LIMSI @ 2015 Clinical Decision Support Track

In this paper we present our participation to the 2015 TREC Clinical Decision Support (CDS) Track. The goal of this track is to find relevant medical literature for a given medical case report which should help address a specific clinical aspect of the case (known as the Clinical Question Type). We investigated the relative merit of conceptversus word-based representations of the information contained in the case reports, and experimented with different approaches to model Clinical Question Types. We submitted six runs in total, three for subtask A (CDS search without information on the patient’s diagnosis) and subtask B (CDS search with information on the patient’s diagnosis for topics from the Test and Treatment Clinical Question Types). In both subtasks our best runs were MeSH-based, and they achieved a P@10 and infNDCG of 0.37 and 0.25, and 0.47 and 0.35, for subtask A and B respectively.