• The KIPS Transactions:PartD
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• v.15D no.3
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• pp.429-440
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• 2008

Formal Concept Analysis (FCA) is a widely used methodology for data analysis, which extracts concepts and builds a concept hierarchy from given data. A concept consists of objects and attributes shared by those objects, and a concept hierarchy includes information on super-sub relations among the concepts. In this paper, we propose a method for extracting Implication and Association rules from a concept hierarchy given a query by a user. The method also describes a way for displaying the extracted rules. Based on this method, we implemented an automatic tool, QAG-Wizard. Because the QAG-Wizard not only elicits relation information for the given query, but also displays it in structured form intuitively, we expect that it can be used in the fields of data analysis, data mining and information retrieval for various purposes.

• Science of Emotion and Sensibility
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• v.14 no.4
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• pp.581-592
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• 2011

In this research, a study on a shopping web site design for elderly users is performed in order for them to purchase silver products easily. Issues discussed in this study are the menu design in the product-searching stage, the method of image placement and the method of instruction offering in the product-selecting stage, and the way of payment in the purchasing stage of products. Firstly, the present conditions of domestic shopping web sites for silver products were investigated and the evaluation models were designed and developed. With these developed models, a test group of 61 elderly users were given a task of searching for and purchasing a blood pressure gauge (sphygmomanameter). Afterwards, a comprehensive survey and an in-depth interview on their preferences concerning the web site design proposed. Based on the results of the preference study, a convenient and comfortable shopping web site design for elderly users is proposed when they purchase silver products through internet.

• Journal of Korean Library and Information Science Society
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• v.43 no.1
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• pp.123-141
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• 2012

The purpose of this study is to examine the possibility of using the WorldCat, an International Union Catalog operated by OCLC as a tool for analyzing the trend of knowledge distribution in libraries around the world. In this study, four subject keywords, that is, Korea, Korean, Japan, and Japanese, were used to search materials related to Korea and Japan, and four facets, including medium, genre, language, and user level, were used to categorize search results from the WorldCat. The result shows that information resources related to Korea held by libraries around the world are only a little more than a third of Japan-related information resources. Especially Korea-related information resources for juveniles are less in numbers and lack in diversity in languages, media and genres, when compared with Japan-related information resources. Also an examination of two bibliographic records demonstrates that viewpoints expressed in user contributed reviews might affect diffusion of knowledge on certain subjects in the Next Generation Library Catalog.

• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.219-228
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• 2014

The purpose of this study was to determine the trends of research on the effects of psychosocial intervention related to children with epilepsy. 454 articles were retrieved from databases (Ovid-MEDLINE, EMBASE, PubMed, CINAHL, The Cochrane library, KMbase, and Koreamed), and 7 articles met our criterias. Interventions were classified into four categories: education; counseling; cognitive-behavioral therapy; and physical activity. The target outcomes of the interventions were quite diverse. Each intervention showed some benefits for epilepsy-related health outcomes, but each study had methodological weaknesses, including incomplete information, poorly defined or validated outcome measures, small sample sizes, and design limitations.

• Journal of the Korean Association of Geographic Information Studies
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• v.10 no.1
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• pp.183-193
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• 2007

Geotechnical Information Database Project was began by Ministry of Construction Transport at the 1999, because many people need a sharing and reusing the geotechnical report in construction process. In the beginning, target was report of national highway construction, the whole of country has been target on since the 2005. Today, the 60,581 number of geotechnical data(counted by boring number) is maintained. In this study, Geotechnical Information Distribute System(GIDS) was developed, in order to improve practical use and to be connected to National Geographic Information Center. and program to be applicable to construction was suggested. GIDS is able to search/download geotechnical report with digital map by internet. This system is consisted of geotechnical data and metadata editor, registration tool, and web system. We expect that GIDS make a effect to improve geotechnical data management and to be use in all part of construction process.

