• Journal of Digital Convergence
• /
• v.20 no.2
• /
• pp.217-223
• /
• 2022

Subspace clustering for online data streams requires a large amount of memory resources as all subsets of data dimensions must be examined. In order to track the continuous change of clusters for a data stream in a finite memory space, in this paper, we propose a grid-based subspace clustering algorithm that effectively uses memory resources. Given an n-dimensional data stream, the distribution information of data items in data space is monitored by a grid-cell list. When the frequency of data items in the grid-cell list of the first level is high and it becomes a unit grid-cell, the grid-cell list of the next level is created as a child node in order to find clusters of all possible subspaces from the grid-cell. In this way, a maximum n-level grid-cell subspace tree is constructed, and a k-dimensional subspace cluster can be found at the k^th level of the subspace grid-cell tree. Through experiments, it was confirmed that the proposed method uses computing resources more efficiently by expanding only the dense space while maintaining the same accuracy as the existing method.

• 한국디지털정책학회:학술대회논문집
• /
• 2003.12a
• /
• pp.551-568
• /
• 2003

이러닝은 지식 정보 사회에서 온라인 상에서 이루어지는 여러 산업 중에서 가장 각광 받고 있는 산업의 하나로, 점차 그 잠재적 성장 가능성을 인정받고 있다. 초고속 인터넷 인프라와 높은 교육열을 가진 우리나라는 이러닝 선진국이 되기 위한 하드웨어와 그것을 운용할 인적자원에 대한 기본적인 준비는 갖춘 상태라 하겠다. 하지만 그런 우수한 하드웨어와 인적자원만으로는 이러닝의 성공을 보장할 수 없다는 것은, 인간과 하드웨어를 연결하고 두 요소간에 혈액 같은 흐름을 맡게 될 소프트 스킬, 즉 교수 설계, 컨텐트 개발과 학습 운영 등에 대한 준비가 충분히 되었는가에 대한 의문이 나타나기 때문이다. 본 고에서는 차세대 성장 동력 사업의 하나라고 지목되고 있는 이러닝이 성공적으로 자리를 잡아가고, 나아가 국제 경쟁력을 갖추기 위해 요구되는 과제들이 무엇인가를 도출하고자 현재 이러닝의 실시 현황을 살펴보고, 국내외 성공적인 사례와 선진 동향에서 교훈을 찾아내었고 국가적 차원에서 성장 동력 사업으로 시급히 검토되어야 할 문제들로 보이는 항목들에 대해 살펴보았다. 무엇보다 이러닝의 지속적이고 안정적인 성장을 위해서는 전문 인력의 육성이 시급하다고 보며 협의의 이러닝 (학습 매체)이 아닌 광의의 이러닝 (성과 매체)으로 거듭 나야 함을 주장하고 있다.

• The Journal of the Korea Contents Association
• /
• v.11 no.9
• /
• pp.254-266
• /
• 2011

Wired and mobile Internet has led to increase in online broadcasting content market size. In particular, the fast-growing smart devices like smart phone and tablet PC in mobile Internet market has accelerated the growth of online broadcasting content service market. Meanwhile, the illegal distribution of online broadcasting content has been widespread in this market. There are also significant transaction costs, search costs, contracting and coordination costs in online broadcasting content market. MCP(Master content provider) which is a content distributor has been playing a critical role in preventing illegal content distribution, reducing costs and removing inefficiencies of online broadcasting content market. Thus, the purpose of this study is to investigate the competency of MCP to streamline the online broadcasting contents market from the resource- based view. And this study conducted a case study to explain the status of online broadcasting content market and define what kinds of problems and issues are there in the market in a systematic way. The case study also showed how MCP competency plays an important role in reducing administrative and transaction costs and in solving illegal content distribution and other inefficiencies of the online broadcasting contents market.

• Journal of Digital Convergence
• /
• v.10 no.9
• /
• pp.165-174
• /
• 2012

In recent years, online brand community has become an important means for firms to make, maintain and improve their relationship with the customer. Customers or would-be customers discuss, learn about the products and share passion together. In this paper, we investigate the effects of the online brand community's characteristics and its perception on customer royalty to the community and purchase intention of consumers for the products. Variables of online brand community's characteristics include community reputation, social presence, pleasure, and interactivity. For those of the community's perception, we consider membership, influence, emotional band, and fulfillment of desire. Findings show that the online brand community has indeed positive effects on the brand equity by enhancing the relation between consumers and brand, ultimately providing firms with strategic resources and competitive advantage. Managerial implications are discussed.

• The KIPS Transactions:PartD
• /
• v.16D no.5
• /
• pp.651-660
• /
• 2009

This study is to develope the structures and the elements of the metadata for harvesting, management and preservation of a valuable web resources in the web archiving. For this study, we investigated the available metadata in the web archiving and surveyed the requirements of web archiving process. And we analyzed the characteristics of web resources. Also, this study was used a based on the ISO 14721 OAIS Reference Model. Finally, to share the metadata elements among the web archiving system, this study considered the interoperability for the exchange of the metadata. Based on the result, this study designed four structures of the metadata and defined the 28 core metadata elements for the web archiving.

