• Journal of Environmental Health Sciences
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• v.43 no.5
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• pp.412-421
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• 2017

Objectives: To establish a system for integrated risk assessment of EDCs in Korea, infrastructure for providing toxicity data of ecological media should be established. Some systems provide soil ecotoxicity databases along with aquatic ecotoxicity information, but a well-structured ecotoxicity database system is still lacking. Methods: Aquatic and soil ecotoxicological information were collected by a toxicologist based on a human readable data (HRD) format for collecting ecotoxicity data that we provided. Among these data, anomalies were removed according to database normalization theory. Also, the data were cleaned and encoded to establish a machine-readable data (MRD) ecotoxicity database system. Results: We have developed a multi-purpose ecotoxicity database model focusing on EDCs, ecological species, and toxic effects. Also, we have constructed a web-based data searching system to retrieve, extract, and download data with greater availability. Conclusions: The results of our study will contribute to decision-making as a tool for efficient ecological risk assessment of EDCs in Korea.

• Journal of Internet Computing and Services
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• v.12 no.4
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• pp.119-133
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• 2011

With the advent of Web 2.0, the use of RESTful web services is expected to overtake that of the traditional SOAP-based web services. Recently, the growing number of RESTful web services available on the web raises the challenging issue of how to locate the desired web services. However, the existing keyword searching method is insufficient for the bad recall and the bad precision. In this paper, we propose a novel building semantic ontology method which employs both the clustering technique based on association rules and the semantic analysis technique based on patterns. From this method, we can generate ontologies automatically, reduce the burden of semantic annotations, and support more efficient web services search. We ran our experiments on the subset of 168 RESTful web services downloaded from the PregrammableWeb site. The experimental results show that our method achieves up to 35% improvement for recall performance, and up to 18% for precision performance compared to the existing keyword searching method.

• Journal of the Korean Society for Library and Information Science
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• v.44 no.1
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• pp.101-115
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• 2010

The main difference between web searching and traditional searching is that the web provides and supports multimedia searching. This study aims to investigate the multimedia searching behavior of users of NAVER, a major Korean search portal. In conducting this study, the query logs and click logs of a unified search service were analyzed. The results of this study show that among the multimedia queries submitted by users, audio searches are the dominant media type, followed similarly by video and image searches. On the other hand, among the multimedia documents clicked on, video is the most popular collection type followed by image and audio collections. Entertainment is the most popular topic in both multimedia queries and clicks. The results of this study can be implemented for the portal's development of multimedia content and searching algorithms.

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.216-220
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• 2008

오늘날 인터넷은 사용자에게 수많은 정보와 다양한 선택의 기회를 제공하지만, 사용자는 급속하게 늘어난 수 많은 정보 중에서 자신에게 유용한 정보를 찾는데 더 많은 시간을 투자해야만 한다. 이러한 문제점을 극복하고 좀 더 효율적인 인터페이스를 제공하기 위해서는 사용자들이 원하는 정보를 획득하기까지, 어떠한 탐색 과정을 거쳐 의사 결정을 내리는지에 관한 이해가 선행되어야 할 것이다. 따라서 본 연구는 웹 검색 결과를 소비하는 사용자의 정보 탐색 패턴과 이에 수반되는 인지 과정을 시선의 움직임을 통하여 분석하였다. 실험 결과 일반적인 글읽기 형태와는 차별된 시선의 움직임을 관찰할 수 있었는데, 대부분의 시선 이동 궤적은 직선이 아닌 도처에 걸쳐 흩어진 의미 단위로 드문드문 이동함을 알 수 있었다. 또한 각 의미 단위를 중심으로 진행성(forward) 도약과 역행성(regressive) 도약이 관찰되었고, 제목 ${\rightarrow}$ 내용 순의 세밀한 응시가 이루어진 이후 Click 여부가 결정되었다. 하지만 평균 Scan path 는 타이틀과 내용의 구분 없이 전체 화면 길이/너비의 50%를 넘지 못하여 축소된 Golden Triangle 형태를 보였다. 본 연구 결과는 웹 검색 결과에 대한 사용자 소비 경향의 특성을 파악하여 향후 좀 더 효율적인 소비를 이끌어내기 위한 인터페이스 설계 방향의 기초 연구로 그 의의가 있다.

• Journal of the Korean Society for information Management
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• v.22 no.4 s.58
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• pp.79-95
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• 2005

The alms of this study is to analyse the user's behavior, satisfaction, difficulties and selection of retrieval keywords for the use of Web-based OPAC in the College students. The methods of the questionnaire and the interview was applied to get the data and processed by using SPSSWIN 10.1. Several research results was proved the hypothesis such as differences between major subject of students in their fields. Furthermore, based on the result of this analysis, another purpose is to come up with the Improvements of functions prompting difficulties and answers to problems found in the Web OPAC, helping them to use the Web OPAC efficiently.

