• Information Systems Review
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• v.20 no.3
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• pp.33-49
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• 2018

Since there are growing concerns regarding personal information, users have perceived the importance of it. It makes users try to manage and control personal information by their own intentions. Therefore, we assume users now have begun to perceive psychological ownership on personal information. A main objective of this study is to identitythe relationship between accountability, self-identity, self-efficacy and sense of belongingness and psychological ownership on personal information. We conduct an online-basedsurvey and establish a structural equation model for testing hypothesis. The results show that users' accountability, self-identity and sense of belongingness positively influence to psychological ownership on personal information. Additionally, users' perceived psychological ownership on personal information increase their concern for information privacy. This study suggests a new concept as 'perceived psychological ownership on personal information' to explain for intentions of their psychological possessions toward personal information. The findings of this study can provide a way for how firms have to require clients' personal information with increasing their satisfactions.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.30 no.12
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• pp.60-70
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• 2012

• Journal of Digital Convergence
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• v.13 no.3
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• pp.241-247
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• 2015

This experimental research explores effect of cognition desire as audience's factor, and attention as context factor on audience's acquirement of information and understanding. Most previous researches of media effect focuses on news contents of TV, Newpaper and Internet. However the number of researches on TV documentary which contains lots of information very limited, and It's difficult to find researches on effect of cognition desire and attention on audience. Therefore this research tries to find effect of cognition desire and attention on audience's acquirement of information and understanding through experiment of TV current documentary. For this experimental research, 2 groups of subjects composed of 135 university students were exposed to 2 different viedeo clips of TV current documantary, one with window buzz, the other without it, after designing cognition desire as internal factor of 2 groups. Questions which were designed to measure cognition desire, acquirement of information and understanding of message were asked and analysed. This research found that subjects with higher degeree of cognition desire showed higher degree of acquirement of information and understanding than subjects with lower degree of cognition desire. However the effect of attention on audience's acquirement of information and understanding could not be found.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2007.05a
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• pp.143-154
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• 2007

인터넷이 대중화대면서 온라인 쇼핑이 가능해졌고 구매자들은 인터넷을 통해 구매와 관련 된 경험, 서비스 등을 다른 사람들과 공유할 수 있게 되었다. 인터넷 쇼핑의 특성상 제품을 직접 눈으로 보고 만져 볼 수 없기 때문에 온라인 구전(Online Word of mouth)이 상품 구매 판단의 잣대로 활용되고 있다. 따라서 본 연구에서는 온라인 쇼핑몰에서 구전 정보 특성이 구매자들의 인지된 구전 정보 가치에 영향을 미치는지 실증적으로 분석하였다. 구전정보의 객관성, 관련성, 신빙성, up-to-dateness는 인지된 구전정보가치 즉 구매 불확실성 감소에 긍정적인 영향을 주었다. 구매 불확실성 감소는 온라인 쇼핑몰의 신뢰에 긍정적인 영향을 미쳤다.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06a
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• pp.247-250
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• 2011

본 연구는 단일 문서로부터 문서가 내포하고 있는 지식정보를 지식구조 혹은 인지스키마로 불리는 형태로 자동 생성하는 기법을 제안한다. 제안된 기법을 이용하여 자동 생성된 지식구조는 실제 문서 학습자의 학습 전, 후의 지식구조, 문서의 해당 지식을 명확히 알고 있는 도메인 전문가의 지식구조와의 유사도 측정을 통해 검증하였다. 자동 생성된 지식구조는 학습자의 학습 후 지식구조, 전문가 지식구조와 상당한 유사성을 보이며, 문서의 지식 정보를 인지적인 관점에서 정교하게 표현 하고 있음을 확인하였다. 이는 기존의 단어 기반의 정보 기술들에서 더욱 고차원적인 지식 정보를 활용한 지식구조 기반 정보 기술의 연구 가능성을 제시한다.

