• Journal of the Korean Data and Information Science Society
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• v.27 no.4
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• pp.1027-1033
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• 2016

The purpose of this study is to examine the satisfaction level for military food services as well as to find out influential factors which affect satisfaction. The questionnaire survey was conducted by 111 soldiers. In the satisfaction analysis for military food services, 69.3% of soldiers presented positive response. There are, however, some differences in satisfaction between corporal and private groups as well as corporal and sergeant groups. Overall, the corporal group shows low satisfaction for military food services. To identify influential factors for satisfaction of military food services, we considered various factors: tasty, nutrition, quantity, hygienic conditions, environment, ambient factors, waiting time, presence of desert, menu, and kindness of a cook. Satisfaction analysis shows that main significant factors are tasty and quantity of the food. Thus, tasty and quantity of the food are need to be consistently monitored and improved to increase the satisfaction of military food services.

• Journal of Korean Academy of Nursing Administration
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• v.13 no.2
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• pp.254-262
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• 2007

연구목적: 본 연구는 암 간호정보체계에 사용될 한국 6대 암 환자의 핵심간호진단을 결정하기 위해 수행되었다. 핵심간호진단 은 6대 암, 각 환자 군의 간호를 위해 가장 자주 혹은 많이 사용되는 일정의 간호진단 세트로 정의된다. 본 연구에서 6대 암 환자의 핵심간호진단을 결정하고자 하는 가장 큰 목적은 간호진단 과정에서의 편리성을 높임으로써 앞으로 개발될 암 간호정보체계의 유용성과 사용가능성을 높이기 위함이다. 연구방법: 핵심간호진단은 조사연구를 통해 결정하였으며, 결정된 진단들은 문헌고찰과 환자기록 분석을 통해 그 타당도를 확인하였다. 환자기록 분석은 특히 조사연구 결과의 타당도를 확인하기 위해 사용되었다. 조사연구에 사용된 도구 및 환자기록에 나타난 간호진단 혹은 간호문제의 교차분석을 위해서는 NANDA Taxonomy II에 포함된 간호진단이 사용되었다. 219명의 경력간호사가 조사연구에 참여하였으며, 72개의 환자기록이 분석되었다. 핵심간호진단은 암 간호 정보체계의 언어개발을 위해 구성된 전문가 집단에 의해 조사연구 참여자의 20% 이상이 선택한 NANDA 간호진단으로 정하였다. 연구결과: 16개 ${\sim}$ 20개의 NANDA 간호진단이 한국 6대 암, 각 환자군의 핵심간호진단으로 선정되었다. 핵심간호진단 중 '급성통증', '만성통증', '불안', '감염가능성', '피로' 등이 6대 암 환자 군에 모두 포함되었다. 결론: 핵심간호진단의 타당도는 환자기록 분석과 문헌고찰을 통해 확인되었다. 이들 핵심진단은 암 간호정보체계에 사용되어 간호진단 적용을 촉진함으로써 암 환자 간호의 질 향상에 기여할 수 있을 것이다.

• Journal of the Korean Institute of Intelligent Systems
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• v.24 no.6
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• pp.665-670
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• 2014

A SVM is a kind of binary classifier in order to find optimal hyperplane which separates training data into two groups. Due to its remarkable performance, the SVM is applied in various fields such as inductive inference, binary classification or making predictions. Also it is a representative black box model; there are plenty of actively discussed researches about analyzing trained SVM classifier. This paper conducts a study on a method that is automatically detecting the line-shaped echoes, sun strobe echo and radial interference echo, using the SVM algorithm because the line-shaped echoes appear relatively often and disturb weather forecasting process. Using a spatial clustering method and corrected reflectivity data in the weather radar, the training data is made up with mean reflectivity, size, appearance, centroid altitude and so forth. With actual occurrence cases of the line-shaped echoes, the trained SVM classifier is verified, and analyzed its characteristics using the decision tree method.

• Journal of Digital Convergence
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• v.11 no.11
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• pp.443-448
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• 2013

Ant Colony System(ACS) is a meta heuristic approach based on biology in order to solve combinatorial optimization problem. It is based on the tracing action of real ants which accumulate pheromone on the passed path and uses as communication medium. In order to search the optimal path, ACS requires to explore various edges. In existing ACS, the local updating rule assigns the same pheromone to visited edge. In this paper, our local updating rule gives the pheromone according to the total frequency of visits of the currently selected node in the previous iteration. I used the ACS algoritm using subpath for search. Our approach can have less local optima than existing ACS and find better solution by taking advantage of more informations during searching.

