Both topics are about breast cancer (ca is an abbreviation for cancer). The Vanilla LDA topic, however, contains unrelated yet highly ranked words (e.g., eye, glaucoma, colonoscopy, albuterol). The Red-LDA topic was preferred by the domain experts.
Citation: The PLOS ONE Staff (2014) Correction: Redundancy-Aware Topic Modeling for Patient Record Notes. PLoS ONE 9(11): e114677. https://doi.org/10.1371/journal.pone.0114677
Published: November 24, 2014
Copyright: © 2014 The PLOS ONE Staff. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.