Advanced Drug Interaction Event Prediction

• URL: http://arxiv.org/abs/2402.11472v4
• Date: Wed, 22 May 2024 19:39:52 GMT
• Title: Advanced Drug Interaction Event Prediction
• Authors: Yingying Wang, Yun Xiong, Xixi Wu, Xiangguo Sun, Jiawei Zhang,
• Abstract summary: Existing models often neglect the distinctive characteristics of individual event classes when integrating multi-source features. We propose a hierarchical pre-training task that aims to capture crucial aspects of drug molecular structure and intermolecular interactions. We construct a graph by strategically sampling data from distinct event types and design subgraph prompts utilizing pre-trained node features.
• Score: 15.69547371747469
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Predicting drug-drug interaction adverse events, so-called DDI events, is increasingly valuable as it facilitates the study of mechanisms underlying drug use or adverse reactions. Existing models often neglect the distinctive characteristics of individual event classes when integrating multi-source features, which contributes to systematic unfairness when dealing with highly imbalanced event samples. Moreover, the limited capacity of these models to abstract the unique attributes of each event subclass considerably hampers their application in predicting rare drug-drug interaction events with a limited sample size. Reducing dataset bias and abstracting event subclass characteristics are two unresolved challenges. Recently, prompt tuning with frozen pre-trained graph models, namely "pre-train, prompt, fine-tune" strategy, has demonstrated impressive performance in few-shot tasks. Motivated by this, we propose an advanced method as a solution to address these aforementioned challenges. Specifically, our proposed approach entails a hierarchical pre-training task that aims to capture crucial aspects of drug molecular structure and intermolecular interactions while effectively mitigating implicit dataset bias within the node embeddings. Furthermore, we construct a prototypical graph by strategically sampling data from distinct event types and design subgraph prompts utilizing pre-trained node features. Through comprehensive benchmark experiments, we validate the efficacy of our subgraph prompts in accurately representing event classes and achieve exemplary results in both overall and subclass prediction tasks.

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