Michail Chatzianastasis

33 papers A* 2A 2Misc 1Journal 23Unranked 4

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Archetypal Graph Generative Models: Explainable and Identifiable Communities via Anchor-Dominant Convex Hulls. CoRR Nikolaos Nakis, Chrysoula Kosma, Panagiotis Promponas, Michail Chatzianastasis, Giannis Nikolentzos
2025	—	`—`	Advancements in Graph Representation Learning and Applications in Computational Biology. (Avancées dans l'apprentissage de la représentation graphique et leurs applications en biologie computationnelle). Michail Chatzianastasis
2025	J	`jnl`	Cell2Text: Multimodal LLM for Generating Single-Cell Descriptions from RNA-Seq Data. CoRR Oussama Kharouiche, Aris Markogiannakis, Xiao Fei, Michail Chatzianastasis, Michalis Vazirgiannis
2025	J	`jnl`	KAGNNs: Kolmogorov-Arnold Networks meet Graph Learning. Trans. Mach. Learn. Res. Roman Bresson, Giannis Nikolentzos, George Panagopoulos, Michail Chatzianastasis, Jun Pang, Michalis Vazirgiannis
2025	J	`jnl`	Prot2Text-V2: Protein Function Prediction with Multimodal Contrastive Alignment. CoRR Xiao Fei, Michail Chatzianastasis, Sarah Almeida Carneiro, Hadi Abdine, Lawrence P. Petalidis, Michalis Vazirgiannis
2025	A	`conf`	Signed Graph Autoencoder for Explainable and Polarization-Aware Network Embeddings. AISTATS Nikolaos Nakis, Chrysoula Kosma, Giannis Nikolentzos, Michail Chatzianastasis, Iakovos Evdaimon, Michalis Vazirgiannis
2025	J	`jnl`	The Signed Two-Space Proximity Model for Learning Representations in Protein-Protein Interaction Networks. CoRR Nikolaos Nakis, Chrysoula Kosma, Anastasia Brativnyk, Michail Chatzianastasis, Iakovos Evdaimon, Michalis Vazirgiannis
2025	J	`jnl`	The signed two-space proximity model for learning representations in protein-protein interaction networks. Bioinform. Nikolaos Nakis, Chrysoula Kosma, Anastasia Brativnyk, Michail Chatzianastasis, Iakovos Evdaimon, Michalis Vazirgiannis
2024	J	`jnl`	A Graph Neural Architecture Search Approach for Identifying Bots in Social Media. CoRR Georgios Tzoumanekas, Michail Chatzianastasis, Loukas Ilias, George Kiokes, John E. Psarras, Dimitris Askounis
2024	J	`jnl`	A graph neural architecture search approach for identifying bots in social media. Frontiers Artif. Intell. Georgios Tzoumanekas, Michail Chatzianastasis, Loukas Ilias, George Kiokes, John E. Psarras, Dimitris Askounis
2024	J	`jnl`	Geometric Self-Supervised Pretraining on 3D Protein Structures using Subgraphs. CoRR Michail Chatzianastasis, George Dasoulas, Michalis Vazirgiannis
2024	J	`jnl`	Graph Linearization Methods for Reasoning on Graphs with Large Language Models. CoRR Christos Xypolopoulos, Guokan Shang, Xiao Fei, Giannis Nikolentzos, Hadi Abdine, Iakovos Evdaimon, Michail Chatzianastasis, Giorgos Stamou, Michalis Vazirgiannis
2024	J	`jnl`	KAGNNs: Kolmogorov-Arnold Networks meet Graph Learning. CoRR Roman Bresson, Giannis Nikolentzos, George Panagopoulos, Michail Chatzianastasis, Jun Pang, Michalis Vazirgiannis
2024	J	`jnl`	Metrics to Detect Small-Scale and Large-Scale Citation Orchestration. CoRR Iakovos Evdaimon, John P. A. Ioannidis, Giannis Nikolentzos, Michail Chatzianastasis, George Panagopoulos, Michalis Vazirgiannis
