• Journal of Information Science Theory and Practice
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• 제7권1호
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• pp.52-71
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• 2019

An insider threat is a threat that comes from people within the organization being attacked. It can be described as a function of the motivation, opportunity, and capability of the insider. Compared to managing the dimensions of opportunity and capability, assessing one's motivation in committing malicious acts poses more challenges to organizations because it usually involves a more obtrusive process of psychological examination. The existing body of research in psycholinguistics suggests that automated text analysis of electronic communications can be an alternative for predicting and detecting insider threat through unobtrusive behavior monitoring. However, a major challenge in employing this approach is that it is difficult to minimize the risk of missing any potential threat while maintaining an acceptable false alarm rate. To deal with the trade-off between the risk of missed catches and the false alarm rate, we propose a unified psycholinguistic framework that consolidates multiple text analyzers to carry out sentiment analysis, emotion analysis, and topic modeling on electronic communications for unobtrusive psychological assessment. The user scenarios presented in this paper demonstrated how the trade-off issue can be attenuated with different text analyzers working collaboratively to provide more comprehensive summaries of users' psychological states.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2010년도 하계학술대회 논문집
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• pp.188-188
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• 2010

Recently, there has been increased incessantly an interest in research area on energy material for electronic and electric energy generation applications. The proposed material takes an unobtrusive operation into the simple displacing mechanism using chemical impact material. However, this material makes up a radical design, based on the operation of the stoichiometry ratio on the material architecture.

• 정보관리학회지
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• 제28권4호
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• pp.7-31
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• 2011

본 연구는 사용자의 중심의 시스템을 지향하고 있는 현 시점에서 사용자 인터페이스 연구의 동향을 분석하는 것이 그 어느 때 보다 중요하다고 보고, 최근 10년 동안에 정보학분야에서 수행된 사용자 인터페이스 연구를 정량적으로 그리고 정성적으로 살펴보았다. 즉, 6개의 정보학관련 학술잡지에 수록된 128편의 논문을 분석하여 다음과 같은 4가지의 연구질문에 답하였다: 1) 어떠한 주제들이 연구되었는지, 2) 어떠한 학술지가 주로 어떠한 주제의 논문을 출판하는지, 3) 어떠한 방법론이 어떤 주제에서 많이 사용되고 있는지, 4) 연도별 연구변화는 어떠한지. 이에 따라 본 연구는 주제별 분포, 학회지별 분포, 학회지별 주제 분포, 방법론별 학회지 분포, 방법론별 주제 분포, 연도별 주제 분포와 연도별 학회지 분포를 살펴보고 정성적으로 각각의 논문들을 주제별로 리뷰하였다. 그 결과, "정보관리학회지"가 비율적으로 이 주제를 가장 많이 다루고 있는 것으로 나타났고, '웹사이트 평가', '탐색 인터페이스', '정보설계', '상호작용 스타일 설계' 순으로 연구가 많이 수행되었다. 또한 방법론은 서베이 연구 방법론, 비개입적 연구방법론, 실험연구 방법론 순으로 많이 사용된 것으로 나타났다. 그리고 사용자 인터페이스 연구는 2000년대 초반에 후반보다 더 많은 연구가 수행된 것을 알 수 있었다. 앞으로 사용자 인터페이스 연구가 보다 확고한 정보학의 소주제 영역으로 자리 잡기 위해서는 폭넓은 연구주제와 연구방법론의 선택이 필요하다고 본다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1301_1302
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• 2009

Recently, there has been increased incessantly an interest in research area on micro-fluidic pump for electronic and biological applications. The proposed pump takes an unobtrusive operation into the simple displacing mechanism using peristaltic traveling waves without the physical moving valves. And, this piezopump makes up a panel type design. The ATILA simulation was performed to estimate the operating frequency of the vibrating wave mode, to optimize the design conditions of piezopump such as structure, elastic body material, piezoelectric ceramics, and to analyze the distribution of vibration displacement. The best measured value of the pumping rate is about $118{\mu}l$/min under the following parameters : 4-wave mode, 50kHz operating frequency, $200V_p$.

• 한국문헌정보학회지
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• 제32권3호
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• pp.97-112
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• 1998

본 연구는 정보제공을 주된 기능으로 하는 우리나라 전문도서관의 참고봉산 현장에서 일어나는 연구자의 다양한 정보질의에 응답하는 참고사서의 정보탐색과정을 관찰과 질문지법을 통하여 분석한 것이다. 질의에 대한 응답의 정확성이 저조한 이유가 어디에 있으며, 연구자의 정보만족도에 영향을 미치는 저해요인이 무엇인지를 구명함으로서 봉사내용의 질과 응답의 정확성을 높일 수 있는 개선방안을 모색하자는 데에 목적을 두고 있다.

