• Title/Summary/Keyword: Association Method

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The Effects of Child Abuse Experience and Anger Expression on the Method of Resolving Interpersonal Conflicts (아동학대경험과 분노표출이 대인간 갈등해결방식에 미치는 영향)

  • Lee, Seo-Won;Han, Ji-Sook
    • Journal of the Korean Home Economics Association
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    • v.49 no.5
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    • pp.71-80
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    • 2011
  • The purpose of this study was to investigate the mediating effects of anger expression on the relationship between child abuse experience and the method of resolving interpersonal conflicts. For the study, 3,050 4th to 6th grade children from Kyunggi-do were sampled. The collected data were analyzed using simple regression, multi regression and a path analysis. This study showed that child abuse experience influenced the method of resolving the interpersonal conflicts via the expression of anger. In other words, anger expression could function as a pathway between child abuse experience and the method of resolving interpersonal conflicts.

Topology Decision of Truss Structures by Advanced Evolutionary Structural Optimization Method (개선된 진화론적 구조최적화에 의한 트러스 구조물의 형태결정)

  • Jeong, Se-Hyung;Pyeon, Hae-Wan
    • Journal of Korean Association for Spatial Structures
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    • v.3 no.3 s.9
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    • pp.67-74
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    • 2003
  • The purpose of this study is to improve convergence speed of topology optimization procedure using the existing ESO method and to deal with topology decision of the truss structures according to a boundary condition, such as cantilever type. At the existing ESO topology optimization procedure for the truss structures, the adjustment of member sizes according to target stress has been executed by increasing or reducing a very small value from each member size. In this case, it takes too much iteration till convergence. Accordingly, it is practically hard to obtain optimum topology for a large scale structures. For that reason, it is necessary to improve convergence speed of ESO method more effectively. During the topology decision procedure, member sizes are adjusted by calculating approximate solution for member sizes corresponding to the target stress at every step, the new member sizes are adjusted by such method are applied in FEA procedure of next step.

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An Application of Benchmarking Method to Improve Port's Competitiveness (항만의 경쟁력제고를 위한 벤치마킹기법 적용에 관한 연구)

  • 방희석;김새로나
    • Journal of Korea Port Economic Association
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    • v.18 no.1
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    • pp.85-106
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    • 2002
  • Across many industries, benchmarking is considered useful method to improve their service quality and achieve competitive advantage. Benchmarking, especially, has emerged as an increasingly important approach to improving the performance of logistics system and enables successful logistics services and doing good business in logistics services. There are no, however, literature approach for the relationship between benchmarking and port. It is the highest worth researching the application of benchmarking method on the port, since port is the most important component in supply Chain. Therefore, this paper tries to demonstrate the application of the benchmarking method on the port. To do this study, the literature approach developed by several researchers for logistics benchmarking is used as the basic framework. In addition, the following studies are executed: First, the survey of previous studies on logistics benchmarking. Second, finding the indicator and selecting the target in the port benchmarking. Third, the systematic execution schemes of the port benchmarking. Finally, based on the above studies, this paper provides a background for discussions on the future prospects for the application of the benchmarking method on the port.

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Box Feature Estimation from LiDAR Point Cluster using Maximum Likelihood Method (최대우도법을 이용한 라이다 포인트군집의 박스특징 추정)

  • Kim, Jongho;Yi, Kyongsu
    • Journal of Auto-vehicle Safety Association
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    • v.13 no.4
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    • pp.123-128
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    • 2021
  • This paper present box feature estimation from LiDAR point cluster using maximum likelihood Method. Previous LiDAR tracking method for autonomous driving shows high accuracy about velocity and heading of point cluster. However, Assuming the average position of a point cluster as the vehicle position has a lower accuracy than ground truth. Therefore, the box feature estimation algorithm to improve position accuracy of autonomous driving perception consists of two procedures. Firstly, proposed algorithm calculates vehicle candidate position based on relative position of point cluster. Secondly, to reflect the features of the point cluster in estimation, the likelihood of the particle scattered around the candidate position is used. The proposed estimation method has been implemented in robot operating system (ROS) environment, and investigated via simulation and actual vehicle test. The test result show that proposed cluster position estimation enhances perception and path planning performance in autonomous driving.

The control method for axial cracks on NATM tunnel linings (NATM 터널라이닝 종방향 균열 제어공법)

  • Zheng, Xiu-Mei;Park, Inn-Joon
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.11 no.4
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    • pp.437-447
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    • 2009
  • It is easily found by several references of NATM that the cracks on the lining concrete of NATM are more developed than those of the conventional tunnel methods. Based on the results of research, the new method is proposed to control and protect the axial cracks on the tunnel linings. Also, the efficiency of proposed method is evaluated using the Distinct Element Method.

