• Title/Summary/Keyword: 종단적 자료

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Domain-Specific Terminology Mapping Methodology Using Supervised Autoencoders (지도학습 오토인코더를 이용한 전문어의 범용어 공간 매핑 방법론)

  • Byung Ho Yoon;Junwoo Kim;Namgyu Kim
    • Information Systems Review
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    • v.25 no.1
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    • pp.93-110
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    • 2023
  • Recently, attempts have been made to convert unstructured text into vectors and to analyze vast amounts of natural language for various purposes. In particular, the demand for analyzing texts in specialized domains is rapidly increasing. Therefore, studies are being conducted to analyze specialized and general-purpose documents simultaneously. To analyze specific terms with general terms, it is necessary to align the embedding space of the specific terms with the embedding space of the general terms. So far, attempts have been made to align the embedding of specific terms into the embedding space of general terms through a transformation matrix or mapping function. However, the linear transformation based on the transformation matrix showed a limitation in that it only works well in a local range. To overcome this limitation, various types of nonlinear vector alignment methods have been recently proposed. We propose a vector alignment model that matches the embedding space of specific terms to the embedding space of general terms through end-to-end learning that simultaneously learns the autoencoder and regression model. As a result of experiments with R&D documents in the "Healthcare" field, we confirmed the proposed methodology showed superior performance in terms of accuracy compared to the traditional model.

A Study on the Relationship between Providing Care for Grandchildren and the Health of Middle and Old-aged Women (손자녀돌봄 유형과 조모의 건강에 관한 연구)

  • Kim, Hye Jin
    • Korean Journal of Social Welfare
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    • v.69 no.1
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    • pp.59-77
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    • 2017
  • The purpose of this study is to understand Korean women in later life by identifying the relationships between providing care for grandchildren and the health of women who aged above 50 years old. Focusing on the longitudinal patterns of providing care of grandchildren and physical and psychological health, this study used data from the second, third, fourth, and fifth waves of Korean Retirement and Income Study(KReIS) and regression to analyze the data. The following results were found. First, women who stopped providing care for grandchildren were more likely to have higher physical health status in later life than those who providing no care between the second wave to the fourth wave of the KReIS(p < .05). In addition, women who have continuously provided care for grandchildren were more likely to have lower physical health status at marginally significant level. However, there is no significant relationship between providing care for grandchildren and women's psychological health status. The findings of this study suggest that there are the different findings for the relationships between providing care for grandchildren and physical health status and psychological health status based on the longitudinal patterns of providing care of grandchildren. Lastly this paper discusses implications for future researcher and social welfare practitioners.

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A Study on the Longitudinal Trajectories of Use Time and the Related factors for the Children in Community Children Centers (아동의 지역아동센터 이용시간의 종단적 변화유형과 영향요인에 관한 연구)

  • Kim, Dong Ha
    • Korean Journal of Social Welfare Studies
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    • v.49 no.2
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    • pp.159-180
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    • 2018
  • The purpose of this study is to identify the trajectories in the use time of children from community children centers and to examine the predictive factors and developmental factors related to each trajectory. The data were derived from the second stage of the Community Children Center Panel Survey using from the first wave (2014) to the third wave (2016). A total of 606 samples were selected from the forth to sixth grades of elementary school. Latent class growth model was employed to identify the trajectories, and the multinominal logistic regression and the logistic regression analysis were used to examine predictive factors and developmental factors. Main results indicated that three types of trajectory were identified: high using group, low using group, and high initial using-rapid declining group. Sex, parental supervision, and use duration were found to be significant predictors. Regarding developmental factors, children who constantly use the community children centers were more likely to increase academic performance and school adaptation. However, no significant results were found for aggression and delinquent behaviors. Based on these findings, this study have suggested the future direction of the community children center.

Identifying Latent Classes in Adolescent's Self-Determination Motivation and Testing Determinants of Classes (자기결정성 이론에 따른 학습동기 변화의 잠재프로파일 분류 및 영향요인 검증)

  • Choi, Hyunju;Cho, Minhee
    • Korean Journal of School Psychology
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    • v.11 no.1
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    • pp.253-274
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    • 2014
  • The present study classified groups based on latent profile of self-determination motivation(amotivation, external motivation, intrinsic motivation), and examined the determinants for each group. The data was collected through panel data of Korea Education Longitudinal Study(KELS), total 5,459 participants who answered questionnaires of self-determination motivation of two times both second grade of middle school and second grade of high school. To identify the change motivational type, standardized residual was conducted using SPSS 17.0., and the latent classes for the change of motivational type was investigated using M-Plus in the frame work of Latent Profile Analysis(LPA). The results indicated that five groups(increase of self-determination, self-determination maintenance, self-determination developmental delay, elf-determination confusion, decrease of self-determination group) were classified based on latent profile. In addition, parental control, academic self-concept, teacher-student relationship, test anxiety, avoidance orientation, gender, father's education, and income were significantly related to each group. Lastly, the implications for directions of the adolescent counseling, limitations and future research are discussed.

