• Journal of Digital Convergence
• /
• v.12 no.6
• /
• pp.655-667
• /
• 2014

This paper has identified five major categories of the T2D patients' concerns based on an online forum where the patients voluntarily verbalized their naturally occurring emotional reactions and concerns related to T2D. We have emphasized the fact that the lexical and phrasal analysis brought to the forefront the prevailing negative reactions and desires for clear information, professional advice, and emotional support. This study used lexical and phrasal analysis based on text-mining tools to estimate the potential of using a large sample of patient conversation of a specific disease posted on the internet for clinical features and patients' emotions. As a result, the study showed that quantitative analysis based on text-mining is a viable method of generalizing the psychological concerns and features of T2D patients.

• Journal of the Institute of Electronics Engineers of Korea SP
• /
• v.39 no.4
• /
• pp.455-461
• /
• 2002

This paper presents a new parametric log line equation of polar form for Hough transform in log-polar plane, in which it can remove the well-known unboundedness problem of Hough parameters. Bolduc's method is used to generate a log-polar image dividing the fovea and periphery from a Cartesian image. Edges of the fovea and periphery are detected by using the Sobel mask and the proposed space-variant gradient mask, and are combined in the log-polar plane. The sampled points that might constitute a log line are quite sparse in a deep peripheral region due to severe under-sampling, which is an inherent property of LPM. To cope with such under-sampling, we determine the values of cumulative cells in Hough space by using the space-variant weighting. In our experiments, the proposed method demonstrates its validity of detecting not only the lines passing through both the fovea and periphery but also the lines in a deep periphery.

• Journal of the Institute of Electronics Engineers of Korea SP
• /
• v.46 no.2
• /
• pp.30-39
• /
• 2009

Extraction of glomeruli region plays a very important role for diagnosing nephritis automatically. However, it is not easy to extract glomeruli region correctly because the difference between glomeruli region and other region is not obvious, simultaneously unevennesses that is brought in the sampling process and in the imaging process. In this study, a new method for extracting renal glomeruli region using genetic algorithm is proposed. The first, low and high resolution images are obtained by using Laplacian-Gaussian filter with ${\sigma}=2.1$ and ${\sigma}=1.8$, then, binary images by setting the threshold value to zero are obtained. And then border edge is detected from low resolution images, the border of glomeruli is expressed by a closed B-splines' curve line. The parameters that decide the closed curve line with this low resolution image prevent the noises and the border lines from breaking off in the middle by searching using genetic algorithm. Next, in order to obtain more precise border edges of glomeruli, the number of node points is increased and corrected in order from eight to sixteen and thirty two from high resolution images. Finally, the validity of this proposed method is shown to be effective by applying to the real images.

• Journal of Korea Water Resources Association
• /
• v.45 no.9
• /
• pp.943-957
• /
• 2012

In this study, a technique based on Fractal Theory with Erosion Model was developed to interpolate the river morphology data at the border area between river bed and river side where both surface and under water surveyings can not be committed easily. Three dimensional river morphology data along the Ara River was generated by the developed technique. The Ara River is an artificially constructed waterway for vessels between the Han River and West Sea of Korea. The result was compared with the survey data by RMSE of 0.384, while the IDW interpolation result has RMSE of 0.802. Consequently, the developed river morphology data interpolation technique using Erosion Model based Fractal Theory is conceived to be superior to the IDW which has been generally used in generating the river morphology data.

• Journal of the Korean School Mathematics Society
• /
• v.23 no.3
• /
• pp.259-276
• /
• 2020

The purpose of this study was to identify how didactic transposition (teaching and learning methods) has occurred and developed in the teaching of graphs in elementary school mathematics textbooks for third and fourth graders according to the previous and current curricula. In this study, we analyzed the lesson units on bar graphs and line graphs in mathematics textbooks for each curriculum, from the fifth curriculum to the 2015 revised curriculum. We also investigated the implication of statistics education deriving from didactic transposition (teaching and learning methods). We found that the timing of teaching bar and line graphs was rarely changed as the curriculum has changed. In addition, the use of technology was not actively implemented in school statistics, although the curriculum emphasized the use of technology in statistical education. Lastly, the textbooks did not address the variability and distribution of data and the sample or sampling process, which are significant statistical concepts. Based on the findings of this study, we suggest how to teach statistical graphs and what to consider for the next mathematics textbook.

