NATURAL LANGUAGE PROCESSING
Natural Language Processing (NLP) refers to AI method of communicating with an intelligent
systems using a natural language such as English.
Processing of Natural Language is required when you want an intelligent system like robot to
perform as per your instructions, when you want to hear decision from a dialogue based clinical
expert system, etc.
The field of NLP involves making computers to perform useful tasks with the natural languages
humans use. The input and output of an NLP system can be −
Components of NLP
There are two components of NLP as given −
Natural Language Understanding (NLU)
Understanding involves the following tasks −
Mapping the given input in natural language into useful representations.
Analyzing different aspects of the language.
Natural Language Generation (NLG)
It is the process of producing meaningful phrases and sentences in the form of natural language
from some internal representation.
It involves −
Text planning − It includes retrieving the relevant content from knowledge base.
Sentence planning − It includes choosing required words, forming meaningful phrases,
setting tone of the sentence.
Text Realization − It is mapping sentence plan into sentence structure.
The NLU is harder than NLG.
Difficulties in NLU