Machine Learning, Neural Networks, NLP, Deep Learning.
https://en.wikipedia.org/wiki/Recursive_neural_network 7. http://www.meanotek.ru/files/TarasovDS(2)2015-Dialogue.pdf 8. https://www.aaai.org/ocs/index.php/AAAI/AAAI15/paper/view/9745/9552 9. https://wiki.inf.ed.ac.uk/twiki/pub/CSTR/ListenTerm1201415/sak2.pdf 10. https://arxiv.org/pdf/1510.06168.pdf