Automated classification of documents and information

What is classification? Classification is to assign one or more tags/labels to documents and information. For example, a label could be a document type (letter, invoice, report, etc.), target group, or topic / theme. Based on a label, a document can then be properly included in a business process, or can also simply be stored in a (new) DMS / ECM system. 

It is easy to imagine the problem of doing a manual classification of documents. Although librarians and information specialists are highly skilled, it is difficult for a team to classify content consistently and unambiguously, even if they are following a standard template. Manual document classification is subjective, time consuming and often does not get the priority it needs. The accuracy, and therefore the usefulness of the classification is in question.