• 한국정보과학회논문지:소프트웨어및응용
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• 제33권8호
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• pp.703-717
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• 2006

시맨틱 웹은 컴퓨터가 처리 가능한 의미 정보를 표현하고 공유할 수 있는 보편적인 매체를 개발하는 것이 목적이며, 따라서 시맨틱 웹에서는 이러한 의미 정보를 표현하는 온툴로지를 웹에 배포하여 이용 가능하게 만드는 것이 매우 중요하다. 하지만 현존하는 대부분의 온톨로지 저작 도구는 웹이 아닌 환경에서 운용되기 때문에 작성된 온톨로지를 바로 웹에 배포할 수 없으며 온톨로지를 여러 사람이 공동으로 저작할 수 없다는 단점이었다. 이 논문에서는 위키 (Wiki)를 이용하여 온톨로지를 쉽게 웹에 배포할 수 있고 온툴로지 생성과 공유를 용이하게 해주는 기반구조를 제안한다. 위키는 사람을 대상으로 하는 지식 공동 저작과 공유를 위한 기반 구조 중 하나로서 웹에서 운용되며, 위키의 내용은 웹 문서 서식을 위한 간단한 마크업 언어와 자연어로 구성된다. 이 논문은 보다 용이한 온톨로지 생성과 공유를 위해 기존의 위키 시스템에 시맨틱 웹 요소를 추가하여 인간을 위한 지식 공동 저작과 공유를 위한 시스템인 통시에 에이전트 소프트웨어도 쉽게 접근하여 온툴로지 정보를 얻을 수 있는 시맨틱 웹 기반 구조를 제안하였으며 이를 통해 시맨틱 조회, 시맨틱 탐색, 시맨틱 질의를 실현하고자 하였다.

• 인터넷정보학회논문지
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• 제2권1호
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• pp.13-21
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• 2001

본 논문에서는 인터넷상에 연결된 유휴자원을 이용한 분산 웹 환경에서 각 시스템 상에 저장된 지식을 공유·재이용 하기 위한 온톨로지 다중화 연구를 수행한다. 온톨로지의 다중화란 동일지식에 의하여 구축된 온톨로지를 다른 온톨로지와 지식공유가 가능하도록 변환하는 것이다. 본 연구에서는 이러한 분산웹 온톨로지 다중화 시스템을 구성하기 위하여 분산웹 환경구축방안과 함께 지식의 공유 및 재 이용을 위한 다중 온톨로지 구성이라는 두 가지 관점 하에서 접근한다. 구성된 시스템은 지니기술을 이용하여 이기종간의 확장성과 효율성을 지닌 웹 컴퓨팅환경을 구축하였고, 또한 분산작업을 통하여 분산 웹 환경 하에서의 다중 온톨로지간의 실질적인 지식변환과정이 잘 전개됨을 볼 수 있다.

• Journal of Information Science Theory and Practice
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• 제6권2호
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• pp.46-61
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• 2018

The mobile social networking application Instagram is a well-known platform for sharing photos and videos. Since it is folksonomy-oriented, it provides the possibility for image indexing and knowledge representation through the assignment of hashtags to posted content. The purpose of this study is to analyze how Instagram users tag their pictures regarding different kinds of picture and hashtag categories. For such a content analysis, a distinction is made between Food, Pets, Selfies, Friends, Activity, Art, Fashion, Quotes (captioned photos), Landscape, and Architecture image categories as well as Content-relatedness (ofness, aboutness, and iconology), Emotiveness, Isness, Performativeness, Fakeness, "Insta"-Tags, and Sentences as hashtag categories. Altogether, 14,649 hashtags of 1,000 Instagram images were intellectually analyzed (100 pictures for each image category). Research questions are stated as follows: RQ1: Are there any differences in relative frequencies of hashtags in the picture categories? On average the number of hashtags per picture is 15. Lowest average values received the categories Selfie (average 10.9 tags per picture) and Friends (average 11.7 tags per picture); for highest, the categories Pet (average 18.6 tags), Fashion (average 17.6 tags), and Landscape (average 16.8 tags). RQ2: Given a picture category, what is the distribution of hashtag categories; and given a hashtag category, what is the distribution of picture categories? 60.20% of all hashtags were classified into the category Content-relatedness. Categories Emotiveness (about 4.38%) and Sentences (0.99%) were less often frequent. RQ3: Is there any association between image categories and hashtag categories? A statistically significant association between hashtag categories and image categories on Instagram exists, as a chi-square test of independence shows. This study enables a first broad overview on the tagging behavior of Instagram users and is not limited to a specific hashtag or picture motive, like previous studies.

