Faculty Profiles - YONEZAWA Takuro

Papers - YONEZAWA Takuro

Division display 281 - 300 of about 307 ／ All the affair displays >>

ARAKI Takayoshi, YONEZAWA Takuro, NAKAZAWA Jin, TAKASHIO Kazuki, TOKUDA Hideyuki

IEICE technical report Vol. 109 ( 338 ) page： 13 - 18 2009.12

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：一般社団法人電子情報通信学会

The advancement of information technology provides customers various ways to purchase products, and large number of customers are buying products online rather than buying them at brick-and-motor stores. In spite of that, customers are stimulated to purchase products at brick-and-motor stores through the use of QR code and digital cash. It is said that customers will be more encouraged to buy products at brick-and-motor stores by adapting new technologies, such as RFID and electronic device. In consequence, firing clerks and less jobs being required are resulting in less communication between customers and clerks. Communication between customers and clerks increases the chance of customers purchasing products, and enables customers to the choose most desired products. Thus, in order to improve the convenience of brick-and-motor stores, it is important to encourage clerks to have communication with customers. Although, there is a proper timing to wait on a customer, and there is a great chance of making customers feel uncomfortable as a result of wrong timing or way of service. In order to solve this problem, we aim to assist customers and brick-and-motor stores by detecting customers' "indecision" when purchasing products.

CiNii Research

FASH: Detecting tiredness of elders Reviewed

Yonekawa K., Yonezawa T., Nakazawa J., Tokuda H.

Inss2009 6th International Conference on Networked Sensing Systems 2009.12

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Inss2009 6th International Conference on Networked Sensing Systems

This paper proposes Fatigue Alerting SHoes(FASH), a pair of shoes which prevents walking elders from falling accidents. Fatigue is one of the causes of elders encountering falling accidents, thus, FASH detects fatigue of walking people. FASH embeds pressure sensor in shoes to detects tiredness of walking people, and prevent falling accidents by alerting them. ©2009 IEEE.

DOI： 10.1109/INSS.2009.5409908

Scopus

Fatigue Alerting SHoes

YONEKAWA Kenji, YONEZAWA Takuro, YURA Jun'ichi, NAKAZAWA Jin, TAKASHIO Kazuki, TOKUDA Hideyuki

全国大会講演論文集 / 情報処理学会 [編] Vol. 71 ( 3 ) page： "3 - 301"-"3-302" 2009.3

MIDEIN : MIddleware for DEtecting INdecision Reviewed Open Access

ARAKI Takayoshi, YONEZAWA Takuro, NAKAZAWA Jin, TAKASHIO Kazuki, TOKUDA Hideyuki

Vol. 71 ( 0 ) page： 303-304 2009.3

Fatigue Alerting SHoes

米川賢治, 米澤拓郎, 由良淳一, 中澤仁, 高汐一紀, 徳田英幸

全国大会講演論文集 Vol. 71 ( 0 ) page： 301 - 302 2009.3

SYNTHETIC STUDIES OF MANGOSTIN DERIVATIVES WITH AN INHIBITORY ACTIVITY ON PDGF-INDUCED HUMAN AORTIC SMOOTH CELLS PROLIFERATION Reviewed Open Access

Nishihama, Y; Ogamino, T; Shi, WL; Cha, BY; Yonezawa, T; Teruya, T; Nagai, K; Suenaga, K; Woo, JT; Nishiyama, S

HETEROCYCLES Vol. 77 ( 2 ) page： 759 - 765 2009.2

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Heterocycles

The mangostin derivatives 310, were synthesized by halogenation, electrochemical oxidation, and mCPBA oxidation of α- and γ-mangostins (1, 2). Among them, the hydroxyl 9 and the benzopyran 10 derivatives produced by mCPBA, showed remarkable antiproliferative activities against human aortic smooth muscle cells (HASMC) induced by platelet-derived growth factor (PDGF). © 2009 The Japan Institute of Heterocyclic Chemistry All rights reserved.

DOI： 10.3987/COM-08-S(F)65

Open Access

Web of Science

Scopus

SOEML: Smart object events modeling language based on temporal intervals Reviewed

Takuro Yonezawa, Jin Nakazawa, Goro Kunito, Tomohiro Nagata, Hideyuki Tokuda

International Journal of Multimedia and Ubiquitous Engineering Vol. 4 ( 3 ) page： 73 - 92 2009

FASH: Detecting tiredness of walking people using pressure sensors Reviewed

Kenji Yonekawa, Takuro Yonezawa, Jin Nakazawa, Hideyuki Tokuda

2009 6th Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services, MobiQuitous 2009 page： 1 - 6 2009

Language：English Publishing type：Research paper (international conference proceedings) Publisher：ICST / IEEE

The number of elders who encounter falling accidents has been increasing in the past few decades. Falling accidents could cause major injuries, such as having bruise, breaking bone, and in the worst case, losing life. Therefore, preventing elders from falling accidents is important in order to ensure the quality of life. In this paper, we propose Fatigue Alerting SHoes (FASH), a pair of shoes which detects the fatigue of walking people. There are three effects of fatigue on gait, and FASH system acquires all of them to improve the accuracy of fatigue detection. FASH system uses pressure sensors embedded in a pair of shoes to detect the tiredness, and notifies the user of "Tiredness Scale," a scale we defined in order to show the degree of tiredness. Through the evaluation, we affirmed the availability of using pressure sensor to detect accumulation of tiredness. We also confirmed the difference between the physical tiredness and the subjective feeling toward tiredness, which signifies the importance of acknowledging the user of his/her fatigue.

