• Journal of the Korean Geotechnical Society
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• v.16 no.4
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• pp.63-70
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• 2000

The quantitative analyses and the mechanical interpretation of discontinuity planes are the most important factor for the study of strength and deformation properties of rock masses containing discontinuity planes. However, the relationship between the factors investigated in the field and the actual mechanical properties of discontinuity planes is not fully understood. The main purpose of this study is to investigate the effects of density, length, and spacing of joints on elastic modulus of rock masses as these values vary. A new parameter which has a direct relation with the elastic modulus of discontinuity planes is also preposed in this study. The combination of finite element methods and homogenization methods has been used for the numerical analyses of a uintcell with discontinuity planes, which is generated using random-number generation methods. The elastic modulus of the discontinuity plane is found from the numerical analyses. The final results propose not only the relation between the investigation parameters of discontinuity planes and the elastic modulus of rock masses but also a new parameter, an effect area ratio having a linear relation with the elastic modulus of rock masses.

• Journal of Distribution Science
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• v.10 no.1
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• pp.33-42
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• 2012

This study is focused on traditional market's competitiveness in Korea. Ever since the Korean retail industry had been opened to the big conglomerates, the traditional markets have faced very serious competition from various types of distribution channels. In particular, this study has been conducted to find another way to help the Korean traditional market from the perspective of college students who are consumers of the future. This study examines the relationships among store choice attributions, consumption emotion, consumer's value, and relationship quality from the perspective of college students. In order to verify the relationship, and moderating and mediating effects, data were collected from 126 college students in Whasung, Gyeonggi Province to test the theoretical model and its hypotheses. The results of this study are as follows: First, service (= .263, p < .01) and advertising (= .188, p < .05) are significantly positively related to relationship quality. However, store atmosphere (= .176, p = .052) is not statistically significantly related to relationship quality. The result that students have stereotypes about the atmosphere of traditional markets and are therefore excluded from their store choice attributions can be expected. Second, college students selected service division (= .230, p < .05) as the most important factor among the traditional market's store choice attributions. This result reflected that enhancing service strategy would strengthen the traditional market against discount stores. The process of product selection by customers in discount stores is based on the concept of self-service. However, traditional market traders can make various contacts with their customers. If traditional market traders can enhance various service factors just like in the process of product selection, it will effect strong competitive advantages. Third, it is also revealed that consumer's value exhibit complete mediation effect in the relationships between service and advertising. These results showed that traditional markets must be considered for consumer value. Because previous studies showed that values refer to "enduring belief that … specific mode of conduct or end-stat of existence … personally or socially preferable to an opposite of converse mode of conduct or end-state of existence" (Rokeach, 1973; George and Jones, 1996). Furthermore, Schwartz (1994) defined values as desirable trans-situational goals, varying in importance, that serve as guiding principles in the life of a person or other social entity. As conceptions of desirable end-states of existence or modes of conduct, values help people choose, evaluate, and give meaning to their experiences (Rokeach, 1973). Efforts (e.g. promote the consumers value) of the traditional market traders will improve the preferences for the traditional market of consumers and college students. Implications and future research directions are also discussed.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.04a
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• pp.624-627
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• 2014

