Bijan Parsia
Bijan Parsia is a computer scientist whose AI research spans OWL ontology tools, reasoning systems and Semantic Web standards. He worked in Maryland's Mindswap group before joining Manchester's Information Management Group in 2006. With collaborators, he coauthored papers on Swoop, an OWL ontology browser and editor, and Pellet, an OWL-DL reasoner, and contributed to the OWL 2 Primer. His paper on OWL justifications won Best Paper at ISWC in 2008; he completed a philosophy doctorate in 2009 and became a Reader in 2014. He was re-elected to Manchester's Senate in April 2025, coauthored a 2026 study on type 1 diabetes data and smartwatch interfaces, and is Professor of Computer Science at Manchester as of October 2026.
- Now at
- University of Manchester
- Badges
Timeline
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2005
Swoop for OWL ontologies
In 2005, he coauthors a paper describing Swoop, a browser and editor tailored to OWL ontologies, with features for display, navigation, editing and collaborative annotation.
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2006
Maryland to Manchester
Before joining Manchester in 2006, he works as a Faculty Research Associate in the University of Maryland's Mindswap group. He joins Manchester's Information Management Group in 2006.
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2007
The Pellet reasoner
He coauthors a 2007 paper presenting Pellet, a Java, open-source OWL-DL reasoner that supports reasoning with individuals, ontology debugging and OWL/Rule hybrid reasoning.
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2008
An ISWC Best Paper
In 2008, his paper with Matthew Horridge and Uli Sattler, “Laconic and Precise Justifications in OWL,” wins Best Paper at ISWC.
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2009
A philosophy doctorate
After graduate training in philosophy at the University of North Carolina at Chapel Hill, he completes a philosophy doctorate at the University of Maryland College Park in August 2009.
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2012
The OWL 2 Primer
He contributes to the OWL 2 Primer with Pascal Hitzler, Markus Krötzsch, Peter F. Patel-Schneider and Sebastian Rudolph. The second edition receives W3C Recommendation status in December 2012.
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2012–2014
Promotion to Reader
At Manchester, he is promoted to Senior Lecturer in 2012 and Reader in 2014.
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As of October 2026
Professor at Manchester
In April 2025, he is re-elected to the University of Manchester Senate for a term from September 2025 to August 2028. In 2026, he coauthors a multimodal dataset study on glucose interpretation, treatment decisions and smartwatch visualisation for type 1 diabetes. As of October 2026, he is Professor of Computer Science at Manchester, in its Information Management group.
Career
- Since 2006University of ManchesterProfessor of Computer Science, Senior Lecturer
- Until 2006University of MarylandFaculty Research Associate
Education
- 2009University of MarylandPhD in philosophy
- University of North Carolina at Chapel HillGraduate training in philosophy
Sources and credits
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- A tool for working with web ontologies
- Bijan Parsia at the University of Manchester
- Pellet: A practical OWL-DL reasoner
- Prof. Dr. Pascal Hitzler
- Bijan Parsia
- Multimodal dataset on glucose interpretation, treatment decisions and smartwatch visualisation for type 1 diabetes
- Senate nominations and election results


