• The Journal of Korean Association of Computer Education
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• v.6 no.1
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• pp.41-54
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• 2003

Educational web sites are proliferating at an astonishing rate, however many of those web sites are of poor or unknown quality. Educators are in need of instruments to assist in evaluating educational web sites for authenticity, applicability, authorship, bias, and usability, etc. The ability to critically evaluate educational content form numerous web sites is an important skill in this information age. In this paper, indicators of educational web site quality have been identified from literature review and our own research, and classified within 8 categories. To test the relative contribution of each indicator to the satisfaction level from using educational web sites, a questionnaire survey was administered. Subjects were asked to visit the educational web site of his or her choice and rate the quality level of each indicator. 255 completed questionnaires were turned in for analysis. Cronbach's Alpha test and factor analysis were applied to test the reliability and validity of the data. Stepwise regression analysis was applied to test the relationship between the satisfaction level and 14 independent factors. Implications from the statistical analysis as well as the guidelines for evaluating educational web sites were provided.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.17 no.2
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• pp.1-9
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• 2003

This paper is to find the difference of evaluation structure between a residential space and of ace work space and to examine a relation between mood item and behavior items on evaluation of the luminous environment. First 20 mood items md 15 behavior items were selected for evaluation item on the luminous environment. And then, subjective evaluation was experimented by the semantic differential method. The results are as follows: (1) In respect of evaluation un the mood both luminous environments that have each different character of space at evaluated by the three factors; activity, comfort and quality. (2) In respect of evaluation on the behavior, three factors, work, relaxation and entertainment are selected in the residential space and two factors, work and non-work are selected in the office work space. (3) In the residential space, activity is very important factor that affects on three behaviors, work, relaxation and entertainment. In the office work space, activity affects on work and quality affects on non-work.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10a
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• pp.198-200
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• 2000

대용량의 데이터베이스에서 여러 트랜잭션에 동시에 나타나는 항목들의 모임인 빈발 항목집합을 찾아내는 데이터 마이닝 방법을 연관 규칙 탐사라고 한다. 빈발 항목집합을 찾아내는 데이터 마이닝 방법을 연관 규칙 탐사라고 한다. 빈방 항목집합을 찾아내는 문제는 항목 집합들의 후보 집합을 생성하고 빈발 항목집합의 조건을 충족시키는 후보 집합을 추출함으로써 해결된다. 그리고 이러한 작업은 각각의 빈발 k-항목집합에 대해 k가 증가함에 따라 반복적으로 수행된다. 그러나 연관 규칙 탐사에 관한 기존의 연구는 주로 데이터베이스를 이루는 항목들의 수가 많거나 트랜잭션의 길이가 긴 경우의 대용량 데이터베이스에서 빈발 항목집합의 발견에 초점을 맞추고 있다. 본 논문에서는 데이터베이스를 이루는 전체 항목의 수가 적거나 트랜잭션의 크기가 작은 경우 효과적으로 빈발 항목집합을 찾을 수 있는 연관 규칙 탐사 방법을 제안한다. 그리고 성능 평가를 통하여 제안하는 방법의 성능 및 타당성을 보인다.

• Archives of design research
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• v.16 no.4
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• pp.101-110
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• 2003

This paper is focused on the similarity of GUI design and proposes checklists for evaluating similarity of GUI design in quantitative way and more important factors in this checklists. On the first, consideration of similarity and analysis of GUI properties are made, and from these results, the categories that affect the evaluation of similarity are extracted. The categories are consisted of 5 factors, which are concept, shape, color, relation, and multimedia. The checklists from above 5 categories are tested in 3-stage, and in this paper, 11 checklists from shape, color, and relation factor of the second stage are verified by online survey. The purpose of this survey is to find out the difference between user groups(designer, computer related, etc) and more important factors in the checklists that affect the total results of similarity. In the results of survey, the checklists have no relation with the user groups and among the checklists, external shape, composition element, and design methods have impact factors on the evaluation of similarity.

• Archives of design research
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• v.17 no.1
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• pp.163-178
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• 2004

In this study, in order to achieve the before-mentioned study purpose, the importance of developing the new product, the relationship with the design, and the design element for developing the new product were considered. In order to extract the importance of the design element which is applied to the development of the new product design, the research model about the induction of the priority was created, the evaluation items were instituted, and the demonstrative research approach was performed in order to recognize the relationship among those elements. Firstly, in the process of selecting the items for the application, 14 evaluation elements which were extracted through the advanced study data were grouped in 4 kinds of dimensions, and the properties which are related with the Digital TV product were composed up of 36 items. Through the factor analysis, by decreasing the detailed standard for the evaluation of 36 items, the parsimony was secured, and the characteristics which the various items contain induced into one factor. Secondly, the detailed factors which were united into one factor went under the paired comparison as one by one through AHP again, and then the importance degree was generated. First of all, as the first stage of AHP, the decision making factors which affect the whole achievement of purpose of the decision making were classified as in a hierarchical style. From these research results, it was known that the functional factor and esthetic factor in the process of designing the new product are the major affecting variables, and it was confirmed that in case of the Digital TV products group, the factors such as the high quality of picture, big screen, user interface, sound, product reliability, style, size, indoor reproduction, and guarantee are the main factors which influence the need of the consumers in purchasing products.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.1
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• pp.31-37
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• 2009

