###description: a python crawler to download SCI paper. It store key words in a list , search these words in turn automatically , and then download them.
###feature:
- log current status, and breakpoint recovery
- filter downloaded papers using bloom filter
- fault tolerant as much as I can (there must be many other detail to take care)
- persistence to mysql
###related tools: selenium, PhantomJS (perfect combination)
###related python modules: urllib[2], pybloomfilter, cPickle, logging, MySQLdb, urlparse