현재의 기업 정보시스템의 골격을 정의한 설계도라고 할 수 있는 데이터 모델은 정밀하게 작성되어야 한다. 데이터 모델의 핵심요소로는 엔터티, 속성, 관계가 있으며, 이 중에서도 속성은 실질적인 정보를 담는 가장 기본적인 단위라 할 수 있으므로 모든 정보의 근원이라 할 수 있을 것이다. 그래서 속성들을 제대로 도출하지 못하면 데이터 모델 전체가 무의미하게 될 수 있다. 기존의 속성을 도출하는 방법은 설계자의 경험에 많이 의존하고 실질적인 절차가 존재하지 않아 실무경험이 없는 초보자가 도출하기에는 너무나 어려운 것이 현실이다. 이를 해결하는데 도움이 될 수 있도록 본 논문에서는 데이터 모델 설계의 한 과정으로서, 선행연구에서 제시한 업무중심 엔터티 도출 방법을 이용하여 엔터티가 완전히 도출되어 있다고 가정하고 미리 도출되어 있는 엔터티를 바탕으로 속성을 도출하는 절차를 제안한다. 그리고 데이터 모델링 경험이 많이 없는 학부생 및 대학원생을 대상으로 본 논문에서 제안한 절차를 적용하도록 하였다. 기존에 속성을 도출하는 방법이 실질적으로 존재하지 않기 때문에 학생들이 도출한 속성과 전문 IT 컨설턴트로 멘토가 도출한 모법 답안 간의 유사도검사를 하였다. 최종 유사도 검사를 통하여 전문 IT 컨설턴트인 멘토가 도출한 모법 답안에 상당히 근접하게 속성을 도출할 수 있다는 것을 확인하였다. 따라서 본 논문에서 제안한 절차를 활용한다면 데이터모델링에 실무경험이 없는 초보자나 미숙련자가 적용하여도 속성을 도출할 수 있음을 보였다. 제안 절차에서 도출된 결과를 이용하여 데이터 모델 설계의 이후 과정인 관계도출 과정을 진행할 수 있을 것으로 기대한다.

• Journal of Digital Convergence
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• v.14 no.7
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• pp.117-126
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• 2016

This study focuses the importance of relation between information attributes and communication of internet user. The author is to clarify how to communicate in internet environment and word-of-mouth as a result of social influence among internet user take place in relation to information attributes. The main findings are that comprehensive ease, relevance and novelty among information attributes positively influence reciprocal communication, reciprocal communication positively influences internalization and conformity, and those positively influence word-of-mouth communication.

• Proceedings of the Korea Database Society Conference
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• 1997.10a
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• pp.504-514
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• 1997

관계형 데이터베이스의 성능을 향상시키는데 중요한 요소 중의 하나는 트랜잭션을 처리하기 위해 데이터를 디스크에서 주기억장치로 옮기는데 필요한 디스크 액세스(access) 횟수이다. 본 연구는 관계형 데이터베이스에서 트랜잭션을 처리할 때, 릴레이션(relation)을 수직분할하여 디스크에 단편(fragment)으로 저장하므로써 필요한 단편만 액세스하여 액세스 횟수를 감소시키는데 목적이 있다. 단편에 속성을 중복할당하여 수직분할하므로써 트랜잭션을 만족시키는 단편의 수를 감소시켜 중복할당을 고려하지 않은 방법보다 디스크 액세스 횟수를 감소시킬 수 있다. 갱신트랜잭션의 경우 하나의 속성이 갱신되면 중복된 속성을 모두 갱신하여야 하므로 액세스 횟수가 증가하지만, 조회트랜잭션의 경우 각 단편에 속성을 중복할당하여 액세스 횟수를 감소시킬 수 있다. 본 연구에서는 속성의 중복을 허용하여 단편을 구성하는 경우에 중복을 고려하지 않은 경우를 포함하므로 효과적으로 디스크 액세스 횟수를 감소시킬 수 있다. 본 연구에서는 중복할당을 고려하여 디스크의 액세스 횟수를 최소화시킬 수 있는 수직분할문제의 0-1 정수계획모형을 개발하고, 모형에 대한 최적해법으로 분지한계법을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.892-894
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• 2019

빅데이터 기반의 기계학습은 대규모 데이터를 이용하여, 숨겨진 패턴을 찾아내는 학습과정과, 그렇게 찾아낸 패턴을 이용하여 새로운 데이터를 해석하는 추론과정으로 이루어진다. 이 과정을 통해 학습된 패턴은 데이터를 구성하는 속성들과 긴밀한 연관성을 갖고 있다. 학습에 사용된 데이터의 원 데이터를 구성하는 각각의 속성과 추론 결과가 동일한 계층 관계를 갖고 있다면, 모든 속성을 동일하게 처리할 수 있지만, 그렇지 않은 경우, 속성들 사이의 계층 정보를 고려하는 것이, 추론 결과의 정확도를 높일 수 있다. 이에 본 연구에서는 속성들 사이의 계층 관계를 고려한 추론 기법을 제안하고, 사례연구를 통해 제안 방법을 실제 상황에 적용하는 방법을 제시한다.

