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2. Chih-Wei Hsu, Chih-Chung Chang, and Chih-Jen Lin,A Practical Guide to Support Vector Classication, https://www.csie.ntu.edu.tw/~cjlin/libsvm/
3. 岡谷貴之,深層学習、講談社 (2015)
4. OpenCV Tutorials (3.1.0-dev) http://docs.opencv.org/trunk/d9/df8/tutorial_root.html