• Journal of electromagnetic engineering and science
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• 제11권2호
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• pp.128-132
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• 2011

In interference tolerance based spectrum sharing systems, primary receivers (PRs) are protected by a predefined peak or average interference power constraint. To implement such systems, cognitive radio (CR) transmitters are required to adjust their transmit power so that the interference power received at the PR receivers is kept below the threshold value. Hence, a CR-transmitter requires knowledge of its channel and the primary receiver in order to allocate the transmit power. In practice, it is impossible or very difficult for a CR transmitter to have perfect knowledge of this channel state information (CSI). In this paper, we investigate the impact of imperfect knowledge of this CSI on the performances of both a primary and cognitive radio network. For fixed transmit power, average interference power (AIP) constraint can be maintained through knowledge of the channel distribution information. To maintain the peak interference power (PIP) constraint, on the other hand, the CR-transmitter requires the instantaneous CSI of its channel with the primary receiver. First, we show that, compared to the PIP constraint with perfect CSI, the AIP constraint is advantageous for primary users but not for CR users. Then, we consider a PIP constraint with imperfect CSI at the CR-transmitter. We show that inaccuracy in CSI reduces the interference at the PR-receivers that is caused by the CR-transmitter. Consequently the proposed schemes improve the capacity of the primary links. Contrarily, the capacities of the CR links significantly degrade due to the inaccuracy in CSI.

• 정보관리학회지
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• 제23권2호
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• pp.81-96
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• 2006

웹기반 학술정보 커뮤니케이션이 보편화되고 정보공급자 및 이용자와의 직접적인 커뮤니케이션이 확산되는 등 원문서비스 환경의 변화는 원문서비스 기관에 적지 많은 영향을 미치고 있다. 특히 웹을 통하여 이용자에게 원문을 제공하는 전자원문서비스의 등장은 전자형태 정보의 신속하고 용이한 복제 및 배포로 인하여 그 운영에 있어서 저작권과의 마찰을 피할 수 없다. 이 연구에서는 원문서비스 환경의 주요 변화와 동향을 검토하고, 해외 전자원문서비스 사례를 파악함으로써 국내 웹기반 원문서비스인 e-DDS가 국내 저작권법에서 이슈가 되는 부분 및 향후 해결해 나가야 할 부분들을 검토하고자 한다.

• 한국한의학연구원논문집
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• 제9권1호
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• pp.51-63
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• 2003

The international government committee is progressing their agreements about intellectual property protection of traditional knowledge(TK), gene resource(GR), folklore(FL) in WIPO. It is in the course of selection with precedence of TK, GR, FL in WlPO, focused on discussions about listing of TK documents, standardization of DB construction, sharing and profit distribution of GR. Their are disagreements between developed countries and underdeveloped countries about intellectual property protection agreements of TK, GR. The developed countries insist on using, the existing intellectual property protections, but the underdeveloped countries ask new ones on character of TK, GR, It causes intangible assets to be valuable trade properties in future world trade. We have to make national plans to face agreements about IP of TK, GR in WIPO with our own TK, GR. We must have a basic attitude about laying down these plans such as raising national economy, considering our TK, GR to be relics of mankind culture. In addition to these, it needs accurate analysis about agreements in WIPO, our TK, GR, scientific mechanical level and capital power.