DOI： 10.4108/ICST.MOBIQUITOUS2009.6894

Scopus

Ubiquitous Services Using Sensor Networks : Making Objects Smart and Visualization of Environment(<Special Issue>Sensing Network: Application Edition) Open Access

TOKUDA Hideyuki, YONEZAWA Takuro, ITO Masaki

Journal of the Japanese Society for Artificial Intelligence Vol. 23 ( 4 ) page： 447 - 452 2008.7

An Event Desciption Language Using Temporal Relation for Smart Object Services Reviewed

YONEZAWA T., Nakazawa Jin, Sakakibara Hiroshi, Kunito Goro, Nagata Tomohiro, Tokuda Hideyuki

IPSJ Technical Reports Vol. 2008 ( 18 ) page： 75-82 2008.2

Language：Japanese Publishing type：Research paper (scientific journal)

This paper proposes event description language using temporal relation for creating various services with smart objects. By attaching sensor nodes to everyday objects, users can augment the objects digitally and take the objects into various services. When creating such smart object services, users should define event using physical value from sensors. The most common event is defined by simply describing threshold of sensor value and logical operation. Therefore, when end-users want to define more complex event, they need to use hard programming language such as C or Java. For defining such complex event easily without complex programming language, we propose a new event description language based on temporal relation between simple events.

CiNii Research

An Event Desciption Language Using Temporal Relation for Smart Object Services Reviewed

YONEZAWA Takuro, NAKAZAWA Jin, SAKAKIBARA Hiroshi, KUNITO Goro, NAGATA Tomohiro, TOKUDA Hideyuki

IPSJ SIG technical reports Vol. 2008 ( 18 ) page： 75-82 2008.2

Language：Japanese Publishing type：Research paper (scientific journal)

CiNii Research

Area-Based Activity Information Preservation Mechanism for Ubiquitous Sensor Environment Reviewed

Hiroshi Sakakibara, Takuro Yonezawa, Jin Nakazawa, Hideyuki Tokuda

INSS 2008: PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON NETWORKED SENSING SYSTEMS page： 119 - 122 2008

Language：English Publishing type：Research paper (international conference proceedings) Publisher：IEEE

Recent years have seen active development of context-aware applications and systems that helps the development. However, it suffers from increasing fears for leakages of users' activity information to other users unconsciously, since the owner of the activity information included in the sensor data is not treated in context-aware systems. We propose the Area-Based Activity Information Preservation (ABAIP) system that enables users to control the level of data resolution of their activity information to allow applications to use. Degrading sensor data resolution causes coarse grained context recognition. The system prevents unconscious and unnecessary activity information leakage amongst the ABAIP system users, while providing ubiquitous sensor environment for various kinds of ubiquitous software.

Web of Science

Markit : Designing and Inplementation of Digital Sclapping System

KAWAZOE Mizuki, YONEZAWA Takuro, TAKASHIO Kazunori, TOKUDA Hideyuki

情報処理学会研究報告ユビキタスコンピューティングシステム（UBI） Vol. 2007 ( 118 ) page： 105 - 112 2007.11

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：一般社団法人情報処理学会

Spread of information technology has changed the form of information scrapping from only paper media to digital media. However, to scrap information from paper media to digital media is still burden task for users; they must capture information digitally by camera or OCR, and organize information manually. This research focuses to reduce the cost for scrapping physical media as digital media. For this purpose, we propose Markit-scrapping system using marking interaction. Users can capture physical information of their interest digitally only by marking them with sticky. We evaluate the usefulness of Markit interaction through usability test.

CiNii Research

momo!: Mood Modeling and Visualization based on Vital Information

YAMAMOTO Jumpei, TOKUDA Yoshiyuki, KAWAZOE Mizuki, YONEZAWA Takuro, TAKASHIO Kazunori, TOKUDA Hideyuki

UBI Vol. 2007 ( 118 ) page： 79 - 86 2007.11

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：一般社団法人情報処理学会

Many context analyses have been done in recent years with the high-end sensor equipment. Also, some research work on extracting "atmosphere", which is the feeling that an event or place gives you. However, every atmosphere produced is depended on one's feeling or the mood that they are in, and it is difficult to analyze it in a public space with an existing research. In this research, we try to demonstrate these atmospheres visible with the "momo!" system, by using vital sensors to analyze the mood. The research goal is to apply various services with the technology of atmosphere extraction.

