OWLGrEd Ontology Visualizer
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The OWLGred Ontology Visualizer, developed by the Institute of Mathematics and Computer Science at the University of Latvia, provides a compact graphical representation of OWL 2 ontologies using UML-based notation. It features a functional programming approach for data transformation, leverages the OWL API for reading ontologies, and generates interactive visualizations on an HTML5 canvas. Future enhancements include ontology verbalization, editing, and improved visualization sharing capabilities.
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Impact in Numbers
500+ successful projects delivered
200+ web and mobile apps launched
42-month average client engagement
30+ active projects at any time
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Fintech
Healthcare
Education (E-Learning)
Sustainability & Compliance
Real Estate
Energy
Customer Experience platforms
鏝 Flexible Engagement Models
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AI-accelerated delivery
Strong focus on long-term partnerships
Highly rated on Clutch and Google Reviews
Proactive and adaptable to change
Fully GDPR-compliant and security-conscious
Visit: emvigotech.com
Contact: sales@emvigotech.com
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OWLGrEd Ontology Visualizer
- 1. OWLGrEd Ontology Visualizer Institute of Mathematics and Computer Science (IMCS) University of Latvia Renrs Liepi邸 - Mikus Grasmanis - Uldis Bojrs (CaptSolo) ISWC 2014 Developers Workshop
- 2. Online ontology visualizer http://owlgred.lumii.lv/online_visualization compact graphical notation for OWL 2 based on UML OWL class expressions in diagram elements Manchester OWL Syntax for class expressions more info re. OWLGrEd notation: http://owlgred.lumii.lv/notation
- 3. Ontology uploads (last 4 months): >700
- 6. koala.owl OWL API calls diagram description in JSON diagram drawing (canvas) server side running in JVM: Clojure + Java
- 7. Graph generation module data transformation pipeline functional programming approach graph generation module = implemented in Clojure uses OWL API to read the ontology generates diagram description (in JSON) ordered list of ~70 transformation rules match OWL axioms -> generate diagram elements applies styling information style configuration file
- 9. Layout module: calculate optimal layout based on diagram description enrich JSON description with layout information implemented in Java Visualization: read diagram JSON generate interactive visualization (zoom, pan, select) HTML5 canvas based on KineticJS
- 10. Future Ideas Ontology verbalization http://userstudies.lumii.lv/g/owlgred-cnl/extverb_on Ontology editing Move from canvas to vector graphics Visualization publication and sharing
- 11. More info OWLGrEd Ontology Visualizer paper http://ceur-ws.org/Vol-1268/ OWLGrEd publications http://owlgred.lumii.lv/research_and_develop ment E-mail us your ideas & questions uldis.bojars@gmail.com - @CaptSolo owlgred@lumii.lv
Editor's Notes
- #7: a modular data transformation pipeline - OWL API kudos (!!!)
- #8: attempts to show the ontology in the most compact way - >1 way to display the same information (rules to choose which way to use when)
- #12: please get in touch: - visualization can be adapted / tuned - tool can be integrated (in other apps) - or you may have other ideas how to use it