• Journal of Digital Convergence
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• v.11 no.11
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• pp.509-519
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• 2013

The purpose of this study was to identify the factors related to awareness, treatment, and control of hypertension in Korea using data from the 4th KNHANES. The analytical technique employed multivariate logistic regression analysis and the major findings of this research are as follows. First, awareness of hypertension was positively associated with age, occupation, self-rated health, Body Mass Index, and health examination since 2 years ago, in both males and females. Second, treatment of hypertension was positively associated with age, self-rated health, Body Mass Index, and health examination since 2 years ago, in both males and females. Third, control of hypertension was positively associated with age, self-rated health, Body Mass Index, and health examination since 2 years ago, in both males and females. Finally, the results of analysis suggest that the government should especially focus on the vulnerable group and continue to strengthen effective efforts for improving awareness, treatment, and control of hypertension.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.527-536
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• 2013

This study examined the effects of university student's self perfectionism, depression and hopelessness on suicidal ideation. The survey purposively collected 240 cases from randomly selected 3 universities in Seoul, Korea. The data collected from May to June of 2011 were analyzed by t-test, anova and hierarchical multiple regression in SPSS. As results of the analysis, first, those in low economic group and those with fewer number of friends showed higher depression, hopelessness and suicidal ideation. Second, those with higher self perfectionism, those with higher depression and hopelessness were appeared to be with higher suicidal ideation. The study suggested not only mentoring program but also programs to decrease psychological pressure, overcome overwhelming expectation and psychological anxiety of students.

• Journal of Digital Convergence
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• v.18 no.4
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• pp.101-112
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• 2020

This study aims to discuss the current status of the ride-sharing platform industry, which embodies the core values of the 4th Industrial Revolution, sharing and connectivity, as well as economic, industrial, and legal issues. To understand the position of competing groups, the research conducted extensive literature reviews on domestic and international cases of technical and legal issues of the sharing economy. The result indicates that the ride sharing industry showed the economy of synthesis in which production, supply, distribution, and consumption are on one platform. It made possible to share values to users and synthesize them with new services through easy-access mobile application technology. To resolve the conflicts between the taxi industry and the ride sharing industry, this study suggests the following: Ride-sharing companies should make contributions to provide legitimate services. The taxi industry needs to understand the value of the new industry and consumers who chose the shared platform service. The significance of the current study is that it proposed a comprehensive analysis and policy direction toward the issue of balance between public and private interests and legal stability.

• Journal of the Korea Society of Computer and Information
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• v.16 no.3
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• pp.237-249
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• 2011

Due to the economic development and the social structure and holiday structure change, we have more time for leisure and entertainment activities. For coping with this trend the waterpark has already become the one of major entertainment facilities for many countries. The purpose of this study is to construct Waterpark service quality evaluation factors and find out the importance and satisfaction degree of these factors. The result of this study are as follows; First, the safety field had considered as most important. Second, the importance of service quality evaluation fields and factors are different according to social characteristics. Third, the safety field is evaluated as the first satisfactory field and the cost/price field is evaluated as the lowest.

• Journal of Gifted/Talented Education
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• v.25 no.1
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• pp.95-117
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• 2015

The purpose of this study is to investigate what image and perception of the engineering scientifically gifted students have. For this, we conducted a survey of 182 students who are freshman or sophomore in science high schools. First, we analyzed the image of the engineering and science based on the survey. Second, we investigated the perception of the engineering and the need for engineering education. Third, we analyzed the attitude toward the engineering. The result of this study is as follow. We found that they perceived engineering positively as much as that they gave an affirmative answers to the most of questions about engineering and field of engineering. Even though engineering careers and fields of career are very important particularly for gifted students, they have not only lack of recognition and negative image of engineering but also a misconception. It seems to be due to the lack of opportunities for engineering education. In addition, gifted students have meaningful differences according to gender, grade level, future career group. In conclusion, compared to the importance of engineering for them, the image and perception and attitude of the engineering gifted students have were examined to be very lacking.

• Journal of the Korean Society for Library and Information Science
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• v.50 no.1
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• pp.71-99
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• 2016

This study investigated users' information seeking behaviors associated with their perceptions of uncertainty. For this study, the data was collected from an user group, who conducted information searches in the field of history, using the KERIS Edunet system and it was analyzed through the comparative analysis of the grounded theory. The results presented users' uncertainty in the following stages: the identification of information needs, the selection of an information system, the selection of search terms, the actual use of the system, and the evaluation of search results. Major implications pertain to the enhancement of the Edunet system and related services. The former includes the improvement of the retrieval mechanisms related to the search and display interfaces. The latter emphasizes the consideration of the origin of uncertainty in the process of the services. In other words, the study suggested to consider the inadequacy of the system functions, the insufficiency of search experiences and the lack of such abilities of particular users.