Additionally, a variety of work exists in the general field of stemmer evaluation, though much of it centers on the information retrieval community.
the relative effects of these treatments on coherence are magnified as the number of topics increases; while no ArXiv treatment differs significantly in coherence at 10 topics, at 200, the four strongest treatments (Lovins, Paice-Husk, five-truncation and four-truncation) are significantly worse.