The sound of the tube amp due to the harmonic distortion has been thought to depend not only on the vacuum tube type but also on the vacuum tube manufacturer and individual differences. However, quantitative differences ... more
This paper presents input bias current (Ibias) reduction technique for high impedance CMOS op-amps with the proposed current compensation circuit to deal with the leakage current caused by Electro-Static Discharge (ESD) ... more
In recent years, interest in IoT (Internet of Things) has been increasing, and energy harvesting has attracted attention. However, the power and voltage that can be harvested are very small. Therefore, a power supply cir ... more
An exponentiation conversion circuit, which can be changed its power exponent to any value to compensate nonlinearity in electronic devices, is proposed. In the proposed circuit, new exponential conversion circuit conver ... more
In this paper, an auto-zero amplifier which reduces the offset voltage and output voltage ripple caused by the non-ideal characteristics of CMOS switches is proposed. Three capacitors are used to store the compensation v ... more
In this paper, a third-order complex RiCR filter using small number of grounded imaginary resistors is proposed. The proposed complex RiCR filter can be obtained by adopting the lowpass-highpass transformation and an equ ... more
Three-Dimensional Data Compression and Fast High-Quality Reconstruction for Phased Array Weather Radar
論文No: ページ数: 9 日付: 2020/01/01
著者: Ryosuke Kawami (Graduate School of Information Science and Engineering, Ritsumeikan University), Daichi Kitahara (Graduate School of Information Science and Engineering, Ritsumeikan University), Akira Hirabayashi (Graduate School of Information Science an
キーワード : Phased array weather radar，data compression，compressed sensing，convex optimization，Nesterov's acceleration
This paper proposes a fast high-quality three-dimensional (3D) compressed sensing for a phased array weather radar (PAWR), which is capable of spatially and temporally high-resolution observation of the atmosphere. Becau ... more
It is an important task to accurately track the target tumor with respiratory movement during radiation therapy. X-ray imaging technique is capable of observing the internal organ motion. However, superimposed tissues an ... more
In this paper, we show the effectiveness to use not only canny edge images but also hand contour images for hand pattern recognition by convolutional neural network (CNN). Hand contour images are binary images with only ... more
Block-Based Neural Network Optimization with Manageable Problem Space
論文No: ページ数: 7 日付: 2020/01/01
著者: Kundo Lee (Mentor Graphics Japan Co., Ltd./Yokohama National University), Tomoki Hamagami (Yokohama National University)
キーワード : FPGA，evolvable hardware，genetic algorithm，block-based neural network
In this paper, a simple method based on Genetic Algorithm (GA) is proposed to evolve Block-Based Neural Network (BbNN) model. A BbNN consists of a 2-D array of memory-based modular component NNs with flexible structures ... more
This paper extended PMRL as the non-communicative and theoretical method for two agents, and proposed PLA as the method to be able to force agents to learn cooperative behavior for any number of agents. In addition, this ... more
Product price generally tends to decline as time proceeds. However, in Electronic commerce business (hereafter called “EC”), it sometimes increases influenced by supply and demand conditions; therefore, it is difficult t ... more
Recommender system is an information-filtering tool used in solving the problem that the user's preference in information overload. In recent years, with the development of deep learning, more and more research has begun ... more
Development of Recommendation System of Place of Employment for Students with Decision Rules in Rough Set using the Condition Relaxation based on User’s Aptitude
Conditional search system in employment supporting website is well used in Japan, if college or university students search place of employment. However, this system is not possible to respond flexibly to user’s undefined ... more
In the development of the IoT systems, because it is necessary to test in various combinations, it takes much cost and time to execute tests for each combination and to analyze failures. In this paper, we have proposed a ... more
Electric Circuit Model and Thermo-Hue Hemodynamic Analysis for Non-Contact Blood Pressure Measurement
論文No: ページ数: 2 日付: 2020/01/01
著者: Yu Kato (Graduate School of Science and Engineering, Aoyama Gakuin University), Kent Nagumo (Graduate School of Science and Engineering, Aoyama Gakuin University), Shizuka Bando (NISSAN MOTOR CO., LTD.), Kosuke Oiwa (Graduate School of Science and Enginee