The relationship of ready-to-eat cereal consumption with nutrition and health status in the Korean population based on the Korea National Health and Nutrition Examination Survey 2012 (한국인의 시리얼 섭취실태와 영양 및 건강상태와의 관련성 연구 - 2012년도 국민건강영양조사 자료를 이용하여 -)

  • Chung, Chin-Eun
    • Journal of Nutrition and Health
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    • v.48 no.3
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    • pp.258-268
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    • 2015
  • Purpose: The aim of this study was to explore the relationship of ready-to-eat cereal (RTEC) consumption with nutrition and health status. Examination of health status for this project included obesity, abdominal obesity, hypertension, hypertriglyceridemia, hypercholesterolemia, low-HDL-cholesterolemia, diabetes, anemia, and metabolic syndrome. Methods: Two groups, RTEC consumers and those who did not consume RTEC, were identified using 24-hour dietary recall data from the 2012 Korea National Health and Nutrition Examination Survey (KNHANES). Nutritional intakes and risk factors of the two groups were compared using covariates-adjusted statistical procedures. Statistical analyses were performed using SAS survey procedures, and strata, cluster, and weight were considered. Subjects of analysis of nutritional intake were between the ages of 1 and 75, and those considered in the risk factor analysis were between the ages of 19 and 75. Results: Results showed that 3.8% of the Korean population was RTEC consumers. Compared to the subjects who did not intake RTEC, RTEC consumers exhibited significantly higher intakes of calcium, thiamin, riboflavin, and vitamin C. It was also discovered that the percentage of people whose intakes were less than EAR decreased with RTEC consumption. RTEC consumption showed significant association with decreased systolic blood pressure, diastolic blood pressure, serum triglyceride, and serum total cholesterol. Consequently, prevalence of hypertension among RTEC consumers was significantly lower than that among non-consumers, and the odds ratio for hypertension was 0.19 after adjusting the models for covariates. Conclusion: Results of this study clearly suggest an association of RTEC consumption with improved nutritional status and cardiometabolic risk profile in Korean adults. Conduct of additional studies will be necessary in order to determine the nature of these relationships.

Analysis of Factors Influencing Entrepreneurial Performance at the University Level for Becoming Entrepreneurial Universities (기업가형 대학(Entrepreneurial University)을 위한 대학의 창업 성과 영향요인 분석)

  • Lim, Hanryeo;Hon, Sungpyo
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.15 no.2
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    • pp.19-32
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    • 2020
  • The purpose of this study was to investigate the influence factors of the university level centering on the entrepreneurial performance of the university students and full-time faculties in the situation of increasing interest in entrepreneurial university. In order to achieve the purpose of the study, a panel data was established from 2015 to 2018 on the basis of the university notification data. The panel data included universities with data on the number of university students and full-time faculty founders for at least two years. Through this, four year data from 154 universities were used for analysis. As an analysis method, frequency analysis and descriptive statistics were conducted to understand the characteristics of the university. Since then, panel negative binomial regression analysis has been conducted in consideration of the longitudinal features and distribution of the data. Also, based on the Hausman test results, the results were interpreted based on random effect model. The results of this study are as follows. First, as a result of the analysis of the entrepreneurial performance and the change trend of the domestic university from 2015 to 2018, the entrepreneurial performance of the university has been steadily increasing in the last four years, and the increase in the number of university student entrepreneurs was relatively higher than the full-time faculties. Second, economic and educational approaches need to be combined to promote university students' start-ups. The university factors that promote the start-up of university students were found to be scholarships, start-up grants, startup lectures, and startup clubs. Third, the openness and regional characteristics of the univeristy can promote the establishment of university students. Fourth, the establishment of a research environment and support for start-ups for full-time faculty members can enhance their start-up performance. The university factors that promote the start-up of full-time faculty were research funds and staffes who support start-up. The conclusions drawn from these findings are as follows. First, overall efforts are needed to develop into an entrepreneurial university. Second, in order to change into an entrepreneurial university, direct support for entrepreneurship is needed. Third, as an entrepreneurial university, it is necessary to find a way to bridge the gap by university according to region and size. Fourth, it is necessary to reinforce the support for linking the research results of universities to start-ups. Fifth, it is necessary to improve the atmosphere for full-time faculty members to be entrepreneur.

