Sirius: An Open-Source Alternative To Apple's Siri & Google Now

Sirius is an open-source, end-to-end Intelligent Personal Assistant (IPA) service. Sirius is able to recognize speech or imagery and return the results in natural language.

Sirius is an alternative to Apple Siri or Google Now, though it doesn't appear to be quite as advanced. Sirius depends on Java 1.7, OpenCV, Kaldi, Protobuf, and Sphinx. There's automatic speed recognition, image matching, a question-answering system, and all of these components are able to work together to provide an end-to-end solution.

The Sirius code was initially developed at the University of Michigan and is open-source via GitHub. More details on Sirius can be found at Clarity-Lab.org.