• Title/Summary/Keyword: Test Selection

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Selection of Important Variables in the Classification Model for Successful Flight Training (조종사 비행훈련 성패예측모형 구축을 위한 중요변수 선정)

  • Lee, Sang-Heon;Lee, Sun-Doo
    • IE interfaces
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    • v.20 no.1
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    • pp.41-48
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    • 2007
  • The main purpose of this paper is cost reduction in absurd pilot positive expense and human accident prevention which is caused by in the pilot selection process. We use classification models such as logistic regression, decision tree, and neural network based on aptitude test results of 505 ROK Air Force applicants in 2001~2004. First, we determine the reliability and propriety against the aptitude test system which has been improved. Based on this conference flight simulator test item was compared to the new aptitude test item in order to make additional yes or no decision from different models in terms of classification accuracy, ROC and Response Threshold side. Decision tree was selected as the most efficient for each sequential flight training result and the last flight training results predict excellent. Therefore, we propose that the standard of pilot selection be adopted by the decision tree and it presents in the aptitude test item which is new a conference flight simulator test.

Exploring the Core Keywords of the Secondary School Home Economics Teacher Selection Test: A Mixed Method of Content and Text Network Analyses (중등학교 가정과교사 임용시험의 핵심 키워드 탐색: 내용 분석과 텍스트 네트워크 분석을 중심으로)

  • Mi Jeong, Park;Ju, Han
    • Human Ecology Research
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    • v.60 no.4
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    • pp.625-643
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    • 2022
  • The purpose of this study was to explore the trends and core keywords of the secondary school home economics teacher selection test using content analysis and text network analysis. The sample comprised texts of the secondary school home economics teacher 1st selection test for the 2017-2022 school years. Determination of frequency of occurrence, generation of word clouds, centrality analysis, and topic modeling were performed using NetMiner 4.4. The key results were as follows. First, content analysis revealed that the number of questions and scores for each subject (field) has remained constant since 2020, unlike before 2020. In terms of subjects, most questions focused on 'theory of home economics education', and among the evaluation content elements, the highest percentage of questions asked was for 'home economics teaching·learning methods and practice'. Second, the network of the secondary school home economics teacher selection test covering the 2017-2022 school years has an extremely weak density. For the 2017-2019 school years, 'learning', 'evaluation', 'instruction', and 'method' appeared as important keywords, and 7 topics were extracted. For the 2020-2022 school years, 'evaluation', 'class', 'learning', 'cycle', and 'model' were influential keywords, and five topics were extracted. This study is meaningful in that it attempted a new research method combining content analysis and text network analysis and prepared basic data for the revision of the evaluation area and evaluation content elements of the secondary school home economics teacher selection test.

Recruitment and Selection of Police Officials in the United States -the System and it's Implications- (미국 경찰관 모집·선발제도의 특징 및 함의)

  • Park, Dong-Kyun
    • The Journal of the Korea Contents Association
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    • v.11 no.5
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    • pp.384-392
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    • 2011
  • Recruitment and selection are separate but mutually reinforcing processes. The goal of recruitment is to attract the largest number of applicants possible to apply to the agency, and selection is the process of weeding out unqualified candidates and identifying qualified candidates. In this context, the recruitment and selection system of police officials is an important issue because it affects their future performance as police officers on the job, especially their policing skills, perception of society, occupational ethics. This study suggested the characteristics of U. S. recruitment and selection system of police officials. In the U. S, each police agency sets up its own recruitment and selection standards and procedures. However, recruitment and selection process follows a certain sequence : receiving application, psychological examination, background check, polygraph test, drug screening, interview, physical agility, and medical test. Special characteristic of American police system regarding recruitment and selection is that many law enforcement agencies use a polygraph test to ensure the integrity of the candidates. Another interesting screening process is a drug test because many Americans abuse illegal drugs. A candidate officer must submit urine or a hair sample for screening test. Police human resources specialists should continually identify the most innovative tests and approaches recruit and select police officers. Recruitment and selection strategies should increasingly attract and retain those officers who have the attributes to work in a community-oriented policing environment.

A Study on the Relationship between Clothing Selection Behavior and Personal variables of Adult Women (성인여성의 의복선택행동과 관련변인연구 -자아개념을 중심으로-)

  • Kim So-Yeun;Cho Phil-Gyo
    • Journal of the Korean Society of Clothing and Textiles
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    • v.12 no.2 s.27
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    • pp.159-167
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    • 1988
  • The purpose of this study was to investigate the relationship between Self-concept, Personal variables and Clothing selection behavior. Self-concept was measured with Choi Jung Hun's 'Perceptual Orientation Scale' and Clothing selection behavior scale was prepared for this study. The questionnaire were completed by 389 women in Taegu. Statistical analysis was performed using F-test, Scheffe's test. The results were as follows; 1. There was significant relationship between Self-concept and Clothing selection behavior. (individuality, conformity, economy, modesty). 2. There was significant difference in clothing selection behavior variables according to age. 3. There was significant difference in individuality and economy according to marital status. 4. There was significant difference in individuality, economy and modesty according to education level. 5. There was significant difference in clothing selection behavior variables according to monthly clothing expenses.

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a improved neighborhood selection of simulated annealing technique for test data generation (테스트 데이터 생성을 위한 개선된 이웃 선택 방법을 이용한 담금질 기법 기술)

  • Choi, Hyun Jae;Lee, Seon Yeol;Chae, Heung Seok
    • Journal of Software Engineering Society
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    • v.24 no.2
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    • pp.35-45
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    • 2011
  • Simulated annealing has been studied a long times. And it is one of the effective techniques for test data generation. But basic SA methods showed bad performance because of neighborhood selection strategies in the case of large input domain. To overcome this limitation, we propose new neighborhood selection approach, Branch Distance. We performs case studies based on the proposed approach to evaluate it's performance and to compare it whit basic SA and Random test generation. The results of the case studies appear that proposed approach show better performance than the other approach.

