• Proceedings of the Korea Inteligent Information System Society Conference
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• 2007.05a
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• pp.229-238
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• 2007

This study was intended to point out the limit of existing digital content-centered studies, or approaches from the viewpoint of the supplier and in the aspect of business profit model and find ways to assess the quality of digital content, considering the characteristics of digital content. For this, the study is to apply value innovation strategy to digital content assessment, to analyze the applicability, and to propose a new and practical framework for digital content assessment method. To this end, this study selected the global No. 1 search service provider Google and local portal site Naver search service. The study on assessment factors by value innovation strategy was based on existing literature, while user-value elements in that respect were confined to information quality, interactivity, communication, interactive storytelling, and usability. This study objectified the relation with the value innovation strategic analysis, through qualitative and quantitative analyses on value elements of search service users.

• Proceedings of the Korean Society for Information Management Conference
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• 2010.08a
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• pp.33-40
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• 2010

인터넷 포털 사이트는 단순한 검색엔진을 넘어 네티즌들이 항해하는 사이버스페이스 그 자체를 의미할 정도로 영역과 개념이 확대되었다. 일반인들뿐만 아니라 전문 연구자도 필요로 하는 학술정보를 포털 사이트에서 서비스하기 때문에 포털 사이트를 많이 이용한다. 그 동안 포털의 검색은 얼마나 많은 정보를 검색 결과로 제시해 줄 것인가 하는 양적인 면에 관심을 두었다. 그러나 최근에는 검색의 질적인 측면에 보다 많은 관심이 주어지고 있다. 이 논문은 포털에서 제공하는 전문 학술정보 검색의 문제점을 제시하고, 주제어 사전 서비스와 연계하여 보다 신뢰성 높은 학술정보를 검색할 수 있게 하기 위한 시범적인 시도이다. 즉, 검증되고 압축적으로 정리된 사전의 표제어와, 해당 표제어를 키워드로 하는 권위있는 연구 성과를 같이 연계시킴으로써, 사전을 검색할 때 연구 성과까지 검색할 수 있게 하여, 검색의 효율성과 정보의 신뢰성을 높일 수 있는 방안을 제시하고자 하였다.

• Journal of Intelligence and Information Systems
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• v.9 no.2
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• pp.87-100
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• 2003

In managing organizational tacit knowledge, recent researches have shown that it is more applicable in many ways to provide expert search mechanisms in KMS to pinpoint experts in the organizations with searched expertise. In this paper, we propose an intelligent expert search framework to provide search capabilities for experts in similar or related fields according to the user′s information needs. In enabling intelligent expert searches, Fuzzy Abstraction Hierarchy (FAH) framework has been adopted, through which finding experts with similar or related expertise is possible according to the subject field hierarchy defined in the system. To improve FAH, a text categorization approach called Vector Space Model is utilized. To test applicability and practicality of the proposed framework, the prototype system, "Knowledge Portal for Researchers in Science and Technology" sponsored by the Ministry of Science and Technology (MOST) of Korea, was developed.

• Journal of the Korean Society for information Management
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• v.24 no.4
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• pp.323-344
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• 2007

The objective of this study is to move the initiative of children's electronic books from portal sites to libraries and to help improving libraries' information services through their systematic study. The present use state of an e-book site for children that is currently serviced by A-academic library was mainly analyzed for the study. The desirable acquisition policies were also suggested for the activation of the juvenile e-book services for libraries.

• Proceedings of the Korean Society for Information Management Conference
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• 2006.08a
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• pp.63-70
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• 2006

이용자중심의 정보기술이 발전하면서 웹 2.0이라는 개념이 등장하고 이용자가 정보를 조직하는 사회적 태깅 방식의 웹사이트가 확산되고 있다. Connotea와 CiteULike는 웹 2.0이라는 개념의 일부인 사회적 태깅 방식을 학술영역에 본격적으로 도입한 최초의 서비스로서, 과거의 통제어휘 위주의 디렉토리 분류체계를 벗어나 이용자들이 참여하여 제공한 정보와 협력하여 부여한 키워드를 중심으로 자유롭게 콘텐트를 분류하고 관리하는 정보공유 포털서비스이다. 이 글에서는 이와 같은 이용자 참여를 유도하는 정보서비스동향을 개관하고 Connotea와 CiteULike의 두 서비스를 비교해보았다.

