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The number of small stores, such as convenience stores, is increasing, and their electric power consumption is also increasing. Disaggregation technology, which identifies the statuses of devices by measuring one current at the circuit breaker board, is a preferred solution to save energy. In this research, we propose an EMS with the disaggregation technology that can estimate electric power consumption...
An automatic frequency tuning loop (ATL) for the low pass filter is fabricated in TSMC 0.18-μm CMOS technology for 400–800 MHz Spectrum Sensing. The whole ATL system employs a divide-by-four, a low pass filter, a phase-frequency-detector (PFD), charge pump (CP), a comparator and a successive approximations register (SAR) to calibrate the low pass filter of 400–800 MHz spectrum sensing system. The...
On an e-commerce site, users can easily search for a desired product by inputting the name and/or the model number of the product into a web browser. However, they fail to find it if the query is inputted incorrectly or an ambiguous term is used. We have proposed a mixed-reality web shopping system with panoramic images photographed at the aisles of a real store. In this system, the user can move...
Since 2011, we have developed and deployed a standalone Voice-Interactive Digital Signage System to provide useful university information to users at the Nagoya Institute of Technology. This system comprises MMDAgent, a software toolkit to realize voice interaction with 3-D character named "Mei". An important shortcoming is that this system's ability is limited because it lacks a network...
This paper proposes an efficient implementation of Breadth First Search (BFS) for General Video Game Playing (GVGP). This method is specialized for deterministic games, which often cannot be solved by a single action and require a more extensive search to solve. Most existing AI programs cannot search the game space efficiently, and thus perform poorly in deterministic games. To improve the efficiency...
This paper describes an application of Monte-Carlo Tree Search (MCTS) in a fighting game AI. MCTS is a best-first search technique that uses stochastic simulations. In this paper, we evaluate its effectiveness on FightingICE, a game AI competition platform at Computational Intelligence and Games Conferences. Our results confirm that MCTS is an effective search for controlling a game AI in the aforementioned...
Even today "beeps" are mostly used in consumer electronics (CE) as user interface (UI) sounds. Though this has not changed for at least 10 years, we think UI sounds could be designed more useful and fascinated. This time we investigated what kinds of sound are used on recent CE UIs, and how users use and what they think of these sounds. As a result, users mostly understand the message when...
The conventional positioning methods adopt a linear approximation to estimate the rover position. Moreover, they have not considered a mean value of a residual ranging error caused by measurement of the satellite signals. In this paper, we proposed a new exact point positioning method by considering the mean value of the residual ranging error for GNSS (Global Navigation Satellite Systems) systems...
In order to obtain road information, we propose a road information acquisition method using scanning range finder by detecting 2D reflector code on roadside. The scanning range finder on vehicle scans the 2D reflector code on roadside. Through some experiments, we show that the proposed method is able to obtain road information by detecting 2D reflector code on roadside.
We are developing a next-generation editable electronic textbook (e-textbook) education system called Gakuzai. In the Gakuzai system, an e-textbook is provided to teachers and students. In an e-textbook, users can remove (electronically hide) the unimportant parts of long descriptions, leaving only the important parts. This system will enable teachers to prepare documentation for their classes in...
Recently, wristwatch-type wearable devices are developed and geographic information services have become widely available on them. In this paper, we propose a comprehensive deformed map generation algorithm for wristwatch-type wearable devices. Our algorithm first normalizes a pedestrian route to 0°, 45°, or 90° so that the pedestrian can see the route not tilting the wristwatch-type wearable device...
FFT is a crucial and necessary design entity lor any current communication applications, especially for OFDM systems. As compared with conventional design approach, which can support only one-radix processing kernel of single-path delay feedback (SDF) FFT, we propose a reconfigurable processing kernel design for multiple-radix types of SDF FFT. In implementation, this kernel hardware engine is reconfigurable...
In this paper, we proposed a new concept of tour, named interest-based tour, and based on this new concept, we have developed a tour planning tool. The interest-based tour is literally a tour to visit places related to a given interest. Interest argued in this paper is not limited to only point such as things and places. We extend the concept of interest to line (e.g. a famous person's history) and...
We develop a navigation system considering traffic accident risk. After putting the start and goal points by a user, the system suggests a detour; a better route contains low risk against traffic accidents. Users can also contribute to register risk values to the dangerous points. We define cost functions to generate reasonable and safer route paths within the given geometrical area. The system was...
A record of food intake contains information that is useful for health care. We propose a new method for obtaining food intake data using intra-body communication. In this system, a transmitter is attached to each dish, and signals are sent to a receiver via dishes, food, and cutlery; the human body is the medium connecting the transmitter and the receiver. A receiver can detect the moment when the...
In the early years of college, students have the need to learn how to program in any programming language. It is important to see the differences between programming languages and their rules. We are proposing an interactive and self-study system for students to acquire the knowledge they need, from data structures to algorithms using multiple programming languages. The system gives the students some...
Trace anonymity is an extension of the formulation of anonymity by Schneider and Sidiropoulos. To prove the trace anonymity of infinite-state or unbounded systems, we have introduced proof techniques in which we find a binary relation called an anonymous simulation. There are two sorts of anonymous simulation methods — a forward-style method and a backward-style method. In our previous work, we discussed...
In a multi-view application, view synthesis is required to synthesize unavailable views using texture and depth information of the given views. In this paper, a compensation algorithm based on template matching for partial recovery of disocclusion regions is proposed. The shape of a template is dynamically adjusted, and a new reference mode which mimics pushing dominoes is also proposed. To find an...
To assist Java programming educations, we have developed a Web-based Java Programming Learning Assistant System (JPLAS). JPLAS provides fill-in-blank problems to let students study Java grammar and basic programming skills by filling the blanked elements in a given Java code. To generate the feasible problems, we have proposed a blank element selection algorithm using the constraint graph to select...
For advancing the educational quality of Java programming, we have proposed and implemented the Java Programming Learning Assistant System (JPLAS) as a Web application system. JPLAS offers fill-in-blank problems that request students to fill in the blank elements in a given Java code to study Java grammar and basic programming skills. In past years, we have utilized fill-in-blank problems at our Java...
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