[1]ZHANG Heng,HE Wenbin,HE Jun,et al.Multi-task tumor stage learning model with medical knowledge enhancement[J].CAAI Transactions on Intelligent Systems,2021,16(4):739-745.[doi:10.11992/tis.202010005]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
16
Number of periods:
2021 4
Page number:
739-745
Column:
学术论文—知识工程
Public date:
2021-07-05
- Title:
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Multi-task tumor stage learning model with medical knowledge enhancement
- Author(s):
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ZHANG Heng1; HE Wenbin2; HE Jun1; JIAO Zengtao2; LIU Hongyan3
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1. School of Information, Renmin University of China, Beijing 100872, China;
2. Yidu Cloud (Beijing) Technology Co., Ltd, Beijing 100191, China;
3. Department of Management Science and Technology, Tsinghua University, Beijing 100084, China
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- Keywords:
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tumor staging; text classification; machine reading comprehension; multi-task learning; unbalanced classification; smart healthcare; knowledge representation; attention mechanism
- CLC:
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TP391
- DOI:
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10.11992/tis.202010005
- Abstract:
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Tumor staging is the process of inferring the corresponding stage of tumors based on patients’ electronic health records (EHR). The serious uneven data distribution in the types of EHRs has certain challenges on tumor stage prediction through in-depth learning. Accordingly, this paper proposes a knowledge enhanced multi-task (KEMT) model and considers tumor stage reasoning as a text classification task of EHR. It also introduces medical attributes that doctors referred to in tumor stage prediction and introduces a medical problem-based machine reading comprehension task. The tasks are jointly studied by building a real-world dataset of tumor staging with medical institutions. Experimental results show that the KEMT model combines medical knowledge with a neural network and gets a higher precision rate of prediction than the traditional text classification models. Under the condition of uneven data distribution, the accuracy of small samples is improved by 4.2%, for which the model also accounts.