This paper casts an application of an extended fuzzy integral on the selective extraction of color clusters characterized by a particular color hue from color document images. Despite of the negative role of fuzzy integral, the presented approach attains the detection of the seals through the neighborhood information via the center of area method. The conventional fuzzy integral evaluates the negative aspects of the importance about the items by min operator, which result in the discontinuous parts of seals. In an attempt to cope with the drawback our approach considers the integral aspects via the center of area method, which results in the robustness of the images. Finally, the framework is successfully tested on a data set formed by documents from a real application for the detection.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2012.07a
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• pp.111-114
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• 2012

본 논문에서는 국내 디지털 저작권 보호 업체 혹은 대학 및 연구소에서 개발하고 생산하는 포렌식마크 기술의 품질을 객관적으로 평가할 수 있는 평가절차와 평가지표를 정량적으로 제시하였다. 포렌식마크 기술을 객관적으로 평가하기 위해서 본 논문에서는 우선, 구매자 정보(포렌식마크라)가 삽입된 테스트 영상의 공격 항목과 수준을 정하고, 포렌식마크 정보의 추출 성능을 평가하기 위한 평가절차로서 평가항목, 평가기준, 평가절차를, 그리고 인증을 위해서는 포렌식마크 기술의 신뢰성에 대한 통계정보를 포함하는 인증서를 생성하기 위한 인증절차를 포함하였다. 이러한 포렌식마크 기술의 평가 및 인증 지침은 기술 개발자에게는 자신들이 개발한 포렌식마크 기술에 대한 객관적인 평가결과를 미리 알아볼 수 있어서 기술의 상품성을 점검할 수 있고 소비자 입장에서는 객관적이고 보편타당성 있는 평가 결과에 대한 신뢰를 가질 수 있다. 평가자 입장에서는 표준 평가를 통해 객관적이고 정량적인 평가 결과를 얻을 수 있어서 상대적인 우열을 가리기가 용이해지는 편리성을 얻을 수 있다. 이를 통하여 포렌식마크 기술의 발전과 디지털 저작권 보호 시장의 활성화에 일조를 할 수 있을 것으로 사료된다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.1
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• pp.33-39
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• 2017

This study identified a candidate area and route for construction of a hub & spork system for coastal passenger ships. For this purpose, the characteristics of the hierarchy structure of other transportation and the operating system of coastal passenger ships were analyzed. Evaluation factors for selecting alternative areas and routes for the construction project were then extracted. Secondly, the relative importance of these evaluation factors for alternative routes were calculated using the Analytic Hierarchy Process (AHP) method. Finally, the importance of these evaluation items and quality of the alternative areas and routes were considered to select a primary candidate area and route. Therefore, four evaluation items such as the number of passenger-ship routes, the number of passengers, the number of cars, and the number of residences were extracted, and the Mokpo area was selected as the target area. In addition, four evaluation items such as he number of islanders, the number of local governments, geographical conditions and passenger ship operators were extracted, and the Yeonggwang route was selected as priority candidates for this construction project. Meanwhile, for the expansive implementation, step-by-step promotion is needed along with the expansion of terminal facilities, the securing of large ships, and the introduction of a semi-public system for coastal passenger ships.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2000.04a
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• pp.581-584
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• 2000

웹사이트의 사용성에 영향을 미치는 요소들은 매우 많으며 또한 각각이 갖는 비중 또한 다르다. 이러한 점들을 고려한 웹사이트의 사용성을 예측할 수 있는 평가방법의 개발은 웹사이트 개발자 뿐 만 아니라 사용자들에게도 중요한 문제이다. 이러한 다중기준 평가에서는 대상 시스템의 전체적인 사용성을 효과적으로 정의할 수 있는 단일기준을 추출할 수 없기 때문에 다중기준을 고려하였고 그에 따라 가중치를 설정하기 위해 AHP 모형을 적용하였다. 본 연구의 목적은 웹사이트의 설계, 개발 단계에서 사용성을 평가, 개선할 수 있는 효율적인 사용성 평가방법을 제시하는 것이며 이를 위해 웹사이트의 사용성 평가항목 정의, 각 사용성 평가항목에 대한 세부평가기준 정의, 각 평가기준에 대한 쌍대비교, 가중치 산출, 가중치 종합에 의한 사용성 평가값 산출의 단계를 거쳐 연구가 수행된다.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.2
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• pp.132-138
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• 2009

The energy efficiency and environment-friendly aspect of the railway system would be superior to other on-land transportation systems. In a preliminary feasibility study stage and selection of optimal railway corridor, the energy efficiency and problems related to environment are usually not considered. For the selection of optimal railway corridor, geographical features and facility of management are generally considered. Environment effect factors for the selection of environment-friendly railway corridor are focused and studied in this paper. In this study, various analysis of opinion of specialists (railway, environment, transport, urban planning, survey) and the guideline for construction of environment-friendly railway were accomplished. From these results of various analysis, 7 major categories (topography/geology, flora and fauna, Nature Property, air quality, water quality, noise/vibration, visual impact/cultural assets) were extracted. To select environment friendly railway corridors, many alternatives should be compared optimal corridor must be selected by a comprehensive assessment considering these 7 categories. The investment for railway systems can be encouraged by the considering of main environmental effect factor evaluated with the modified environmental weight factors for environment-friendly railway construction.