• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 1부
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• pp.669-673
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• 2008

지능형 협업환경에서 사용자가 원하는 서비스를 제공받기 위해 선행되어야 할 기술은 사용자가 원하는 협업기능 요구사항에 따라 협업환경 내 서비스들을 적절히 발견하는 서비스 발견(service discovery) 기술이다. 일반적인 서비스 발견과 관련하여, UPnP(universal plug & play) 의 SSDP(simple service discovery protocol)을 비롯한 여러 종류의 서비스 발견 기술이 존재하나, 지능형 협업환경이 요구하는 서비스 발견 특정을 만족시키기에는 일부 제약 사항이 존재한다. 이에 본 논문에서는 지능형 협업환경에서 제공되어야 하는 서비스 발견 기술의 요구사항을 살펴보고, 이를 만족하기 위한 방법으로써 다중 에이전트 시스템 (multi-agent system,, MAS)을 적용한 실용적인 서비스 발견 방법을 제시한다. 또한 지능형 협업환경의 일부 서비스에 제안된 방법을 적용하여, 본 접근방법의 타당성을 구현 결과를 통해 확인하고자 한다.

• 한국CDE학회논문집
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• 제12권2호
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• pp.126-136
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• 2007

Teleconferences have been used in business sectors to reduce traveling costs. Traditionally, specialized telephones that enabled multiparty conversations were used. With the introduction of high speed networks, we now have high definition videos that add more realism in the presence of counterparts who could be thousands of miles away. This paper presents a new technology that adds even more realism by telecommunicating with hand gestures. This technology is part of a teleconference system named SMS (Smart Meeting Space). In SMS, a person can use hand gestures to manipulate meeting data that could be in the form of text, audio, video or 3D shapes. Fer detecting hand gestures, a machine learning algorithm called SVM (Support Vector Machine) has been used. For the prototype system, a 3D interaction environment has been implemented with $OpenGL^{TM}$, where a 3D human skull model can be grasped and moved in 6-DOF during a remote conversation between distant persons.

• 통합자연과학논문집
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• 제12권4호
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• pp.105-115
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• 2019

In this paper, a prediction system is proposed to control the brightness of smart street lamps by predicting the moving path through the reduction of consumption power and information of pedestrian's past moving direction while meeting the function of existing smart street lamps. The brightness of smart street lamps is adjusted by utilizing the walk tracking vector and soft hand-off characteristics obtained through the motion sensing sensor of smart street lamps. In addition, the motion vector is used to analyze and predict the pedestrian path, and the GPU is used for high-speed computation. Pedestrians were detected using adaptive Gaussian mixing, weighted difference imaging, and motion vectors, and motions of pedestrians were analyzed using the extracted motion vectors. The preprocessing process using linear interpolation is performed to improve the performance of the proposed prediction system. Fuzzy prediction system and neural network prediction system are designed in parallel to improve efficiency and rough set is used for error correction.

• 한국인터넷방송통신학회논문지
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• 제14권5호
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• pp.255-261
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• 2014

IT산업의 발달은 현대사회에 큰 변화를 가져왔다. 그 변화는 모든 분야에 적용되어 생활을 점점 더 편리하게하고, 업무는 더 효율적으로 빠른 처리가 가능하게 하면서 사람들을 편리한 삶으로 이끌고 있다. 이러한 변화의 중심에는 인터페이스가 크게 작용하고 있으며, 점점 발전해 현재는 사용자 행동기반의 인터페이스 NUI(Natural User Interface)기술을 사용 중에 있다. NUI는 별도의 입력 장치 없이 터치, 제스쳐 등의 자연스러운 행동을 통해 시스템과 소통할 수 있도록 하는 기술이다. 그 중 스마트 폰은 NUI 기술을 적용한 대표적인 디바이스이다. 스마트폰 뿐만 아니라 NUI 기술은 키오스크, 대형 테이블 등의 터치스크린에 적용하여 문화, 국방, 광고 산업 등 다양한 분야로 개발 및 활용 중에 있다. 이에 본 연구에서는 NUI기술을 활용하여 멀티 터치 테이블 기반의 멀티 터치 회의 시스템을 구축하여 기존의 회의 방식을 개선할 수 있는 효율적인 시스템을 제안한다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2011년도 한국컴퓨터종합학술대회논문집 Vol.38 No.1(C)
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• pp.258-261
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• 2011

Living in the age of information people face problems related to information overload. Information is easy to produce, store and distribute through various communication channels, one of which is emails. With the appearance of the mobile devices, such as smart phones and tabs, people can have access to email inbox at any moment of time from everywhere. In this paper we present information extraction system with a specific goal of extracting meeting location from the announcement of seminar or conference. We apply a machine learning method (conditional random fields, CRF), train the system using annotated corpus of seminar and conference announcements and validate results by applying various extracted correction rules and patterns. Furthermore, we normalize extracted location, and reference using geo-coding databases, OpenStreetMap and Wikipedia resources to determine real geographical coordinates.

