rSim: Simplifying an RDF Graph at the Visualization Tier for Non-Expert Users.
Rathachai Chawuthai, Hideaki Takeda · International Semantic Web Conference · 2015
Using a concept-map or a node-link diagram for representing knowledge can enhance the learning ability of users. However, the queried RDF graph can be complex and difficult for non-expert users to read, because many redundant triples entailed by RDFS and OWL rules are also included. Existing tools can rearrange, filter, highlight and summarize a graph for visualization but they require human effort. For this reason, this research attempts to use Semantic Web rules and schemas to simplify a graph automatically at the visualization tier. The prototype shows that the simplified graph is easier to read than the original one. In future, this method will be positioned as a plugin for other visualization tools in order to serve attractive RDF-based knowledge to users.