AI-Based Chatbot System for Automated Customer Support Using NLP and Machine Learning

Authors

Yashkumar Desai

School of Computer Science and Applications REVA University Bangalore (India)

Prof. Lakshmi JVN

School of Computer Science and Applications REVA University Bangalore (India)

Article Information

DOI: 10.51244/IJRSI.2026.1304000241

Subject Category: Artificial Intelligence

Volume/Issue: 13/4 | Page No: 2814-2823

Publication Timeline

Submitted: 2026-04-22

Accepted: 2026-04-28

Published: 2026-05-19

Abstract

This study presents an intelligent chatbot system developed to automate customer support services in digital platforms. As user expectations for instant responses continue to grow, traditional support mechanisms face limitations in scalability and availability. The proposed system combines Natural Language Processing and Machine Learning techniques to interpret user queries and generate meaningful responses. A DistilBERT-based model is applied for intent detection, while a Named Entity Recognition module identifies relevant information within user input. The system was trained using conversational datasets and tested through multiple evaluation measures. The results demonstrate strong performance in terms of accuracy and response efficiency, significantly improving over manual support approaches. These findings suggest that the proposed chatbot can be effectively deployed in real-world customer service environments.

Keywords

Artificial Intelligence, Chatbot, Natural Language Processing

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References

1. Salesforce, "State of the Connected Customer," 5th Edition, Salesforce Research, 2022. [Google Scholar] [Crossref]

2. J. Weizenbaum, "ELIZA—A Computer Program for the Study of Natural Language Communication Between Man and Machine," Communications of the ACM, vol. 9, no. 1, pp. 36–45, 1966. [Google Scholar] [Crossref]

3. A. Vaswani et al., "Attention Is All You Need," in Proc. NeurIPS, 2017, pp. 5998–6008. [Google Scholar] [Crossref]

4. S. Russell and P. Norvig, Artificial Intelligence: A Modern Approach, 4th ed. Pearson, 2021. [Google Scholar] [Crossref]

5. H. Xu et al., "End-to-End Learning of Task-Oriented Dialogs," in Proc. NAACL Workshop on Interactive AI, 2018. [Google Scholar] [Crossref]

6. T. Young, D. Hazarika, S. Poria, and E. Cambria, "Recent Trends in Deep Learning Based NLP," IEEE Computational Intelligence Magazine, vol. 13, no. 3, pp. 55–75, 2018. [Google Scholar] [Crossref]

7. D. Jurafsky and J. H. Martin, Speech and Language Processing, 3rd ed. (draft). Stanford University, 2023. [Google Scholar] [Crossref]

8. J. Devlin, M. Chang, K. Lee, and K. Toutanova, "BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding," in Proc. NAACL-HLT, 2019, pp. 4171–4186. [Google Scholar] [Crossref]

9. V. Sanh, L. Debut, J. Chaumond, and T. Wolf, "DistilBERT, a Distilled Version of BERT: Smaller, Faster, Cheaper and Lighter," arXiv:1910.01108, 2019. [Google Scholar] [Crossref]

10. OpenAI, "GPT-4 Technical Report," arXiv:2303.08774, 2023. [Google Scholar] [Crossref]

11. T. Wolf et al., "Transformers: State-of-the-Art Natural Language Processing," in Proc. EMNLP (Systems Demonstrations), 2020, pp. 38–45. [Google Scholar] [Crossref]

12. M. E. Peters et al., "Deep Contextualized Word Representations," in Proc. NAACL-HLT, 2018, pp. 2227–2237. [Google Scholar] [Crossref]

13. N. Honnibal and I. Montani, "spaCy 2: Natural Language Understanding with Bloom Embeddings, Convolutional Neural Networks and Incremental Parsing," unpublished, 2017. [Online]. Available: https://spacy.io [Google Scholar] [Crossref]

14. S. Hochreiter and J. Schmidhuber, "Long Short-Term Memory," Neural Computation, vol. 9, no. 8, pp. 1735–1780, 1997. [Google Scholar] [Crossref]

15. N. V. Chawla, K. W. Bowyer, L. O. Hall, and W. P. Kegelmeyer, "SMOTE: Synthetic Minority Over-sampling Technique," Journal of Artificial Intelligence Research, vol. 16, pp. 321–357, 2002. [Google Scholar] [Crossref]

16. I. Loshchilov and F. Hutter, "Decoupled Weight Decay Regularization," in Proc. ICLR, 2019. [Google Scholar] [Crossref]

17. E. Loper and S. Bird, "NLTK: The Natural Language Toolkit," in Proc. ACL Workshop on Effective Tools and Methodologies for Teaching NLP and CL, 2002, pp. 63–70. [Google Scholar] [Crossref]

18. G. Lample, M. Ballesteros, S. Subramanian, K. Kawakami, and C. Dyer, "Neural Architectures for Named Entity Recognition," in Proc. NAACL-HLT, 2016, pp. 260–270. [Google Scholar] [Crossref]

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