• Title, Summary, Keyword: AHP

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Deterministic Optimal Simulation of Spatial Growth Form for Urbanized Area Using CA Model and Simplified WSM-AHP Techniques (CA기법과 WSM-AHP 간편법을 이용한 도시확산의 결정론적 최적 모의)

  • Kim, Dae-Sik
    • Journal of Korean Society of Rural Planning
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    • v.14 no.2
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    • pp.55-64
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    • 2008
  • This study aims to analyze the sensitivity of WSM(weighted scenario method)-AHP method according to variation of nonlinear exponent for accessibility criteria, which are used to make urbanization potential maps with the optimal weighting value for multiple criteria in grid-based GIS technique. Besides this study tried to develop WSM-AHP2 which is simplified by using rank of the potential value for each scenario. The two methods were applied to the test area, Suwon city located south area of Seoul, with time series land-use maps of 1986 and 1996. The evaluation system of urbanization potential have 7 criteria including 6 accessibility criteria. The results of WSM-AHP2, the optimal weighting values and their corresponding potential maps, have almost similar with those of WSM-AHP. In the application of CA(cellular automata) model for expansion of urbanized area using the three potential maps by WSM-AHP, WSM-AHP2, and specialists's AHP evaluation, it also showed that the accuracy of simulation for actual urban area is the highest in the potential map of WSM-AHP, followed by WSM-AHP2 and specialists's AHP evaluation. From the results of this study, WSM-AHP and simplified WSM-AHP2 will be used to generate the optimal potential maps for land-use planning in urban fringe area.

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 Hybrid Method of MultiAttribute Utility Theory and Analytic Hierarchy Process for R&D Projects' Priority Setting. (MAUT/AHP를 이용한 연구개발사업 우선순위 선정방법)

  • 김정흠;박주형
    • Proceedings of the Technology Innovation Conference
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    • pp.245-265
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    • 1999
  • MAUT and AHP are widely used for quantification of subjective judgements in various fields of decision making. This study focuses on the introduction and application of MAUT/AHP method which is a hybrid of MAUT and AHP techniques in R&D project priority setting. This hybrid model can clarify each factors' contribution using MAUT method and can reduce the number of pairwise comparisons of AHP method. This study applies AMUT/AHP method to the evaluation of R&D projects in a Government - funded research institute. To evaluate R&D projects, six evaluation factors are derived. SMART(Simple MultiAttribute Rating Technique) and DVM(Difference Value Measurement ) out of many MAUT methods are used to design the utility function ad AHP is used to allocate the weights among evaluation factors. The major findings of this study can be summarized as follows. First, the SMART/AHP and the DVM/AHP have the same results with the SMART and the DVM, and they are different results with AHP. It is very hard to decide which one is better. Second, MAUT/AHP's strength is analyzed. MAUT reflects utility values of evaluators to alternatives and AHP results objective and consistent weights of factors through pariwise comparisons. Third, its possible application fields are proposed. It is applicable to subjective decision making problems with high complexity and inter-independent factors.

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Analysis of Landslide Hazard Area using Logistic Regression Analysis and AHP (Analytical Hierarchy Process) Approach (로지스틱 회귀분석 및 AHP 기법을 이용한 산사태 위험지역 분석)

  • Lee, Yong-jun;Park, Geun-Ae;Kim, Seong-Joon
    • Journal of The Korean Society of Civil Engineers
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    • v.26 no.5D
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    • pp.861-867
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    • 2006
  • The objective of this study is to analyze the landslide hazard areas by combining LRA (Lgistic Regression Analysis) and AHP (Analytic Hierarchy Program) methods with Remote Sensing and GIS data in Anseong-si. In order to classify landslide hazard areas of seven levels, six topographic factors (slope, aspect, elevation, soil drain, soil depth, and land use) were used as input factors of LRA and AHP methods. As results, high-risk areas for landslide (1 and 2 levels) by LRA and AHP of its own were classified as 46.1% and 48.7%, respectively. A new method by applying weighting factors to the results of LRA and AHP was suggested. High-risk areas for landslide (1 and 2 levels) form the new method was classified as 58.9%.

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학술 1 - 축산물 위생 제언

  • Yang, Il;Seo, Dong-Jin;Choe, Nak-Chun;Seo, Hyeon-Jeong;Song, Seung-Cheol;Song, Han-Lee;Lee, Byeong-Cheon
    • Journal of the korean veterinary medical association
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    • v.53 no.5
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    • pp.328-331
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    • 2017
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Mathematical Foundations of AHP and Practice for Purposes of Mathematical Teaching (AHP의 수학적 배경과 수학교육 목적의 실천)

  • 함형범
    • Journal for History of Mathematics
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    • v.17 no.2
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    • pp.21-32
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    • 2004
  • AHP is utilized in various fields since its mathematical theory is simple and it can be applied practically and easily. In this paper we study the mathematical foundations of the AHP. And we discuss that the AHP practices purpose of mathematical teaching. Also, we propose an alternative plan for teaching-learning of mathematics based on the discussion.

