SRI’s Artificial Intelligence Center executed one of the most significant artificial intelligence projects of the early 2000s: the Cognitive Assistant that Learns and Organizes, or CALO.
CALO was SRI’s component of the DARPA Personalized Assistant that Learns (PAL) program, a five-year, $150 million project that brought together more than 300 researchers from 22 premier research institutions. The goal was to build a new generation of cognitive assistants that could reason, learn from experience, execute commands, explain their actions, reflect on their experience, and respond robustly to surprise.
SRI leveraged this work on virtual personal assistants to create Siri, which spun out as an independent company in 2007. Apple acquired the company in 2010, and in 2011 Siri was unveiled as an integrated feature of the iPhone 4S, bringing voice assistants into the mainstream.
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