• Clinical Endoscopy
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• v.56 no.2
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• pp.258-260
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• 2023

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.2
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• pp.462-470
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• 2011

ARS (Automatic Response Systems) based on VUI (Voice User Interface) and TTI (Touch Tone Interface) are one of the most widely used communication systems. Despite common usages, however, inconvenience of ARS is continually pointed out. This may stem from lack of human-centered studies aside from technological development. In this paper, we provide guidelines for designing ARS by analyzing hindrance factors of usability of ARS menu structure. We had selected two call-centers using ARS, and carried out an experimental study where subjects performed the task of "returning books." After that, they completed questionnaires and interviews. We identified four problems: the complex menu structure, lack of representativeness on the menu name, users' awareness of location, and a difficulty to move among menus. And we partially discussed the ways of avoiding the problems.

• Advances in concrete construction
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• v.1 no.2
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• pp.187-200
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• 2013

The damage level in structures (global scale), elements (intermediate scale) and sections (local scale) can be evaluated using a single parameter called the "Damage Index". Part of the damage attributed to the local scale relates to the damage sustained by the materials of which the section is made. This study investigates the damage of concrete subjected to monotonic compressive loading using four different damage models - one proposed here for the first time and three other well-known models. The analytical results show that the proposed model is promising yet simple and effective for evaluating the damage of concrete. The proposed damage model of concrete with its promising characteristics indicated, appears to be a useful tool in the damage assessment of structures made of concrete.

• Earthquakes and Structures
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• v.15 no.3
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• pp.307-317
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• 2018

The current study explores the soil-structure interaction (SSI) effect on the potential seismic damage of mid-rise non-seismically designed reinforced concrete frames retrofitted by Fibre Reinforced Polymer (FRP). An 8-storey reinforced concrete frame poorly-confined due to transverse reinforcement deficiency is selected and then retrofitted by FRP wraps to provide external confinement. The poorly-confined and FRP retrofitted frames with/without SSI are modelled using hysteretic nonlinear elements. Inelastic time history and damage analyses are performed for these frames subjected to different seismic intensities. The results show that the FRP confinement significantly reduces one or two damage levels for the poorly-confined frame. More importantly, the SSI effect is found to increase the potential seismic damage of the retrofitted frame, reducing the effectiveness of FRP retrofitting. This finding, which is contrary to the conventionally beneficial concept of SSI governing for decades in structural and earthquake engineering, is worth taking into account in designing and evaluating retrofitted structures.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.478-483
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• 2007

본 연구는 가전제품 사용자 인터페이스에서 음성 신호와 청각 신호의 최적 할당 방법을 기술하였다. 가정에서 수시로 접하는 가전제품에서 음성 유저 인터페이스(Voice User Interface, 이하 VUI) 는 음성을 매개로 일어나는 인간과 기계 간 인터페이스를 뜻한다. 음성 유저 인터페이스의 단독적 적용보다는 소리 신호와 함께 사용하여 사용자들의 인터페이스를 향상시킬 수 있다. 본 연구에서는 주부 사용자들을 대상으로 F.G.I, 실험, Depth Interview 를 수행하여 가전제품의 음성 생성 및 표현 인터페이스에서 음성과 소리 신호의 배치에 대한 사용자들의 니즈 조사 및 실험 결과를 기반으로 최적의 할당 방법을 제시하였다.

• Journal of the Korean Institute of Intelligent Systems
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• v.14 no.6
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• pp.771-775
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• 2004

The present Web surroundings is mostly composed of HTML(Hypertext Mark-up Language) and thereby users obtain web informations mainly in GUI(Graphical User Interface) environment by clicking mouse in order to keep up with hyperlinked informations. However it is very inconvenient to work in this environment comparing with easily accessed one in which human`s voice is utilized for obtaining informations. Using VoiceXML, resulted from XML, for supplying the information through telephone on the basis of the contemporary matured technology of voice recognition/synthesis to work out the inconvenience problem, this paper presents the research results about VoiceXML VUI(Voice User Interface) Browser designed and implemented for realizing its technology and also the VoiceXML Dialog designed for the purpose of the browser's efficient use.

• Proceedings of The KACE
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• 2018.01a
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• pp.93-95
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• 2018

음성인식 기술이 인공지능의 핵심 연구 분야로 떠오르면서 음성인식 기술은 인공지능(AI)과 결합하여 음성비서, 자율 주행차, 실시간 음성검색, 음성 통역 등 다양한 분야에서 활용될 것으로 기대되고 있다. 문자가 아닌 음성으로 검색하는 새로운 검색 시장이 확대되면서 '음성이용자인터페이스(VUI: Voice User Interface)' 인 음성비서 서비스 기능을 가진 인공지능(AI) 스피커 시장 경쟁이 시간이 갈수록 가열되고 있다. 이에 인공지능 스피커의 등장배경부터 현재 국내외 음성인식 기기 소개 그리고 앞으로의 교육의 방향에 맞는 음성인식 기기의 교육적 활용 방안에 대해서 알아보고자 한다.

• Journal of Internet of Things and Convergence
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• v.1 no.1
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• pp.5-9
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• 2015

In this paper, we proposed a design of interactive augmented reality coloring book. The proposed method improves user's participation and interest by using real space, augmented reality space, and virtual reality space all together. According to the proposed method, we implemented the PlayingHouse, an interactive augmented reality coloring book. In the future, we expect that AR coloring book could be the category of the library.

• Kyungpook Mathematical Journal
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• v.62 no.4
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• pp.699-713
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• 2022

This paper proposes a hybrid successive over-relaxation iterative method for the numerical solution of a nonlinear diffusion in a one-dimensional porous medium. The considered mathematical model is discretized using a computational complexity reduction scheme called half-sweep finite differences. The local truncation error and the analysis of the stability of the scheme are discussed. The proposed iterative method, which uses explicit group technique and modified successive over-relaxation, is formulated systematically. This method improves the efficiency of obtaining the solution in terms of total iterations and program elapsed time. The accuracy of the proposed method, which is measured using the magnitude of absolute errors, is promising. Numerical convergence tests of the proposed method are also provided. Some numerical experiments are delivered using initial-boundary value problems to show the superiority of the proposed method against some existing numerical methods.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.138-141
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• 2009

모바일 명함 관리 시스템은 간편하게 모바일 기기를 이용하여 명함을 등록하고 검색할 수 있으나 모바일 기기의 특징상 화면이 작고 정보를 이용하기 위해서는 펜을 이용하여 검색어를 입력해야하는 불편함이 있다. 이를 해결하기 위해 명령을 음성으로 처리하고자하는 VUI(Voice User Interface)의 필요성이 증가하였다. 또한 모바일 기기의 메모리 공간상의 제약으로 인한 음성인식엔진 탑재의 어려움이 있다. 이에 본 논문에서는 모바일 단말기로부터 음성을 입력받아 인식결과를 모바일 단말기로 되돌려 주는 음성인식 시스템을 구축하고 본 인식시스템과 모바일 클라이언트 시스템을 분산처리 가능한 웹서비스 환경으로 구성하였다.