Visualizing Ontologies and Ontology Mappings May 17 th, 2012 (NIH/NCI Nano Working Group) Margaret-Anne Storey, Bo Fu, Lars Grammel, The CHISEL Group, University of Victoria 1

Visualizing Mappings between Terms and between Ontologies 2

CogZ Cognitive Support and Visualization for Human- Guided Mapping Systems

Ontology alignment Mapping terms from one ontology to another, preserving structural relationships Research emphasis mostly on the algorithm Select ontologies Alignment algorithm Potential mappings Verified mappings Mapping complete

Ontology alignment continued Cognitively challenging The user must: – Make decisions about mapping candidates – Supply custom mappings that were missed – Understand the domains and structure of both ontologies – Remember decisions that were made Can be made easier through cognitive support

Visualization plug-in for Prompt Prompt: framework to support ontology alignment – Added a plug-in mechanism and perspectives to Prompt to support other algorithms and visualizations – CogZ: Integrating various visualizations and filters to support the user’s decision making process

the CHISEL group, University of Victoria

CogZ on the web (prototype only)

Multiple Ontologies and Mappings 9

Mappings between Terms - Matrix 10

Mappings between Ontologies 11

Next steps Integrating the matrix and graph based mapping views in BioMixer Appreciate feedback on these views! 12

Nanoparticle ontology University of Victoria13

University of Victoria14

Mappings between NPO and other ontologies

Visualization requirements for Nanoparticle ontology? Exploration, navigation, search? Support error checking? Changes across ontology versions? Publication and syndication of changes? Distinguish between original and imported classes/ontologies (upper versus domain ontologies)? Distinguish actual from inferred relations? Mappings? Support for alignment? Scalability? Is NPO stable in terms of size? Non graph views? e.g. charts? Collaboration features? Need for embeds? 16