• Title/Summary/Keyword: AHP-weight

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Comparison of Importance Weights for Regression Model and AHP: A Case of Students' Satisfaction with University (회귀모형과 AHP의 가중치에 대한 비교 연구: 대학생의 학교 만족도를 대상으로)

  • Jong Hun Park
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.45 no.4
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    • pp.118-126
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    • 2022
  • This study attempts a comparison between AHP(Analytic Hierarchy Process) in which the importance weight is structured by individual subjective values and regression model with importance weight based on statistical theory in determining the importance weight of casual model. The casual model is designed by for students' satisfaction with university, and SERVQUAL modeling methodology is applied to derive factors affecting students' satisfaction with university. By comparison of importance weights for regression model and AHP, the following characteristics are observed. 1) the lower the degree of satisfaction of the factor, the higher the importance weight of AHP, 2) the importance weight of AHP has tendency to decrease as the standard deviation(or p-value) increases. degree of decreases. the second sampling is conducted to double-check the above observations. This study empirically checks that the importance weight of AHP has a relationship with the mean and standard deviation(or p-value) of independence variables, but can not reveal how exactly the relationship is. Further research is needed to clarify the relationship with long-term perspective.

A Study on the Growth of Multicultural Families' Children in Dae-jeon Area (대전지역 다문화가정 자녀의 성장에 대한 보고)

  • Lee, Hye Lim
    • The Journal of Pediatrics of Korean Medicine
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    • v.28 no.4
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    • pp.147-156
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    • 2014
  • Objectives The purpose of this study is to evaluate the current growth via Growth indices, Obesity indices, Metabolic risk factors of Multicultural Families' Children in Dae-jeon area. Methods 5 to 12 year old children from 56 multicultural families were enrolled in this study, and were examined their bone age and body composition, and have received blood tests. Results 1. In Growth indices, average height percentile was $53.64{\pm}25.59%$. The AHP and MPH respectively, were converted into 20 years old adult height percentile, AHP of a girls was 40 percentile and MPH was 19 percentile, AHP of boys was 57 percentile and MPH was 21 percentile. 2. In Obesity indices, average of BMI pecentile was $44.16{\pm}29.52$; low-weight group (6 boys, 4 girls), normal-weight group (20 boys, 18 girls), over-weight group (8 girls). Average PWH was $100.51{\pm}15.66%$; low-weight group (9 boys, 5 girls), normal-weight group (14 boys, 15 girls), over-weight group (3 boys, 5 girls), obesity group (5 girls). 3. The results of the relationship between Growth indices and Obesity indices, 1) As RH percentile in boys was increased, skeletal maturity, AHP and AHP-MPH were also increased. Similarly, as RH percentile in girls was increased, skeletal maturity, AHP and AHP-MPH were also increased. 2) As skeletal maturity in boys was increased, BMI percentile was also increased. As skeletal maturity in girls was increased, AHP-MPH was decreased but had no significant differences. Conclusions Current growth of children in multicultural families was above the average when compared to that of average children in the same age. It was predicted that the boys' height were still above the average adult height, but the girls' height were below the average. Also this study showed that girls were more prone to be overweight than boys, thus requiring more intensive management and training in regards to eating habits and exercise.

Perspective on Mix Weight of Hydrogen Energy Production Using the AHP (AHP를 이용한 수소에너지 제조원별 믹스 전망)

  • Lee, Deok-Ki;Park, Soo-Uk;Kang, Seok-Hun;Choi, Bong-Ha;Boo, Kyung-Jin;Lee, Sang-Sul
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.753-758
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    • 2007
  • AHP analysis was carried out to derive the optimum mix weight of hydrogen energy production material presented in a "national vision of the hydrogen economy and the action plan" and aimed to be commercialized by $2030{\sim}2040$ year. Six kinds of hydrogen production materials(natural gas, spare electric energy, fleeting gas, renewable energy, coal, nuclear energy) was selected as subjects of study and the perspective of optimum mix weight was derived through AHP analysis.

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Analysis of the Weight for the Required Performance Items of Lightweight Wall through the Test-bed and AHP Method (테스트베드 구축과 AHP기법을 통한 경량벽체 요구성능의 중요도 분석)

  • Lee, Hak-Ju
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.05a
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    • pp.105-106
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    • 2015
  • As the Long-life certification system is recently introduced in the Housing Law in Korea, it is expected that an application of the lightweight wall panel will be increased in apartment construction as the main wall system. However, the performance criteria for lightweight wall is in the early phase of its action. Therefore, it is necessary to establish the performance criteria properly by investigating performance requirement in the user's perspective. The purpose of this study is to identify of the weight of the required performance items for the lightweight wall in apartment house. To analyze the priority in the performance, an interview survey is performed; after monitering the test-bed of the lightweight walls, user and experts evaluate the performance requirements. The weight of the performance requirement is developed by AHP method.

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A Research for Weight Decision of Waterproofing Methods Selection Evaluation Item using the AHP (AHP기법을 이용한 방수공법 선정 평가항목의 가중치 결정에 관한 연구)

  • Choi, Sung-Min;Lim, Jong-Kwon;Oh, Sang-Keun;Seo, Chee-Ho
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2008.11a
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    • pp.205-211
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    • 2008
  • Recently, selects method of waterproofing where is suitable with method and material physical properties, construction technique, Productive technique and specifications and maintenance techniques evaluation for the same evaluation method is coming to be presented. Respects the application which select system is substantial objectively reflects a weight to evaluation item the research for is necessary. This research the evaluation which in order is effective and the decision-making to be possible about technically countermeasures for a quality security from waterproofing materials, method selection processes, clearly responsible dividing of construction and maintenance techniques. A sets weight of evaluation item for right select system, it stratify the causes which affect in priority based on AHP.