• International Commerce and Information Review
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• v.10 no.3
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• pp.101-116
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• 2008

Future e-Trade RFID/USN distribution should satisfy the new needs of reasonable customers such as efficient supply of goods, presentation of information, and communication by developing intermediate and long-term strategies through analysis of industrial conditions and customers' needs. Through preferential application of new technology, knowledge-based e-Trade RFID/USN distribution environment and DB of industrial portal sites should be developed, RFID/USN infra such as Supply Chain Management(SCM) should be expanded, future-oriented knowledge-based services should be developed to prepare specific and realistic plans for proper UT(Ubiquitous Technology). Such change in e-Trade distribution environment should have historical and environmental backgrounds to suggest specific tasks and directions as a conversion of structural concept of engineering and trade theory for new u-Trade. Accordingly, this study is to present all the problems available in RFID/USN distribution, develop an organized and technological estimate model and provide a foundation to apply it efficiently. This study aims to present an interpretational foundation of RFID/USN distribution, rather than technical directions.

• Annual Conference of KIPS
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• 2003.11b
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• pp.1325-1328
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• 2003

구성원들이 직접 정보를 제공하고 책임지는 정보 실명제를 기반으로 모든 구성원이 손쉽게 정보를 제공할 수 있도록 CMS(Contents Management System) 형태의 UIP(University Information Portal) 시스템을 구축하였다. 또한 UML(Unified Modeling Language)과 CBD(Component Based Development) 개발 기법을 적용하여 UIP 시스템에서 사용되었던 컴포넌트들을 다른 웹 기반 시스템에서도 손쉽게 사용할 수 있도록 하여 개발 코드를 재사용 할 수 있도록 하였다.

• Asia pacific journal of information systems
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• v.13 no.1
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• pp.171-195
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• 2003

Providers for the commercial web sites are seriously competing for attraction and retention of customers. However, customer loyalty in the on-line business could be determined by factors different from those in the off-line business. In this paper, determinants for the customer loyalty in the on-line business are analyzed as two parts. The first part includes determinants that foster voluntary customer loyalty, such as satisfaction, self-involvement, and positive characteristics of Internet. The second part includes determinants that foster involuntary customer loyalty, such as switching barrier and bonds. Through the empirical study of 399 survey of Korean Internet users, both voluntary and involuntary factors contributing to the customer loyalty were found. Also, relationship between the positive characteristics of Internet and customer loyalty were found. The understanding of the determinants of customer loyalty will be an important information developing a winning strategy in the on-line business.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.9 no.8
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• pp.3169-3181
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• 2015

Nowadays, online word-of-mouth has become a powerful influencer to marketing and sales in business. Opinion mining and sentiment analysis is frequently adopted at market research and business analytics field for analyzing word-of-mouth content. However, there still remain several challengeable areas for 1) sentiment analysis aiming for Korean word-of-mouth content in film market, 2) availability of machine learning models only using linguistic features, 3) effect of the size of the feature set. This study took a sample of 10,000 movie reviews which had posted extremely negative/positive rating in a movie portal site, and conducted sentiment analysis with four machine learning algorithms: naïve Bayesian, decision tree, neural network, and support vector machines. We found neural network and support vector machine produced better accuracy than naïve Bayesian and decision tree on every size of the feature set. Besides, the performance of them was boosting with increasing of the feature set size.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.253-255
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• 2005

최근 생물학 문제를 해결하기 위하여 생명 정보 분야에서 많은 컴퓨터 기술들이 응용되고 있다. 플라보노이드 정보는 항암, 항산화 효과가 있는 유용한 물질인 플라보노이드의 연구와 관련된 정보를 분석하고 관리하는 컴퓨터 기술 기반의 응용 기술이다. 현재 플라보노이드 정보 관련 연구는 일부에서 수행되고 있으며 플라보노이드의 다양한 정보를 효율적으로 저장 검색 할 수 있는 시스템은 부족한 실정이다. 플라보노이드 물질에 관한 정보를 더욱 효과적으로 저장 관리하고 관련된 연구자들 간에 정보를 쉽게 공유할 수 있도록 본 논문에서는 플라보노이드 정보를 위한 그리드 웹 포탈 시스템 구조와 관련된 데이타 모델을 제안한다. 본 논문에서 제안한 시스템과 데이타 모델의 유용함을 보이기 위해 웹 기반으로 플라보노이드 정보 그리드 포탈을 구현한다.