• Asia pacific journal of information systems
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• 제28권1호
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• pp.61-74
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• 2018

Meeting, Incentive travel, Convention, Exhibition (MICE) industries recently introduced new information systems, such as the exhibition guide system (EGS), to keep pace with Smart MICE and maximize the effect of exhibition performance. We investigate how persuasive EGS can affect the EGS acceptance of attendees via cognitive and affective response. We analyzed data from 442 EGS users at an exhibition. We found that information accuracy, information relevance, and source credibility were predictors of cognitive response. Source credibility had a significant effect on affective response. Furthermore, cognitive response was found to be a positive predictor of affective response and EGS acceptance. We also found affective response is a predictor of EGS acceptance. The theoretical and practical implications of the study were presented based on the results.

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2017년도 공동학술발표회
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• pp.245-245
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• 2017

• Journal of Information Technology Applications and Management
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• 제25권3호
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• pp.55-66
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• 2018

Early smart-work of company K was a technology-led way of applying ICT such as smart phones and mobile devices to business. After company K perceived the limitations of ICT-driven smart work, it propelled the work-smart, doing a work smart toward the way that human beings become central and a creative organizational culture is engendered. Company K propelled work-smart strategy in eight categories: simplification of data requirements, establishment efficient meeting culture, streamlining reporting and approval process, simplified document creation, overtime decrease, spreading flexible work system, settlement of healing leave, creating work-smart place. Company K set up an organizational culture secretariat dedicated to work-smart promotion and selected task priorities in consideration of urgency and effectiveness. Owing to such efforts, the company K's work-smart index rose sharply to 72 points this year from 56 points in the previous year. At the organizational culture survey, employees responded that organizational culture improved in all area. For a better future, company K analyzed its work-smart outcomes and planned progressively to improve its work-smart efforts based on employees opinions. This case study will serve as a guideline, for companies to make efforts to going forward to today work-smart beyond yesterday smart-work.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 1부
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• pp.286-291
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• 2008

협업 환경의 지능화는 협업 환경 자체와 구성원의 실시간 정보에 기반한 최적의 서비스를 제공하려는 시도에 서 시작한다고 할 수 있다. 현재까지는 해당 정보의 수집을 위해 여러 종류의 센서와 장비를 이용하는 유비쿼터스 컴퓨팅 기술을 도입해 왔으며 대표적으로 온도, 조명, 시간, 구성원의 동작, 표정, 목소리, 위치 등의 정보를 수집하여 활용하였다. 그러나 협업 활동은 구성원간의 사회적 관계를 내포하고 있으므로, 이들 사이에서 정의되어지는 관계나 역할을 충분히 고려하여야 협업 환경을 위한 최적의 서비스가 제공될 수 있으며, 이를 위해서는 여러 개의 센서와 장비를 이용하여 수집된 정보와 구성원 간의 관계 및 역할 정보를 통합하는 것이 필요하다. 따라서, 본 논문에서는 위의 통합된 정보를 회의 진행에 필요한 컨텍스트로 활용하여 필터링 된 협업 서비스를 설계하고, 실제 지능형 협업 시스템의 인터랙티브 디스플레이 서비스에 이를 적용 및 구현한 예를 보여준다.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제17권4호
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• pp.7-14
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• 2011

This paper is intended to suggest some reference materials for future elderly housing design, especially smart home, in Korea, by reviewing the elements and applications of smart home concept for older adults in USA. Research method includes collecting materials by attending the regular SmartHome$^{(R)}$ part meeting, the navigation of related homepages, and the analysis of collected materials. Current researches in Korea look initial stage and show some general principles without practical concept & technologies of elderly facilities. SeniorSmart$^{(R)}$ Center in USA started on August 2007 with the 3 parts of SmartHOME$^{(R)}$, SmartWHEELS$^{(R)}$ and SmartBRAIN$^{(R)}$. The Center has been doing various multidisciplinary research projects but slowing down the planned processes due to national economic recession. The major researches of SmartHome$^{(R)}$ part can be summarized as follows; CS-PFP( Continuous Scale Physical Function Performance) laboratory is being in operation to help older adults and families make the difficult decision regarding the ability and safety to live independently. Three levels of necessary laboratories from uninhabited space to senior living environment were accommodated for field research. As core technologies of SmartHome$^{(R)}$, predicting & warning system of fall risk on recognizing gait signature patterns to identify any deviation from the normal patterns of the older adults, home monitoring system which will send alerts to a specified relative and/or health care professional when vital signs of the older adults will not be within normal parameters, and Mobility & Research Clinic for evaluating, treating the older adults & multidisciplinary research are under development. SmartHome$^{(R)}$ has made collaborative research agreements for field laboratory with various retirement communities and also is continuing to work for experimental software engineering with the Fraunhofer Institute, Germany.