This proceedings book presents edited results of the eighth International Conference on Fuzzy Information and Engineering (ICFIE'2015) and on Oriental Thinking and Fuzzy Logic, in August 17-20, 2015, in Dalian, China. The book contains 65 high-quality papers and is divided into six main parts: "e;Fuzzy Information Processing"e;, "e;Fuzzy Engineering"e;, "e;Internet and Big Data Applications"e;, "e;Factor Space and Factorial Neural Networks"e;, "e;Information Granulation and Granular Computing"e; as well as "e;Extenics and Innovation Methods"e;.