Skip to content (access key 's')
Logo of Technion
Logo of CS Department

The Taub Faculty of Computer Science Events and Talks

Clinical Contradiction Detection
event speaker icon
Dave Makhervaks (M.Sc. Thesis Seminar)
event date icon
Thursday, 27.04.2023, 09:30
event location icon
Zoom Lecture: 99219466853 and Taub 601
event speaker icon
Advisor: Dr. Kira Radinsky
Detecting contradictions in text is essential in determining the validity of the literature and sources that we consume. Medical corpora are riddled with conflicting statements. This is due to the large throughput of new studies and the difficulty in replicating experiments, such as clinical trials. Detecting contradictions in this domain is hard since it requires clinical expertise. In this work, we present a distant supervision approach that leverages a medical ontology to build a seed of potential clinical contradictions over 22 million medical abstracts. As a result, we automatically build a labeled training dataset consisting of paired clinical sentences that are grounded in an ontology and represent potential medical contradiction. The dataset is used to weakly-supervise state-of-the-art deep learning models showing significant empirical improvements across multiple medical contradiction datasets.