In this study, a brain network was created using graph theoretical analysis based on electroencephalography (EEG) data. The purpose of the study was to investigate the functional connectivity of the brain in different st ... more
In recent years, research on data science that automates the analysis of various data has been conducted. Although it is crucial to collect enough data to obtain valuable data analysis results, various issues that arise ... more
Our purpose is to extract a target signal with binaural microphones in an environment where multiple speech sources exist. A previous system has been established to separate the observed signals and identify which segreg ... more
In this paper, consecutive meals planning is formulated as a multiset iteration permutation problem that determines the optimal meals plan on a period consisting of consecutive days. In this problem, a meal is characteri ... more
Traceability management service utilizing blockchain guarantees the tamper resistance of data. However, it is a problem to balance the performance of writing to blockchain and the data confidence of other company’s infor ... more
A Method to Understand the Intention of Taste Expressions from Word-of-Mouth Data of Cooking Recipe Sites using Text Mining
論文No: ページ数: 10 日付: 2021/10/01
著者: 立花 伸一（筑波大学大学院），原田 智彦（筑波大学情報科学と社会科学の融合リサーチグループ），津田 和彦（筑波大学大学院）
キーワード : テキストマイニング，味覚表現，レシピ口コミサイト，BERT，LIME，共起分析 text mining，taste expression，word-of-mouth data of cooking recipe sites，BERT，LIME，co-occurrence analysis
The purpose of this study is to propose a quantitative evaluation method for clarifying intentions toward taste expressions that cannot be clarified, from word-of-mouth data of cooking recipe websites using text mining.T ... more
We investigated wireless communication with 920 MHz and 2.45 GHz bands around the human body to ensure the user’s mobility in a head-mounted display system. The electric field distribution and path loss characteristics w ... more
Smart Parts (SP) proposed in this study is a novel hardware tool for electrical circuit experiments at primary, middle and high schools. SP can be "transformed" into any electrical part, instrument, or DC/AC power supply ... more
Physical Effects of Motion Sickness for Comfortable VR Viewing
論文No: ページ数: 8 日付: 2021/09/01
著者: 小野 蓮太郎（福井大学大学院工学研究科知能システム工学専攻），松浦 康之（岐阜市立女子短期大学国際文化学科），中根 滉稀（福井大学大学院工学研究科知能システム工学専攻），高田 宗樹（福井大学大学院工学研究科知能システム工学専攻）
キーワード : 立体映像，映像酔い，重心動揺 3D video clips，VIMS，body sway
In accordance with developments in the image technology over recent years, it has become easier to watch 3D video clips. As the viewing of 3D video has become more commonplace, symptoms such as visually induced motion si ... more
Adjacent Defects Detection using a Sparse Modeling of Ultrasonic Testing System
論文No: ページ数: 8 日付: 2021/09/01
著者: 福本 慎一郎（和歌山大学大学院システム工学研究科），村田 頼信（和歌山大学システム工学部）
キーワード : スパースモデリング，デコンボリューション，交互方向乗数法，開口合成 sparse modeling，deconvolution，alternating direction method of multipliers，aperture synthesis
When the distance between internal defects is short during ultrasonic flaw detection, each reflected wave may be observed as a composite wave in the observed waveform. In this paper, we confirmed that it is possible to s ... more
In this study, the creation of pseudo-haptics during swimming in a virtual reality (VR) space was examined. For this purpose, the user can swim in the VR space, to visualize spheres floating around them in the water. The ... more
Learning disentangled representations of emotions and identities from facial images is important for understanding human faces. This is because the human face consists of emotions and identities, and the emotions affect ... more
In this study, a large amount of pseudo images for pre-training is created to achieve high accuracy even with the limited amount of ground truths in nighttime traffic sign detection. First, a large amount of pseudo image ... more
OPGW (OPtical fiber composite overhead Ground Wire), which is used as communication lines for electric power companies, freezes and causes communication faults in winter season because of rainwater immersion into aluminu ... more
A Fast and Accurate Tube Diameter Visualization Method for Digestive System Medical Images
論文No: ページ数: 10 日付: 2021/09/01
