Thursday 27 March 2025
Scientists have made a significant breakthrough in developing a chatbot that can understand and respond to users in a more personalized way, thanks to the integration of large language models (LLMs) and human activity recognition (HAR).
The system, designed for smart homes and assisted living environments, uses LLMs to generate context-aware prompts based on a user’s daily activities, location, and time. This allows the chatbot to provide more relevant and timely responses, making it easier for users to get the information they need.
To achieve this, the researchers used HAR to track a user’s movements and identify their activities throughout the day. They then combined this data with indoor localization technology, such as UWB tags, to pinpoint the user’s location in real-time. This information is fed into the LLM, which uses it to generate prompts that are tailored to the user’s specific context.
For example, if a user enters the kitchen and begins cooking, the chatbot might ask them about their favorite recipe or offer suggestions for new dishes to try. If the user is feeling tired in the evening, the chatbot might suggest relaxation techniques or calming music to help them unwind.
The researchers tested the system with real-world data from a smart home environment and found that it was able to generate highly relevant and personalized responses. The results show that this approach can significantly improve the user experience, making it easier for people to get the information they need and stay engaged with their surroundings.
One of the key benefits of this system is its ability to adapt to changing circumstances. For example, if a user’s daily routine changes due to an illness or injury, the chatbot can adjust its prompts accordingly. This makes it a valuable tool for people who may have difficulty adapting to new situations, such as older adults or those with disabilities.
The system also has potential applications in healthcare and social care, where it could be used to provide support and companionship to individuals who are isolated or lonely. By offering personalized responses and engaging conversations, the chatbot can help alleviate feelings of loneliness and isolation, promoting a sense of connection and community.
Overall, this research demonstrates the power of combining HAR and LLMs to create more intelligent and responsive chatbots. As technology continues to evolve, it’s likely that we’ll see even more innovative applications of this approach in various fields, from healthcare to education and beyond.
Cite this article: “Personalized Chatbot Technology for Smart Homes and Assisted Living Environments”, The Science Archive, 2025.
Chatbots, Language Models, Human Activity Recognition, Smart Homes, Assisted Living, Personalized Responses, Location Tracking, Indoor Localization, User Experience, Healthcare.







