Wikipedia: Machine learning
Vishal Maini, "Machine Learning for Humans", Medium, 19 August 2017
Samuel, A. L. "Some Studies in Machine Learning Using the Game of Checkers." IBM Journal of Research and Development 3 (July 1959): 210-229.
Mannila, H. "Data mining: machine learning, statistics, and databases." Proceedings of 8th International Conference on Scientific and Statistical Data Base Management. IEEE Comput. Soc. Press, 1996, 2-9.
Wernick, Miles, Yongyi Yang, Jovan Brankov, Grigori Yourganov, and Stephen Strother. "Machine Learning in Medical Imaging." IEEE Signal Processing Magazine 27 (July 2010): 25-38.
Langley, Pat. "The changing science of machine learning." Machine Learning 82 (March 2011): 275-279.
Simon, Herbert A. "Why Should Machines Learn?" Machine Learning. Ed. Ryszard S Michalski, Jaime G Carbonell, and Tom M Mitchell. Symbolic Computation. Springer Berlin Heidelberg, 1983. 25-37.
Steven Levy, "How Google is Remaking Itself as a “Machine Learning First” Company", Wired, 22 June 2016.
Alex Hern, "Google says machine learning is the future. So I tried it myself", The Guardian, 28 June 2016.
Wikipedia: Artificial neural network