preprocessing

Etymology

verb

1. present participle and gerund of preprocess

noun

1. The act of processing beforehand.
   In pattern recognition we can divide an entire task into three phases: data acquisition, data preprocessing, and decision classification. 2002, Sing-Tze Bow, editor, Pattern Recognition and Image Preprocessing, Marcel Dekker, Inc.
   Despite extensive data cleaning and preprocessing, it was not possible to completely eliminate all noise in such a large corpus. 2018, Clarence Green, James Lambert, “Advancing disciplinary literacy through English for academic purposes: Discipline-specific wordlists, collocations and word families for eight secondary subjects”, in Journal of English for Academic Purposes, volume 35, →DOI, page 108
2. The material formed by a preprocess.