Classification of documents by form and content
This paper presents a modular software system, which classifies a large variety of office documents according to layout form and textual content. It consists of the following components: layout analysis, pre-classification, OCR interface, fuzzy string matching, text categorization, lexical, syntactical and semantic analysis. The system has been applied to the following tasks: presorting of forms, reports and letters, index extraction for archiving and retrieval, page type classification and text column analysis of real estate register documents, in-house mail sorting and electronic distribution to departments. The architecture, modules, and practical results are described.
classification layout analysis document analysis document archiving and retrieval document segmentation text classification document image processing