SMILE: Structural Modeling, Inference, and Learning Engine Manual .

"SMILE and XMILE: a common language and interchange format for system dynamics" .

Developed by BayesFusion , it uses XML-based formats (like XDSL) to store and share structural models. The C++ libraries and headers are freely distributed for research and non-commercial use. How to Download Related "SMILE" Files

If you are looking for a pre-trained "smile" detection file for computer vision (OpenCV), you can download the haarcascade_smile.xml directly from Adobe's SimpleSensor GitHub .

For "Smile" branded PowerPoint or visual templates, sites like SmileTemplates offer free downloads in various formats.

This is a reasoning engine for graphical probabilistic models (like Bayesian networks).