Medical Entity Corpus with PICO elements and Sentiment Analysis
Markus Zlabinger, Linda Andersson, Allan Hanbury, Michael Andersson, Vanessa Quasnik, Jon Brassey · 2018
In this paper, we present our process to establish a PICO and a sentiment annotated corpus of clinical trial publications.PICO stands for Population, Intervention, Comparison and Outcome -these four classes can be used for more advanced and specific search queries.For example, a physician can determine how well a drug works only in the subgroup of children.Additionally to the PICO extraction, we conducted a sentiment annotation, where the sentiment refers to whether the conclusion of a trial was positive, negative or neutral.We created both corpora with the help of medical experts and non-experts as annotators.