• Title/Summary/Keyword: Hierarchy difference

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An Application of the Cross-impact Hierarchy Process to Evaluate Aeronautics Technologies: A Case Study (상호영향계층분석방법을 이용한 항공기술의 평가에 관한 연구)

  • Kwon, Cheol-Shin;Cho, Keun-Tae
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2000.10a
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    • pp.259-262
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    • 2000
  • The Cross-impact Hierarchy Process (CHP), an extended model of the Analytic Hierarchy Process(AHP) which is linked to Cross Impact Analysis(CIA), is a powerful decision making tool to assist in the ranking of large number of dependent technological alternatives. In this paper, we will describe an application of the CHP to the aerospace industry. We here conducted a questionnaire survey for S company that is one of the representative aerospace companies in Korea. A questionnaire was designed to obtain both the priority with dependence (the CHP priority) and the priority with independence (the AHP priority) in order to compare the priority derived by each of two methods. The hierarchy in this case study is concerned with priority setting for R&D area to ensure dependent aerospace design technology of the company, The result shows that there exists the difference hard to neglect between the final priorities gained by two methods.

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College Hierarchy and the Labor Market in Korea: Changes in the Wage Premium of College Hierarchy over Several Decades (대학서열과 노동시장: 학벌 프리미엄의 시대별 변화)

  • Kim, Jin-Yeong
    • Analyses & Alternatives
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    • v.6 no.1
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    • pp.35-68
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    • 2022
  • In this paper we define wage premium of college hierarchy as a wage differential among college graduates from different universities within the same graduate cohort and estimate the wage premium of college hierarchy for the three different cohorts: namely, 1982, 1992, and 2002. We utilize a unique data set called Education-Labor Market Lifetime Path Survey, which contains education and labor market information about the three different college graduate cohorts. We find that the wage premium of college hierarchy changes over time for the same cohort. It tends to large right after graduation but decrease with labor market experience. When the test score at the time of college entrance controlled, the wage premium of college hierarchy mostly disappears for the 1992 cohort. But for the 2002 cohort it remains seven years after graduation. The difference in the wage premium of college hierarchy can be explained, at least partly, by the number of colleges, college enrollment ratio, and the relation between college hierarchy and the entrance test score.

An Analysis on Structural Knowledges by Concept Maps -Focused on Plane Figures in Elementary School- (개념도를 이용한 구조적 지식의 조사 연구 -초등학교 평면 도형 단원을 중심으로-)

  • 정승진;박배훈
    • Education of Primary School Mathematics
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    • v.2 no.1
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    • pp.65-73
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    • 1998
  • The purpose of this study is to investigate significant differences of structural knowledges among the groups(high, middle, low) when the 6th grade subjects structured the concepts of the plane figures, triangle and quadrangle, by concept maps, and to analyse the features of concept maps according to hierarchy. For this purpose, the following two research contents were investigated: 1. Investigating significant differences of structural knowledge in the concepts of the plane figures using concept maps among the groups(high, middle, low). 2. Analysing the features of concept maps according to hierarchy. The structural knowledges represented on the concept maps of triangle and quadrangle which were drawn by the subjects were analysed by propositions, hierarchies, and cross-links. Subject-self Reports about how to make the concept maps were used to analyse the features of concept maps according to hierarchy. The conclusions drawn from the results were as fellows: First, there were significant differences among the groups in proposition links. Second, there wasn't my significant difference among the groups in hierarchy. Third, there were significant differences among the groups in cross-links, and Fourth, the results of analysing the concept maps by hierarchy showed that there were differences among the individuals in constructing the knowledges.

