Week 8

Graph Neural Networks

Lecture by Kirill Khrylchenko

Seminar by Sergei Makeev and Alexandr Andreev

Youtube:

• Lecture
• Seminar

This week we finish our discussion of transformer models and then proceed to graph neural networks for recommendations:

1. Transformer models for recommendations at Yandex
2. User-item bipartite graph models - NGCF, LightGCN
3. GraphSAGE and Pinterest ecosystem - random walks with Pixie, PinSage, MultiBiSage

During the seminar, Sergei and Alexandr present our 4'th place solution at RecSys Challenge 2025.