• 대한인간공학회지
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• 제24권3호
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• pp.29-34
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• 2005

Little research has been performed regarding auditory icons even though auditory icons have great potentials as a strategy for creating informative, intuitively accessible, and unobtrusive interface. Therefore, this study was conducted to design new auditory icons through the iconic mapping for ten most frequently used mobile phone menus, and to show the usability of auditory icons. Two most familiar auditory sounds for each menu were collected and compared to the current button-pressing sound. The results show that the newly designed auditory icons had shorter recognition times, better satisfaction than the current icons. In other words, auditory icons could be an effective interface to provide a redundant feedback along with visual feedbacks in navigating mobile devices.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2004년도 추계학술대회 논문집
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• pp.1048-1052
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• 2004

The ubiquitous environment is to support people in their everyday life in an inconspicuous and unobtrusive way. This requires that information of the person and her preferences, liking, and habits are available in the ubiquitous system. In this paper, we propose the context aware system that can provide the tailored information service for user in ubiquitous computing environment. The system architecture is composed of 4 domain models that can perform some pre-defined tasks independently. And we suggest the hybrid algorithm combined with fuzzy and Bayesian network to reason what information is suitable for user environment. Finally, we apply to agent based RGA(Research Guide Assistant).

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권7호
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• pp.1569-1584
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• 2013

Ubiquitous interaction in a pervasive environment is the main attribute of smart spaces. Pervasive systems are weaving themselves in our daily life, making it possible to collect user information invisibly, in an unobtrusive manner by known and even unknown parties. Huge number of interactions between users and pervasive devices necessitate a comprehensive trust model which unifies different trust factors like context, recommendation, and history to calculate the trust level of each party precisely. Trusted computing enables effective solutions to verify the trustworthiness of computing platforms. In this paper, we elaborate Unified Trust Model (UTM) which calculates entity's trustworthiness based on history, recommendation, context and platform integrity measurement, and formally use these factors in trustworthiness calculation. We evaluate UTM behaviour by simulating in different scenario experiments using a Trust and Reputation Models Simulator for Wireless Sensor Networks. We show that UTM offers responsive behaviour and can be used effectively in the low interaction environments.

• International Journal of Computer Science & Network Security
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• 제21권4호
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• pp.178-185
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• 2021

The emergence of social networks has led to the flourishing of a new golden era of branding, which is a challenge for companies due to the need for creative positioning of companies with an emphasis on building trust and loyalty to the brand. Consumers are becoming more demanding and due to a wide range of products in different markets, make demands that are more stringent on companies. The goal of this article was to study the main trends of branding and advertising on social networks to develop a new approach to brand promotion. Methodology. The quantitative and qualitative research design was used to determine the main trends in branding and advertising on social networks. The methodology included the following methods: 1) analysis of the relationship between brand value and brand content strategy, 2) content analysis of the content of companies in social networks on the example of 10 world-famous brands with the highest value. The results allowed forming the criteria of effective content and communication: simplicity of content and simplicity of communication, lack of direct advertising of products, emphasis on global socio-economic problems and social orientation, unobtrusive communication, content creativity, indirect information about the product or work, the history of the company's development through various tools. The main content strategies of brands are defined: storytelling strategy; strategy of informing about the history of the company's development; entertainment and information strategy; strategy of joint interaction with the audience through the involvement of wellknown influencers or users of products. The theoretical and practical value of the results is confirmed by the conceptualization of the main content strategies of world-famous brands, which are pioneers in new ways to build relationships with users through social networks. The research proposes to use a customer-oriented approach to brand promotion. This means studying consumer behavior and predicting possible changes in behavior, which determines the level of interaction with the brand, the content strategy of the brand, and its effectiveness.

• 한국문헌정보학회지
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• 제13권
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• pp.95-119
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• 1986

The objective of this study is to search for a theoretical and practical solution to the question of what is the most effective and qualitative method of information service for the college and university libraries in Korea. Assuming the maximum service or total service theory in information services, therefore, it appears natural that the subject specialist who is highly knowledgeable in his subject is indispensable in raising the quality of information librarians. The procedure of this research was as follows: There was no college and university library employing any full-time subject spceialist in Korea. This research, however, was proceeded on the assumption that subject specialists are already employed in all of the college and university libraries after the subject specialist system is established. The least qualification of subject specialist is limited, based on the criteria given by the foreign literature, to those who have master's degree in Library Science and bachelor's degree in any other subject area, those who have bacholor's degree in Library Science and master's degree in any other subject area, or those who have both bacholor's and master's degrees in Library Science with minor in any subject field . To prove the research hypothesis that the subject specialist will perform his role more efficiently than the generalist in effectively providing information service based on both accuracy and speed, this research as an obtrusive testing method analyzed the effectiveness by presenting information questions to the generalists and subject specialists who are information librarians in college and university libraries. For this study 20 librarians working at 12 university libraries were tested for performance levels of information services. The result showed $59.75\%$ an absolute performance rate and $75.20\%$ an adjust performance rate. Compared to Thomas Childer's 1970 study in which he used the unobtrusive testing method, these results were $5\%$ higher in the absolute performance rate and $11.36\%$ higher in the adjust performance rate. In comparing the generalist with the subject specialist in efficiency of information service, while the absolute performance rate was $57.08\%$ and the adjust performance rate was $73.08\%$ in the case of the generalist, the absolute rate was $63.75\%$ and the adjust rate was $78.38\%$ in the case of specialist, therefore, the efficiency of the subject specialist was $6.67\%$ higher in the absolute performance rate and $5.30\%$ higher in the adjust performance rate than that of generalist. But the factor of speediness was excluded from the analysis because of the difference between the time the interviewers recorded and the time the interviewee recorded. On the basis of the result of this research, it should be desirable to educate subject specialists and employ them as information librarians and for them to function as efficient subject specialists in order to improve the effectiveness of information services, the nucleus of the raison d'etre of college and university libraries.