A Multi-view Divergence-Convergence Feature Augmentation Framework for Drug-related Microbes Prediction

TL;DR

This paper introduces a novel multi-view framework that enhances drug-microbe association prediction by optimizing and fusing diverse information sources through adversarial learning and attention mechanisms.

Contribution

It proposes a divergence-convergence framework with adversarial learning and bidirectional attention for improved multi-view feature integration in drug-microbe prediction.

Findings

Significantly improves prediction accuracy over existing methods.

Effective in cold start scenarios for new drugs and microbes.

Demonstrates stability and reliability across multiple experiments.

Abstract

In the study of drug function and precision medicine, identifying new drug-microbe associations is crucial. However, current methods isolate association and similarity analysis of drug and microbe, lacking effective inter-view optimization and coordinated multi-view feature fusion. In our study, a multi-view Divergence-Convergence Feature Augmentation framework for Drug-related Microbes Prediction (DCFA_DMP) is proposed, to better learn and integrate association information and similarity information. In the divergence phase, DCFA_DMP strengthens the complementarity and diversity between heterogeneous information and similarity information by performing Adversarial Learning method between the association network view and different similarity views, optimizing the feature space. In the convergence phase, a novel Bidirectional Synergistic Attention Mechanism is proposed to deeply synergize the complementary features between different views, achieving a deep fusion of the feature space. Moreover, Transformer graph learning is alternately applied on the drug-microbe heterogeneous graph, enabling each drug or microbe node to focus on the most relevant nodes. Numerous experiments demonstrate DCFA_DMP's significant performance in predicting drug-microbe associations. It also proves effectiveness in predicting associations for new drugs and microbes in cold start experiments, further confirming its stability and reliability in predicting potential drug-microbe associations.