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Using Clinical Notes with Time Series Data for ICU Management

Swaraj Khadanga, Karan Aggarwal, Shafiq Joty, Jaideep Srivastava


Abstract
Monitoring patients in ICU is a challenging and high-cost task. Hence, predicting the condition of patients during their ICU stay can help provide better acute care and plan the hospital’s resources. There has been continuous progress in machine learning research for ICU management, and most of this work has focused on using time series signals recorded by ICU instruments. In our work, we show that adding clinical notes as another modality improves the performance of the model for three benchmark tasks: in-hospital mortality prediction, modeling decompensation, and length of stay forecasting that play an important role in ICU management. While the time-series data is measured at regular intervals, doctor notes are charted at irregular times, making it challenging to model them together. We propose a method to model them jointly, achieving considerable improvement across benchmark tasks over baseline time-series model.
Anthology ID:
D19-1678
Volume:
Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP)
Month:
November
Year:
2019
Address:
Hong Kong, China
Editors:
Kentaro Inui, Jing Jiang, Vincent Ng, Xiaojun Wan
Venues:
EMNLP | IJCNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
6432–6437
Language:
URL:
https://aclanthology.org/D19-1678
DOI:
10.18653/v1/D19-1678
Bibkey:
Cite (ACL):
Swaraj Khadanga, Karan Aggarwal, Shafiq Joty, and Jaideep Srivastava. 2019. Using Clinical Notes with Time Series Data for ICU Management. In Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP), pages 6432–6437, Hong Kong, China. Association for Computational Linguistics.
Cite (Informal):
Using Clinical Notes with Time Series Data for ICU Management (Khadanga et al., EMNLP-IJCNLP 2019)
Copy Citation:
PDF:
https://aclanthology.org/D19-1678.pdf
Code
 kaggarwal/ClinicalNotesICU +  additional community code
Data
MIMIC-III