• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2009년도 IWAIT
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• pp.373-375
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• 2009

This paper introduces the concept of Tangible Shopping conducting in virtual world. The main idea of this paper is to combine the concept of web 2.0 mashup into shopping activities in virtual world. Feature of annotation and web browsing are also included in this concept. This research aims to enhance web shopping activities from the conventional approach into new way which deliver tangible shopping experiences to users. At the beginning, we review the state-of-the-art of virtual worlds and Web 2.0 Mashup. Next, we review our related work. Then, we address the design and implementation of tangible shopping in virtual worlds.

• Journal of the Korean Data and Information Science Society
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• 제14권4호
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• pp.1083-1090
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• 2003

Web-based learning is currently an active area of research and a considerable number of studies have been conducted on its application in the learning environment. However, in spite of many advances in the research and development of the educational contents, questions about how the environment affects learning remains largely unanswered. In this article, we propose a Web-based learning environment to improve the educational effect. The goal of this article is not to provide a complete system to support Web-based learning but rather to describe some meaningful strategies and fundamental design concepts that utilize information technologies to support teaching and learning.

• Journal of Information Processing Systems
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• 제9권2호
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• pp.217-236
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• 2013

Ranking thousands of web documents so that they are matched in response to a user query is really a challenging task. For this purpose, search engines use different ranking mechanisms on apparently related resultant web documents to decide the order in which documents should be displayed. Existing ranking mechanisms decide on the order of a web page based on the amount and popularity of the links pointed to and emerging from it. Sometime search engines result in placing less relevant documents in the top positions in response to a user query. There is a strong need to improve the ranking strategy. In this paper, a novel ranking mechanism is being proposed to rank the web documents that consider both the HTML structure of a page and the contextual senses of keywords that are present within it and its back-links. The approach has been tested on data sets of URLs and on their back-links in relation to different topics. The experimental result shows that the overall search results, in response to user queries, are improved. The ordering of the links that have been obtained is compared with the ordering that has been done by using the page rank score. The results obtained thereafter shows that the proposed mechanism contextually puts more related web pages in the top order, as compared to the page rank score.

• 대한가정학회지
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• 제45권8호
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• pp.127-142
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• 2007

The objective of this study was to discuss child privacy issues at Web sites targeting children, Specifically, the study examined l)types of information required for join the membership, 2)whether privacy policies at Web sites for children abide by privacy guideline, and 3)specific examples of recommendable privacy policy and problematic privacy policy from Web sites, Total of 305 Web sites targeting children were used for content analysis, Selected Web sites included recommended sites by Korea Council of Children's Organizations and food business Web sites, The results showed that more than 70% of Web sites required private information when children join the membership. Most of these Web sites provided mailing service for children. Generally, Web sites showed problems in parents' approval procedures. Also, privacy policies at Web sites frequently omitted purpose specification principle and the security safeguard principle. Regulating online service provides and marketers targeting children would be necessary for protecting child privacy. Further, education program targeting parents and children could help them make right choices to protect children's online privacy.

• 한국도서관정보학회지
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• 제33권2호
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• pp.235-258
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• 2002

최초의 웹 페이지가 인터넷 상에 올려진 1991년 이래, 인터넷 상의 무수한 웹 사이트 정보검색은 전통적 색인작성 방법과는 상이한 새로운 방법을 개발하고 있다. 본고는 새롭게 발전하는 웹 색인작성에 관한 기초연구로서, 그의 기초가 되는 삽입색인을 살펴보고, 웹 사이트의 정보제공을 위해 필수적인 메타 태그와 웹 색인을 위한 그들의 작성방법을 검토하고, 웹 색인작성에 관한 주요사항을 비교적 상세하게 연구검토하였다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2007년도 한국컴퓨터종합학술대회논문집 Vol.34 No.1 (D)
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• pp.384-388
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• 2007