The Longitudinal Relationship between Depression and Aggression in Adolesecnts Adapting the Autoregressive Cross-lagged Model (아동의 우울과 공격성의 자기회귀교차지연 효과검증 - 성별간 다집단 분석을 중심으로 -)

  • Lim, Jin-Seop
    • Korean Journal of Social Welfare
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    • v.62 no.2
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    • pp.161-185
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    • 2010
  • The purpose of this study is to verify the causal relationship between depression and aggressiveness among adolescents. The 4-year longitudinal data collected from 2,670 4th grade elementary school students by the Korean Youth Panel study was used in this study. From the analysis result using the Autoregressive Cross-Lagged Model, the depression and aggressiveness in adolescents were continued from elementary school 4th grade to middle school 7th grade in significant stability. In addition, the previous aggressiveness turned out to have significant positive effect on the later period depression. Similarly, the previous depression had significant effect on the later aggressiveness, but the direction was negative. This means that the adolescents's depression increases as their aggressiveness increases, but as the depression increases, the later aggressiveness of the adolescents decreases. There were no differences between girls and boys within the relationship of these two variables. Finally, the implication derived from the results, the limitation of this study, and suggestion for following studies were presented.

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Evaluating the Applicability of Clinical Practicum with Simulation Used Additionally in an Undergraduate Nursing Curriculum (시뮬레이션을 활용한 실습교육과정의 적용가능성 평가)

  • Oh, Hankyo;Song, Rhayun;Ahn, Sukhee
    • Journal of the Korea Convergence Society
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    • v.10 no.10
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    • pp.357-369
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    • 2019
  • This study was to examine the effects of simulation used additionally in clinical practicum and evaluate its applicability in an undergraduate nursing curriculum. A longitudinal survey was used to measure the changes on the scores of clinical competency, clinical confidence, critical thinking and problem solving ability of students(N=77) who had experienced simulation in the clinical practicum curricula throughout their junior and senior years. Variables were measured 4 times, at the beginning and the end of each year, and data were analyzed using repeated measures of ANOVAs. Clinical competency score in senior year improved significantly(t=-13.75, p<.001) whereas no significant changes in junior year. Clinical confidence and critical thinking disposition over 2 years showed significant increases(F=177.86, p<.001; F=247.79, p<.001, respectively). Problem solving ability increased throughout the junior and senior years, however, it did not make a significant difference at any point of measures.

The formation and change of adolescents' delinquent behavior (청소년 일탈행동의 형성과 변화에 대한 고찰)

  • Young-Shin Park;Uichol Kim
    • Korean Journal of Culture and Social Issue
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    • v.9 no.1
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    • pp.81-114
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    • 2003
  • This study examines the basis and change of delinquent behavior among Korean adolescents. Theoretical framework was developed and qualitative analysis of delinquency behavior was examined. In order to understand the basis and change of juvenile delinquency, the influence of family environment, school environment and individual factors were investigated through cross-sectional and longitudinal studies. The results of the findings can be summarized into the following six main points: 1) two subcultures of adolescent functioning could be ascertained, 2) the decrease in social support and increase in moral disengagement were directly related to a rise in juvenile delinquency, 3) family disintegration contributed to juvenile delinquency, 4) peer influence help to raise juvenile delinquency, 5) schools were unable to give hope to those students who were not doing well in school and were ineffective in dealing with juvenile delinquents, and 6) the phenomenon of juvenile delinquency points to the importance of opening up the closed school system and closed society, allowing individual diversity and skills to be recognized.

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Influence of Private Tutoring on Middle School Student's Achievement According to the Experience of Gifted Education (사교육과 영재교육 참여경험이 중학생의 수학성취도에 미치는 영향)

  • Park, Sun Heung;Han, Ki-Soon
    • Journal of Gifted/Talented Education
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    • v.23 no.1
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    • pp.49-65
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    • 2013
  • The purpose of this study is to investigate the longitudinal impact of the engagement of private tutoring on student achievement and the influence of the engagement of gifted education on the effect of private tutoring by applying hierarchical linear growth modeling technique on the KELS (Korean Education Longitudinal Study) data. For the analysis, we used KELS data including the score of Mathematics achievement from 2005 to 2007 in order to get useful variables like whether or not to engage private tutoring, weekly time and monthly cost of private tutoring, the experience of gifted education, gender, prior achievement of 6th grade, parents' monthly income, internal motivation and self-efficacy. The sample consisted of 4,435 7th graders from Korean middle schools who were included in the KELS and have the data available to a significant dataset having no missing values include. The result suggest that the private tutoring experience predicted students' high Mathematics achievement and the interaction between grade and private tutoring time and cost has negative impact on the mathematics achievement. In contrast, it was found that the experience of gifted education has negative impact on the growth of mathematics achievement, but positive impact on the effect of private tutoring cost on the mathematics achievement. In other words, the experience of gifted education shows affirmative impact on the effect of private tutoring cost on the mathematics achievement indirectly. On the basis of this results, we discussed deeply the effect of private tutoring on the Mathematics achievement and the influence and its meaning of the experience of gifted education on the effect of private tutoring.