キーワード : blood pressure，CEOF analysis，electric circuit model，facial thermal image，facial visible image
Hypertension is a main factor of lifestyle diseases, and monitoring daily blood pressure (BP) could help prevent these diseases. To monitor BP daily, non-contact methods have been developed, but these methods are difficu ... more
Although internet of things (IoT) technology is widely used in various fields, IoT has several issues; energy efficiency and authentication for security. The energy harvesting technology, which harvests various energy (e ... more
Lightweight block ciphers, which can be implemented with low cost, are suitable for improving the safety of small devices. PRINCE is a typical lightweight block cipher and suitable for unrolled architecture implementatio ... more
We have proposed a localization method of an autonomous mobile robot using multiple sensor information in order to realize robust localization. This method is based on Particle Filter, and bias probability distributions ... more
The hazard perception test is one of the safety education methods aiming at the improvement of driver's attention. We have constructed a real image-type driving simulator which can extract the gaze information of the dri ... more
For understanding the contents of a user's utterances, dialogue acts classification is often introduced to chat systems. This paper proposes Enhanced One-versus-All RNN (ENOVA RNN), which is a dialogue act classification ... more
Spot Allocation Design in the National High School Rugby Tournament based on Quantitative Strength Evaluation Method
論文No: ページ数: 5 日付: 2019/12/01
著者: 平岩 星哉（名城大学理工学部情報工学科），小中 英嗣（名城大学理工学部情報工学科）
キーワード : 高校スポーツ，定量的実力評価，枠割当問題 highschool sports，quantitative strength evaluation method，spot allocation problem
This paper discusses spot allocation in the national high school rugby tournament based on a quantitative strength evaluation method. In the national high school rugby tournament in Japan, each prefecture receives one sp ... more
In this paper, we propose an evaluation function for the fifteen puzzle using a neural network learning random trials of moves of the puzzle. Using the IDA* algorithm with the evaluation function, we were able to solve p ... more
Bullying is very serious problem in Japan. To solve bullying problem as an engineering problem, our research group added some special agents into the agent-based model of bullying and verified what behavioral characteris ... more
In this study, the relationship between TBL (Team-Based Learning) performance and learning motivation was investigated. Accordingly, TBL experimental classes were conducted in university information literacy. The results ... more
In this paper, we conducted a subjective experiment in order to investigate if the naturalness of vibrato of singing voice is affected by difference of vibrato waveform. In this subjective experiment, listeners judged th ... more
Noise Bias Compensation for Reconstructed HDR Images in Two Layer Coding
論文No: ページ数: 10 日付: 2019/12/01
著者: Sayaka Minewaki (Department of Computer Science and Engineering, National Institute of Technology, Yuge College), Fairoza Amira Binti Hamzah (The Kyoto College of Graduate Studies for Informatics), Taichi Yoshida (Department of Computer and Network Engine
キーワード : image denoising，HDR image，two-layer coding，tone mapping，bit depth
We propose a two-layer coding method for HDR images with noise bias compensation (NBC). Although the mean of image noise is assumed to be zero originally, it becomes nonzero (that is, noise bias is present) after tone ma ... more
A Multi-Point Cutaneous Tactile Device for Fingertip Haptics
論文No: ページ数: 9 日付: 2019/12/01
著者: Zhen Zhang (Graduate School of Engineering, Iwate University), Yoshihiro Hagihara (Faculty of Science and Engineering, Iwate University), Xin Lu (Faculty of Science and Engineering, Iwate University), Adiljan Yimit (Graduate School of Transdisciplinary Ar
キーワード : cutaneous haptic device，tactile module，shape-displaying，reproduction of contact force，interface
Fingertip haptic feedback devices reproduce the sensation of touching objects in a virtual or remote environment to the operator, but most existing devices were proposed through a specific purpose and treat the cutaneous ... more
Automatic sperm detection is in high demand for supporting Testicular Sperm Extraction (TESE). On the other hand, detection of sperms in samples of TESE is difficult because there are a lot of germ cells resembling sperm ... more
This paper proposes a design of decay rate controllers with guaranteed cost for Takagi-Sugeno fuzzy systems. A guaranteed cost control takes care of not only stabilization but also system performance. The controller desi ... more