• Journal of Convergence for Information Technology
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• v.10 no.9
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• pp.154-163
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• 2020

This study aimed to examine the speed of cognitive response of users by color application for the information searching or the searching how to use the target object. Also, the purpose of this study is to explore how color application has an impact on cognitive response, and to find the mediating effect of user's emotional response. A total of 227 persons were collected and analyzed by PASW 18.0 for data analysis. In conclusion, it was confirmed that color application had a direct effect on cognitive response, suggesting that emotional response may have a slight effect. Among four sub-factors of color applications, the most contribution factor of cognitive response was the clatiry and the lowest factor was the attention.

• The Journal of the Korea Contents Association
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• v.10 no.5
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• pp.436-445
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• 2010

The purpose of this research is to know what factors have impacts on their risk perception and attitude in risk communications. This research shows the research findings that the determinant factors of risk perception are the possibility to control the risk, benefits of recognition, the specialty of risk management, and the usefulness of information about the risk. And also the results have shown that the determinant factors of risk attitudes are the possibility to control the risk, the understanding of science and technology, the familiarity with the risk, the usefulness information about the risk, the accuracy of information, and the initiative in the protection of citizens from the risk. As the results have indicated, common determinant factors are the usefulness of information about the risk and the possibility to control the risk. Both of them that affect risk perception and attitudes on electromagnetic waves are important factors in risk communication research. Therefore this study shows that what factors suppose to be considered important in risk communication process about risk of electromagnetic waves.

• KIPS Transactions on Software and Data Engineering
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• v.2 no.9
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• pp.629-642
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• 2013

Recently, with the advent of smart phones, it brought many changes in lives of modern people. Especially, application utilizing the sensor information of smart phone, which provides the service adapted by user situations, has been emerged. Sensor data of smart phone can be used for recognizing the user situation, Because it is closely related to the behavior and habits of the user. currently, GPS sensor one of mobile sensor has been utilized a lot to recognize basic user activity. But, depending on the user situation, activity recognition system cannot receive GPS signal, and also not collect received data. So utilization is reduced. In this paper, for solving this problem, we suggest a method of user activity recognition that focused on the accelerometer sensor data using smart phone. Accelerometer sensor is stable to collect the data and it's sensitive to user behavior. Finally this paper suggests a noble approach to use state transition diagrams which represent the natural flow of user activity changes for enhancing the accuracy of user activity recognition.

• Journal of Internet Computing and Services
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• v.12 no.2
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• pp.75-83
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• 2011

Wireless services and devices that use frequency increase more and more because of advancement of the industry. Therefore, the available spectrum band becomes increasingly insufficient. Cognitive Radio, which adaptively utilizes the vacant licensed spectrum band, is considered as an effective way to utilize the spectrum resource shortage. CR user should move from current allocated channel to vacant channel to avoid the interference to the primary user when the primary user appears in the current channel. In this case, CR system undergoes the break off time until handshake is completed. So, in order to guarantee the Quality of Service(QoS) of CR system, fast handshake method is required. In this paper, we propose the embedded control signal transmission technique to reduce the break off time. This method can transmit the control signals in data transmission period as well as the broadcasting period. Proposed method can improve the data throughput and decrease the break off time. Computer based simulation proves that our proposed scheme outperforms conventional one.

• Journal of the Society of Disaster Information
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• v.16 no.3
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• pp.430-439
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• 2020

Purpose: As the frequency of impact typhoons increases and the form of damage becomes more complicated, the need for information to help disaster response workers recognize the typhoon situation in advance is growing. In this study, Definitions and implementation measures for information utilized at each stage of the task were proposed in carrying out typhoon response tasks that occur every year. Method: In 2019, the government classified information that was used for each step of work and conducted analysis on necessary information for the situation. Based on the analyzed information, typhoon status information was established through an opinion survey by central and local government officer. Result: The task of typhoon situations was the most important part of monitoring weather conditions and sharing damage situations, and the information utilized was analyzed to require information derived through the convergence of historical and situation information. Conclusion: As the correlation between work and information between the response departments increases as the typhoon situation progresses, information about typhoon situation should be applied to the actual typhoon situation in the future to enhance information and establish a related system.