著者: Mitsuru Ueda (Graduate School of Computer Science and Systems Engineering, Okayama Prefectural University), Masafumi Kondo (Faculty of Health Science and Technology, Kawasaki University of Medical Welfare), Isao Kayano (Faculty of Health Science and Techn
キーワード : image processing，automated diameter measurement，dynamic centerline detection，color mapping
Although the tube diameter and stenosis rate are important observations in the diagnosis using medical images of digestive organ, such as digestive systems, the diagnosis is based on the physician's subjective evaluation ... more
In this research, we aim to extract features of menstrual cycle and mood using features of electroencephalogram (EEG). The menstrual cycle is classified into four categories: luteal phase, menstrual phase, follicular pha ... more
This paper gives a data-driven PID gain update method based on model matching with a reference model using closed-loop step reference data obtained from a poorly-tuned closed-loop system. The proposed method has the foll ... more
This paper focuses on a CSMA/CA based consensus problem in which multiple agents are autonomously controlled based on the information received only from the neighbor agents. To boost the control performance, wireless com ... more
A collision force suppression system for a human friendly robot, which consists of two arms, a trunk, a waist, an omnidirectional mobile base, is proposed. In this paper, the proposed passive collision force suppression ... more
The H.264/AVC standard has better coding efficiency comparing with former video coding standards. However, it still includes temporal artifacts, known as intra flicker.In this paper, we propose intra flicker reduction me ... more
An RGB-D image has extra information, i.e., depth information, which represents the distance between the camera and the objects. We extend a PEE-HS (prediction-error expansion with histogram shifting) based reversible da ... more
In order to automatically analyze human motion data, it is important to extract basic actions such as “stand up” and “walking”. The most conventional methods are several issues: (1) they need labeled data, (2) they only ... more
In this study, we propose deep learning model that not only has a high accuracy, but also a small distance between training and prediction labels for unknown data in the neighbor of the training data. We define a knowled ... more
Mixed Lumped and Distributed Type Dual Frequency Transformer Using Lumped Capacitors and Short Stubs
論文No: ページ数: 2 日付: 2021/09/01
著者: 丹野 友佑（東北学院大学工学部），大場 佳文（東北学院大学工学部），呉 国紅（東北学院大学工学部）
キーワード : 短絡スタブ，集中分布混在型，2周波変成器 short stubs，mixed lumped and distributed type，dual frequency transformer
This letter describes a mixed lumped and distributed type dual frequency transformer using lumped capacitors and short stubs. Characteristic impedances of short stubs can be decided arbitrarily. Also, the proposed circui ... more
In this letter, a Particle Swarm Optimization with fitness considering distance information is proposed. The proposed Particle Swarm Optimization is expected to obtain more multiple local optimal solutions than Firefly A ... more
IEEJ Transactions on Electronics, Information and Systems Vol.141 No.9 (2021) Special Issue on “Perception Information Technology Contributed to Intelligent Mechatronics Field”
論文No: ページ数: 124 日付: 2021/09/01
著者:
キーワード :
・快適・安全なVR視聴に向けたHMD映像の身体影響に関する研究：小野 蓮太郎，松浦 康之，中根 滉稀，高田 宗樹・超音波探傷におけるスパースモデリングを用いた隣接欠陥の検出：福本 慎一郎，村田 頼信・仮想現実環境 ... more
Measurement of Complex Permittivity normal to Substrates for Medium-loss Materials Using a PTFE Loaded Balanced-type Circular Disk Resonator at Microwave and Millimeter Wave Frequencies
The complex permittivity normal to substrates can be measured by the balanced-type circular disk resonator method at microwave and millimeter wave frequencies. However, in the case of substrates for medium-loss materials ... more
Malignant neoplasms (Cancers) are accounts for 30% of the total deaths in Japan. And the number of the death due to the lung cancer is the most both men and women. It is being removed by video assisted thoracic surgery n ... more
An 8 Gbps high-speed relay MMIC for an Automated Test Equipment (ATE) using a gallium nitride is developed and evaluated. Metal-Insulator-Semiconductor structure with a tantalum oxynitride is employed to reduce a leakage ... more
