• International Commerce and Information Review
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• v.15 no.4
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• pp.391-418
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• 2013

The development of web 2.0 technologies created the popularization of social media. People use social media for information communication with many purposes. Under such an environment, this paper examines the acceptance of word-of-mouth information dissemination through social media. The determinants of acceptance and the effect of acceptance on purchase intention as the result of information on social media pertaining to overseas tourism are researched in detail. The consumer choice for international travel involves a decision making with high uncertainty and thus people are using the word of mouth information strongly. Empirical analysis using SPSS, AMOS analysis software was performed on sample data consisting of 385 collected surveys. This paper shows the neutrality of eWOM, the professionalism of senders, and that the practicability of eWOM significantly affects the acceptance of the information. In addition, the acceptance of eWOM information has a significant effect on the spread of eWOM and customers' purchase intention. The paper shows that the practicability of information and the professionalism of word-of-mouth information should be improved.

• Korean Security Journal
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• no.42
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• pp.309-334
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• 2015

Now it is a proper time to discuss on the issue of crisis negotiation more in-depth. Thus far, studies on crisis negotiations have been mere manual style guidelines of "what to do". More substantial and rigorous theoretical propositions and empirical studies await for the future development of crisis negotiation field. This article contributes to the theoretical enrichment of the study of crisis negotiation field. Conventionally, two problems of misperceptions are raised in crisis negotiation. For instance, even though two parties used the same word, there can appear a substantial difference. Even worse, in many cases parties of negotiation send misinformation intentionally or unintentionally. This noise of communication can cause a serious misperception for parties of crisis negotiation including police officers, perpetrators, and hostages. However, this issue has not yet discussed in the field of crisis negotiation in Korea. This paper pointed out such important but not yet focused issue. It first discusses about the problem of perception and misperception. Next, it presents the negative impacts of such perception and misperception in crisis negotiation communication. Finally, it suggests the policy implications.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.12 no.1
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• pp.127-134
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• 1990

NBCCS is a hereditary disorder characterized by multiple defects of ectodermal and mesodermal structure, which is chiefly affected on skin, jaws & skeleton, CNS, eye and sexual organ. It is well associated with multiple odontogenic keratocyst on the jaws. Thus, we intended to investigate other anomalies presenting on NBCCS in cases of multiple odontogenic keratocyst which were treated in our hospital from 1980 to 1989. Here we reported 6 cases of NBCCS.

• The Journal of Korea Robotics Society
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• v.10 no.3
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• pp.171-177
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• 2015

A telerobot offers a more engaging and enjoyable interaction with people at a distance by communicating via audio, video, expressive gestures, body pose and proxemics. To provide its potential benefits at a reasonable cost, this paper presents a telepresence robot system for video communication which can deliver speaker's head motion through its display stanchion. Head gestures such as nodding and head-shaking can give crucial information during conversation. We also can assume a speaker's eye-gaze, which is known as one of the key non-verbal signals for interaction, from his/her head pose. In order to develop an efficient head tracking method, a 3D cylinder-like head model is employed and the Harris corner detector is combined with the Lucas-Kanade optical flow that is known to be suitable for extracting 3D motion information of the model. Especially, a skin color-based face detection algorithm is proposed to achieve robust performance upon variant directions while maintaining reasonable computational cost. The performance of the proposed head tracking algorithm is verified through the experiments using BU's standard data sets. A design of robot platform is also described as well as the design of supporting systems such as video transmission and robot control interfaces.

• Journal of Korea Technology Innovation Society
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• v.13 no.1
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• pp.204-230
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• 2010

The accelerating growth in Technology-Based Self-Service (TBSS) today is giving rise to questions about the acceptance of such forms of service delivery by all kinds of consumers. Using the Technology Acceptance Model (TAM) and TBSS quality evaluation model as a theoretical framework, this study investigates the effects of perceived usefulness, perceived easy of use, enjoyment of users acceptance of TBSS and self-monitoring as a individual variable. The results lend support to the hypothesist. Implications for service practitioners as well as directions for future research are discussed.