• Food Quality and Culture
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• v.3 no.2
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• pp.82-88
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• 2009

This study developed learning content and web pages providing information on Health/Functional Food (HFF) for consumers who come across information indiscriminately from a variety of advertising media such as the Internet and TV. After coming to an understanding of the current situation through literature review and fact-finding, we collected information and commercials on HFF that are exposed to consumers. Focusing on advanced countries such as the U.S. and Japan, we examined the current status of consumer education programs, especially in terms of HFF industry. Further, we referred to the guidelines for consumer education provided by the U.S. Food and Drug Administration and monitored the information from a web site that sells dietary supplementary products in the U.S. In addition, we surveyed consumer information on foods for special health use provided by the Japanese National Institute of Health & Nutrition, and investigated a DB of raw materials of function food (functionality/safety documents). Upon a literature review, the 13 functions of HFF were classified. As a result of conducting interviews with consumers, we developed content that was fit for consumers' perspectives. Through this research, we established a web page to enable people to search for information by function and then by raw material. After searching for information by raw materials, searching products by raw materials can be done in cooperation with E-marketplace. Subsequently developed content and education programs were offered on an HFF web page, which has been in operation since 2005. Therefore, it is expected that appropriate information on HFF will be available.

• Journal of the Korea Society of Computer and Information
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• v.14 no.9
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• pp.1-10
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• 2009

The field of the web service orchestration introduced to generate a valuable service by reusing single services. Recently, it suggests rule-based searching and composition by the AI (Artificial Intelligence) instead of simple searching or orchestration based on the IOPE(Input, Output, Precondition, Effect) to implement the Semantic web as the web service of the next generation. It introduce a AOP programming paradigm from existing object-oriented programming paradigm for more efficient modularization of software. In this paper, we design a dynamic web service orchestration and invocation scheme applying Aspect-Oriented Programming (AOP) and Reflection for Semantic web. The proposed scheme makes use of the Reflection technique to gather dynamically meta data and generates byte code by AOP to compose dynamically web services. As well as, our scheme shows how to execute composed web services through dynamic proxy objects generated by the Reflection. For performance evaluation of the proposed scheme, we experiment on search performance of composed web services with respect to business logic layer and user view layer.

• The Research Journal of the Costume Culture
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• v.26 no.2
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• pp.251-263
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• 2018

As mobile shopping has increased in the new media age, fashion consumers' decision making and product consumption processes have changed. The volume of consumer-driven information has expanded since media and social networking sites have enabled consumers to share information they obtain. The purpose of this study was to determine the factors affecting information searching strategies and information sharing about fashion products. An online survey collected data from 466 respondents, relating to the influence of product price level and consumer SNS commitment level on information search and information sharing. Experimental design of three product price level and two consumer SNS commitment level was used. Analysis of the data identified factors in fashion information searching as ongoing searching, prepurchase web portal information search, and prepurchase marketing information search. For low-price fashion products, prepurchase product-detail influenced intention to share information. For mid-priced products, ongoing search significantly affected intention to share information. Both ongoing search and prepurchase marketing information search showed significant effects for high-price products. Consumers who are more committed to SNS engaged in significantly more searching in all aspects of information search factors. Significant interaction effect was detected for consumer SNS commitment level and product price level. When consumers with low consumer SNS commitment search for information on lower-priced fashion products, they are less likely do a prepurchase web portal information search.

• Journal of KIISE:Software and Applications
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• v.33 no.7
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• pp.646-654
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• 2006

Directory searching and index searching methods are two main methods in web search engines. Both of the methods are applied to most of the well-known Internet search engines, which enable users to choose the other method if they are not satisfied with results shown by one method. That is, Index searching tends to come up with too many search results, while directory searching has a difficulty in selecting proper categories, frequently mislead to false ones. In this paper, we propose a novel method in which a category hierarchy is dynamically constructed. To do this, a category is regarded as a fuzzy set which includes keywords. Similarly extensible subcategories of a category can be found using fuzzy relational products. The merit of this method is to enhance the recall rate of directory search by expanding subcategories on the basis of similarity.

• The KIPS Transactions:PartD
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• v.9D no.3
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• pp.457-466
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• 2002

In this paper, we designed and implemented a web-based dictionary of computing which keeps the data up-to-date. This dictionary shows the English information based on the FOLDOC (Free On-Line Dictionary Of Computing) dictionary file at the beginning of searching, and then one or more users can translate the information into Korean. This function is the new one only this dictionary has. Also, we can easily find any words we want to took up, even if we don't know the spelling completely, because the dictionary has various searching interfaces (searching for the words starting with inputted characters, searching for the words including inputted characters in the description, etc.) using a SQL Server DBMS and SQL. The performance test for CPU load factor shows that the server can support at least 1780 users at the same time.