With the rapid advancement of Artificial Intelligence (AI), the Internet of Things (IoT), and ubiquitous sensing technologies, location intelligence has become a fundamental component of many emerging smart services and cyber-physical systems. Modern devices—including smartphones, wearables, robots, and IoT sensors—are increasingly equipped with GPS/GNSS, WiFi, Bluetooth, inertial sensors, and other sensing technologies that enable continuous understanding of people, devices, and their surrounding environments. At the Intelligent Service Integration (ISI) Lab, we conduct research on intelligent positioning, sensing, and location-based services by integrating AI, IoT, wireless communication, and sensor technologies. Our research spans indoor and outdoor localization, seamless positioning, context-aware sensing, and intelligent service platforms for real-world applications such as smart buildings, healthcare, industrial safety, robotics, and smart cities. Among various positioning technologies, we have extensively studied WiFi-based Real-Time Locating Systems (RTLS) because of their wide availability, scalability, and cost effectiveness. Through years of research and development, we created KAILOS, a WiFi-based indoor localization platform that leverages collective intelligence to construct and maintain indoor positioning information and provides location APIs for developing a wide range of location-based applications. We have also developed and deployed WiFi-based indoor navigation technologies in large-scale real-world environments. One of our systems was publicly released through the myCoex application and demonstrated practical indoor navigation services over a large commercial exhibition complex. Building on this foundation, ISI Lab is expanding its research toward AI-powered positioning and IoT-enabled intelligent systems, combining wireless signals, multimodal sensors, edge intelligence, and data-driven models to create scalable and reliable location-aware services for the next generation of connected environments.
Building on the positioning techniques, systems, and platforms developed at ISI Lab, we continue to advance intelligent localization and location-aware services by integrating AI, IoT, wireless communication, and multimodal sensing. Our research focuses on developing reliable, robust, and scalable positioning technologies that can operate seamlessly across diverse indoor and outdoor environments. Current and future research directions include AI-powered indoor and outdoor positioning, seamless indoor–outdoor localization and navigation, multimodal sensor fusion, WiFi- and IoT-based Real-Time Locating Systems (RTLS), edge intelligence for resource-constrained devices, and large-scale spatial data and radio-map construction. We are also exploring context-aware and location-aware services for smart buildings, healthcare, industrial safety, robotics, smart cities, and other connected environments. Ultimately, our goal is to develop intelligent positioning technologies and scalable service platforms that enable devices, people, and autonomous systems to understand and interact with their physical environments more accurately, efficiently, and intelligently.
ISI Lab is developing advanced techniques for WiFi-based indoor localization and navigation and inventing services on smartphones using location information. Based on our experiences and ideas we have published many papers, acquired dozens of patents, and released several products to the public via journals, conferences, and mass media. The following is the list of news web sites and video clips introducing our research activities and results.