• Journal of KIISE:Software and Applications
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• v.27 no.4
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• pp.342-356
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• 2000

We present a static analysis method to automatically generate test data that raise exceptions in input programs. Using the test data from our analysis, a programmer can check whether the raised exceptions are correctly handled with respect to the program's specification. For a given program, starting from the initial constraint that a particular raise expression should be executed, our analysis derives necessary constraints for its input variable. Correctness of our analysis assures that any value that satisfies the derived constraints for the input variable will activate the designated raise expression. In this paper, we formally present such an analysis for a first-order language with the ML-style exception handling constructs and algebraic data values, prove its correctness, and show a set of examples.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.12
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• pp.224-231
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• 2013

Defining the concept of prominent audio content as the most informative audio content from the users' perspective within a given unstructured audio segment, we propose a simple but robust intensity-based attack/release pattern features to detect the prominent audio content. We also propose a web-based annotation procedure to retrieve users' subjective perception and annotated 18 hours of video clips across various genres, such as cartoon, movie, news, etc. The experiments with a linear classification method whose models are trained for speech, music, and sound effect demonstrate promising - but varying across the genres of programs - results (e.g., 86.7% weighted accuracy for speech-oriented talk shows and 49.3% weighted accuracy for {action movies}).

• Annual Conference of KIPS
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• 2005.05a
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• pp.487-490
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• 2005

이동 에이전트란 어떠한 동작을 수행하는 명령과 자신의 상태 정보를 포함하는 자율적인 소프트웨어 객체이다. 이동 에이전트는 자율적으로 이동할 수 있으며 복제와 증식이 가능하고 사용자의 업무를 대신해서 수행할 수 있다는 장점으로 인해 전자상거래에서 사용자를 대신하여 상품 검색 및 구매에 사용될 수 있다. 이 때 다수의 이동 에이전트가 하나의 그룹이 되어 서로 메시지를 주고받으며 사용자의 요구사항을 수행한다. 이동 에이전트간 전달되는 메시지는 상품의 정보뿐 아니라 사용자 또는 에이전트의 비밀정보가 될 수 있다. 악의를 가진 외부 개체로부터 그룹 멤버쉽이나 메시지가 변경된다면 이동 에이전트 그룹은 사용자가 의도하지 않는 동작을 수행할 수 있다. 본 논문에서는 이러한 공격을 방어하기 위해 그룹 멤버간 암호화 통신을 할 수 있는 그룹 세션키 생성 기법을 제안한다. 기존 기법과는 달리 본 논문에서는 중앙 키 분배 서버 없이 그룹에 참가하는 이동 에이전트 각자 그룹 세션키를 생성한다. 또한 키 갱신을 주기적으로 수행함으로써 외부 개체로부터 그룹 세션키의 습득을 어렵게 한다.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10c
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• pp.297-300
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• 2007

본 연구는 디지털 잉크를 통해 웹 프레젠테이션을 제작하는 인터페이스를 제안한다. 온라인 환경에서 다수의 사용자들이 적절한 시간과 장소에서 프레젠테이션을 들을 수 있는 웹 프레젠테이션 시스템의 역할이 더욱 증대될 것으로 예상되는 가운데, 프레젠테이션 의도를 보다 명확히 전달하면서 이에 따르는 비용과 수고를 최소로 하는 프레젠테이션 시스템에 대한 연구가 더욱 요구되고 있다. 이를 위해 우리는 사용자에게 가장 친숙한 #Pencil & Paper# 방식인 디지털 잉크 인터페이스를 기반으로 가상 프레젠터의 애니메이션 효과를 증강하고, 프레젠터와 사용자간의 상호작용을 지원하는 웹 프레젠테이션 시스템을 제안하게 되었다. 이는 실제 프레젠테이션이 가진 장점들을 살리면서 보다 많은 사용자들이 쉽게 접근할 수 있는 장점을 가지고 있다. 제안 기법은 온라인 교육이나 전자 책, 지능형 교육 시스템, 다양한 가상환경에도 쉽게 확대 적용될 수 있을 것으로 기대된다.

• Journal of the Korea Society of Computer and Information
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• v.13 no.3
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• pp.211-224
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• 2008

Occurrences of large-scale food-related mishaps around the globe are degrading the safety and confidence on food items. This can be said to result from problems such as information asymmetry between the supplier and the consumer(information user). It makes it difficult to confirm product-related information including who produced an item how, what manufacturing process was involved, and how the product was distributed, and deal with a food-related trouble. The research verified and analyzed what has an effect on the intention to use Traceability System when the user uses information service.