Entity recognition using CNN

I am working on a project that requires a good contextual Named entity recognition.

I was reading through this (https://arxiv.org/abs/1604.00734) paper and trying to implement it. But if somebody has already any insights into its performance, it would be great if you could share some insights.

A good illustrative example.
http://matthewfl.com/wp/wp-content/uploads/2016/08/naacl2016-conv-entity-link-poster.pdf