• Proceedings of the Korea Contents Association Conference
• /
• 2009.05a
• /
• pp.449-453
• /
• 2009

The primary purpose of this study was to probe the relationship between negotiating efforts on leisure restriction and participation in leisure sports. This study has sampled for 26 days from 2009 February 9th to March 6th 250 adult at the age of 19 living in capital area using the Purposive Sampling Method. The study has then divided these samples into 3groups which are : public people, members of an association club, members of a club. To exclude non-participant of leisure sports, the researcher has visited the leisure sports facilities to sampling survey. The collected data were put into the SPSSWIN 15.0 program to be Factor Analysis, Reliability Analysis, Multiple Regression Analysis, Path Analysis. The results are: 1) Negotiating efforts on leisure sports affect the frequency of leisure sports participation: thus, the more effort on leisure activity and eagerness to change the more frequent the participation rate becomes. 2) Negotiating efforts on leisure sports affect the length of leisure sports participation. The means that the recharging through leisure activity and regulatory the intensity can extend the length of participation. 3) Negotiating efforts on leisure sports affect the intensity of participation. The more effort on leisure activity result in higher intensity of participation.

• Journal of the Korea Convergence Society
• /
• v.11 no.2
• /
• pp.29-35
• /
• 2020

The purpose of this study was to examine the effect that the affective factors of oral health in industrial workers would have on oral health behaviors and quality of oral health life. A survey was performed of 100 subjects selected from 5 industrial companies located in Chungcheongbuk-do through simple random sampling method from January 19 to 23, 2018, using the questionnaires. The data collected from the survey were analyzed with frequency analysis, independent t-test, and multiple regression analysis by using the SPSS 18.0 statistical program. The results showed that the affective factors of oral health had an influence on oral health behaviors and that the influence on quality of oral health life was greater when the oral health practice intention was stronger. Based on aforesaid results, effective oral health programs, conducive to bringing changes to the affective factors of oral health, would need to be developed in order to enhance oral health behaviors and quality of oral health life in industrial workers.

• Journal of the Korea Convergence Society
• /
• v.11 no.2
• /
• pp.323-330
• /
• 2020

This study is to identify the types and meaning of 'Good Leisure' that married immigrant women perceived. 32 Q samples were extracted from the interviews and questions and 40 immigrant women were selected as P samples. The conclusion are as follows; First, the types of 'Good Leisure' were classified as 4 types. Second, the type 1, 'Psychological Stability Pursue Type' recognizes 'Good Leisure' when they feel comfort and relaxed through activities. The type 2, 'Emotional Stability and Self-development Type' recognized 'Good Leisure' when they are pleased, or engaged in self-development activities. The type 3, 'Practical Use Pursue and Information Acquisition Type', recognizes 'Good Leisure' when they learn things necessary for living with less cost, and type 4, 'Acculturation and Exchange Type' recognizes 'Good Leisure' when they learn Korean culture or interact with Korean people. Third, regardless of each type, married immigrant women perceived in having a good time with people as 'Good Leisure'.

• Journal of Digital Convergence
• /
• v.12 no.10
• /
• pp.615-624
• /
• 2014

The purpose of this study is to ascertain the effect of the reputation of ski resorts on multidimensional trust, customer satisfaction and spread by word-of-mouth. To attain this goal, 400 adult male and female subjects using 3 Ski Resorts located in Gangwon-do in Korea in 2013 were selected. For this, convenient sampling was used. The data was processed with the 382 final available samples excluding the 18 inappropriate questionnaires through frequency-, exploratory factor-, reliability-, correlation-, and simple/multiple regression-analyses by using the PASW 18.0. The result is as follows. First, the reputation of the ski resorts was found to have a positive effect regarding the trust of the resorts and their employees. Second, trust in ski resorts and their employees was found to have a positive effect on customer satisfaction. Third, trust in ski resorts and their employees was found to have a positive effect on the spread of word-of-mouth about the resorts. Fourth, customer satisfaction was found to have a positive effect on the diffusion by word-of-mouth.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.1
• /
• pp.128-134
• /
• 2013

The purpose of this study wat to investigate relationships of learning motivation and self-efficacy according to participation in a motivational program for university freshman studying physical education. A total of 66 university freshman participated in the current study and divided into experimental group and control group. Questionnaires were distributed before and after motivational program. Statistical methods used in this study were descriptive analysis, paired t-test, ANOVA, and ANCOVA. The results showed the following. First, There was a significant difference in the external motivation variable of learning motivation of the experimental group. Second, the experimental group showed a statistical difference between pretest and posttest in the confidence variable of self-efficacy. positive attitude influenced on leisure satisfaction.