Aravind Krishna Joshi (August 5, 1929 – December 31, 2017) was the Henry Salvatori Professor of Computer and Cognitive Science in the computer science department of the University of Pennsylvania. Joshi defined the tree-adjoining grammar formalism which is often used in computational linguistics and natural language processing.^[1]

This article needs additional citations for verification. (January 2018)

Joshi studied at Pune University and the Indian Institute of Science, where he was awarded a BE in electrical engineering and a DIISc in communication engineering respectively. Joshi's graduate work was done in the electrical engineering department at the University of Pennsylvania, and he was awarded his PhD in 1960. He became a professor at Penn and was the co-founder and co-director of the Institute for Research in Cognitive Science.^[2][3]

• Guggenheim fellow, 1971–72^[4]
• Fellow of the Institute of Electrical and Electronics Engineers (IEEE), 1976
• Best Paper Award at the National Conference on Artificial Intelligence, 1987
• Founding Fellow of the American Association for Artificial Intelligence (AAAI), 1990^[5]
• IJCAI Award for Research Excellence, 1997
• Fellow of the Association for Computing Machinery, 1998
• Elected to the National Academy of Engineering, 1999
• First to be awarded the Association for Computational Linguistics Lifetime Achievement Award at the 40th anniversary meeting of the ACL, 2002^[6]
• Awarded the Rumelhart Prize, 2003
• Benjamin Franklin Medal in Computer and Cognitive Science, 2005
• Doctor honoris causa of mathematical and physical sciences, Charles University in Prague, October 30, 2013^[7]
• S.-Y. Kuroda Prize of the SIG Mathematics of Language of the ACL, 2013^[8]