How are entity annotations helpful in NLP?

Entity annotations are helpful in providing information about the location of entities in a document, index positions, starting and ending positions of entities, etc. Such information can help us know how frequently entities occur in a particular document and we can make further analysis.

These are the following points that plays the major part into this

1. · Data
   
2. · NER
   
3. · Co- reference Resolver
   
4. · Event finder
   
5. · Tipple Producer Process
   
6. · DE duper
   
7. · Knowledge Base