CALO was an artificial intelligence project that attempted to integrate numerous AI technologies into a cognitive assistant.
The CALO effort has had many major spin-offs, most notably the Siri intelligent software assistant that is now part of the Apple iOS since iOS 5, delivered in several phones and tablets; Social Kinetics, a social application that learned personalized intervention and treatment strategies for chronic disease patients, sold to RedBrick Health; the Trapit project, which is a web scraper and news aggregator that makes intelligent selections of web content based on user preferences; Tempo AI, a smart calendar; Desti, a personalized travel guide; and Kuato Studios, a game development startup.
CALO was funded by the Defense Advanced Research Projects Agency (DARPA) under its Personalized Assistant that Learns (PAL) program.
SRI International made a collection of successful machine learning and reasoning technologies developed in the PAL program, primarily from the CALO project, available online.
[citation needed] In the first four years of the project, CALO-funded research has resulted in more than five hundred publications across all fields of artificial intelligence.