• Journal of the Korea Society of Computer and Information
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• v.28 no.4
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• pp.21-29
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• 2023

In this paper, we propose an AI-based system for automatically classifying industry and occupation codes in the population census. The accurate classification of industry and occupation codes is crucial for informing policy decisions, allocating resources, and conducting research. However, this task has traditionally been performed by human coders, which is time-consuming, resource-intensive, and prone to errors. Our system represents a significant improvement over the existing rule-based system used by the statistics agency, which relies on user-entered data for code classification. In this paper, we trained and evaluated several models, and developed an ensemble model that achieved an 86.76% match accuracy in industry and 81.84% in occupation, outperforming the best individual model. Additionally, we propose process improvement work based on the classification probability results of the model. Our proposed method utilizes an ensemble model that combines transfer learning techniques with pre-trained models. In this paper, we demonstrate the potential for AI-based systems to improve the accuracy and efficiency of population census data classification. By automating this process with AI, we can achieve more accurate and consistent results while reducing the workload on agency staff.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.6D
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• pp.1003-1010
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• 2006

This study developed a traffic accident information management system based on WebGIS that can process a lot of data for giving effectively diagnosis of traffic accidents in serious damage circumstances by traffic accident. Also, this study presents a way to compose and to convey traffic accident information. In addition, non-spatial attributes as well as spatial attributes about traffic accidents information be integrated and managed by the system. To provide Web service, we developed modules that can supply visually spatial information and traffic accidents data through ASP, Javascript, ArcIMS based on Web and constructed a server. And constructed system include a function that offer the now situation of traffic accident in real time, which supply the statistical data of traffic accident through Web as soon as user entry data in comparison with previous way that preparatory period until traffic accidents data is supplied to peoples had been long. Traffic accidents are analyzed with only nonspatial attribute by simply collecting in the past. However, system constructed by this study offer new function that can grasp visually accident spot circumstance and use detailed content and accurate location data as well as statistical data of traffic accidents. Also, it offer interface that can connect directly with accident charge policeman.

• Journal of Korea Entertainment Industry Association
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• v.13 no.5
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• pp.155-165
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• 2019

The sense of happiness of early childhood teachers has a great influence not only on teaching but also on infants. The purpose of this research is to investigate how prospective pre-service teachers' sense of happiness influence their teacher professionalism and teacher efficacy. The subjects were 264 pre-service teachers' in Gwangju metropolitan city and Jeollanamdo province. Statistical analysis of this study was done by Pearson's correlation coefficient and multiple regression analysis using SPSS WIN 22.0 program. The results of this study were as follows. First, there were significant positive relationships among the sense of happiness on teacher professionalism and teacher efficacy. There was a significant positive correlation between external happiness, inner happiness, and self-regulated happiness, which are indicating that there is a meaningful correlation between pre-service teachers' sense of happiness, teacher professionalism and teacher efficacy. Second, the sense of happiness was an important factor for predicting the teacher professionalism and teacher efficacy of pre-service early childhood teachers. The results of this study show that the pre - service teacher 's sense of happiness is a predictor variable that positively affects teacher professionalism and teacher efficacy. In conclusion, It is meaningful in seeking ways to improve teacher education by enhancing the euphoria of prospective pre-service teachers during school life and strengthening positive aspects of the educational contents and processes of the institutions that train infant teachers.

• Journal of Korea Entertainment Industry Association
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• v.13 no.7
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• pp.385-395
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• 2019

The purpose of this study is to cultivate the attitudes of preservice early childhood teacher's commitment by analyzing the effects of education practicum, teacher efficacy, and emotional intelligence on teacher's education commitment and analyzing the relationship between them. To this purpose, a total of 150 questionnaires were distributed to 75 preservice early childhood teachers of the metropolitan area from November 1, 2018 to March 2019. The results of the study were as follows: First, education commitment of preservice early childhood teachers was positively correlated with teachers' efficacy, emotional intelligence, and education practicum experiences. Second, education commitment increased when the emotional intelligence increased before the education practicum experience, and education commitment increased when the teacher's efficacy increased after education practicum experience. In light of these, It suggests that programs or content education that can strengthen emotional intelligence are effective before education practicum. and that programs or content education that enhance teacher efficacy capacity are more effective after education practicum.

• 한국노년학
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• v.30 no.4
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• pp.1059-1075
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• 2010

This study aims to explore how the individual characteristics of the senior job placement project coordinators and the organizational structure in which they work affect their job performance. A survey of 251 coordinators who were working in the senior job placement project agencies were retrieved and used for empirical analysis using the SPSS Win.12 program. The result shows that a sense of self efficacy, the individual traits(understanding of the senior job placement project, attitude towards the elderly) and the organizational structure(the level of formalization of agency) were statistically significant predictors of the level of job performance. The results of this study show that the coordinators who were more confident about themselves, who had more understanding about the senior job placement project, who had more positive attitude towards the social activities of the elderly, and who were working in agencies with higher level of formalization had a higher level of job performance than their counterparts. Therefore, more policy and program considerations should be taken into account in empowering the coordinators, and in providing them with standardized organizational process. This in turn will ultimately enable them to better serve the elderly who participate in the senior job placement projects.

