Design and Implementation of an AI-Based Chatbot Using NLP and Machine Learning Techniques

  • Unique Paper ID: 191341
  • PageNo: 8909-8915
  • Abstract:
  • This research presents the design and implementation of an AI-based chatbot system that integrates Natural Language Processing (NLP) and Machine Learning (ML) techniques to deliver automated, accurate, and context-aware conversational support. The study addresses critical limitations in traditional rule-based chatbots, such as poor scalability, limited linguistic understanding, and inability to handle complex or unpredictable user queries. The proposed hybrid system utilizes preprocessing, intent classification, entity extraction, and a structured knowledge base to generate coherent and relevant responses. A modular architecture supported by a Flask backend and a web-based user interface ensures smooth communication between system components. Machine learning algorithms, including Logistic Regression and SVM, improve the accuracy of intent detection, while spaCy-based Named Entity Recognition enhances contextual comprehension. The chatbot supports real-time interaction, achieving faster response generation, reduced human effort, and improved user satisfaction. The results demonstrate that hybrid approaches combining retrieval-based and generative elements significantly enhance response quality, reliability, and adaptability. This work highlights the potential of AI-driven conversational agents to automate routine tasks and provide 24/7 support across various domains.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{191341,
        author = {Pratiksha Badrinath Chindhe and Nikhil Ashruba Chavan and Santosh Vilas Adhe and Jyoti Dinkar Bhosale},
        title = {Design and Implementation of an AI-Based Chatbot Using NLP and Machine Learning Techniques},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {8},
        pages = {8909-8915},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=191341},
        abstract = {This research presents the design and implementation of an AI-based chatbot system that integrates Natural Language Processing (NLP) and Machine Learning (ML) techniques to deliver automated, accurate, and context-aware conversational support. The study addresses critical limitations in traditional rule-based chatbots, such as poor scalability, limited linguistic understanding, and inability to handle complex or unpredictable user queries. The proposed hybrid system utilizes preprocessing, intent classification, entity extraction, and a structured knowledge base to generate coherent and relevant responses. A modular architecture supported by a Flask backend and a web-based user interface ensures smooth communication between system components. Machine learning algorithms, including Logistic Regression and SVM, improve the accuracy of intent detection, while spaCy-based Named Entity Recognition enhances contextual comprehension. The chatbot supports real-time interaction, achieving faster response generation, reduced human effort, and improved user satisfaction. The results demonstrate that hybrid approaches combining retrieval-based and generative elements significantly enhance response quality, reliability, and adaptability. This work highlights the potential of AI-driven conversational agents to automate routine tasks and provide 24/7 support across various domains.},
        keywords = {AI Chatbot, NLP, Machine Learning, Hybrid Model, Intent Classification, Knowledge Base},
        month = {February},
        }

Cite This Article

  • ISSN: 2349-6002
  • Volume: 12
  • Issue: 8
  • PageNo: 8909-8915

Design and Implementation of an AI-Based Chatbot Using NLP and Machine Learning Techniques

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