• The Korean Journal of Applied Statistics
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• v.35 no.4
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• pp.469-484
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• 2022

Since a large text corpus contains hundred-thousand unique words, text data is one of the typical large-dimensional data. Therefore, various feature selection methods have been proposed for dimension reduction. Feature selection methods can improve the prediction accuracy. In addition, with reduced data size, computational efficiency also can be achieved. The chi-square statistic and the information gain are two of the most popular measures for identifying interesting terms from text data. In this paper, we investigate the theoretical properties of the chi-square statistic and the information gain. We show that the two filtering metrics share theoretical properties such as non-negativity and convexity. However, they are different from each other in the sense that the information gain is prone to select more negative features than the chi-square statistic in imbalanced text data.

• 대한공업교육학회지
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• v.33 no.1
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• pp.67-91
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• 2008

The purpose of this research is to find the identity through the inductive analysis on the curriculum of the industrial high schools in Gyeonggi province. The departments of electricity, electron, and correspondence of the 22 industrial high schools in Gyeonggi province are selected as the subject school of this research. The result of this research is as follows. First, 11 out of 18 industrial schools currently arrange larger completion unit of special curriculum than common one, and 2 out of 4 general high schools do. Second, industrial schools reduced 2-4 units of required subjects of the departments, general high schools did 2 units. 11 out of 18 industrial schools arranged larger student's elective subjects than school's in the completion unit of common curriculum, and 3 out of 4 general high schools did. 31 out of 32 departments of 18 industrial schools arranged larger student's elective subjects than school's in the completion unit of common curriculum. Third, 4 out of 18 industrial schools used the certified textbooks for newly organized subjects. But 25 departments of 15 schools out of 36 departments of 22 schools changed the industrial departments into high-tech ones. Fourth, in the classification of the school curriculum by 3-type curriculum, 12 out of 18 industrial schools adopted employment-centered curriculum, 7 out of 18 schools did foundation-centered curriculum. 2 out of 4 general schools adopted employment-centered curriculum, 2 out of 4 schools did college preparation-centered curriculum. Therefore, Schools are estimated to have much effort to find their identities through the arrangement of school curriculum.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.1
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• pp.96-102
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• 2019

This study proposes basic information to make effective environments for social welfare education, revealing the reasons why students choose the social welfare major at Konyang Cyber University. We conducted qualitative research with 41 students in the social welfare department at Konyang Cyber University. The result of this research is as follows. First, most students chose their major to get a certificate that can benefit them in the near future. Second, they chose their major as a way to achieve renown, and to enhance the quality of their lives. Third, they desired to contribute to society through their social work. Finally, individual experiences and family background were also motives. Based on the research, to improve learning outcomes in social welfare education, the necessary learning strategies are as follows. First, goal-oriented learning is necessary for students who want to get the certificate. A practical curriculum needs to contain both practical skills and professional knowledge applicable to the social work field. Second, education for students who choose the major to gain fame, and to develop their lives, requires generation-integrated education to help them review their lives and find their own meaning in life. Third, education for students who choose the major for a practical social contribution has to contain volunteer training that can lead them to be professional volunteers in society. Fourth, education for students who choose the major based on their personal experiences and their family background needs to deal with case management, which discovers the recipients who need help in society and the students who can achieve visible outcomes after all.

• 대학교육
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• s.142
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• pp.14-18
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• 2006

'99학년도 부터 본격적으로 시행된 학부제는 현재 많은 문제에 직면해 있으며 특히 학생들에 의한 전공 학과 선택권 보장은 실질적인 허구임이 드러났다. 학부제가 당초의 취지를 제대로 살리지 못하고 있다면 지체 없이 학과별 모집 단위로 환원되어야 하며 학문 분야의 성격과 각 대학의 특성에 맞추어 해당 대학에서 학부제 실시 여부를 판단할 수 있게 해야 한다. 더불어 그에 따른 책임 또한 각 대학이 스스로 질 수 있게 해야 할 것이다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.2
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• pp.725-733
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• 2012

This research, targeting the college students majoring in health administration science in Kwangju & Chonnam, is aimed at understanding their satisfaction with majors according to general, relationship, consciousness, and subject satisfaction, and looking into the correlation between the satisfaction and further career choices. This research set the 270 prospective graduates its study subjects based on convenience sampling. It was found that the number of students who want to choose their further major-related careers as medical records technician was greatest among the research subjects, of whom 62.4% were satisfied with their major subject while there existed a little difference in major satisfaction by further career. In addition, the students who want to choose the career of medical records filer showed higher satisfaction with their major subject than those who want to choose other-major-related careers. In general characteristics among the influential factors of major satisfaction in major-related career choices of a students of health administration science department, the 2nd year classes' major satisfaction was found to be 4.13 times as high as the 3rd year classes while the major satisfaction of the group choosing their major subject spontaneously was found to be 8.04 times as significantly high as the group choosing their major subject involuntarily. As a result of the analysis of the influence on major satisfaction among the sub-province of major satisfaction, it was found that the group having high consciousness satisfaction was 3.93 times as significantly high as the group having low consciousness satisfaction. A logistic analysis of the influence of major satisfaction on further career choices, the major satisfaction of those wishing to choose their major-related career as a medical records technician was 2.06 times as significantly high as those who didn't choose a medical records filer as their career choice while the major satisfaction of the group spontaneously choosing the career of a medical records technician was 4.51 times as significantly high as that of the group involuntarily choosing the career of a medical records technician. There should be a plan for enhancing major satisfaction by each major-related career in consideration of the characteristics of health administration science department having diverse career choices.