• 한국노년학
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• v.29 no.1
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• pp.117-134
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• 2009

The purpose of this study was designed to develop an questionnaire for healthy aging. The subjects of this study were total 335 people who participated in regular exercise and went to welfare centers in Seoul. The validity and reliability were tested for verifying the developed questionnaire for healthy aging. The data were collected between June 12, 2006 and October 27, 2006. The mean, standard deviation, kurtosis, skewness, reliability, exploratory factor analysis and confirmatory factor were analyzed for statistical purpose using by SPSS-Win 12.0 program. The results were as follows; First, to obtain content validity, the results of previous research and the value system responses were submitted to a judgement group. Second, the results of the factor analysis of the 20 items making up the questionnaire were classified into the following 3 factors; physiological health(6 items), cognitive-mental health(6 items), social-support health(8 items). Third, the reliability of the questionnaire for healthy aging was 0.891(Cronbach's alpha). In the factor analysis Cronbach's alpha correlations for the 4 factors ranged from 0.642 to 0.885. Fourth, the results of confirmatory factor analysis, all the index values(NFI, RFI, CFI, Delta 2 IFI) were close to 1. Thus, this questionnaire demonstrated good reliability and validity and therefore it was an appropriate measurement of healthy aging.

• The Journal of the Korea Contents Association
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• v.22 no.8
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• pp.247-257
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• 2022

This study was conducted with female college students in their 20s living in Henan Province, China, who had experience with TikTok. The relationship between TikToker's fashion and consumers' empathy, favorability, and purchase intent is verified. The questionnaires were administered for 10 days from February 1 to February 10, 2022. A total of 316 questionnaires were used for the final analysis, and statistical processing of the collected data was performed using SPSS 26.0 for frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis, and regression analysis. The results of the analysis are as follows. First, Chinese female college consumers' empathy for women's TikToker fashion positively influenced favorability and purchase intention. Second, Chinese female college consumers' favorability of women's TikToker fashion positively influenced purchase intentions. Based on the results of this study, the following insights can be proposed. When promoting TikTok marketing, attention should be paid to the choice of TikToker. If choose the right TikToker, you can not only increase the favorability of TikToker fashion products but also increase the purchase intention of TikToker fashion. Choosing TikToker with charm, rich emotion, and beautiful appearance help product sales.

• Korean journal of applied entomology
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• v.62 no.3
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• pp.139-147
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• 2023

Leaf-spray in vitro bioassays appraise new aphicidal formulations for managing deleterious plant-feeding aphids. The formulation may utilize alternative and integrated strategies. However, leaf spraying even under controlled conditions may affect aphid reproduction and mortality. This study examines leaf spray applications for optimum and reproducible aphicidal results using tobacco leaves overlaid on cotton fabric or water agar surfaces. Infestation of the undersides of tobacco leaves with nymphs of green peach aphids was used in the assays. Spray distance and volume were optimized using water-sensitive paper to ascertain the best surface coverage. Overlays of the leaves on water agar caused less mortality and greater reproduction than the use of cotton fabric. The relative humidity of the insect-rearing chambers changed with the watering regime for the insect - rearing chambers with cotton fabric; 60% relative humidity was optimal. Relative humidity was not affected by the concentration of agar in the water agar chambers. Applications of the chemical aphicidal standard, Sulfoxaflor, under the optimized conditions exhibited similar times for lethality although the rate was faster with leaves on the cotton fabric than on water agar. These studies establish reproducible and sensitive techniques for assessing the lethality and effects on reproduction of potential aphicidal products.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.16 no.5
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• pp.315-324
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• 2023

In this paper, we propose a real-time pose estimation method for a monocular camera using a particle filter integrated with UKF (unscented Kalman filter). While conventional camera tracking techniques combine camera images with data from additional devices such as gyroscopes and accelerometers, the proposed method aims to use only two-dimensional visual information from the camera without additional sensors. This leads to a significant simplification in the hardware configuration. The proposed approach is based on a particle filter integrated with UKF. The pose of the camera is estimated using UKF, which is defined individually for each particle. Statistics regarding the camera state are derived from all particles of the particle filter, from which the real-time camera pose information is computed. The proposed method demonstrates robust tracking, even in the case of rapid camera shakes and severe scene occlusions. The experiments show that our method remains robust even when most of the feature points in the image are obscured. In addition, we verify that when the number of particles is 35, the processing time per frame is approximately 25ms, which confirms that there are no issues with real-time processing.

• Journal of Venture Innovation
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• v.5 no.3
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• pp.41-55
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• 2022

The purpose of this study is to investigate the effect of Job Embeddedness of members of small and medium-sized construction companies on turnover intention through organizational commitment, targeting employees of small and medium-sized construction companies located in Seoul, Gyeonggi, and Incheon. The significance sampling method was applied as the sampling method, and the number of cases used in the final analysis was 316, and the input data was processed using the SPSS 20.0 program for statistical analysis. As a result of analysis, First, it was found to have a significant negative(-) effect on the turnover intention in suitability and sacrifice as sub-factors of Job Embeddedness of small and medium-sized construction company members, and the correlation between linkage and turnover intention was not significant. Second, it was found to have a significant positive(+) effect on the organizational commitment in suitability, links and sacrifice as sub-factors of job embeddedness of small and medium-sized construction company members. Third, organizational commitment was found to have a significant negative(-) effect on turnover intention. Fourth, organizational commitment was found to completely mediate the relationship between job commitment and turnover intention. Therefore, it was found that the higher the Job embeddedness of the members of small and medium-sized construction companies, the more influential the turnover intention. This suggests that it can have a negative effect on turnover intention by improving the suitability of values pursued by individual members of the organization, work passion, and attachment to the organization.