HeaRTDroid

HeaRTDroid is a rule-based inference engine both for Android mobile devices, and desktop solutions that is based on HeaRT inference engine. It is distributed under the GNU General Public License.
It can be downloaded from Bitbucket and Github, although the complete project history and issue tracker is available only on Bitbucket.
It was crafted for the purpose of mobile context-aware systems which have to operate in highly dynamic environments and handle uncertain or incomplete knowledge,
being at the same time efficient and understandable for the user.

Key features are:

• Visual knowledge base editor HWEd
• Inference support for XTT2 rule representation that is based on the Attributive Logic with Set Values and its textual representation called HMR+
• Pure Java implementation that allows for integration with any Java code, including Android applications
• Integration with AWARE framework in a form of HeaRTDroid Plug-In
• Callbacks mechanism based on Java reflection, that allows for easy integration with other systems
• Uncertainty management mechanism based on modified certainty factors algebra and probabilistic approach
• Capturing dynamics with statistical functions and time parametrised operators
• Different inference modes and real time reasoning triggers
• Interactive commandline shell HaQuNa