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The Site Analysis for Crop Cultivation Using GIS-Based AHP Method (GIS 기반 AHP 기법을 이용한 작물재배 적지분석)

  • Kim, Tae Jun;Lee, Geun Sang
    • Journal of The Korean Society of Civil Engineers
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    • v.26 no.4D
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    • pp.695-702
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    • 2006
  • In GIS-based Spatial Decision-making Support System (SDSS), the Boolean logic by conventional simple overlay method contains two problems. One is losing lots of information in analysis process, the other is unable to reflect of weighting values between evaluated items. Therefore, evaluation system as Analytic Hierarchy Process (AHP) needs to improve these problems effectively. The purpose of this study is to provide the benefit of AHP method and GIS spatial analysis in site analysis for crop cultivation. First, the weighting value of AHP for topography, distribution grade of water, property of soil and slope items are evaluated throughout survey to experts of soil, crop and agricultural management fields. On the basis of these weighting value of AHP by items, site suitability analysis for black raspberry cultivation is performed. To estimate the benefit of AHP method, the current cultivating map of black raspberry is constructed in Ssangchi-myeon district. In comparison with site analysis of Boolean logic, site analysis of AHP method shows more realistic.

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An AHP/DEA Hybrid Model for Efficiency Evaluation of Container Terminal (컨테이너터미널 효율성 평가를 위한 AHP/DEA 통합모형)

  • Kim, Seon-Gu;Choi, Yong-Seok
    • Journal of Korea Port Economic Association
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    • v.28 no.2
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    • pp.179-194
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    • 2012
  • In this study, we compared the efficiency of container terminals using DEA. To do this, we designed an AHP/DEA hybrid model using AHP and DEA, and evaluated the efficiency by comparing the container terminal operation company in Gwangyang(KEC, KIT, GICT) and Busan(HBCT, DPCT, KBCT, UPT, Gamman, PNC, PNIT, HJNC, HPNT). The proposed model can control the number of selected promising container terminal by applying DEA-AR model. This model can also improve the credibility of analysis by using objective weights through the AHP application to efficiency evaluation data and normalizing the evaluation data to apply AHP and DEA. The model assumes inputs to be container crane, transfer crane, yard tractor, and reach stacker and output as container traffic. The result shows that DPCT was an efficient DMU.

Analysis of Landslide Hazard Area using Logistic Regression/AHP - Anseong-si - (로지스틱 회귀분석 및 AHP 기법을 이용한 산사태 위험지역 분석 - 안성시를 대상으로 -)

  • Lee, Yong-Jun;Park, Geun-Ae;Kim, Seong-Joon
    • Proceedings of the Korea Water Resources Association Conference
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    • pp.2001-2005
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    • 2006
  • 우리나라는 매년 집중호우로 인한 산사태로 인해 인적, 물질적 피해를 일으킨다. 반복적인 산사태의 피해를 방지 하기위해서는 산사태 예측 시스템이 필요하다. 본 연구에서는 안성시를 대상으로 GIS와 RS 자료를 활용하여 산사태 위험지를 분석하고자 Logistic 회귀분석 방법과 AHP 기법을 이용하였다. Logistic 회귀분석과 AHP 기법에는 6개의 인자(경사, 경사향, 고도, 토양배수, 토심, 토지이용)를 사용하여, 7등급으로 산사태 위험도를 분류하였다. Logistic 회귀분석 방법과 AHP 기법을 이용한 산사태 위험지도를 표본 자료와 비교하면 산사태가 발생한 표본에서 산사태 위험성이 높은(1-2등급)지역이 Logistic 회귀분석에서는 46.1% AHP 기법은 48.7%로 분류되어 AHP 기법이 분류도가 높다고 분석 되었다. 하지만 Logistic 회귀분석과 AHP 기법은 서로 분석 과정의 차이를 가지고 있기 때문에 Logistic 회귀분석과 AHP기법을 적용한 결과에 동일 가중치를 부여한 후 7개 등급으로 재분류(reclass)하여 산사태 위험지역을 추출 할 수 있는 방법론을 제시하였다. 그 결과 산사태가 발생한 표본에서 1-2등급지역이 58.9%로 분석되어 분류정확도를 높일 수 있었다.

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