D1. 9.1 Simultaneous ontologies

In this deliverable we describe a solution for incorporating background knowledge into the OntoGen system for semi-automatic topic ontology construction which was developed as a part of deliverable D1. 7.1 Ontology generation from scratch. This makes it easier for different users to construct different topic ontologies on the top of same document collection. To achieve this, a word weighting is learned based on the user’s background knowledge and than used bz OntoGen’s machine learning and text mining algorithms.