公开(公告)号：GB2581461A

公开(公告)日：2020-08-19

申请号：GB202009248

申请日：2018-11-30

Applicant: IBM

Inventor： KEVIN NORTHRUP ,  CRAIG TRIM ,  TERRY HICKEY ,  ABISOLA ADENIRAN ,  KENJI NORTHRUP

IPC: G06F16/93 ,  G06F40/00 ,  G06F40/30

Abstract: A method for normalizing a key in a document image includes identifying a candidate key corresponding to an object in a document image with a key in key ontology data, based on that the candidate key is semantically interchangeable with the key. A context, position, and style of each objects of the document image is represented in the document metadata. The candidate key is normalized into a normal form. A key class corresponding to the normal form is determined and a confidence score indicating a likelihood of the key class being representative of the candidate key is assessed. A semantic database is updated with the key class upon verification for enhanced processing of future documents.