See Deep learning
http://ronan.collobert.com/
https://scholar.google.co.uk/citations?user=_WnkXlkAAAAJ&hl=en
Geoffrey Hinton https://www.youtube.com/watch?v=GJdWESd543Y
http://www.iro.umontreal.ca/~bengioy/yoshua_en/research.html
Yann LeCun
http://people.idsia.ch/~juergen/
https://www.quora.com/Who-is-the-father-of-deep-learning
http://www.robots.ox.ac.uk/~karen/