English

Neural graph embeddings as explicit low-rank matrix factorization for link prediction

Social and Information Networks 2022-08-29 v3 Artificial Intelligence Machine Learning Numerical Analysis Numerical Analysis

Abstract

Learning good quality neural graph embeddings has long been achieved by minimizing the point-wise mutual information (PMI) for co-occurring nodes in simulated random walks. This design choice has been mostly popularized by the direct application of the highly-successful word embedding algorithm word2vec to predicting the formation of new links in social, co-citation, and biological networks. However, such a skeuomorphic design of graph embedding methods entails a truncation of information coming from pairs of nodes with low PMI. To circumvent this issue, we propose an improved approach to learning low-rank factorization embeddings that incorporate information from such unlikely pairs of nodes and show that it can improve the link prediction performance of baseline methods from 1.2% to 24.2%. Based on our results and observations we outline further steps that could improve the design of next graph embedding algorithms that are based on matrix factorization.

Keywords

Cite

@article{arxiv.2011.09907,
  title  = {Neural graph embeddings as explicit low-rank matrix factorization for link prediction},
  author = {Asan Agibetov},
  journal= {arXiv preprint arXiv:2011.09907},
  year   = {2022}
}
R2 v1 2026-06-23T20:22:25.989Z