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Anthony Cohn

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Anthony G. Cohn
Cohn at AAAI 2026
Alma materUniversity of Essex
Known forRegion Connection Calculus (RCC), Qualitative spatial reasoning]
AwardsFellow of the Royal Academy of Engineering (FREng, 2015)[1]
Herbert A. Simon Prize (2021)[2]
IJCAI Donald E. Walker Award (2015)[3]
EurAI Distinguished Service Award (2024)[4]
Scientific career
FieldsArtificial Intelligence, Knowledge Representation, Spatial–temporal reasoning
InstitutionsUniversity of Leeds, Alan Turing Institute
Patrick J. Hayes
Websiteeps.leeds.ac.uk/computing/staff/76/professor-anthony-tony-g-cohn-freng-flsw-ceng-citp

Anthony G. Cohn is a British computer scientist who is Professor of Automated Reasoning at the University of Leeds. He is globally recognized for his foundational work in artificial intelligence (AI), especifically in the field of qualitative spatial reasoning and the development of the Region Connection Calculus (RCC).[1]

Education

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Cohn attended Dr Challoner's Grammar School before receiving his BSc and PhD from the University of Essex.[5] His doctoral thesis, titled Mechanising a Particularly Expressive Many Sorted Logic, was completed in 1983 under the supervision of Patrick Hayes.[5]

Career and research

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After a decade at the University of Warwick, Cohn joined the University of Leeds in 1990, where he founded the research group in Artificial Intelligence.[1] He is also a Fellow and researcher at the Alan Turing Institute, where he collaborates on evaluating foundation models and large language models.[1]

His research primarily focuses on knowledge representation, spatial reasoning, and the integration of vision and language for activity recognition.[4]

Qualitative spatial reasoning

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Cohn is widely cited for co-developing with Randell and Cui the Region Connection Calculus (RCC), a formal language used to describe topological relationships between spatial regions. The 1992 paper introducing this framework received the KR Test-of-Time Classic Paper Award in 2020 for its enduring impact on AI and Geographic Information Science.[6]

Awards and recognitions

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Cohn is the only researcher to have received Distinguished Service Awards from all three major international AI societies: the AAAI (2012), IJCAI (2015), and EurAI (2024).[4][7]

Major awards

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  • **EurAI Distinguished Service Award** (2024): For four decades of service to the European AI community.[7]
  • **KR Inc Distinguished Service Award** (2024): For leadership in the Knowledge Representation and Reasoning community.[4]
  • **Herbert A. Simon Prize for Advances in Cognitive Systems** (2021): Awarded for his work on qualitative representation and visually-grounded language processing.[2]
  • **IJCAI Donald E. Walker Distinguished Service Award** (2015): Recognizing his substantial contributions to the international AI community.[3]
  • **AAAI Distinguished Service Award** (2012): For "extraordinary and sustained service" to the field of AI.[5]
  • **BCS Machine Intelligence Prize** (2004): For the Cogvis project.[5]

Fellowships

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He is an elected Fellow of several major scientific and engineering bodies:

Selected publications

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  • Randell, D. A.; Cui, Z.; Cohn, A. G. (1992). "A spatial logic based on regions and connection". Proc. 3rd Int. Conf. on Knowledge Representation and Reasoning. pp. 165–176.
  • Cohn, A. G.; Hazarika, S. M. (2001). "Qualitative spatial representation and reasoning: An overview". Fundamenta Informaticae. 46 (1–2): 1–29.

References

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  1. ^ a b c d e "Professor Anthony Cohn". The Alan Turing Institute. Retrieved 2026-01-27.
  2. ^ a b "2021 Herbert A. Simon Prize for Advances in Cognitive Systems" (PDF). University of Leeds. Retrieved 2026-01-27.
  3. ^ a b "IJCAI-15 Awards". International Joint Conferences on Artificial Intelligence. Retrieved 2026-01-27.
  4. ^ a b c d e "Professor honoured with two awards for outstanding contributions to AI". University of Leeds. 2024-10-21. Retrieved 2026-01-27.
  5. ^ a b c d e f "Curriculum Vitae - Anthony G. Cohn" (PDF). University of Leeds. 2024-04-04. Retrieved 2026-01-27.
  6. ^ "KR 2020 Test-of-Time Awards" (PDF). KR Proceedings. Retrieved 2026-01-27.
  7. ^ a b c "EurAI Distinguished Service Award 2024". European Association for Artificial Intelligence. Retrieved 2026-01-27.
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