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A Study on Core Competencies of ITS Project Managers Using QFD and AHP (QFD와 AHP를 이용한 ITS 프로젝트관리자 핵심역량 연구)

  • Lee, Bong Woo;Kim, Ja-Hee;Kim, Woo-Je
    • Journal of Information Technology Services
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    • v.10 no.1
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    • pp.89-103
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    • 2011
  • ITS (Intelligent Transportation System) has been more popular but ITS project managements remain complex because of diverse stakeholders and multidisciplinary processes of ITS. The multidisciplinary process enforces specialized competencies on ITS project managers comparing to other system integration project managers. In this paper, we derived core competencies of ITS projects from previous researches, built the hierarchy of the competencies, and employed AHP (Analytic Hierarchy Process) surveying ITS project managers and auditors with the hierarchy. Finally, we analyzed the difference of evaluation model on ITS project manager between project managers and auditors using Mann-Whitney U test. Additionally we suggest a method of building MECE (Mutually Exclusive and Collectively Exhaustive) structure for AHP using the HoQ (House of Quality). We expect our model to give some inspirations for raising capable ITS project managers and selecting a proper project manager for an ITS project.

A Study on the Characteristics of Non-hierachical Arrangement of SANAA's Work by Space Syntax (공간구문론을 이용한 SANAA 작품의 비위계적 공간구성 특성 연구)

  • Lee, Ki-Seok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.8
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    • pp.735-744
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    • 2016
  • This study attempted quantitative analysis by space syntax on the plan of a non-hierarchical arrangement, which selected SANAA's work after Almere Stadt Theater, and analyzed the difference in the quantitative value of the non-hierarchical arrangement in plan that appears externally. The analysis results were as follows. First, SANAA's spaces with a non-hierarchical arrangement plan that appears externally showed a definite quantitative value difference, and had a hierarchical space difference in the plan that does not appear externally. Second, the spaces with a high integration value also had a high connectivity value, which is indicated by increasing the number of space openings using the method of giving hierarchy to the non-hierarchical arrangement plan or adjusting the size of the room or location to grant hidden hierarchy. Third, SANAA used exterior corridor rather than interior corridor in grid-type plan to solve the accessibility problem, and the open coat spaces between rooms provide natural lighting and ventilation and are used as equipment that controls the hidden hierarchy of space at the same time.

Morphometric Analyses on 24 Species (13 Families of Six Orders) of Korean Mammals (한국산 포유동물 24종(13과 6목)의 형태적 형질의 분석)

  • 고홍선
    • The Korean Journal of Zoology
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    • v.32 no.1
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    • pp.14-21
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    • 1989
  • Four external and 22 cranial characters of 279 specimens representing 24 species of six orders of Korean mammals were measured. The data were analyzed by phenetic methods such as ordination as well as clustering techniques. Morphological distances were also calculated. Phenetic studies yield taxonomic placements of Siberian mink, Palearetic squirrel, and big white-toothed shrew which are incorrect. Morphological differences among Korean mammals at ordinal level in the taxonomic hierarchy are larger than those among other mammals: morphological differences below ordinal level are comparable to those among other mammals. Average taxonomic distances and morphological differences among Korean mammals at various levels in the taxonomic hierarchy are jointly monotonic, although the value of Pearson's product-moment correlation coefficient between average taxonomic distance matrix and morphological difference marrix is 0.59.

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A Comparative Study on Cognition Difference of Maritime Polices' Organization Culture (해양경찰공무원의 조직문화에 관한 인식차이 연구)

  • Kim, Jong-Gil
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.19 no.5
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    • pp.511-517
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    • 2013
  • Maritime police recognize that the organizational culture of various acting as a member of the organization. Also, marine policing and security activities to determine the number of build. The overall culture of maritime police who share the organization sub-culture may take place. Maritime police organizational culture and a variety of types of group culture, hierarchical culture, development culture, rational culture examined the differences in perceptions. Maritime police aware of the general results of the analysis are as follows; First, the maritime police officers of the age group of 20 was the highest recognition in hierarchy culture and rational culture. Second, the maritime police officers of the rank of captain was the highest recognition in development culture and rational culture. Third, differences in the perception of organizational culture by recruitment analysis show the difference in cultural groups showed, in particular, the special recruitment group of police officers, and maritime police culture can be seen tend to appear low.

