CBSE Class 11th AI (Artificial Intelligence) | 15. Natural Language Processing (NLP) by Abraham | Learn Smarter
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

15. Natural Language Processing (NLP)

Natural Language Processing (NLP) is a vital subfield of Artificial Intelligence that enables interaction between computers and humans using natural language. It consists of two primary components: Natural Language Understanding (NLU), which involves comprehending language, and Natural Language Generation (NLG), which converts data into human language. Despite its applications in areas like chatbots and sentiment analysis, NLP faces challenges such as ambiguity and sarcasm, necessitating the use of libraries like NLTK and spaCy to aid implementation.

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Sections

  • 15

    Natural Language Processing (Nlp)

    Natural Language Processing (NLP) is a critical AI subfield focused on enabling computers to understand and interact using human languages.

  • 15.1

    Basics Of Natural Language Processing

    Natural Language Processing (NLP) combines the understanding and generation of human languages by machines, enabling technology-driven applications.

  • 15.1.1

    Natural Language Understanding (Nlu)

    Natural Language Understanding (NLU) is a core component of NLP that focuses on understanding human language input through machines.

  • 15.1.2

    Natural Language Generation (Nlg)

    Natural Language Generation (NLG) is a crucial component of Natural Language Processing, focusing on transforming structured data into coherent human language outputs.

  • 15.2

    Steps In Nlp

    The steps in Natural Language Processing (NLP) involve preprocessing, feature extraction, and modeling to enable computers to understand and generate human languages.

  • 15.2.1

    Text Preprocessing

    Text Preprocessing involves preparing raw text data for analysis in Natural Language Processing.

  • 15.2.1.a

    Tokenization

    Tokenization is an essential NLP process that involves breaking text into smaller units called tokens.

  • 15.2.1.b

    Stop Word Removal

    Stop word removal is a crucial preprocessing step in NLP that removes commonly used words that do not significantly contribute to meaning.

  • 15.2.1.c

    Stemming And Lemmatization

    Stemming and lemmatization are techniques in natural language processing (NLP) that reduce words to their base or root form to enhance text analysis.

  • 15.2.2

    Feature Extraction

    Feature extraction transforms text data into numerical values for machine learning models.

  • 15.2.3

    Modelling

    The modelling step in Natural Language Processing (NLP) involves using algorithms to train models on processed data to perform various tasks such as text classification and sentiment analysis.

  • 15.3

    Applications Of Nlp

    This section outlines the various applications of Natural Language Processing (NLP) in different fields, emphasizing its practical uses in everyday technologies.

  • 15.3.1

    Chatbots And Virtual Assistants

    Chatbots and virtual assistants leverage NLP to comprehend user queries and provide intelligent responses.

  • 15.3.2

    Sentiment Analysis

    Sentiment analysis is a crucial application of NLP that identifies and categorizes emotional tone in text data, helping organizations gauge public opinion.

  • 15.3.3

    Language Translation

    Language translation is a key application of NLP that enables accurate translation of text between different languages.

  • 15.3.4

    Text Summarization

    Text summarization is an NLP application that extracts key information to condense a document into a digestible summary.

  • 15.3.5

    Speech Recognition And Generation

    This section discusses Speech Recognition and Generation as a significant application of Natural Language Processing (NLP), highlighting its functionalities and uses.

  • 15.4

    Challenges In Nlp

    NLP faces significant challenges like ambiguity, sarcasm detection, language diversity, and contextual understanding.

  • 15.4.1

    Ambiguity

    Ambiguity in language refers to words or phrases that have multiple meanings, making it a significant challenge in Natural Language Processing (NLP).

  • 15.4.2

    Sarcasm And Irony

    This section explores the challenges NLP faces in detecting sarcasm and irony in human language, emphasizing the need for contextual understanding.

  • 15.4.3

    Language Diversity And Slang

    This section discusses how NLP addresses language diversity and the complexities introduced by slang and colloquialisms in various languages.

  • 15.4.4

    Contextual Understanding

    This section discusses the challenges faced by Natural Language Processing (NLP) in understanding human language, focusing particularly on ambiguity, sarcasm, language diversity, and contextual nuances.

  • 15.5

    Popular Nlp Libraries And Tools

    This section discusses several widely used NLP libraries and tools that facilitate various natural language processing tasks.

  • 15.5.1

    Nltk (Natural Language Toolkit)

    NLTK is a powerful Python library for natural language processing (NLP) that facilitates text processing, classification, stemming, tagging, and parsing.

  • 15.5.2

    Spacy

    spaCy is a powerful and efficient NLP library designed for industrial use, offering tools for natural language processing tasks.

  • 15.5.3

    Textblob

    TextBlob is a simplified NLP library for beginners, making it easy to perform basic NLP tasks like sentiment analysis.

  • 15.5.4

    Transformers (By Hugging Face)

    Transformers is a powerful NLP library by Hugging Face that streamlines access to pre-trained models for various NLP applications.

  • 15.6

    Real-Life Case Studies / Examples

    This section discusses real-life applications of NLP focusing on customer support automation, resume screening, and legal document analysis.

  • 15.6.1

    Customer Support Automation

    The section discusses how NLP is employed in customer support automation to enhance service efficiency and resolve queries without human intervention.

  • 15.6.2

    Resume Screening

    Resume screening involves the use of NLP technology to automate the process of analyzing job applications and selecting suitable candidates.

  • 15.6.3

    Legal Document Analysis

    Legal document analysis in NLP refers to the use of natural language processing techniques to summarize, categorize, and extract critical data from legal texts.

  • 15.7

    Ethics And Bias In Nlp

    This section discusses the ethical considerations and biases that can arise in Natural Language Processing (NLP) models and offers mitigation strategies.

  • 15.7.1

    Data Bias

    Data bias in NLP refers to the potential for models to reflect and amplify biases present in training data, leading to ethical concerns and inaccuracies in AI applications.

  • 15.7.2

    Privacy Concerns

    Privacy concerns in NLP highlight the ethical and security challenges posed by processing personal data.

  • 15.7.3

    Misinformation

    This section discusses misinformation in natural language processing and the ethical implications tied to it.

  • 15.7.4

    Mitigation Strategies

    This section discusses strategies to mitigate ethical issues and biases in Natural Language Processing (NLP).

Class Notes

Memorization

What we have learnt

  • Natural Language Processing...
  • NLP consists of two compone...
  • The processing of natural l...

Final Test

Revision Tests