Definition of "preprocessing"

preprocessing

verb
1. present participle and gerund of preprocess
noun
countable and uncountable, plural preprocessings
1. The act of processing beforehand.
  Quotations
  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, page 108
2. The material formed by a preprocess.