• The Journal of the Convergence on Culture Technology
• /
• v.7 no.1
• /
• pp.75-81
• /
• 2021

With the development of advanced information and communication technology, Generation Z, familiar with digital culture, is drawing keen attention as a major consumer of the fashion industry. In this study, casual wear for Generation Z, who is proficient in digital devices and prefers information acquisition and lifestyle over the Internet, was designed using 3D virtual simulation and developed into four looks: Gulish, Sportive, Easy and Contemporary. The use of simulation of 3D virtual clothing in costume design can build digitalization of future fashion industry through convergence with digital fashion design planning and production process in fandemic environment and strengthen online platform distribution. In a business environment that continues to innovate to enhance work efficiency by introducing an Untouch fashion production system, the use of 3D virtual clothing technology can increase the efficiency of sustainable management through 3D sample production, online fitting, modification, and final critic processes to reduce the time and cost of human and physical resources and review.

• Journal of Digital Convergence
• /
• v.13 no.10
• /
• pp.483-490
• /
• 2015

The purpose of this study was to systematically organize the information for the regional resources from the agricultural management entities of convergence industry in Chungcheongnam-do. The target was the Sixth Agricultural Industry Association in Chungcheongnam-do; total 70 kinds of resources were investigated. The content was organized by name of regional source, introduction, photo, company and product information, feature of product, introduction of experience program, and etc., containing the value and meaning of products in stories of the regional sources and images. The material was organized in order of grains, fruits and vegetables, marine products, livestock, Korean sauces Kimchi, fermented broth concentrates, beverages tea, and other. It was saved as pdf file to distribute to the members; it may be utilized for online promotion, product promotion in exhibition festival sales promotion, posts for bulletin board hall, and etc. but also for promotional material in overseas marketing after translating to each language.

• Journal of Digital Convergence
• /
• v.20 no.2
• /
• pp.47-56
• /
• 2022

With the advent of online platforms, individuals have been able to trade small resources, such as a room, in the market. However, as there is no clear regulation on these economic activities, various side effects have emerged. Accordingly, the government reestablished related policies to resolve the unintended consequences of these economic activities. However, the policy has not been implemented yet, and many participants do not comply with the policy. Therefore, this study intends to examine their perceptions in detail. For this purpose, a text mining technique was applied. Posts and comments from major online communities were collected. By applying the topic modeling technique, 5 topics were derived. Compliance with the government's policy is a voluntary decision. Therefore, it is necessary to carry out an in-depth understanding of the policy target. Therefore, based on this study, it is expected that in the future, methods to induce them to conform to policy can be discussed in detail.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2008.06a
• /
• pp.317-323
• /
• 2008

21세기에 들어서면서 컴퓨터와 인터넷의 급격한 발달은 인류의 정치 경제 사회 문화의 모든 트랜드를 바꿔 놓고 있다고 해도 과언이 아니다. 그 결과 아날로그와 오프라인의 시대에서 이제는 디지털과 온라인의 시대로 우리의 생활 중심이 옮겨가고 있다. 자원이 부족한 우리나라는 정보화측면에서는 선진국으로 평가받고 있으며, 이를 토대로 CT(Cultural Technology)를 국가전략분야로 육성해나가고 있는 등 세계화시대 및 문화산업시대의 도래와 함께 부가가치의 창출을 극대화할 수 있는 분야로 주목하고 있다. 그러나 디지털 강국인 우리나라에서는 정보화촉진기본법 등의 제정을 통하여 자료의 디지털 화에만 엄청난 예산을 쏟아 붓고 있다. 하지만 이제는 그보다 더 중요한 정보의 활용 즉, 활성화 측면에 관심을 가져야 할 때이다. 활성화되지 못한 디지털 자료는 땅속에 묻혀있는 오래된 유물과도 같다. 본 연구에서는 디지털 전통문화 콘텐츠 중에서도 특히 디지털화가 가장 용이하며, 활성화의 가능성이 가장 높은 디지털 전통음악 콘텐츠의 활성화를 위한 문제점과 이를 해결하기 위한 방안을 모색하였다.

• The Journal of the Korea Contents Association
• /
• v.21 no.11
• /
• pp.224-233
• /
• 2021

The aim of this study was to describe how a teacher used technologies to improve underserved student's learning in a low-resourced rural elementary classroom and provide implications for teachers' use of technology. The in-depth case study was conducted in a one-student classroom setting that isolated the fifth grader from social and collaborative learning opportunities. The qualitative data was collected in forms of classroom observation field notes, teacher interviews, student interviews and student's reflection journals. Findings are as follows: First, technology partakes an import role in a one-student classroom to support student's collaborative learning. Second, to overcome a digital divide, the teacher created a technology-enhanced environment with alternative methods of her own and supplemented teacher-created resources. Third, the teacher used technologies to support adaptive instruction based on student's needs.