Application of Random Forests to Association Studies Using Mitochondrial Single Nucleotide Polymorphisms

  • Kim, Yoon-Hee;Kim, Ho
    • Genomics & Informatics
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    • v.5 no.4
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    • pp.168-173
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    • 2007
  • In previous nuclear genomic association studies, Random Forests (RF), one of several up-to-date machine learning methods, has been used successfully to generate evidence of association of genetic polymorphisms with diseases or other phenotypes. Compared with traditional statistical analytic methods, such as chi-square tests or logistic regression models, the RF method has advantages in handling large numbers of predictor variables and examining gene-gene interactions without a specific model. Here, we applied the RF method to find the association between mitochondrial single nucleotide polymorphisms (mtSNPs) and diabetes risk. The results from a chi-square test validated the usage of RF for association studies using mtDNA. Indexes of important variables such as the Gini index and mean decrease in accuracy index performed well compared with chi-square tests in favor of finding mtSNPs associated with a real disease example, type 2 diabetes.

Association Rule by Considering Users Web Site Visiting Time (사용자 웹 사이트 방문 시간을 고려한 연관 규칙)

  • Kang, Hyung-Chang;Kim, Chul-Soo;Lee, Dong-Cheol
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.29 no.2
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    • pp.104-109
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    • 2006
  • We can offer suitable information to users analyzing the pattern of users. An association rule is one of data mining techniques which can discover the pattern. We use an association rule which considers the web page visiting time and we should the pattern analyse of users. The offered method puts the weights in Web page visiting time of the user and produces an association rule. Weight is web page visiting time unit divide to total of web page visiting time. We offer rather meaningful result the association rule by Apriori algorithm. This method that proposes in the paper offers rather meaningful result Apriori algorithm

An Efficient Modeling Method for Open Cracked Beam Structures (열린 균열이 있는 보의 효율적 모델링 방법)

  • Kim, M. D.;Park, S. W.;S. W. Hong;Lee, C. W.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2002.11a
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    • pp.372.2-372
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    • 2002
  • This paper presents an efficient modeling method fur open cracked beam structures. An equivalent bending spring model is introduced to represent the structural weakening effect in the presence of open cracks. The proposed method adopts the exact dynamic element method (EDEM) to avoid the difficulty and numerical errors in association with re-meshing the structure. The proposed method is rigorously compared with a commercial finite element code. (omitted)

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Numerical Simulation of Dam-Break Problem with Cut-cell Method (분할격자를 이용한 댐붕괴파의 수치해석)

  • Kim, Hyung-Jun;Yoo, Je-Seon;Lee, Seung-Oh;Cho, Yong-Sik
    • Proceedings of the Korea Water Resources Association Conference
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    • 2008.05a
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    • pp.1752-1756
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    • 2008
  • A simple, accurate and efficient mesh generation technique, the cut-cell method, is able to represent an arbitrarily complex geometry. Both structured and unstructured grid meshes are used in this method. First, the numerical domain is constructed with regular Cartesian grids as a background grid and then the solid boundaries or bodies are cut out of the background Cartesian grids. As a result, some boundary cells can be contained two numerical conditions such as the flow and solid conditions, where the special treatment is needed to simulate such physical characteristics. The HLLC approximate Riemann solver, a Godunov-type finite volume method, is employed to discretize the advection terms in the governing equations. Also, the TVD-WAF method is applied on the Cartesian cut-cell grids to stabilize numerical results. Present method is validated for the rectangular dam break problems. Initially, a conventional grid is constructed with the Cartesian regular mesh only and then applied to the dam-break flow simulation. As a comparative simulation, a cut-cell grids are applied to represent the flow domain rotated with arbitrary angles. Numerical results from this study are compared with the results from the case of the Cartesian regular mesh only. A good agreement is achieved with other numerical results presented in the literature.

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A Study on the Evaluation Method of the Life-Time Household Work (주부의 생애가사노동가치의 평가방법에 관한연구)

  • 김선희
    • Journal of the Korean Home Economics Association
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    • v.32 no.5
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    • pp.55-66
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    • 1994
  • The aim of this study is to propose the reasonable method of evaluation on the value of the life-time household work. for homemaker claim her share in the matrimonial property in relation to her life-time household work and to provide the basic data to measuring proper compensation for homemaker and calculating of the donation tax and inheritance tax amount. Tom compare the difference of the method of evaluation on the value of the life-time household work is evaluted by three methods: the model of the life-time household work which is reflected major variables in the FLC frame work marital stage, total marital period. The major findings are as follows: 1) Among the three evaluation me? The method of Total marital period is evaluatied the lowest value of the life-time household work. 2) The evaluation method of marital stage is more resonable method than the method of total marital period habe a convenience of evaluation but it dos'nt reflected major variables which influence the value of life-time household work. 3) the most resonable method of evaluation on the value of the life-time household work is revealed the model of the life-time household work which is reflected major variables in the FLC frame work the age of first and last offspring marital period.

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