Design and Development of an Intelligent Web-Based Digital Human for Emotionally Aware Human–Computer Interaction

Abstract

The development of digital humans has become an important area of interest in artificial intelligence and human-computer interaction, aiming to create virtual entities that can simulate human communication, expressions, and intelligence in real time. This project, titled “Development of Digital Humans,” is centered on developing an intelligent, interactive system that engages users in human-like dialogue through web-based platforms. Unlike conventional chatbots or voice assistants, the proposed digital human integrates emotion modeling, memory retention, and contextual understanding to enhance the realism and responsiveness of interaction. The system is built using PHP, JavaScript, HTML, CSS, and SQL, and features a modular design architecture that incorporates natural language processing, real-time feedback mechanisms, and a lightweight database structure. This ensures compatibility with a wide range of devices, especially in low-resource environments. One of the core innovations is the inclusion of persistent memory, which allows the digital human to recall user-specific data over multiple sessions enabling personalized and continuous engagement. A mixed-method research approach was adopted, involving user surveys, expert interviews, and comparative analysis of existing platforms such as Apple Siri, Amazon Alexa, Google Assistant, and Samsung NEON. The study identified limitations in current systems, including lack of adaptability to local languages, minimal emotional intelligence, and high bandwidth demands. These findings shaped the design and implementation of the proposed system. Results from system testing revealed improved user satisfaction, reduced latency, and enhanced personalization features. The project offers a scalable framework for deploying digital humans in diverse sectors including virtual learning, online therapy, customer engagement, and digital companionship. It also lays the foundation for future research in ethical AI, multilingual communication, and intelligent virtual presence, contributing to a more human-centered digital future.