Natural
Language
Processing

What is NLP ?
Natural Language Processing is
the ability of a computer
program to understand human
language as it is spoken.

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❏ NLP is the way for computers to analyze, understand and derive meaning from
human language in smart and useful way.
❏ Machine can understand how human speaks.
❏ Automatic text summarization, sentiment analysis, topic extraction, question
answering system, etc.

Few NLP Examples
● Cortana
● Siri
● Google Assistant
● Summarizer

Components
Of NLP
● Natural Language
Understanding
● Natural Language
Generation

NLU
● Lexical Ambiguity
● Syntactical Ambiguity
● Referential Ambiguity

Referential Ambiguity
MEERA went to GEETA and said ‘I am hungry’

NLG
● Text Planning
● Sentence Planning
● Text Realization

Disclosure Integration
Syntactic Analysis
Semantic Analysis
Lexical Analysis
Pragmatic Analysis
Steps Involved
In NLP

Lexical Analysis
● Divides paragraphs into sentences, phrases and words.

Syntactical Analysis
● Parsing of sentences - noun, verbs, adjectives etc.

Semantic Analysis
● Actual meaning of sentence
● E.g. ‘Bitter Sugar’

Disclosure Integration
● Context is checked
● Pervious history of the chat

Pragmatic Analysis
● Verify the correctness of meaning in the given context

Thank You!