Towards Predictive Analysis on Disease Progression: A Variational Hawkes Process Model
| Autor: | Zhaohong Sun, Wei Dong, Jinlong Shi, Zhengxing Huang, Zhoujian Sun |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Heart Failure
Databases Factual business.industry Computer science Process (engineering) Disease Machine learning computer.software_genre Computer Science Applications Data modeling Health Information Management Disease Progression Trajectory Humans Observational study Artificial intelligence Electrical and Electronic Engineering Representation (mathematics) business Set (psychology) Hidden Markov model computer Biotechnology |
| Zdroj: | IEEE Journal of Biomedical and Health Informatics. 25:4195-4206 |
| ISSN: | 2168-2208 2168-2194 |
| DOI: | 10.1109/jbhi.2021.3101113 |
| Popis: | Massively available longitudinal data about long-term disease trajectories of patients provides a golden mine for the understanding of disease progression and efficient health service delivery. It calls for quantitative modeling of disease progression, which is a tricky problem due to the complexity of the disease progression process as well as the irregularity of time documented in trajectories. In this study, we tackle the problem with the goal of predictively analyzing disease progression. Specifically, we propose a novel Variational Hawkes Process (VHP) model to generalize disease progression and predict future patient states based on the clinical observational data of past disease trajectories. First, Hawkes Process captures the intensity of irregular visits in a trajectory documented to medical facilities and controls the aforementioned information flowing into future visits. Thereafter, the captured intensity is incorporated into a Variational Auto-Encoder to generate the representation of the future partial disease trajectory for a target patient in a predictive manner. To further improve the prediction performance, we equip the proposed model with a disease trajectory discriminator to distinguish the generated trajectories from real ones. We evaluate the proposed model on two public datasets from the MIMIC-III database pertaining to heart failure and sepsis patients, respectively, and one real-world dataset from a Chinese hospital pertaining to heart failure patients with multiple admissions. Experimental results demonstrate that the proposed model significantly outperforms state-of-the-art baselines, and may derive a set of practical implications that can benefit a wide spectrum of management and applications on disease progression. |
| Databáze: | OpenAIRE |
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