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Evaluation of Analytic Hierarchy Process Method and Development of a Weight Modified Model (AHP 분석의 문제점과 수정가중치모형의 개발)

  • Choi, Min-Cheol
    • Management & Information Systems Review
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    • v.39 no.2
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    • pp.145-162
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    • 2020
  • This study examines problems with using the conventional analytic hierarchy process (AHP) method and proposes a method of weight adjustment as a modification of AHP. AHP is a method for transforming complex decision problems into a hierarchal structure, which is composed of elements in the upper and lower levels and then using pairwise comparisons to evaluate these elements and subsequently to obtain their relative weights. The elements' relative importance is reliable if the elements in the lower hierarchical levels (sub factors) that comprise each element in the upper hierarchical level (primary factor) are equal in number. In other words, if the number of sub factors is different for each primary factor, a serious error is expected as a result. Therefore, this study proposes a modification of AHP that can avoid such an error when AHP is used. Specifically, an error that arises from different number of sub factors (matrix size) can be overcome by making the number of sub factors identical for each primary factor. The resulting model has been validated through the applications in different AHP hierarchical structures.

A Study on Improvement of Feasibility Evaluation for Public Projects (공공사업 타당성 평가의 개선 방안에 관한 연구)

  • Park, Seung-Jun
    • Journal of the Korea Convergence Society
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    • v.8 no.2
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    • pp.163-168
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    • 2017
  • The feasibility evaluation of public projects has been carried out mainly in the economic analysis. However, items of political, technological and balanced regional development aspects are further evaluated by applying analytic hierarchy process, This paper suggests to analyzes preliminary feasibility study of construction and research & development project during the past three years and to verify correlation between B/C ratio and AHP weight. The result shows that the correlation between cost benefit ratio and the weight of the hierarchy is 0.744 in construction projects and 0.899 in research & development project. Namely, AHP weight be under the control of B/C ratio and is devoted to its role against expectation. Therefore it must be sufficiently discussed in various designs of studies to maximize the effects of AHP analysis.

A Study on the Evaluation Model of Government-funded Research Institutes Using AHP (AHP를 이용한 정부출연연구소 평가 모형 연구)

  • Son, Eun Il;Baek, Chang Hwa
    • Journal of Korean Society for Quality Management
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    • v.50 no.4
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    • pp.665-677
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    • 2022
  • Purpose: The purpose of this study is to analyze the current status and investigate relevant indicators so that R&D performance evaluation suitable for government-funded research institutes can proceed. A suitable performance evaluation model was presented based on the surveyed indicators. Based on the presented performance evaluation model, the importance was analyzed to calculate the weight for each indicator of the performance evaluation model. Methods: The method applied in this study presented a performance evaluation model based on the organizational performance evaluation cases of advanced overseas countries. By using the AHP(Analytic Hierarchy Process) technique, the weight of each indicator of the performance evaluation model was studied. Results: As a result of examining the indicators necessary for the evaluation model, focusing on overseas cases, 13 evaluation items were derived. A weight was calculated for the importance of the study results. And the scientific/technical research results showed the highest excellence. Conclusion: Key indicators of performance evaluation suitable for government-funded research institutes were derived and presented through detailed modeling in three stages. A realistic model that can objectively evaluate the performance of government-funded research institutes was proposed using the AHP technique.

A Strategic Development of Ulsan Port Using SWOT/AHP Method (SWOT/AHP를 이용한 울산항의 전략적 발전방향에 관한 연구)

  • BAEK, In-Hum
    • Journal of Fisheries and Marine Sciences Education
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    • v.21 no.2
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    • pp.325-334
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    • 2009
  • The aims of this study is to suggest the strategic development plan of Ulsan Port using SWOT/AHP method. In order to do this, 16 detailed factors for SWOT Matrix were identified both from previous studies and from brainstorming professionals of the port and these made into a 3 level hierarchy structure. AHP method identified the relative weight of SWOT level as threat(0.311), opportunity(0.259), strength(0.218) and weakness(0.212), also the composite relative weight of detailed factors as recession of global economy(0.125), strengthening of economic function in port(0.085), insufficiency of port facilities(0.080) and a government regulation of port management(0.075). As a result, the study suggests S/T strategy, W/T strategy, S/O strategy, W/O strategy as a strategic development plan of the Ulsan Port.

Supplier Evaluation in Green Supply Chain: An Adaptive Weight D-S Theory Model Based on Fuzzy-Rough-Sets-AHP Method

  • Li, Lianhui;Xu, Guanying;Wang, Hongguang
    • Journal of Information Processing Systems
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    • v.15 no.3
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    • pp.655-669
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    • 2019
  • Supplier evaluation is of great significance in green supply chain management. Influenced by factors such as economic globalization, sustainable development, a holistic index framework is difficult to establish in green supply chain. Furthermore, the initial index values of candidate suppliers are often characterized by uncertainty and incompleteness and the index weight is variable. To solve these problems, an index framework is established after comprehensive consideration of the major factors. Then an adaptive weight D-S theory model is put forward, and a fuzzy-rough-sets-AHP method is proposed to solve the adaptive weight in the index framework. The case study and the comparison with TOPSIS show that the adaptive weight D-S theory model in this paper is feasible and effective.