US Patent 10275523 Document data classification using a noise-to-content ratio

A method and system for classifying document data is described. The method may include classifying a first portion of an electronic document as substantive content or noise, classifying a second portion of the electronic document as substantive content or noise, determining a first feature of the first portion of the electronic document indicative of substantive content using a machine learning algorithm, and determining a second feature of the second portion of the electronic document indicative of noise using the machine learning algorithm.