코로나19 접촉 추적 앱의 스트레스 요인이 그 유용성에 미치는 효과

주재훈(Jaehun Joo),한위밍(Yumin Han) 한국지능정보시스템학회 2020 한국지능정보시스템학회 학술대회논문집 Vol.2020 No.6

커뮤니티 기반 소셜커머스의 신뢰와 고객 충성도의 결정요인: 샤오홍슈를 중심으로

주재훈(Jaehun Joo),후앙진(Huang Jin) 한국인터넷전자상거래학회 2021 인터넷전자상거래연구 Vol.21 No.1

A trend of social commerce which integrates characteristics of social media into e-commerce is to build trust through interactivity and empathy by using diverse user-generated content such as text, image, video, and live streaming. It is necessary to identify antecedents of trust and customer loyalty in the community-based social commerce. Interactivity and empathy are determinants of trust and customer loyalty in the community-based social commerce including Facebook commerce manager and Xiaohongshu. The present paper proposed a structured equation model integrating interactivity, empathy, trust, and customer loyalty, and presented 5 hypotheses derived from the research model. 220 valid samples were collected from users of Xiaohongshu which is a typical case of the community-based social commerce. Data were analyzed by SmartPLS 3.0 to test hypotheses. Both interactivity and empathy have positively a significant influence on trust and customer loyalty. Trust affects customer loyalty significantly. Implications for academics and practitioners were suggested.

인터넷전문은행 서비스의 한중 비교연구: 서비스의 편리성과 사회적 영향 요인을 중심으로

주재훈 ( Joo Jaehun ),우가인 ( Yu Jiatong ) 한국정보시스템학회 2019 情報시스템硏究 Vol.28 No.1

Purpose The purpose of the present study is to analyze the factors influencing the intention to use direct bank continuously from the perspective of service rather than technology. Hygiene factors including economic benefits, privacy, and unverified risks, and convenience of service as a motivator were considered as user’s satisfaction. A research model integrating the relationships among user’s satisfaction, its determinants, social influence, and continuous intention to use direct banks was proposed. Design/methodology/approach Structural equation modelling for validating the research model was employed. 253 valid data were collected from users of direct bank service in South Korea and China, and used to test six hypotheses. Findings User’s satisfaction and social influence were determinants of continuous use intention of direct bank. Convenience of service as a motivator has a significant influence on service satisfaction, while economic benefits, privacy, and unverified risks as hygiene factors have no significant influence on the continuous intention. Managers of direct banks need to implement service differentiation strategies to gain customers’ loyalty. Also they seek to find the determinants of social influence. The present study confirmed that there is a big difference between Korea and China in terms of factors affecting the continuous intention to use direct bank.

Semantics in Social Web: A Case of Personalized Email Marketing

주재훈(Jaehun Joo),명성재(Sungjae Myeong) 한국콘텐츠학회 2010 한국콘텐츠학회논문지 Vol.10 No.6

유용한 이메일은 소비자 구매행동에 긍정적 영향을 미치며, 온라인 상점에서 소비자를 구매로 유인하는 수단이 된다. 또한 이메일을 통해 소비자와 정기적인 접촉을 갖게 되면 고객의 충성도가 개선된다. 그러나 이메일에도 한계점이 있다. 통계에 의하면, 이메일의 절반 이상이 스팸이다. 이메일 사용자가 증가함에 따라 과거 몇 년 동안에 스팸이 급속도로 증가하고 있다. 본 연구에서는 그러한 이메일 마케팅의 한계점을 극복하기 위해 온톨로지 접근법을 제안하였다. 본 연구에서 제안한 방법은 스팸 메일을 제거하는데 온톨로지를 활용하는 것이 아니라 개인의 특성과 흥미를 고려하여 개인화 콘텐트를 서비스하는데 온톨로지를 적용하였다. 본 연구에서는 도메인 온톨로지를 개발하였고 기존의 FOAF도 활용하였다. 본 연구의 제안시스템을 시나리오를 통해 검증하였다. Useful emails influence on consumers’ purchase behavior and activate them to visit retail stores. Regular contact with consumers by e-mail has positive effects on brand loyalty. However, email marketing has a limitation. Spam now accounts for over half of all e-mail traffic. The increase of email users has resulted in the dramatic increase of spam emails during the past few years. In this paper, we proposed an ontology-based system offering personalized email services to overcome such limitation. Our method is not the ontology-driven spam filtering, but a personalized content service considering personal interests and relations among people by using FOAF and domain ontologies. Our system was successfully tested in email marketing domain.

