SVM分類時間序列問題可以藉助DTW算法進行核函數映射替換
已有研究現狀：
http://members.cbio.mines-paristech.fr/~jvert/talks/070608telecom/telecom.pdf
http://www.ism.ac.jp/ cuturi/articles/alignment2006arx
https://notendur.hi.is/steinng/ijcnn08.pdf
https://papers.nips.cc/paper/2131-dynamic-time-alignment-kernel-in-support-vector-machine.pdf
http://www.gatsby.ucl.ac.uk/~szabo/publications/jeni14spatio.pdf
http://sergioescalera.com/wp-content/uploads/2016/02/wacv2016.pdf
https://vtechworks.lib.vt.edu/bitstream/handle/10919/52556/Caceres_CA_T_2014.pdf?sequence=1
https://link.springer.com/chapter/10.1007/978-3-319-34111-8_1
http://ieeexplore.ieee.org/document/5325814/
代碼實現較爲簡單，把DTW.java 實現修改適配到libsvm中的svm.java kernel_function 中即可， 同時需要注意修改判別函數decision_function 中的k_function.