• Culinary science and hospitality research
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• v.21 no.6
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• pp.38-48
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• 2015

This study examined the factors that affect the relationship between dessert cafe customer attribute election, relationship quality and behavioral intention. A total of 260 questionnaires were distributed to consumers, of which 250 were deemed suitable for analysis after the removal of 10 unusable responses. In order to perform statistical analyses required by the study, the SPSS 18.0 Statistical Program was employed for frequency analysis, factor analysis, reliability analysis, correlation, and regression analysis. The results of the exploratory factor analysis showed that three factors regarding attributes selection were extracted from all measurements with a KMO of 0.757 and a total cumulative variance of 67.885%, With regard to relationship quality, three factors were extracted with a total cumulative variance of 76.070% and a KMO score of 0.715. One factor for behavioral intention was extracted that accounted for a total cumulative variance of 66.254% and a KMO score of 0.771. All factors were significant to 0.000 and the correlation between variables was significant. Thus, based on the results, the main research hypothesis that identifies the relationships attributes selection between relationship quality and behavioral intention was partially adopted.

• Journal of Korean Library and Information Science Society
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• v.46 no.3
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• pp.27-49
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• 2015

The purpose of this study is to suggest the ways to apply describing attributes and relationships of families to Korean Cataloging Rules. In order to achieve the objective of this study, the FRAD conceptual model, and the cataloging rules such as RDA, DACS2 and KCR2 were analyzed. For describing attributes of families, this study analyzed name, type, date, place, prominent member, hereditary title, language, history, and identifier of families. For describing relationships of families, this study investigated describing relationships to families associated with each resource, such as a work, an expression, a manifestation, and an item, and describing relationships between families, relationships between families and persons, and relationships between families and corporate bodies. Based on these analyses, this study suggested the application methods of describing attributes and relationships of families in Korean Cataloging Rules.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.25 no.3
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• pp.235-261
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• 2014

The purpose of this study is to suggest the ways to apply describing attributes and relationships of person to Korean Cataloging Rules. In order to achieve the objective of this study, the conceptual models such as FRBR and FRAD, and the cataloging rules such as AACR2R, RDA, and KCR2 were compared and analyzed. For describing attributes of person, this study analyzed names, dates, titles, fuller form of names, genders, places, affiliations, languages, fields of activity, professions or occupations, biographical information, and identifiers of person. For describing relationships of persons, this study investigated describing relationships to persons associated with each resource, such as a work, an expression, a manifestation, and an item, and describing relationships between persons, relationships between persons and families, and relationships between persons and corporate bodies. Based on these analyses, this study suggested the application methods of describing attributes and relationships of persons in Korean Cataloging Rules.

• 한국경영정보학회:학술대회논문집
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• 2007.11a
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• pp.251-256
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• 2007

성형외과에서는 웹 방문자를 늘리기 위하여 다양한 노력을 하고 있지만, 웹 사이트의 어떠한 속성이 웹 방문자 수를 증대시키는지에 대한 체계적인 연구는 찾아보기 어렵다. 본 논문에서는 방문자 수가 많은 성형외과 웹 사이트와 방문자 수가 적은 웹 사이트를 구분하는 속성을 규명하였다. 다중 판별 분석과 의사결정 나무 기법, 신경망 분석 기법을 이용하여 방문자의 다소 (多少)를 구분하는 속성들을 도출하였다. 웹 사이트의 속성 중 '가상성형프로그램', '정보추천' 등 소수의 속성이 방문자 수의 다소(多少)를 설명하는 것으로 드러났다.