Latent Graphs for Semi-Supervised Learning on Biomedical Tabular Data

TL;DR

This paper introduces a method for inferring latent graphs to better capture data relationships in biomedical tabular data, improving semi-supervised learning performance by propagating information through these graphs.

Contribution

It presents a novel approach for constructing latent graphs that enhance semi-supervised learning by exploiting inter-instance relationships in biomedical data.

Findings

Outperforms state-of-the-art methods on biomedical datasets

Effectively captures inter-instance relationships

Improves semi-supervised learning accuracy

Abstract

In the domain of semi-supervised learning, the current approaches insufficiently exploit the potential of considering inter-instance relationships among (un)labeled data. In this work, we address this limitation by providing an approach for inferring latent graphs that capture the intrinsic data relationships. By leveraging graph-based representations, our approach facilitates the seamless propagation of information throughout the graph, effectively incorporating global and local knowledge. Through evaluations on biomedical tabular datasets, we compare the capabilities of our approach to other contemporary methods. Our work demonstrates the significance of inter-instance relationship discovery as practical means for constructing robust latent graphs to enhance semi-supervised learning techniques. The experiments show that the proposed methodology outperforms contemporary state-of-the-art methods for (semi-)supervised learning on three biomedical datasets.