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A study on the relationship between personality and the factors for clothing selection among the high school girls (여고생의 성격특색과 의복선택 요인과의 상관관계 연구 - 서울 시내 여고생을 중심으로 -)

  • 정하신
    • Journal of the Korean Home Economics Association
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    • v.23 no.4
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    • pp.1-7
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    • 1985
  • The aim of this study is to find out the relation-ship between personality and te factors for clothing selection. For the test, 396 high school girl students in Seoul were selected, respectively. The general personality test sheets by Kim Giseok and the questionnaire besed on Park Eunju's study on the factors for clothing selection were given to the sample group. RESULTS : 1. Behavior of clothing selection according to expression of individuality is sign ificantly correlated with ascendancy and sociability at the level of .001, and with emotional stability at .50. 2. Behavior of clothing selection according to utility is significantly correlated with resopnsibility and emotional stability at the level of .01. 3. Behavior of clothing selection according to economy is significantly correlated with ascendancy and self-confidence at the level of .01, and with responsibility and sociablity at .05. 4. Behavior of clothing selection according to modesty is significantly correlated with ascendancy and sociability at level of .001, and with self-confidence at .01. 5. Behavior of clothing selection according to conformity is significantly correlated with ascendancy, emothional stability, and self-confidence at the level of .001, and with sociability at .05.

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A Study on Female College Students's Clothing Selection Criteria according Their Life Styles­Focused on Chungju city (여대생의 생활양식에 따른 의복선택기준에 관한 연구­청주시를 중심으로­)

  • 김순심;김선화
    • Journal of the Korea Fashion and Costume Design Association
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    • v.2 no.1
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    • pp.51-74
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    • 2000
  • The purposes of the study were to investigate the differences of female students' clothing selection criteria and their life styles according to their demographic data and to examine the differences of their clothing selection criteria according to their life styles. The data were collected from 400 female college students in Chungju city through self-administerd questionnaires, and were analyzed by frequencies, Cronbach' s α, F­test, Factor Analysis, Cluster Analysis, one way ANOVA and Duncan Test. The results of the study were as follows: There were significant differences between variables of clothing selection criteria according to student's major, father's education level, family's monthly income, student's monthly expenditure on clothing and her companion when purchasing her clothing. Life styles were classified five types. The dimensions of life style were significantly different according to student's major and monthly expenditure on clothing. There were significantly different between life style dimensions and clothing selection criteria.

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Examination Questions Selection Algorithm in Web-based Engineer Test Education System (웹 기반 기사시험 학습 시스템에서의 문제 출제 알고리즘)

  • Kim Eun-Jung
    • Journal of Korea Society of Industrial Information Systems
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    • v.9 no.3
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    • pp.11-18
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    • 2004
  • It is making researches in questions selection method for examination in web-based education system. Most questions made for these remote examinations use methods of making questions using fixed questions or randomly using item pools or automatically using degree of difficulty. This paper proposes a new examination questions selection algorithm in web-based education system for engineer test. Generally, Engineer test is characterized by adequate examination questions selection for degree of difficulty and equally between all units. Therefore this algorithm selected examination questions equally well as regards degree of difficulty and distribution between all units. This algorithm providers more effective education examination method as compared with previous algorithm.

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Gene selection method using neural networks and genetic algorithm and its applications to classification of cancers (신경회로망과 유전 알고리즘을 이용한 유전자 추출법과 이의 암 분류법에의 적용)

  • Cho, Hyun-Sung;Kim, Tae-Seon;Jeon, Sung-Mo;Wee, Jae-Woo;Lee, Chong-Ho
    • Proceedings of the KIEE Conference
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    • 2002.07d
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    • pp.2815-2817
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    • 2002
  • Classification method of cancers using cDNA microarrays data was developed using genetic algorithms and neural networks. For gene selection, 2308 genes were ranked using genetic algorithms, and selected by frequency number of selection from 1000 of genetic iterative runs. To calculate fitness values, artificial neural networks are used as classifier. The small, round blue cell tumors (SRBCTs) which is difficult to distinguish via pathological single test was used as test diseases for classification, and the test results showed the 96% of exact classification capability for 25 test samples.

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Effects of Self-Esteem and Body Satisfaction of Middle-Aged Women on their Clothing Satisfaction and Clothing Selection Criteria (중년 여성 소비자의 자아존중감과 신체만족도가 의복 만족도와 의복선택기준에 미치는 영향)

  • Chung, Sung Jee
    • Fashion & Textile Research Journal
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    • v.15 no.1
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    • pp.84-94
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    • 2013
  • The study analyzes the effects of self-esteem on body satisfaction, clothing satisfaction, and clothing selection criteria, the effects of body satisfaction on clothing satisfaction and clothing selection criteria, and the effects of clothing selection criteria on clothing satisfaction. The questionnaire developed by the researcher was distributed to 160 women between 40 and 65 years of age in Seoul or Gyeonggi-do. One hundred fifty one questionnaires were used in the final analysis. The data were analyzed by common factor analysis, multiple linear regression, t-test, ANOVA, and Tukey's test using SPSS 18.0/Windows. The results demonstrate that clothing selection criteria is classified into design, quality, practicality, and economics. There was a significant effect of self-esteem on body satisfaction, and significant effects of body satisfaction on clothing satisfaction and on factors of design, quality, economics in clothing selection criteria. Factors such as design, practicality, and economics contributed to clothing satisfaction. Significant differences were found in self-esteem between age groups as well as self-esteem and body satisfaction among groups according to education level and monthly income.