地图开发者，专注于地图渲染、空间数据索引，对数据挖掘、自然语言处理、机器学习和并行计算有着浓厚的兴趣。
OpenStreetMap地图贡献者。热爱开源。
I think open data and open source are going to change everything.
LinkedIn:
https://www.linkedin.com/in/hanchao0123
Github:
https://github.com/hanchao
微博:
http://weibo.com/u/1076929083
OpenStreetMap:
http://www.openstreetmap.org/user/hanchao