CiNii Research

Self-organizable panel for assembling DIY ubiquitous computing Reviewed

Naohiko Kohtake, Ryo Ohsawa, Takuro Yonezawa, Masayuki Iwai, Kazunori Takashio, Hideyuki Tokuda

PERSONAL AND UBIQUITOUS COMPUTING Vol. 11 ( 7 ) page： 591 - 606 2007.10

Language：English Publishing type：Research paper (scientific journal) Publisher：SPRINGER LONDON LTD

This paper proposes the concept of DIY (do-it-yourself) ubiquitous computing, an architecture allowing non-experts to establish ubiquitous computing environments in the real world. This concept has been implemented in the "u-Texture", which is a self-organizable panel that works as a building block. While the traditional scheme attaches devices such as computers, sensors, and network equipments externally to make everyday objects smart, the u-Texture has these devices built in beforehand to assemble smart objects. The u-Texture can change its own behavior autonomously through recognition of its location, its angle of inclination, and surrounding environment by assembling these factors physically. This paper describes the design, the implementation, and various applications of u-Textures to confirm that the concept can contribute to establishment of ubiquitous computing environments in the real world without expert users.

DOI： 10.1007/s00779-006-0118-z

Web of Science

Scopus

Spot & Snap: An Interaction for Associating Sensor Nodes and Everyday Objects to Realize DIY Smart Object Services Open Access

YONEZAWA TAKURO, SAKAKIBARA HIROSHI, NAKAZAWA JIN, TAKASHIO KAZUNORI, TOKUDA HIDEYUKI

IPSJ journal Vol. 48 ( 3 ) page： 1381 - 1392 2007.3

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：一般社団法人情報処理学会

This paper introduces the concent of DIY (do-it-yourself) Smart Objects Services that enables non-expert users to apply smart object services for everyday life. When using smart object services, a semantic connection between sensor node and domestic objects must be made before services function properly. At home, however, professional assistance with such installation may be either unavailable or too costly. Spot & Snap solves this problem by easing of such association with use of a USB camera and an LED spotlight. With Spot & Snap, nonexpert users can register their belongings to preferred services without experts by taking their pictures. It also provides application framework to create various smart object services. This paper describes the prototype implementation of Spot & Snap and a range of its applications. In addition, it evaluates Spot & Snap through capability and usability experiments.

Open Access

CiNii Research

Collaboration Scheme Based on Blockable Appliances for Ubiquitous Environment Reviewed Open Access

KOHTAKE NAOHIKO, OHSAWA RYO, YONEZAWA TAKURO, TAKASHIO KAZUNORI, TOKUDA HIDEYUKI

IPSJ journal Vol. 48 ( 3 ) page： 1405-1416 2007.3

Language：Japanese Publishing type：Research paper (scientific journal)

With diffusion of ubiquitous computing environments, it is essential that non-expert users can create ubiquitous computing environment by themselves. Compared with computer users who are mainly engineers or experts, ubiquitous computing users are varied and a friendly user interface is desired. This paper proposes collaboration scheme based on blockable appliances for ubiquitous computing environment. This collaboration scheme has been implemented in the u-Texture II, which is a self-organizable panel that works as a building block. The u-Texture II can change its own behavior through recognition of its location, its inclination, and surrounding environment by assembling these factors physically. This paper describes the design, the implementation, and various applications of u-Texture II to confirm that the collaboration scheme can contribute to establishment of ubiquitous computing environments without expert users.

Open Access

CiNii Research

A Technique for Associating Everyday Objects and Sensor Nodes Reviewed

YONEZAWA Takuro, SAKAKIBARA Hiroshi, NAKAZAWA Jin, NAGATA Tomohiro, TAKASHIO Kazunori, TOKUDA Hideyuki

IPSJ SIG technical reports Vol. 2007 ( 14 ) page： 179-186 2007.2

Language：Japanese Publishing type：Research paper (scientific journal)

This paper introduces Spot & Snap interaction technique that enables end-users to associate sensor nodes to everyday-life objects easily. By attaching sensor nodes to everyday-life objects, are what we call smart objects, users can augment the objects digitally. When using smart object services, a semantic connection between sensor node and objects must be made before services function properly. At home, however, professional assistance with such installation may be either unavailable or too costly. Spot & Snap solves this problem by easing of such association with use of a USE camera and an LED spotlight. With Spot & Snap, non-expert users can register their belongings to preferred services without experts by taking their pictures. It also provides application framework to create various smart object services. This paper describes the prototype implementation of Spot & Snap and a range of its applications. In addition, it evaluates Spot & Snap through capability and usability experiments.

CiNii Research

A Technique for Associating Everyday Objects and Sensor Nodes Reviewed

Yonezawa Takuro, Sakakibara Hiroshi, Nakazawa Jin, Nagata Tomohiro, Takashio Kazunori, Tokuda Hideyuki

Vol. 2007 ( 14 ) page： 179-186 2007.2

Language：Japanese Publishing type：Research paper (scientific journal)

CiNii Research

uPackage - A package to enable do-it-yourself style ubiquitous services with daily objects Reviewed

Yonezawa Takuro, Sakakibara Hiroshi, Koizumi Kengo, Miyajima Shingo, Nakazawa Jin, Takashio Kazunori, Tokuda Hideyuki

UBIQUITOUS COMPUTING SYSTEMS, PROCEEDINGS Vol. 4836 page： 240-+ 2007

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Papers - YONEZAWA Takuro