine, Yanzhu Guo, Moussa Kamal Eddine, Giannis Nikolentzos, Stamatis Outsios, Guokan Shang, Christos Xypolopoulos, Michalis Vazirgiannis

CoRR, 2021

Evaluation Of Word Embeddings From Large-Scale French Web Content.

Hadi Abdine, Christos Xypolopoulos, Moussa Kamal Eddine, Michalis Vazirgiannis

CoRR, 2021

How COVID-19 Is Changing Our Language : Detecting Semantic Shift in Twitter Word Embeddings.

Yanzhu Guo, Christos Xypolopoulos, Michalis Vazirgiannis

CoRR, 2021

Unsupervised Word Polysemy Quantification with Multiresolution Grids of Contextual Embeddings.

Christos Xypolopoulos, Antoine J.-P. Tixier, Michalis Vazirgiannis

Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume, 2021

BERTweetFR : Domain Adaptation of Pre-Trained Language Models for French Tweets.

Yanzhu Guo, Virgile Rennard, Christos Xypolopoulos, Michalis Vazirgiannis

Proceedings of the Seventh Workshop on Noisy User-generated Text, 2021

2020

Performance in the Courtroom: Automated Processing and Visualization of Appeal Court Decisions in France.

Paul Boniol, George Panagopoulos, Christos Xypolopoulos, Rajaa El Hamdani, David Restrepo Amariles, Michalis Vazirgiannis

Proceedings of the Natural Legal Language Processing Workshop 2020 co-located with the 26th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining (KDD 2020), 2020

2019

Scientometrics for Success and Influence in the Microsoft Academic Graph.

George Panagopoulos, Christos Xypolopoulos, Konstantinos Skianis, Christos Giatsidis, Jie Tang, Michalis Vazirgiannis

Proceedings of the Complex Networks and Their Applications VIII, 2019

2018

Word Embeddings from Large-Scale Greek Web Content.

Stamatis Outsios, Konstantinos Skianis, Polykarpos Meladianos, Christos Xypolopoulos, Michalis Vazirgiannis

CoRR, 2018

An Optimization Approach for Sub-event Detection and Summarization in Twitter.

Polykarpos Meladianos, Christos Xypolopoulos, Giannis Nikolentzos, Michalis Vazirgiannis

Proceedings of the Advances in Information Retrieval, 2018