• International Journal of Knowledge Content Development & Technology
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• 제8권4호
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• pp.55-74
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• 2018

Faculty advisors play a vital role in a learning and adjustment process of doctoral students at their work, department, university and discipline by sharing and exchanging relevant information and knowledge in the profession. Despite the important role of information practice in doctoral advising, few studies have investigated the informational aspects of faculty advisors and their students. Thus, this study aims to consider the distribution of information exchanged between faculty advisors and their doctoral students and relate them to doctoral students' demographic characteristics (gender, age, race and/or ethnicity, degree, and stage of doctoral work). The findings of this study show that overall information exchange is most frequent at the work level followed by the discipline, school/department, and university levels. In particular, information exchange at the work and discipline levels explains the characteristics of doctoral education, socializing students into both student and professional roles. In addition, there are statistically significant differences in information exchange along certain dimensions according to the advisee's gender, age, race and/or ethnicity, degree, and stage of doctoral study, suggesting that information needs and seeking behavior may vary according to the demographic characteristics of advisees.

• The Journal of Asian Finance, Economics and Business
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• 제7권7호
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• pp.425-438
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• 2020

The study investigates the factors influencing the innovation activities in the enterprises in the Binh Dinh Province, Vietnam. By employing the dataset from a survey in 200 typical enterprises in Binh Dinh and using the Exploratory Factor Analysis and regression analysis, we found that there are eight factor groups affecting the innovation activities of enterprises. They include management of innovation promotion; market research capacity; leadership inspiring innovation; culture of innovation; human resources for implementing innovation; network connection; disseminating/sharing knowledge; and impact of producing/serving technology. All these factors strongly affect the innovation activities, which plays an important role in promoting the sustainable development of the Vietnamese enterprises, with the statistical significance level at 1%. Moreover, findings also show that, among these factors, the market research capacity is the strongest determinant of the innovation activity in the enterprise. An increase of 1 point of capacity of market research will increase the innovation activities in the enterprise by 0.114 point. It is followed by the management of promoting innovation, leadership inspiring innovation, and disseminating and sharing knowledge, with 0.104, 0.103 and 0.102 score, respectively. On the other hand, network connection is the weakest factor, with the score of 0.07 point.

• 한국한의학연구원논문집
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• 제9권2호
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• pp.33-43
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• 2003

The international government committee is progressing their agreements about intellectual property protection of traditional knowledge(TK), gene resource(GR), folklore(FL) in WIPO. It is in the course of selection with precedence of TK, GR, FL in WIPO, focused on discussions about listing of TK documents, standardization of DB construction, sharing and profit distribution of GR. We made some plans to deal with agreements in WIPO. These plans consist of 5 subjects which are investigation about intellectual property related laws and systems, study of examination and finding, construction of DB information, development of value evaluation system, development of industrialization system with TK, GR, We suggest preceding details about 5 subjects respectively. It is the character of this plan that patent information DB system of TK, GR is the axis. It is the most important thing in these plans to succeed that we have to have connections with expert groups in order parts and government officials, taking whole supports of government because our traditional medical related study basis is weak.

• Asia pacific journal of information systems
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• 제8권3호
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• pp.51-73
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• 1998

This paper is to evaluate the application potentials of data mining in the areas of Supply Chain Management (SCM) and to suggest the architectures of Decision Support Systems (DSS) that support data mining activities. We first briefly introduce data mining and review the recent literatures on SCM and then evaluate data mining applications to SCM in three aspects: marketing, operations management and information systems. By analyzing the cases about pricing models in distribution channels, demand forecasting and quality control, it is shown that artificial intelligence techniques such as artificial neural networks, case-based reasoning and expert systems, combined with traditional analysis models, effectively mine the useful knowledge from the large volume of SCM data. Agent-based information system is addressed as an important architecture that enables the pursuit of global optimization of SCM through communication and information sharing among supply chain constituents without loss of their characteristics and independence. We expect that the suggested architectures of intelligent DSS provide the basis in developing information systems for SCM to improve the quality of organizational decisions.