Development of an Intelligent Educational Chatbot Using NLP and Machine Learning
Keywords:
Educational chatbot, Natural Language Processing, Machine Learning, digital learning, artificial intelligenceAbstract
This study aims to develop an intelligent educational chatbot using Natural Language Processing (NLP) and Machine Learning (ML) to support independent student learning in English. As digital learning increasingly demands adaptive and responsive tools, chatbots offer the potential to provide real-time, personalized interactions. The chatbot in this research was designed with transformer-based NLP models and trained using supervised learning techniques. The development process followed the Borg & Gall Research and Development (R&D) model, including stages such as needs analysis, system design, prototyping, testing, and refinement. Through the integration of NLP and ML, the chatbot was expected to deliver natural dialogue, contextual understanding, and accurate educational feedback. Testing was conducted with 15 eleventh-grade high school students using pre- and post-tests. Results showed a significant improvement in learning outcomes, with average scores rising from 61.3 to 84.2. In addition to academic gains, students reported increased motivation, confidence, and comfort with self-directed learning. These findings confirm that the developed chatbot is effective not only in delivering knowledge but also in enhancing students' engagement and autonomy. The study concludes that the application of AI technologies, particularly NLP and ML, in education holds great potential as an inclusive, efficient, and scalable solution for the future of digital learning.
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