WebDAV(Web-based Distributed Authoring and Versioning)는 웹 기반의 분산 저작과 버전관리를 지원하는 표준 명세로서, 인터넷을 통하여 다양한 콘텐츠의 비동기적인 협업을 지원하는 표준 하부구조를 제공한다. 특히 WebDAV의 속성 관리 기능은 자원의 주요 정보를 속성으로 설정하여 관리할 수 있는 기능이다. 이러한 WebDAV의 속성 관리기능을 이용하는 경우 사용자 측에서 자유롭게 속성관리가 가능하여 웹을 기반으로 하는 협업시스템 및 자원공유 시스템을 개발하는데 매우 유용하게 활용될 수 있다. 본 논문에서는 웹을 통한 문서 및 데이터의 관리를 제공하는 응용시스템의 개발을 효율적으로 지원할 수 있도록 한 WebDAV 프로토콜의 확장과 이를 이용하여 기업내에서 생성되는 기술문서 및 도면 문서에 대한 협업을 지원해주는 도면공유시스템을 개발하였다. 확장된 WebDAV의 기능을 이용하는 경우 응용시스템 개발자는 사용자 속성을 정의함으로써 어플리케이션을 간편하게 설계할 수 있게 되며, 기존의 웹 서버에서는 복잡하게 구현해야했던 자원에 대한 잠금관리 및 버전관리 기능도 지원받을 수 있게 된다.

• Journal of Information Processing Systems
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• 제9권3호
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• pp.395-404
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• 2013

In order to classify a web page as being benign or malicious, we designed 14 basic and 16 extended features. The basic features that we implemented were selected to represent the essential characteristics of a web page. The system heuristically combines two basic features into one extended feature in order to effectively distinguish benign and malicious pages. The support vector machine can be trained to successfully classify pages by using these features. Because more and more malicious web pages are appearing, and they change so rapidly, classifiers that are trained by old data may misclassify some new pages. To overcome this problem, we selected an adaptive support vector machine (aSVM) as a classifier. The aSVM can learn training data and can quickly learn additional training data based on the support vectors it obtained during its previous learning session. Experimental results verified that the aSVM can classify malicious web pages adaptively.

• Journal of Information Science Theory and Practice
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• 제8권4호
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• pp.6-19
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• 2020

The objective of this research is to analyze which functions make up web-based as well as mobile social media services and messengers. Services are clustered by their functionality. A total of 640 individual functions were identified, while investigating altogether 44 selected services in their web and mobile versions. Applying content analysis, functions were assigned to the services. The services were ranked by the number of implemented functions, and the functions were ranked by their occurrence in the services. Cluster analysis was applied to classify the services according to their functionality. Facebook and VKontakte were found to be the ones with the most functions; the most frequently implemented functions are support, profile, and account-related. Cluster analysis revealed six classes for mobile and seven classes for web applications. There is a noteworthy difference regarding the functionality scope between web and mobile applications of the same services. An example for this is Mendeley with 38 functions in the mobile and 91 functions in the web version. This is the first empirical attempt at clustering social media services based on their functionality.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 하계학술대회 논문집 G
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• pp.2252-2254
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• 1998

As the state of the art for handling multimedia on the internet is developed a new system called WebCAM which services video and image came out. However, WebMIC site for audio services are still rare. In this work, we developed a WebMIC system which enables anyone to listen audio in real-time through the internet. WebMIC system is implemented by connecting a server with a microphone and the recorded audio files are stored in a Database system. Because the microphones can be distributed sporadically, the developed system can be utilized for managing and advertizing a location. It also can be used to reduce the cost for the existing management system which is almost met by personnel expenses. Anyone who can connect to the internet can get this WebMIC service, so this system can produce a good effect if used in advertising any tourist resort.

• 한국문헌정보학회지
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• 제51권1호
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• pp.227-243
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• 2017

This study proposed a structural and semantic framework for the characterization of events and segments in Web videos that permits content-based searches and dynamic video summarization. Although MPEG-7 supports multimedia structural and semantic descriptions, it is not currently suitable for describing multimedia content on the Web. Thus, the proposed metadata framework that was designed considering Web environments provides a thorough yet simple way to describe Web video contents. Precisely, the metadata framework was constructed on the basis of Chatman's narrative theory, three multimedia metadata formats (PBCore, MPEG-7, and TV-Anytime), and social metadata. It consists of event information, eventGroup information, segment information, and video (program) information. This study also discusses how to automatically extract metadata elements including structural and semantic metadata elements from Web videos.