2024	J	`jnl`	Neural Graph Generator: Feature-Conditioned Graph Generation using Latent Diffusion Models. CoRR Iakovos Evdaimon, Giannis Nikolentzos, Michail Chatzianastasis, Hadi Abdine, Michalis Vazirgiannis
2024	A*	`conf`	Prot2Text: Multimodal Protein's Function Generation with GNNs and Transformers. AAAI Hadi Abdine, Michail Chatzianastasis, Costas Bouyioukos, Michalis Vazirgiannis
2024	J	`jnl`	Signed Graph Autoencoder for Explainable and Polarization-Aware Network Embeddings. CoRR Nikolaos Nakis, Chrysoula Kosma, Giannis Nikolentzos, Michail Chatzianastasis, Iakovos Evdaimon, Michalis Vazirgiannis
2024	—	`conf`	What Do GNNs Actually Learn? Towards Understanding Their Representations. LoG Giannis Nikolentzos, Michail Chatzianastasis, Michalis Vazirgiannis
2023	J	`jnl`	Explainable Multilayer Graph Neural Network for Cancer Gene Prediction. CoRR Michail Chatzianastasis, Michalis Vazirgiannis, Zijun Zhang
2023	J	`jnl`	Explainable Multilayer Graph Neural Network for cancer gene prediction. Bioinform. Michail Chatzianastasis, Michalis Vazirgiannis, Zijun Zhang
2023	A*	`conf`	Graph Ordering Attention Networks. AAAI Michail Chatzianastasis, Johannes F. Lutzeyer, George Dasoulas, Michalis Vazirgiannis
2023	Misc	`conf`	Neural Architecture Search with Multimodal Fusion Methods for Diagnosing Dementia. ICASSP Michail Chatzianastasis, Loukas Ilias, Dimitris Askounis, Michalis Vazirgiannis
2023	J	`jnl`	Neural Architecture Search with Multimodal Fusion Methods for Diagnosing Dementia. CoRR Michail Chatzianastasis, Loukas Ilias, Dimitris Askounis, Michalis Vazirgiannis
2023	J	`jnl`	Prot2Text: Multimodal Protein's Function Generation with GNNs and Transformers. CoRR Hadi Abdine, Michail Chatzianastasis, Costas Bouyioukos, Michalis Vazirgiannis
2023	—	`conf`	Supervised Attention Using Homophily in Graph Neural Networks. ICANN (4) Michail Chatzianastasis, Giannis Nikolentzos, Michalis Vazirgiannis
2023	J	`jnl`	Supervised Attention Using Homophily in Graph Neural Networks. CoRR Michail Chatzianastasis, Giannis Nikolentzos, Michalis Vazirgiannis
2023	A	`conf`	Weisfeiler and Leman go Hyperbolic: Learning Distance Preserving Node Representations. AISTATS Giannis Nikolentzos, Michail Chatzianastasis, Michalis Vazirgiannis
2023	J	`jnl`	What Do GNNs Actually Learn? Towards Understanding their Representations. CoRR Giannis Nikolentzos, Michail Chatzianastasis, Michalis Vazirgiannis
2022	J	`jnl`	Graph Ordering Attention Networks. CoRR Michail Chatzianastasis, Johannes F. Lutzeyer, George Dasoulas, Michalis Vazirgiannis
2022	—	`conf`	Mass Enhanced Node Embeddings for Drug Repurposing. SETN Michail Chatzianastasis, Giannis Nikolentzos, Michalis Vazirgiannis
2022	J	`jnl`	Weisfeiler and Leman go Hyperbolic: Learning Distance Preserving Node Representations. CoRR Giannis Nikolentzos, Michail Chatzianastasis, Michalis Vazirgiannis
2021	—	`conf`	Graph-based Neural Architecture Search with Operation Embeddings. ICCVW Michail Chatzianastasis, George Dasoulas, Georgios Siolas, Michalis Vazirgiannis
2021	J	`jnl`	Operation Embeddings for Neural Architecture Search. CoRR Michail Chatzianastasis, George Dasoulas, Georgios Siolas, Michalis Vazirgiannis