A demo using convolution neural network to determine a drawing's emotion.
http://www.enteractive.space/alice
Here is gallery of drawings that Alice learned and all the drawing that people drew or drawing right now!
There are over 304564 drawings (counted on Feb 23, 2020).
http://www.enteractive.space/alice-gallery/
Google also featured this at Chrome Experiments.
https://www.chromeexperiments.com/experiment/alice
Javascript, Python, Theano, ConvnetJS, NodeJS, AngularJS, MongoDB