A Study on Methods of Acupuncture Points Combination and Hierarchy Concept of Acupuncture Prescription(鍼 處方) in Korean Medicine(韓醫學). (한의학(韓醫學) 침(鍼) 처방(處方)의 구성 방법 및 주차(主次) 개념에 관한 고찰)

  • Kye, Kangyoon;Kim, Byoungsoo
    • The Journal of Korean Medicine
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    • v.41 no.3
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    • pp.9-21
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    • 2020
  • Objectives: This study is to understand and develop Acupuncture treatment in Korean Medicine(韓醫學). Methods : Firstly, the definitions of Acupuncture Prescription(鍼 處方) and Methods of Acupuncture Therapies(鍼法) were clarified. Secondly, the results from the researches of previously existing Acupuncture Prescriptions(鍼 處方) were analyzed. Results & Conclusions : Acupuncture Prescription(鍼 處方) represents the results achieved from combining Acupuncture Points(腧穴) according to the symptoms of diseases. Methods of Acupuncture Therapies(鍼法) denote methodologies for proposing Acupuncture Prescriptions(鍼 處方) which were accomplished by combining Acupuncture Points(腧穴) based on a specific theory. The existing methods of combining Acupuncture Points(腧穴) derived from the analysis of Acupuncture Prescription (鍼 處方) have a meaning in suggesting a direction for acupuncture treatments. However, deficiencies still exist to restore the absence of universality and objectivity in acupuncture treatment. Researches on Methods of Acupuncture Therapies(鍼法) based on the principle are required accordingly. The concept of hierarchy exists in Acupuncture Prescription(鍼 處方) and it ranks Acupuncture Points(腧穴) as primary and secondary according to the indications of the Acupuncture Points(腧穴). Since there is the time difference in needling process, the concept of hierarchy is fulfilled through the needling procedure.

Priority setting for expanding health insurance benefit package using Analytic Hierarchy Process (계층화분석법(AHP)을 이용한 건강보험급여확대상병 우선순위 결정)

  • Choi, Sook-Ja;Ko, Su-Kyoung;Kim, Jung-Hee;Lee, Sang-Yi
    • Health Policy and Management
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    • v.16 no.1
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    • pp.73-94
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    • 2006
  • This study was carried out to show how the Analytic Hierarchy Process technique could be used in setting the priority among selected diseases to increase the range of health insurance benefit. Thirty experts, including doctors (group1), experts for preventive medicine or public health(group2), and representatives of the insured(group 3), participated in the study panel that is conducted for priority setting. They were asked to evaluate the priorities among 6 selected criteria and then 42 selected diseases. The results were as follows; First, representatives of the insured think that the magnitude of out-of-pocket payment should have high priority while doctors think that effectiveness of treatment should have high priority. Second, all experts think that catastrophic diseases such as malignant neoplasm, major heart disease, and cerebral vascular disease should have high priority in health insurance coverage even though there is little difference among groups. These results can be useful to establish a systematic strategy for expanding health insurance benefit package.

An Optimality-Theoretic Analysis of 'It'-Extraposition in English

  • Khym, Han-gyoo
    • International Journal of Advanced Culture Technology
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    • v.6 no.4
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    • pp.58-64
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    • 2018
  • The Extraposition phenomenon in English has been analyzed mainly through two approaches: a derivational approach under the Principles & Parameters framework (P&P) and a representational approach under the early Minimalist framework (MP). The first one tries to understand the phenomenon as a result of the movement of a Big Subject first to the end of a sentence which is then followed by the insertion of an expletive 'it' to the empty Subject position. On the other hand, the second one tries to understand it by way of assuming a Big Subject originally base-generated at the end of a sentence which is followed by the insertion of an expletive 'it' to the empty Subject position. The two approaches, however, are not free from theoretical defects at all: the full derivational approach was under controversy in terms of (1) the failure of the Binding Theory and (2) its inability to suggest anything about the marginal reading issue. On the while, the representational approach has been argued (1) to violate the thematic hierarchy that should be kept in D-structure, and (2) to be also unable to suggest the slightest difference in marginal reading issue as the first one. In this paper I focus mainly on analyzing the 'It'-Extraposition phenomenon in the Optimality Theory. I will show that by way of (i) some newly developed constraints such as Subj., and AHSubj. and (ii) a constraint hierarchy of Subj.>>AHSubj., the controversies of 'It-Extraposition' such as (1) the analysis of construction and (2) the very closely related issue of 'marginal reading issue' can be explained properly.