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http://piags.github.io/technics/2090/12/09/machine-learning-index
http://piags.github.io/technics/2017/03/19/regex-pearls
http://piags.github.io/machine%20learning/2017/03/12/machine-learning-normalization
http://piags.github.io/java/2017/03/12/java-collections-sort
http://piags.github.io/java/2017/02/05/learn-crf
http://piags.github.io/java/2017/02/04/java-pearls
http://piags.github.io/job/2017/01/17/dxx-job
http://piags.github.io/chatbot/2016/12/20/chatbot-reading-list
http://piags.github.io/chatbot/2016/12/20/chatbot-learning-note
http://piags.github.io/nlp/2016/12/19/penn-treebank-pos-tags
http://piags.github.io/linux/2015/10/15/learn-shell
http://piags.github.io/python/2015/10/14/python-value-reference
http://piags.github.io/python/2015/10/12/python-if-name-main
http://piags.github.io/computer/2015/10/12/ascii
http://piags.github.io/webx/2015/10/11/webx-control
http://piags.github.io/shell/2015/10/11/usr-bin-env
http://piags.github.io/python/2015/10/11/learn-python
http://piags.github.io/2015/10/10/http-connection
http://piags.github.io/computer/2015/10/09/blog-set-up
http://piags.github.io/todo/2013/06/04/to-do