• Convergence Security Journal
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• v.11 no.3
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• pp.55-66
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• 2011

This research focus on the value of smart phones for university students in Korea, considering on the correlations between the main causes influencing intrinsic value(price attributes, function attributes), network value(learning effects attributes, externalities attributes) user satisfaction, and intentions of repurchase of the smart phones market in Korea. Through the statistical analyses on the 8 hypotheses from a research model, we found that intrinsic value and network value gave an attentive influence on user satisfaction and repurchase intention. Call charge and Liquid crystal display and Design of smart phone have an influenced user satisfaction and repurchase intention.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.22 no.1
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• pp.291-310
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• 2023

This study explores the factors which affect user acceptance for Robo Taxi, an electricity-based Autonomous Vehicles based on a Value based Adoption Model. The three main factors of benefit (usefulness and enjoyment), sacrifice (technicality and perceived fee level), and user experience about mobility services such as car sharing, taxi, and autonomous vehicles, were finally selected as independent variables as a influential factors on perceived values and adoption intention of Robo taxi. The study found that usefulness, enjoyment, and perceived fee had a significant effects on adoption intention, and some user experiences had a significant effect on benefit factors. This study has important implications for incorporating the Value-based Adoption Model results into the service design for the activation of Robo taxi, and furthermore, they can provide a theoretical basis for effective use of the research findings.

• Journal of Digital Contents Society
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• v.11 no.3
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• pp.357-365
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• 2010

Personalized web search engine provides personalized results to users by query expansion, re-ranking or other methods representing user's intention. The personalized result page includes URL, page title and small text fragment of each web document. which is known as snippet. The snippet is the summary of the document which includes the keywords issued by either user or search engine itself. Users can verify the relevancy of the whole document using only the snippet, easily. The document summary (snippet) is an important information which makes users determine whether or not to click the link to the whole document. Hence, if a search engine generates personalized document summaries, it can provide a more satisfactory search results to users. In this paper, we propose a personalized document summary system for personalized web search engines. The proposed system provides increased degree of satisfaction to users with marginal overhead.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.05a
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• pp.955-960
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• 2008

Supporting the interactive relation between gamer and computer, and offering the game world information, the user interface in online games plays an important role for a gamer to lead game into the intended direction. The purpose of this study is to analyse a currently utilized online game with educational implications and to analyse its user interface design elements, in order to suggest the strategy how to reformative educational online games.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06b
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• pp.394-399
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• 2008

유비쿼터스 컴퓨팅 환경에서 각기 다른 사용자들에게 적재적소에 양질의 서비스를 제공하기 위해서는 다양한 지능공간 상황정보들을 실시간으로 분석하고 개인 사용자의 의도 및 상황을 정확하고 효과적으로 모니터링 하는 것이 매우 중요하다. 지능공간 상황정보에는 환경정보, 상황인식 추론단계를 거친 1차적인 상황인식 결과 및 상황인식에 따른 시스템에서 제공하는 서비스정보 등이 있으며, 이러한 정보들은 개인화 서비스를 제공하기 위한 사용자 만족도를 측정하는 데에 중요한 데이터로 사용될 수 있다. 본 논문에서는 실시간 만족도 모니터링 시스템에서 활용할 수 있는 다양한 지능공간 상황정보들 간의 연관분석을 통해 효율적인 데이터 감시 전략을 제시하고 시나리오를 통해 그 적용 가능성을 살펴본다.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10b
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• pp.92-97
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• 2006

본 논문에서는 검색엔진을 한번도 접해보지 않은 초보자나 초등학생과 같이 어휘력이 부족하여 키워드 선정에 어려움이 있는 사용자들이 의문대명사가 포함된 질의 문장을 통해 보다 쉽게 웹 문서의 검색이 가능하도록 하기 위하여 의문대명사가 포함된 의문형 구문정보에 기반한 질의 분석 방법을 제안한다. 따라서 정보 검색을 위한 의문대명사형 자연어 질의에 대하여 구문 정보 및 술어 정보에 기반한 질의 분석 및 확장을 통하여 의문대명사를 구체적인 의미의 키워드로 대체하여 사용자의 질의 의도가 보다 명확해 지도록 함으로써 사용자가 원하는 정답 문서가 상위에 랭크되도록 하고자 한다.

• Journal of Digital Convergence
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• v.11 no.12
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• pp.155-160
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• 2013

The global recession circumstances, cloud computing has emerged as a new paradigm in the business IT sector. This paper explores the analysis of cloud service adoption Intension of Korean firms. Especially, we focus on Infrastructure as a Service (IaaS) among cloud services and apply TAM (Technology Acceptance Model) and VAM (Value-based Adoption Model) to analyze cloud service adoption intension The proposed exploratory model tests a number of hypotheses to understand the importance factors of IaaS adoption intension with TAM and VAM included additional cloud service characteristics such as scalability, agility, security, efficiency and reliability. Eventually, the findings of this study can not only help company users gain insights into IaaS adoption, but also help cloud service providers to develop their service effectively and improve marketing strategy in B2B cloud service market.

• Journal of Broadcast Engineering
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• v.10 no.4 s.29
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• pp.610-620
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• 2005

The current study investigates factors affecting intent to use of T-Commerce in enhanced TV programs. from the perspective of e-commerce users who have experienced terrestrial data broadcasting services. The research model hypothesizes the relationship among independent variables such as perceived usefulness, perceived ease of use, and the dependent variable, intent to use of T-Commerce. In addition, the moderating effect of user innovativeness is also analyzed. The results reveal the significant and positive relationship between perceived usefulness of e-commerce and intent to use of T-Commerce. Besides, the moderating role of user innovativeness is confined to the effect of the perceived usefulness on intent of use of T-Commerce. The findings of this study provide an implication that customer attracting strategies for potential T-Commerce users have to be differentiated based on the status in the T-Commerce development process.

• Journal of the Korea Society of Computer and Information
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• v.29 no.4
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• pp.161-175
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• 2024

In this paper, we examined the causes of privacy concern and related factors in personalized recommendation service of OTT. On the basis of the 'Big Five Personality model,' we established factors such as agreeableness, neuroticism, conscientiousness, extraversion, and openness to experience. Additionally, we established factors such as accuracy, diversity, and novelty of OTT recommendation's services, and perceived transparency. we analyzed the relationship between privacy concern, service benefit, and intention to give personal information. Finally, we analyzed the mediating effect of service benefits on the relationship between privacy concern and intention to give personal information. The results of this study showed that (1) neuroticism, extraversion and openness to experience had the significant effects on privacy concerns, (2) perceived transparency had the significant effects on privacy concern, 3) privacy concern and service benefit had the significant effect on intention to give personal information, and (4) as a result of multi-group analysis towards low and high groups to verify the moderating effect by service benefits, a significant difference was observed between privacy concern and intention to give personal information. The findings of the study are expected to help the OTT firms' understanding towards users' privacy protection behaviors.

• Electronics and Telecommunications Trends
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• v.26 no.4
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• pp.22-30
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• 2011

본 동향은 최근 이슈가 되고 있는 스마트TV 개발동향 및 시장전망에 대하여 알아보고, 스마트TV 검색 서비스에 대하여 소개한다. 스마트TV 검색 서비스는 사용자가 입력한 키워드 검색문의 의미를 해석하여 사용자가 의도하는 콘텐츠를 정확하게 찾아주는 시맨틱 기반 검색 서비스와 동일한 콘텐츠를 시청하고 있는 커뮤니티를 검색하여 콘텐츠에 대한 의견과 정보를 공유하는 소셜 네트워크 기반검색 서비스로 나누어 살펴본다.