• Journal of Information Processing Systems
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• 제16권2호
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• pp.360-376
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• 2020

Many heuristic attribute reduction algorithms have been proposed to find a single reduct that functions as the entire set of original attributes without loss of classification capability; however, the proposed reducts are not always perfect for these multiclass datasets. In this study, based on a probabilistic rough set model, we propose the class-oriented attribute reduction (COAR) algorithm, which separately finds a reduct for each target class. Thus, there is a strong dependence between a reduct and its target class. Consequently, we propose a type of ensemble constructed on a group of classifiers based on class-oriented reducts with a customized weighted majority voting strategy. We evaluated the performance of our proposed algorithm based on five real multiclass datasets. Experimental results confirm the superiority of the proposed method in terms of four general evaluation metrics.

• 한국임상약학회지
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• 제25권4호
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• pp.286-295
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• 2015

Objective: This experiment is to study how elderly group and their various lifestyles interact with health functional foods, according to their selection behavior. Different lifestyles will be observed closely, as well as how different health conditions and consumer involvements will affect critical decision making in selecting health functional foods. Method: Theories and discoveries from original advanced research were compared parallel to the new study. Results: First, cluster analysis and exploratory analysis were performed amongst different elder lifestyles. Lifestyle exploratory analysis was used for healthy, unique, leisure, and economical-style elders. Cluster analysis was used for material trend oriented, health oriented, complacent oriented-style elders. Health Functional Foods' selection trait Exploratory Factor Analysis showed that product's originality (function, uniqueness, specialty, compatibility, distributor, expiration date), quality (amount, daily dose, visual representation, accessibility, portability, natural ingredients), and popularity (product container, brand image, taste and smell, advertised product, domestic or import, well-known function) were the three main causes. Secondly, the amount of benefits for the elderly group health lifestyle were affected by 'Interest in health', 'Notability of the health functional food', and 'Functionality approved mark'. Specifically, the importance of, 'Interest in health', 'Notability of health functional food', and 'Functionality approved mark' were noticeably high within health oriented elders. Lastly, after examining the data from elder lifestyle's relationship with health functional food selection trait, all three different results showed equal importance. If you closely examine material trend oriented elderly group, selection trait showed distinctively high regards in 'Fundamental Attribute', 'Typical Attribute', and 'Cognitive Attribute'. Health oriented elders showed their distinctively high regards in 'Natural Attribute', and less consideration in 'Typical Attribute' and 'Cognitive Attribute'. Complacent oriented-style elderly group showed less focus on 'Fundamental Attribute', and even less in 'Typical Attribute', and 'Cognitive Attribute'. Health oriented elderly group concluded with above data from the fact that they showed most importance and involvement in health beneficial products that are scientifically proven. Material trend oriented elderly group showed balanced traits in their concluded data, showing that they prefer function, safety, as well as the brand image and their reputation. Also, they consider the products' outer elements, such as design and product name, in order to sense inner functions. Conclusion: So, Silver Business corporations must develop products to fulfill the market demands, and strategize marketing plans to better target the correct audience.

• 한국컴퓨터정보학회논문지
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• 제23권1호
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• pp.139-145
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• 2018

This paper recommends flipped learning as a method to improve the learning abilities and the level of software utilization when it comes to using computers in children education institutes. Flipped learning enables a class fully making use of the up-to-date multimedia-related technology. Especially, flipped learning leads a participation-oriented class rather than lecture-based ones. Young child's teachers can, not only improve their capabilities to utilize multimedia, but also manage classes that follow the trend of the fourth industrial revolution. Therefore, this paper introduces the importance of media education when it comes to training preliminary teachers and suggests a flipped learning curriculum. This paper finds significance in future efficient education for raising creative and integrated thinking children.

