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What Do GNNs Actually Learn? Towards Understanding their Representations


Apr 21, 2023
Giannis Nikolentzos, Michail Chatzianastasis, Michalis Vazirgiannis

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


Apr 03, 2023
Iakovos Evdaimon, Hadi Abdine, Christos Xypolopoulos, Stamatis Outsios, Michalis Vazirgiannis, Giorgos Stamou

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Neural Architecture Search with Multimodal Fusion Methods for Diagnosing Dementia


Feb 12, 2023
Michail Chatzianastasis, Loukas Ilias, Dimitris Askounis, Michalis Vazirgiannis

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Explainable Multilayer Graph Neural Network for Cancer Gene Prediction


Jan 20, 2023
Michail Chatzianastasis, Michalis Vazirgiannis, Zijun Zhang

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New Frontiers in Graph Autoencoders: Joint Community Detection and Link Prediction


Nov 16, 2022
Guillaume Salha-Galvan, Johannes F. Lutzeyer, George Dasoulas, Romain Hennequin, Michalis Vazirgiannis

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* This NeurIPS 2022 GLFrontiers workshop paper summarizes results from the following journal article: arXiv:2202.00961. arXiv admin note: text overlap with arXiv:2205.14651 

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Improving Graph Neural Networks at Scale: Combining Approximate PageRank and CoreRank


Nov 08, 2022
Ariel R. Ramos Vela, Johannes F. Lutzeyer, Anastasios Giovanidis, Michalis Vazirgiannis

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* Accepted at the "NeurIPS 2022 New Frontiers in Graph Learning Workshop (NeurIPS GLFrontiers 2022)" 

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Weisfeiler and Leman go Hyperbolic: Learning Distance Preserving Node Representations


Nov 04, 2022
Giannis Nikolentzos, Michail Chatzianastasis, Michalis Vazirgiannis

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Questioning the Validity of Summarization Datasets and Improving Their Factual Consistency


Oct 31, 2022
Yanzhu Guo, Chloé Clavel, Moussa Kamal Eddine, Michalis Vazirgiannis

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* Accepted to EMNLP 2022 

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DATScore: Evaluating Translation with Data Augmented Translations


Oct 12, 2022
Moussa Kamal Eddine, Guokan Shang, Michalis Vazirgiannis

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Word Sense Induction with Hierarchical Clustering and Mutual Information Maximization


Oct 11, 2022
Hadi Abdine, Moussa Kamal Eddine, Michalis Vazirgiannis, Davide Buscaldi

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