


Its speech recognition engine was provided by Nuance Communications, and it uses advanced machine learning technologies to function. Siri is a spin-off from a project developed by the SRI International Artificial Intelligence Center. With continued use, it adapts to users' individual language usages, searches and preferences, returning individualized results. It uses voice queries, gesture based control, focus-tracking and a natural-language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of Internet services. Siri ( / ˈ s iː r i, ˈ s ɪ r i/ SEE-ree, SI-ree) is a virtual assistant that is part of Apple Inc.'s iOS, iPadOS, watchOS, macOS, tvOS, and audioOS operating systems.
