<p>Talking about Java, <a href="http://nlp.stanford.edu/software/CRF-NER.shtml" rel="nofollow">Stanford NER</a> seems to be the best ceteris paribus.
There is also <a href="http://alias-i.com/lingpipe/demos/tutorial/ne/read-me.html" rel="nofollow">LingPipe</a>, <a href="http://cogcomp.cs.illinois.edu/page/software_view/4" rel="nofollow">Illinois</a> and others, take a look at <a href="http://aclweb.org/aclwiki/index.php?title=Named_entity_recognizers" rel="nofollow">ACL list</a>.</p>

<p>Also consider <a href="http://arxiv.org/ftp/arxiv/papers/1308/1308.0661.pdf" rel="nofollow">this paper</a> for experimental comparison of several NERCs.</p>
NER Tools for academic use
<p>I have some research project which needs best NER results .
Can anyone please help me with the best NER tools which have a Python library.</p>