• 한국벤처창업학회:학술대회논문집
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• 2020.11a
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• pp.33-37
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• 2020

최근 농업은 6차산업을 넘어 국민의 건강회복 및 유지증진을 도모하기 위하여 이용되는 다양한 농업·농촌자원의 활용과 이와 관련한 활동을 통해 사회적 또 는 경제적 부가가치를 창출하는 산업으로 치유농업을 들 수 있다. 현 코로나19로 인한 고립과 단절, 앞날을 예측하기 어려운 상황이 길어지면서 우울감을 느끼는 '코로나 블루(Blue)'를 넘어 우울과 불안 감정이 분노로 폭발하는 '코로나 레드(Red)'를 호소하는 이들마저 있다고 한다. 최근 한국건강증진개발원이 한국갤럽에 의뢰해 전국 만 성인 남녀대상으로 '코로나19로 인한 건강 상태'를 조사한 결과에 따르면 응답자의 40.7%가 코로나 블루를 "경험했다"고 답했는데 특히 여성(50.7%)의 경험 비율이 남성(34.2%)보다 높았다고 한다. 이에 따라 실내에서 반려동물이나 반려식물을 키우는 이가 급증하고 노년층은 실버 텃밭 정원프로그램을 통해 우울증이 크게 감소됐다. 이와 같이 치유농업은 자연친화적인 환경을 조성해 주고, 도시민의 농업에 대한 이해를 높이며 도시와 농촌이 상생하는데 이바지할 수 있기 때문에 지속적으로 발전시켜 나갈 필요가 있다. 본 연구에서는 치유농업시설의 이용의도를 가진 자를 대상으로 치유농업시설 선택속성에 주관적규범과 주도성향이 치유농업시설 이용의도에 미치는 영향을 살펴보고자 한다. 본 연구를 통해 치유농업시설을 이용하는 데에 있어 선택속성의 요소들에 대하여 파악하고 주관적규범과 주도성향에 따른 영향도 확인하여 치유농업시설 선택속성을 제공하고자 할 때 우선시해야 할 시사점을 파악하고자 한다.

• 한국노년학
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• v.37 no.2
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• pp.385-398
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• 2017

This study aims to identify the service quality perceived by Elderly Care Service users on the basis of 'SERVPERF model' targeting the service users, and verify the mediation effects of the choice which affects the relationship between information literacy and quality. For this, 208 elderly care comprehensive service users in Jeollabuk-do were analyzed as the targets using a structural equation. The results of this study are as follows. First, service users perceived the quality level to be very high. Second, user's information literacy has a significant effect on quality perception. Third, the effect of user 's information literacy on quality was partially mediated by choice. These results suggest that there is a need to provide enough information and opportunities for users to make choices in order to maintain a high quality of service.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.330-331
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• 2010

소프트웨어 아키텍처는 소프트웨어의 품질에 지대한 영향을 미치는 요소 중 하나이다. 소프트웨어 개발 생명주기 초기에 아키텍처를 분석하고 평가하지 않으면, 점점 품질결함을 발견하고 수정하는 비용이 증가한다. 기존 소프트웨어 아키텍처 분석 및 평가 방법은 아키텍처라는 상당히 추상화된 수준에서 분석 및 평가가 이루어지기 때문에 평가기준이 주관적이며, 선택된 아키텍처 후보들만으로 서로에게 미치는 품질속성의 영향을 파악하기 힘들다. 따라서 품질 속성 시나리오나 아키텍처 전략을 구현하기 위한 세부적인 아키텍처 전술들의 품질평가가 필요하다. 본 연구는 이러한 아키텍처 전술의 품질 평가를 위해, Q-SIG(Quantified Softgoal Interdependency Graph)을 이용한 품질속성과 이를 달성하기 위한 아키텍처 전술의 관계를 정성적, 정량적으로 표현한다. 또한 Bayesian Belief Network(BBN) 모델 구축을 통해 Q-SIG에서 표현할 수 없는 다수의 품질속성을 만족하는 아키텍처 전술들 간의 조합에 대해 분석하고, 평가하여 아키텍트가 소프트웨어 디자인 단계에서 높은 품질속성을 달성할 수 있는 아키텍처 전술들의 조합을 선택할 수 있는 방법을 제시한다.

• Journal of the Society of Disaster Information
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• v.10 no.3
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• pp.408-418
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• 2014

This study is to clarify the effect of security majoring students' loyalty on department to future direction and job choice to suggest basic data for supporting student to prepare more active school life and future. The research object is security majoring male/female students among Y university in Gyeonggi-do Y city, K university in Gyeongsangbuk-do G city, k university in Gyeonggi-do S city between 1 Fab 2012 to 20 Aug 2012 and we randomly extracted the sample. In this research, we performed exploratory factor analysis and used principal components analysis and selected varimax direct rotation method to prove the reasonability of the contents. We then use the Cronbach's ${\alpha}$ value to measure the trust coefficient and during the process, the repeated or questions lack of correlation were deleted with judgment of researcher to improve trusty and reasonability.

• The Journal of the Korea Contents Association
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• v.21 no.3
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• pp.664-675
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• 2021

This study is to analyze the selection criteria for street dance institutes in the subjects of ordinary people and students majoring in street dance who select the institutes. Moreover, it aims to enhance the perception and values of street dance and to provide with the required data for the development of institutes that train street dance. To do so, a survey was conducted in the subjects of 300 street dance learners who went to the street dance institutes. Frequency analysis, reliability test, correlation analysis, and one-way analysis of variance (ANOVA) were performed using SPSS 18.0 Program with the collected data, and the results are as follows. In summary, training programs, services, and promotional environment were identified to be important criteria to select the street dance institutes by the learners while the low level of perception on the price was found.