The online courses for AI learning

Machine learning in coursera from Stanford University (Andrew Ng)
Machine learning foundation from Taiwan University (林軒田)
Machine Learning and having it Deep and Structured from Taiwan University (李宏毅)
機器如何聽懂人說話 (李宏毅) itHome - Tech Talk
Tsing-Hua business analytics course

AI papers

Paper search -- Arxiv
Paper search -- Academia.edu
Paper search -- Sci-Hub or sci-Hub.bz or sci-Hub.ac

Speech Recognition and Natural Language Processing

CMU Sphinx - OPEN SOURCE SPEECH RECOGNITION TOOLKIT
Julius: Open-Source Large Vocabulary Continuous Speech Recognition Engine