U-불국사 : 실시간 온라인 화재조기감지시스템

주재훈(Jaehun Joo),임재걸(Jaegeol Yim) 한국전자거래학회 2007 한국전자거래학회지 Vol.12 No.3

본 연구는 900㎒와 2.4㎓의 주파수 대역을 갖는 각각의 센서노드를 무선개인네트워크로 연결하여 불국사의 문화유산을 보호하기 위한 화재조기감지시스템을 구축한 결과에 기반을 두고 있다. 본 연구에서는 먼저 유비쿼터스 센서네트워크에 기반을 둔 문화재관리를 위한 요구사항을 분석하고, 문화재관리에서 필수적인 화재감시 및 조기탐지를 위해 적용한 u-불국사의 개발 사례를 제시한다. 이 사례는 u-불국사의 실현이라는 시간에 따라 변형 또는 훼손되는 각각의 유형문화재에 대한 정보를 실시간 온라인으로 입수하여 이를 토대로 과학적으로 문화재를 관리할 수 있는 시스템인 u-문화재관리와 이들 문화유산에 대한 정보를 현장에서 휴대 단말기로 제공해 주는 U-관광 프로젝트의 초기단계로서 수개월간의 시험운영하고 있는 것이다. This paper presents real-time online early fire warning systems developed for preserving cultural properties of Bulguksa which is a world heritage designated by UNESCO. The system is based on the ubiquitous sensor network employing 900㎒ and 2.4㎓ bands. In this paper, we analyze requirements that should be considered in building effective management systems of cultural heritages by using wireless sensor network. Finally, we introduce the architecture, sensor and network design, and software design of the fire warning systems which is an initial version of U-Bulguksa. The current version of systems has been operating in Bukguksa for a few months. U-Bukguksa project sponsored by National Information Society Agency is ultimately aimed at developing an integrated system of U-cultural heritage management and U-tourism. The former aims to conserve and manage intangible cultural properties by providing a variety of environmental information such as erosion, crack, and gradient as well as fire which are important causes of loss and damage in real-time and online. The latter refers to the intelligent tourism information and guidance systems allowing tourists to get the personalized content on cultural heritages and help guidance with mobile devices in Bulguksa.

A Framework for Classifying Business Ecosystems Based on Customer Participation

Jaehun Joo(주재훈),Azizbek Marakhimov(아지즈벡 마라히모브) 한국인터넷전자상거래학회 2012 인터넷전자상거래연구 Vol.12 No.4

Most studies regarding business ecosystems consider members of collaborative business networks such as suppliers, business partner, and vendors. That is, most researches ignore the importance of customer participation in business ecosystems. Advanced information technologies enable customers to cooperate and co-create value in business ecosystems. In this paper, we propose a framework for classifying business ecosystems based on customer participation. We measure customer participation based on two dimensions, in which one is a type of platform classified into open and closed systems; the other is the level of customer participation expressed as high and low. In other words, we describe four types of business ecosystems from perspectives of customer participation and openness of platform. We analyze cases of each type of business ecosystem by providing evidence of cases such as Microsoft, Amazon and Twitter, and present strategic guidelines for each type of business ecosystems.

Diffusion of Semantic Web for Knowledge Management in the Perspective of Organizational Innovation

Jaehun Joo(주재훈) 한국산업경영학회 2006 한국산업경영학회 발표논문집 Vol.1 No.-

New information technology is a core factor enabling innovation in knowledge management (KM). The purpose of this study is to discuss how Semantic Web can overcome the limitations embedded in current KM systems. Finally, four types of innovators for applying the Semantic Web to KM are suggested. The innovators are classified by diffusion capability and control capability of technology push. The results contribute to offering a framework and guideline for theorists and practitioners who seek business value or organizational innovation by applying the Semantic Web to KM.

