@article{Grannis_Dixon_Xia_Wu_2013, title={Using Information Entropy to Monitor Chief Complaint Characteristics and Quality}, volume={5}, url={https://ojphi.org/ojs/index.php/ojphi/article/view/4543}, DOI={10.5210/ojphi.v5i1.4543}, abstractNote={As we enter the ’big medical data’ era, a new core competency is to continuously monitor quality of data collected from electronic sources, including population surveillance data sources. We describe how entropy, a fundamental information measure, can help monitor the characteristics of chief complaints in an operational surveillance system.}, number={1}, journal={Online Journal of Public Health Informatics}, author={Grannis, Shaun and Dixon, Brian and Xia, Yuni and Wu, Jianmin}, year={2013}, month={Mar.} }