Michalis Vazirgiannis

Lost in the Mix: Evaluating LLM Understanding of Code-Switched Text ACL 2026 Beyond Random Sampling: Efficient Language Model Pretraining via Curriculum Learning EACL 2026 LLM as a Broken Telephone: Iterative Generation Distorts Information ACL 2025 Signed Graph Autoencoder for Explainable and Polarization-Aware Network Embeddings AISTATS 2025 Prediction via Shapley Value Regression ICML 2025 Graph Neural Network Generalization With Gaussian Mixture Model Based Augmentation ICML 2025 Nile-Chat: Egyptian Language Models for Arabic and Latin Scripts EMNLP 2025 Atlas-Chat: Adapting Large Language Models for Low-Resource Moroccan Arabic Dialect COLING 2025 Bias in the Mirror : Are LLMs opinions robust to their own adversarial attacks ACL 2025 GreekBART: The First Pretrained Greek Sequence-to-Sequence Model COLING 2024 The Curious Decline of Linguistic Diversity: Training Language Models on Synthetic Text NAACL 2024 If You Want to Be Robust, Be Wary of Initialization NIPS 2024 Prot2Text: Multimodal Protein’s Function Generation with GNNs and Transformers AAAI 2024 A Simple and Yet Fairly Effective Defense for Graph Neural Networks AAAI 2024 Bounding the Expected Robustness of Graph Neural Networks Subject to Node Feature Attacks ICLR 2024 Automatic Analysis of Substantiation in Scientific Peer Reviews EMNLP 2023 Graph Ordering Attention Networks AAAI 2023 Weisfeiler and Leman go Hyperbolic: Learning Distance Preserving Node Representations AISTATS 2023 Graph Alignment Kernels using Weisfeiler and Leman Hierarchies AISTATS 2023 Geometric Random Walk Graph Neural Networks via Implicit Layers AISTATS 2023 DATScore: Evaluating Translation with Data Augmented Translations EACL 2023 FREDSum: A Dialogue Summarization Corpus for French Political Debates EMNLP 2023 Path Neural Networks: Expressive and Accurate Graph Neural Networks ICML 2023 FrugalScore: Learning Cheaper, Lighter and Faster Evaluation Metrics for Automatic Text Generation ACL 2022 Questioning the Validity of Summarization Datasets and Improving Their Factual Consistency EMNLP 2022 AraBART: a Pretrained Arabic Sequence-to-Sequence Model for Abstractive Summarization EMNLP 2022 DGraph: A Large-Scale Financial Dataset for Graph Anomaly Detection NIPS 2022 Node Feature Kernels Increase Graph Convolutional Network Robustness AISTATS 2022 Transfer Graph Neural Networks for Pandemic Forecasting AAAI 2021 BARThez: a Skilled Pretrained French Sequence-to-Sequence Model EMNLP 2021 JuriBERT: A Masked-Language Model Adaptation for French Legal Text EMNLP 2021 BERTweetFR : Domain Adaptation of Pre-Trained Language Models for French Tweets EMNLP 2021 Learning Parametrised Graph Shift Operators ICLR 2021 Unsupervised Word Polysemy Quantification with Multiresolution Grids of Contextual Embeddings EACL 2021 An Ensemble Method for Producing Word Representations focusing on the Greek Language AACL 2020 Energy-based Self-attentive Learning of Abstractive Communities for Spoken Language Understanding AACL 2020 GraKeL: A Graph Kernel Library in Python JMLR 2020 Message Passing Attention Networks for Document Understanding AAAI 2020 Random Walk Graph Neural Networks NIPS 2020 Speaker-change Aware CRF for Dialogue Act Classification COLING 2020 Rep the Set: Neural Networks for Learning Set Representations AISTATS 2020 A Degeneracy Framework for Scalable Graph Autoencoders IJCAI 2019 Proceedings of the Thirteenth Workshop on Graph-Based Methods for Natural Language Processing (TextGraphs-13) EMNLP 2019 Scalable graph-based method for individual named entity identification EMNLP 2019 Unsupervised Abstractive Meeting Summarization with Multi-Sentence Compression and Budgeted Submodular Maximization ACL 2018 Orthogonal Matching Pursuit for Text Classification EMNLP 2018 A Degeneracy Framework for Graph Similarity IJCAI 2018 Fusing Document, Collection and Label Graph-based Representations with Word Embeddings for Text Classification NAACL 2018 Graph-based Text Representations: Boosting Text Mining, NLP and Information Retrieval with Graphs EMNLP 2017 Multivariate Gaussian Document Representation from Word Embeddings for Text Categorization EACL 2017 Real-Time Keyword Extraction from Conversations EACL 2017 Shortest-Path Graph Kernels for Document Similarity EMNLP 2017 GoWvis: A Web Application for Graph-of-Words-based Text Visualization and Summarization ACL 2016 Regularizing Text Categorization with Clusters of Words EMNLP 2016 A Graph Degeneracy-based Approach to Keyword Extraction EMNLP 2016 Convolutional Sentence Kernel from Word Embeddings for Short Text Categorization EMNLP 2015 Text Categorization as a Graph Classification Problem IJCNLP 2015 Text Categorization as a Graph Classification Problem ACL 2015