• 한국HCI학회:학술대회논문집
• /
• 2009.02a
• /
• pp.273-277
• /
• 2009

Recently user-generated contents have been drastically increased. In this paper, we introduce the user reputation which can be used to evaluate quality of the content they created. First we have composed a social network that is based on user activity. And we have developed the algorithm to evaluate the users' reputation using this social network.

• Journal of the Korean Society for Railway
• /
• v.11 no.4
• /
• pp.390-397
• /
• 2008

Quantitative RAM (Reliability, Availability, Maintainability) is the one of the important indicator that shows the quality of rolling stock. It is usually required in the domestic and abroad purchase specification of rolling stock. And achieving and demonstrating the quantitative RAM goals is also required. In this study, the method to set up these goals will be proposed in the aspects of service and logistic reliability, operational, achievement or inherent availability and maintainability. And we apply this proposed method to the real operation data.

• Information and Communications Magazine
• /
• v.21 no.4
• /
• pp.39-46
• /
• 2004

인터넷전화는 1998년부터 KT를 비롯한 기간 통신사업자는 물론, 많은 별정통신사업자가 틈새시장 공략 및 시장방어를 위해 서비스를 시작하였다. 당시에는 국제전화 시장을 중심으로 서비스가 제공되었으나 초고속인터넷 등 국내의 인터넷 기반시설이 빠른 속도로 확산되었을 뿐 아니라, VoIP 기술의 발전으로 인해 신뢰도 및 통화품질이 상당히 향상되어 "이용 가능한 수준의 서비스"에서 "만족할 만한 수준의 서비스"로 인식이 전환되었다.(중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2015.07a
• /
• pp.136-137
• /
• 2015

본 논문에서는 현재 운영 및 서비스 중인 DGNSS 기준국 및 감시국 서비스의 요구 성능과 그 한계에 대해 사용자 관점에서 분석하고, 이를 극복하기 위한 방안으로서 항만 항법신호(PNT) 감시 기술과 항법신호의 신뢰도를 결정하여 사용자에게 제공하기 위한 기술적 고려사항에 대해 분석한다. 먼저 DGNSS RSIM 운영 현황과 국제기구에서 요구하는 해양항법 요구성능에 대해 각각 분석한다. 다음으로 항만 혹은 사용자 관점에서 해당 요구성능을 충족시킬 수 있는지 분석한 다음, 이를 위한 보완할 수 있는 항만 항법신호 감시 및 신뢰도 서비스 기술에 대해 소개하고 향후 고려사항에 대해 제시한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2014.06a
• /
• pp.163-164
• /
• 2014

본 논문에서는 항만 입출항시 선박의 안전 강화를 위하여, 항만 PNT(Position, Navigation, and Timing) 수신 모듈의 예상 측위 정확도와 그 오차수준을 평가하여 사용자에게 제공하기 위한 해상 PNT 정보의 신뢰도 서비스 개념에 대해 다룬다. 국제해사기구(IMO)에서 요구하는 해양항법성능인 항만 입출항시의 측위정확도(Accuracy)와 무결성(Integrity), 그리고 가용성(Availability)을 충족하기 위한 성능 평가기법과 성능 검증방법에 대해 제시한다. 사용자 관점에서의 GPS 오차수준을 분석하기 위하여, 신뢰도 측정 및 평가를 위한 수평보호수준(HPL, Horizontal Protection Level)과 스탠포드 다이어그램 분석을 통한 평가를 실시하여, 신뢰도 측정지수를 기반으로 사용자에게 신뢰성 수준을 제공하기 위한 방안을 제시한다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.20 no.2
• /
• pp.210-217
• /
• 2019

This research examines whether the evaluation index used Dream Start services operation evaluation has 'reliability in evaluation field and area' and 'whether there is discrimination according to evaluation index'. To do this, we conducted an empirical analysis based on the evaluation data of 126 municipal and provincial governments that received the 2018 Dream Start services operation evaluation. First, as a result of examining whether there is trust in each evaluation area, it was found that the reliability of the basic construction, integrated case management, and service operation field is higher than .6 and the lower evaluation indexes are the same Standards were met. However, the field of resource exploit and connectivity was not so reliable as the concept of sub-domains. Second, 'Are there discriminatory power according to the evaluation indexes?' The results showed that 18 of the 28 indicators were highly discriminative. On the other hand, 10 indicators showed low discrimination power.

• International Commerce and Information Review
• /
• v.17 no.3
• /
• pp.323-358
• /
• 2015

This study strives to identify effects of the relationship between the loyalty program and service loyalty through focusing on the role of the loyalty program which is used as a means of promotion in relationship marketing. According to the result of the empirical testing, the higher the economical usefulness and psychological usefulness (the perceived value of the loyalty program) are, the higher the customer satisfaction rate was. Also, the higher the satisfaction of the loyalty program, the more credibility increased. Furthermore, the higher credibility was the more positive the influencing relationship with a heightened level of commitment was found to be. It was discovered that different factors such as customer satisfaction, customer trust, customer commitment in the loyalty program have a positive influence on service loyalty. Loyalty program satisfaction, along with loyalty program credibility and commitment indirectly affected service loyalty.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2014.07a
• /
• pp.117-118
• /
• 2014

최근 공공기관의 공공데이터 제공이 활성화 되고 있으며, 이를 활용한 응용서비스에 대한 요구도 증가하고 있는 추세이다. 현재 교통정보예측 플랫폼은 실시간 교통정보 또는 과거 교통정보이력을 분석하여 미래의 교통량이나 도착시간정보를 제공하고 있으나 날씨, 사고 등과 같은 미래 교통정보에 즉각적인 영향을 줄 수 있는 요소를 배제하고 있어 높은 신뢰도를 확보하기 어렵다. 본 논문에서는 교통정보예측에 영향을 주는 요소인 기상, 사고, 교통정보와 같은 공공데이터를 효율적으로 수집 저장 처리할 수 있는 저장방식 및 신뢰도 높은 교통정보를 예측할 수 있는 예측기술이 포함된 b-Traffic 서비스 플랫폼을 제시한다.

• Journal of Information Technology and Architecture
• /
• v.11 no.1
• /
• pp.33-44
• /
• 2014

Recently, blogs have attracted much attention as personal media. The power of blogs as a way to provide valuable resources on Internet is so tremendous because of the high speed of information dissemination and the huge influence of the circulated information on Internet users even when the information itself is not true. Especially, contents on blogs that attract a lot of public attention are sometimes reproduced or magnified in an inappropriate way. In this paper, a method to measure the trust level of contents posted on personal blogs is proposed to reduce the damage of wrong information circulated along with blog networks. Trust variables such as relationship data in SNS are used to measure the comparative trust level of blog contents. The structure of the prototype system is also designed to apply this framework to blogsphere.

• Korean Journal of Social Welfare
• /
• v.59 no.4
• /
• pp.83-109
• /
• 2007

Client satisfaction has been getting more attention in the field of social work in Korea. However, there have been very few standardized tools to measure the construct. The purpose of this study is to develop the Korean version of the Client Satisfaction Inventory developed by McMurtry and Hudson. This study was conducted with a total of 259 clients of 6 social service agencies in Seoul metropolitan areas. Based upon the results of factor analysis, the Korean version of the Client Satisfaction Inventory(CSI-K) is considered a two-factor measure. The alpha coefficients of the subscales of the CSI-K are .964 and .885 which are considered very high. The subscales are significantly correlated with convergent variables and very weakly correlated with discriminant variables. It is suggested that scales more suitable for social work settings in Korean be developed.