The SemanText system is a demonstration topic map–based application written in Python that builds semantic networks from topic maps. As its developer, I first announced the SemanText system at the XML Europe 2000 conference. Semantic network nodes are created from topics and topic types. Links are created from associations between the topics. Additional rule-based information can be added to allow the semantic network processor to infer new knowledge beyond the class-instance relationship that is defined in the standard.
SemanText supports topic map creation, modification, and browsing. The current version of SemanText supports only the ISO 13250 (2000) topic map definition. Work is under way to support the XTM model now ...