>**[Named entity recognition (NER)][1], also known as entity chunking/extraction, is a popular technique used in information extraction to identify and segment the named entities and classify or categorize them under various predefined classes.**

Briefly, how does NER work? What are the main ideas behind it? And which algorithms are used to perform NER? 


  [1]: https://www.kdnuggets.com/2018/08/named-entity-recognition-practitioners-guide-nlp-4.html