Combining multi-level evidence for medical record retrieval

Authors:
Dongqing Zhu;Ben Carterette
Affiliations:
University of Delaware, Newark, DE, USA;University of Delaware, Newark, DE, USA
Venue:
Proceedings of the 2012 international workshop on Smart health and wellbeing
Year:
2012

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Abstract

The increasing prevalence of electronic health records containing rich information about a patient's health and physical condition has the potential to transform research in health and medicine. In this work, we present a health record search system for finding patients matching certain inclusion criteria (specified as keyword queries) for clinical studies. In particular, our system aggregates multi-level evidence and combines proven statistical IR models, both in an innovative way, and achieves a 20% MAP (mean average precision) improvement over a strong baseline. Moreover, our cross-validation results show that the overall performance of our system is comparable to other top-performing systems on the same task.