Jin Nakazawa

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We explore the design patterns and architectural tradeoffs for achieving interoperability across communication middleware platforms, and describe uMiddle, a bridging framework for universal interoperability that enables seamless device interaction over diverse platforms. The proliferation of middleware platforms that cater to specific devices has created(More)
This paper presents a new architecture for integrating networked appliances, called virtual network appliance (VNA). Instead of merely connecting appliances seen in existing approaches, the VNA architecture enables users to create a networked appliance by assembling functional components of existing appliances. Users can achieve dynamic adaptation and(More)
This paper proposes a service model based on the service hierarchical structure called Galaxy service model, and a service discovery framework called Galaxy service directory system. In a ubiquitous computing environment, software services are embedded into various devices. The application construction requires service discovery mechanism and a recursive(More)
We propose a new service modeling and lookup method based on service shaping. In existing service frameworks, assembling ubiquitous services requires application programmers to translate their requirements to the type space defined by service programmers. This translation, however, disables some of user requirements due to abstraction gap and time gap(More)
In today's ubiquitous computing environment where the number of devices, applications and web services are ever increasing, human attention is the new bottleneck in computing. To minimize user cognitive load, we propose Attelia, a novel middleware that identifies breakpoints in user interaction and delivers notifications at these moments. Attelia works in(More)
In today's ubiquitous computing environment where users carry, manipulate, and interact with an increasing number of networked devices, applications and web services, human attention is the new bottleneck in computing. It is therefore important to minimize a user's mental effort due to notifications, especially in situations where users are mobile and using(More)
This paper proposes FRAGWRAP which maps scent to real objects in real-time. To achieve this purpose, we leverage fragrance-encapsulated soap bubble with projection mapping technique. Since human olfaction is known as combined utilization of his/her eyes and nose, we encapsulate fragrance into bubble soap to stimulate the nose and also project 3D image of(More)
As the amount of information to users increases with the trends of an increasing numbers of devices, applications, and web services, the new bottleneck in computing is human attention. To minimize users attentional overload, we propose a novel middleware ‘‘Attelia’’ that detects breakpoints of user’s mobile interactions to deliver notifications adaptively.(More)
We developed Smart Furniture, which extemporaneously converts the legacy non-smart space into a Smart Hot-spot which consists of computational services. Since the Smart Furniture is equipped with networked computers, sensors and various I/O devices, it can provide various services by alone or by coordinating with other devices. In this paper, the physical(More)
We propose a system for improving the answer rate to ESM inquiry to reduce the user's mental burden by detecting breakpoints in user's physical activity and pushing notifications in such timings. We conducted an in-the-wild user study with 30 participants for 4-days. The results revealed the effectiveness of breakpoint-based notification delivery. In the(More)