Author

Alexandros Iosifidis

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#machine learning Preprint Oct 2026

Gated Graph Neural Networks for Learning Hidden Independent Cascade Dynamics

Information and infectious diseases spread through social networks, but the spreading probabilities driving them are hard to estimate without per-node activation times. Applications seldom supply these, and inference must instead proceed through indirect and noisy proxies for the terminal infection states. We study thi...

A. Goel, Illia Oleksiienko, M. Wilinski et al. · 0 citations

#artificial intelligence Nov 2025

LOBERT: Generative AI Foundation Model for Limit Order Book Messages

This work introduces LOBERT, a general-purpose encoder-only foundation model for LOB data suitable for downstream fine-tuning and achieves leading performance in tasks such as predicting mid-price movements and next messages, while reducing the required context length compared to previous methods.

Eljas Linna, K. Baltakys, Alexandros Iosifidis et al. · arXiv.org · 3 citations