Diffusion of Smart Grid in South Korea

Jaehun Joo(주재훈) 한국인터넷전자상거래학회 2017 인터넷전자상거래연구 Vol.17 No.6

South Korea is one of the promising countries of smart grid technology and its diffusion. The study regarding diffusion of smart grid was conducted by using both qualitative method employing in-depth interview and quantitative approach through questionnaire. The study conducted in-depth interviews with users who participated into the Jeju testbed of smart grid, and the factors influencing consumers’ awareness toward smart grid for its diffusion were identified. Three research hypotheses regarding the relationship between consumers’ awareness and intention to use smart grid were proposed and tested. The study found out the results that consumers’ positive awareness toward smart grid, and convenience and easiness of usage significantly influence intention to use it.

건물 배치 전자도면을 이용한 모바일 폰의 피사체 인지 방법

임재걸(Jaegeol Yim),주재훈(Jaehun Joo),이계영(Gyeyoung Lee) 한국전자거래학회 2012 한국전자거래학회지 Vol.17 No.3

전자 정보 기술이 발전함에 따라, 스마트폰의 계산 능력은 더욱 막강해지고 저장장치의 용량은 더욱 거대해지고 있다. 이에 따라, 유용한 새로운 스마트폰 서비스가 많이 등장하고 있는데, 상황인지 서비스와 모바일 증강 현실이 근래에 가장 많이 연구되고 있는 대표적인 주제이다. 이러한 새로운 서비스에서 스마트폰에 장착된 카메라로 촬영한 사진 속의 개체를 인지하는 것은 매우 중요한 역할을 수행한다. 그래서 사진을 인지하는 연구가 많이 출판되었는데, 대부분은 처리 시간이 매우 긴 이미지 인지 기술 기반이다. 이와 반대로, 본 논문은 스마트폰의 센서로부터 수집한 데이터와 전자지도를 이용하여 사진 속의 개체를 인지하는 매우 빠르고 효율적인 방법을 제안한다. 제안하는 방법은 스마트폰이 제공하는 현재 위치와 방향각으로 카메라의 시선을 구하고, 카메라 시선과 교차하는 전자지도의 요소들을 찾는다. 그리고 교차하는 요소들을 조사하여 사진 속의 개체를 인지한다. As the techniques of electronic and information are advancing, the computing power of a smart phone is becoming more powerful and the storage capacity of a smart phone is becoming larger. As the result, various new useful services are becoming available on smart phones. The context-aware service and mobile augmented reality have recently been the most popular research topics. For those newly developed services, identifying the object in the picture taken by the camera on the phone performs an extremely important role. So, many researches of identifying pictures have been published and most of them are based on the time consuming image recognition techniques. On the contrary, this paper introduces a very fast and effective method of identifying the objects on the photo making use of the sensor data obtained from the smart phone and electronic maps. Our method estimates the line of sight of the camera with the location and orientation information provided by the smart phone. Then it finds any element of the map which intersects the line of sight. By investigating those intersecting elements, our method identifies the objects on the photo.

개인 생방송 시스템 연구

임재걸(Jaegeol Yim),주재훈(Jaehun Joo),우진석(Jinseok Woo),배철웅(Thomas Bae) 한국컴퓨터정보학회 2013 한국컴퓨터정보학회 학술발표논문집 Vol.21 No.1

본 논문은 실시간 개인 생방송 시스템 구현 사례를 소개한다. 본 시스템은 개인용 단말기에서 실행되면서 개인이 실시간 생방송을 할 수 있는 환경을 제공하는 클라이언트 프로그램, 클라이언트에서 웹캠코더로 제작된 영상을 참조영상, 이미지, 문자 등과 합성하여 HDMI, SDI, RTSP 출력을 제공하는 데이터 관리 프로그램, 그리고 방송스케줄 등록과 큐 쉬트(Cue Sheet) 등록 기능 및 사용자 관리 기능을 제공하는 운영관리 프로그램 등으로 구성된다. 본 시스템의 특징은 생방송 지연 시간이 1초 미만이며, 방송 영상과 배경화면을 합성하는 기능, 그리고 고화질 영상을 출력하는 기능을 제공하는 것이다.