Dabbala Rajagopal “Raj” Reddy is a computer scientist and the Moza Bint Nasser University Professor at Carnegie Mellon University, where he has spent most of his career working on human-computer interaction and artificial intelligence. His research spans spoken-language systems, robotics, large digital libraries, and distance learning. He was one of the first researchers to build continuous, large-vocabulary speech-recognition systems, and his lab trained a generation of leaders in the field.
Reddy shared the 1994 ACM Turing Award with Edward Feigenbaum for their pioneering work on the design and construction of large-scale artificial intelligence systems, demonstrating the practical importance and potential commercial impact of AI technology. His speech systems, such as Hearsay and Harpy, showed how a machine could turn ordinary spoken language into structured commands, and his robotics work helped establish the field of autonomous systems.
The library’s reader meets Reddy most directly through the AI-winter story. His 1988 presidential address to the Association for the Advancement of Artificial Intelligence is cited in the entries on AI’s funding busts: speaking from the inside as the field’s leading society, he took stock of inflated promises and hard limits at exactly the moment optimism was turning to retreat. He is a useful reminder that some of the soberest assessments of AI’s overreach came from its own founders, not its critics.