‘Nobel Prize of computing:’ U of T Engineering alumnus Alfred Aho receives A.M. Turing Award

Alfred Aho, an alumnus of the University of Toronto’s Faculty of Applied Science & Engineering, and his collaborator Jeffrey Ullman have received the 2020 A.M. Turing Award – widely considered the “Nobel Prize of computing” – for their influential work in algorithms and compilers.

In the late 1960s, Aho and Ullman were key members of research centre Bell Labs. There, they helped create the compiler, a crucial tool that takes in software programs written by humans and turns them into language that computers can understand. Their pattern-matching algorithms are run daily on computers around the world today, while their textbooks on algorithms and compilers have been used to educate generations of software engineers.

The A.M. Turing Award award is named after mathematician and computer scientist Alan M. Turing, who articulated the mathematical foundation and limits of computing. It carries a $1-million prize with financial support provided by Google Inc.

“It’s impossible to overstate the significance of Professor Aho’s foundational contributions to programming and software engineering,” says Professor Will Cluett, director of engineering science. “He is a towering figure in the field, and an inspiration to classes of Engineering Science students, past, present and future.”

Aho, who earned a bachelor of applied science in engineering physics (now engineering science) from U of T in 1963, is currently the Lawrence Gussman Professor Emeritus of Computer Science at Columbia University.

His many honours include the IEEE John von Neumann Medal and the NEC C&C Foundation C&C Prize. He is also a member of the U.S National Academy of Engineering, the American Academy of Arts and Sciences, and the Royal Society of Canada. He is a Fellow of ACM, IEEE, Bell Labs, and the American Association for the Advancement of Science. In 2015, Aho received an honorary degree from U of T and, in 2018, he was inducted into the Engineering Alumni Hall of Distinction at the Engineering Alumni Network Awards.

“The software researchers develop today would not be possible without the fundamental work of Alfred Aho and Jeffrey Ullman. They helped define the modern programming industry, and therefore shaped the very world around us,” says Chris Yip, dean of U of T Engineering. “On behalf of U of T Engineering, my enthusiastic congratulations on this incredibly prestigious recognition. We have long been tremendously proud to call Professor Aho a U of T Engineering alumnus.”

It’s the second time in three years that a member of the U of T community has won the prestigious A. M. Turing Award. In 2019, University Professor Emeritus Geoffrey Hinton and two of his colleagues received the award for their pioneering work in artificial intelligence.

 

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