• 대한간호학회지
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• 제7권1호
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• pp.1-9
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• 1977

Primary function of health record is that as tool of communication between the health processionals with the mutual goal, the promotion of health care standard. Studies have been carried out world over oil tile subject, among those, Weed's Problem-Oriented Health Record is considered a paramount achievement. This study was designed to assess tile possibility of implementing tile problem-oriented health record system through ail experiment in order to provide data for nurse administrators infiltrating reformation of recording system and format. Record of 29 patients admitted at Korea University Hospital, Seoul, from March through June, 1976 for 4 to 14 days were sampled. Nursing notes were recorded by research assistants; senior nursing student trailed extensively by the researcher oil Problem-Oriented Records, oil Problem Oriented Nursing Record format (experimental group) and analysis were carried out comparative, with that of traditional nursing records noted by other nursing personnel (control group) on the same patient. Attitude towards Problem Oriented Nursing Record system and format were attained through questionaries responded by the 51 research assistants. Results are as fellows: Comparative analysis revealed that: 1. Assessment of patients' health problems recorded significantly more in traditional records. 2. Focus of health Problem differed; traditional records slowed significantly higher frequency in medical and procedure as focus while problem oriented records on nursing focus problems. 3. Problem- Oriented records were better organized, Mean value scores of attitude towards Problem- Oriented Records revealed that: Positive value scores on all 4 categories: 1) Assessment of nursing needs, 2) Nursing care planning 3) Patient progress assessment and 4) Tool of teaching and learning revealed that the Problem-Oriented Nursing Record is positively accepted by tile respondents. Recommendation Further experiments on implementation of Problem- Oriented Health Record are recommended: experiment involving all health professionals, in larger scope and longitudinal.

• 한국수학교육학회지시리즈A:수학교육
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• 제49권2호
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• pp.223-246
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• 2010

Goos(2004) introduced educational researchers' demand for change on the way that mathematics is taught in schools and the series of curriculum documents produced by the National council of Teachers of Mathematics. The documents have placed emphasis on the processes of problem solving, reasoning, and communication. In Korea, the national curriculum documents have also placed increased emphasis on mathematical activities such as reasoning and communication(1997, 2007).The purpose of this study is to analyze the impact of inquiry-oriented instruction with guided reinvention on students' mathematical activities containing communication and reasoning for science high school students. In this paper, we introduce an inquiry-oriented instruction containing Polya's plausible reasoning, Freudenthal's guided reinvention, Forman's sociocultural approach of learning, and Vygotsky's zone of proximal development. We analyze the impact of mathematical findings from inquiry-oriented instruction on students' mathematical activities containing communication and reasoning.

• PNF and Movement
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• 제11권2호
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• pp.41-48
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• 2013

Purpose : The aim of this study was to compare the effect of task-oriented training using the PNF(proprioceptive neuromuscular facilitation) and task-oriented training with chronic stroke patients. Methods : Sixteen chronic stroke patients participated. Participants were randomly assigned to the control and experimental group( 8 experimental, 8 control). All of participants were in-patients at local hospital and had been received training appropriate to the purpose of each group program. Experimental period was carried out 30 minutes/day, five days/week, during four weeks. The experimental group trained the task-oriented training using the PNF and control group trained the task-oriented training. Fugl-meyer assessment scale and Modified Barthel Index was measured to compare the upper arm function and activities of daily living. We were measured before and after the training. Results : The results of the study were as follow: Fugl-meyer assessment scale was significantly increased both groups(p<.05), and significant between groups(p<.05). Modified Barthel index was significantly increased both groups(p<.05) and between groups(p<.05). Conclusion : PNF can be effective in improving upper arm function and ability to perform daily life of chronic stroke patients.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2006년도 가을 학술발표논문집 Vol.33 No.2 (C)
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• pp.433-437
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• 2006

유스케이스(Use Case)를 기반으로 하는 관점지향 소프트웨어 개발방법론(Aspect-Oriented Software Development, AOSD)은 사용자 중심의 시스템을 설계하는데 있어 매우 중요한 소프트웨어 개발방법론으로 부각되고 있다. 학습관리시스템(Learning Management System, LMS)은 사이버교육을 지원하는 핵심시스템이며, 다양한 요구사항을 제시하는 청소년층을 대상으로 하기 때문에 높은 유지보수성과 확장성을 필요로 한다. 본 논문에서는 관점지향 소프트웨어개발 방법론을 6단계 모델링 방법을 통해 사이버 교육을 위한 학습관리시스템에 적용하였다. 적용 결과 학습관리시스템에서 횡단관심사의 모델링을 통한 관점지향 소프트웨어 개발은 유스 케이스 중심으로 모델링되어 사용자 중심의 시스템 유지보수성과 재사용성을 높일 수 있음을 보였다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2001년도 봄 학술발표논문집 Vol.28 No.1 (B)
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• pp.670-672
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• 2001