• Journal of Digital Convergence
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• v.18 no.11
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• pp.195-205
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• 2020

As the use of the Internet has become more common worldwide, digital marketing has gained a great weight as an advertising medium. Low cost and effective digital marketing tools include websites, eyes, blogs, search advertisements, online banners, mailings, YouTube, etc., which most companies around the world use one or more of them for digital marketing. I have. In this environment, global companies with more than one overseas subsidiary have become very interested in how to establish and implement digital marketing strategies. However, many studies have been conducted on the necessity of digital marketing and its implementation strategy, but there are no studies on specific implementation methods that can be applied in practice. Therefore, in this study, we intend to define digital marketing suitable for global SMEs, establish a promotion strategy model, and present a specific implementation strategy establishment planl. Through this, we intend to contribute to establishing a general-purpose SME global digital marketing strategy.

• The Journal of Korean Association of Computer Education
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• v.6 no.1
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• pp.55-63
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• 2003

Elementary schools and middle schools currently manage their student data by using the education administration system. One of its sub-systems called 'the academic affairs support system' is especially dedicated to handle school and academic affairs data. By allowing simple data search and statistical data calculations, it helps teachers easily integrate and manage education information resources. However, it is not easy for teachers to analyze the correlations among student data. In this paper, we showed by examples that a lot of meaningful information can be extracted by analyzing the relations among student data. Based on the results, we designed and implemented SIMS as a tool to provide teachers with such services. SIMS makes use of Association Rules for data correlation analyses. SIMS can be used in connection with the academic affairs support system, and is much easier to use than previously developed commercial products for similar services.

• Journal of KIISE:Software and Applications
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• v.37 no.12
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• pp.919-927
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• 2010

Since the performance of mobile devices is recently improved, the requirement of information retrieval is increased in the mobile devices as well as PCs. If a mobile device with small memory uses a tradition language analysis tool to extract nouns from korean texts, it will impose a burden of analysing language. As a result, the need for the language analysis tools adequate to the mobile devices is increasing. Therefore, this paper proposes a new method for noun extraction using post-noun morpheme sequences and noun patterns from a large corpus. The proposed noun extractor has only the dictionary capacity of 146KB and its performance shows 0.86 $F_1$-measure; the capacity of noun dictionary corresponds to only the 4% capacity of the existing noun extractor with a POS tagger. In addition, it easily extract nouns for unknown word because its dependence for noun dictionaries is low.

• Journal of the Korean Society for information Management
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• v.21 no.3
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• pp.203-225
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• 2004

This study is to investigate the characteristics of the Invisible Web and many search services designed to serve as gateways to the Invisible Web and to evaluate searching the Invisible Web in the Services. The four services for searching the Invisible Web were selected to search the Invisible Web with 11 queries, that are Google as portals, ProFusion and Search.com as Invisible Web meta search engines, and IncyWincy as Invisible Web search engines. It was found that the effectiveness of Google's Invisible Web searching was better compared with the three Invisible Web search tools but the difference between the four systems was not significant((${\alpha}$=.055) The Invisible Web meta searching was better than the Web meta searching in the three search tools at the statistically significant level. The effectiveness measurement based on the ranks and relevance degree(quality) of relevant documents retrieved seemed appropriate to the ranked search results.

• Journal of the Korean association of regional geographers
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• v.12 no.2
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• pp.281-290
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• 2006

Map uses graphic language of dot, line and area to represent surface of the earth. Map has been adopted as tools for regional and cartography learning to improve graphicacy in geography education. Due to the rapid development in GIS and internet, practical use of maps has been extended in various study area. This Study is to develope web-based leaning materials for self-controled geography instruction. As learning materials for this aim, it has been constructed WebGIS for topography and thematic maps with boundary map of Chungbuk, digital map of Jochiwon(1:25,000), statistic data and field images. Function of WebGIS intend to improve skills on geo-information collection and spatial query, regional difference of spatial distribution. Individual learning using internet can make an improvement of learner centeredness and problem-solving. Finally, it will be expected to be suggest one of the education guide as blueprint in info-society.