Patent ID: 9189461
Filing Date: 2015-11-17
Classification: G06F,G06K

Abstract:
1. A computer implemented method of generating a page frame sequential hierarchical structure associated with a sequence of pages associated with a digital version of a document comprising: a) obtaining a sequence of pages representing the document; b) defining a set of page frame features associated with each page of the sequence of pages, each page frame feature defined by a feature value type; c) computing a set of feature values associated with the set of page frame features for each page of the sequence; d) generating a set of n-grams from the sequence of pages, an n-gram including an ordered sequence of n page frame features provided by a sequence of n pages; e) electing sequential n-grams from the set of n-grams, the sequential n-grams defined as similar contiguous n-grams; f) selecting the most frequent sequential n-gram from the elected sequential n-grams; and g) generating a new sequence of the pages by matching the selected most frequent sequential n-gram against the sequence of pages associated with the document, replacing matched pages of the sequence of pages with a respective node, and associating the matched pages of the sequence of pages as children of the respective node, the new sequence of pages representing the page frame hierarchical sequential structure associated with the document.