A Design of Theme-Oriented History Learning System Using GIS Based on WWW 초고속통신망과 웹 인터페이스의 발전은 교육환경에 많은 변화를 가져왔으며, 더불어 웹을 기반으로 하는 교육적 활용방법이 활발히 연구되고 있다. 본 논문에서는 기존의 정적지도를 이용한 획일적 역사학습방법을 지양하고, 동적인 학습이 가능하도록 클라이언트 중심의 웹기반 GIS를 이용한 테마지향 역사학습시스템을 설계하였다. 설계된 시스템은 크게 5가지 모듈로 구성되고 학습자 관리 DB, 학습 정보 DB, GIS DB와의 인터페이스 기능을 갖도록 기수라고, 이들 관계를 OMG 클래스다이어그램으로 보였다. 본 논문의 역사학습시스템은 학습자가 하는 주제를 선택하여 역사학습 정보를 요구할 때 지리적 위치를 지도상에 보여줌으로서 시각적이고 공간적인 이해를 가능하게 하였다. 또한 본 시스템은 텍 ;, 이미지, 사진, 동영상 등의 속성정보를 이용한 멀티미디어 정보와 효과적인 학습정보 검색을 위한 다양한 검색방법을 제공하여, 학습자의 흥미를 유발시키고 역사학습을 효율성을 높일 수 있도록 하였다.록 하였다.

• 대한수학교육학회지:수학교육학연구
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• 제9권1호
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• pp.15-29
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• 1999

The purpose of this study is to investigate various mathematics education improvement or reform movements of Western Europe countries (United Kingdom, Germany, etc.) and the United States of America, to see the effects of those movements on Korean mathematics education circle, and to find a direction of Korean mathematics curriculum design. The third Korean mathematics curriculum was most affected by the new mathematics movement of the United States of America. This movement was emphasizing abstract structure, logical rigorousness and discovery learning of mathematics, which was fired from late fifties. Korean mathematics education circle imported the new mathematics early seventies from USA, but serious problems had been found at that time in USA. This study has pointed out that new math oriented Korean mathematics curriculum was not proper and the new mathematics itself was disastrous for most Korean students' learning. The study also points out that they hurried too much introducing the new mathematics and publishing new mathematics oriented textbooks but they had not sufficient teacher training programs. In our future mathematics curriculum reform, we have to remember such a historical lesson.

• 한국비블리아학회지
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• 제23권4호
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• pp.93-108
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• 2012

본 연구는 문헌정보학과 학생들의 조별활동의 성과를 높이기 위해 위키를 활용한 교육을 진행할 때 발생하는 문제점을 발견하고 이를 개선함으로써 학생들의 학습능력을 향상시키기 위한 방안을 마련하기 위해 수행되었다. 학생들이 수업을 위해 사용한 위키 사이트에서의 활동은 물론, 수강 학생들 중 12명을 대상으로 인터뷰를 진행하였다. 연구결과, 학생들이 수강하는 수업에서 조별활동은 보편적인 것으로 나타났고 개별적으로 과제를 하는 것보다 조별로 하는 과제로부터 더 많은 학습을 하는 것으로 나타났다. 그러나 학습의 과정에서 위키사용경험이 없다는 점과 학점을 중시하게 됨으로써 관계보다는 과제중심의 조별활동이 이루어지는 문제점이 발견되었다. 또한, 새로운 개념의 도구가 제안되었다 할지라도 과거의 방식에 따라 조별활동을 진행하는 것으로 나타났다. 따라서 학생들에게 위키사용 방법을 교육함과 동시에 협업을 통한 학습의 교육적 효과를 경험해보는 것이 중요하다. 또한 관계중심의 조별활동이 이루어진다면 그 교육적 효과가 커질 것으로 기대된다.