• Journal of Digital Convergence
• /
• v.14 no.6
• /
• pp.263-270
• /
• 2016

In this study, it was attempted to develop a grade-customized statistical analysis system that can be operated by a teacher without professional knowledge of statistics by utilizing profiling in the education sector. For this, with the convergence of techniques of profiling into the education sector, it examined the elements necessary for building a customized student multidimensional analysis system. Referring to the overall configuration and the current state to build multidimensional analysis system utilizing practical profiling, it showed the implementation result of the algorithm applied to each statistical method, and presented the differences and superiority to existing systems. Once the system based on the proposed techniques is built, considering differences of students' needs and abilities and clarifying precise objectives and standards, with the improvement of satisfaction in public education, it is possible not only to reduce expense of prior and private learning but also realize self-directed learning suitable to one's learning ability and aptitude.

• Proceedings of the Korea Association of Information Systems Conference
• /
• 2000.11a
• /
• pp.29-35
• /
• 2000

본 연구는 멀티미디어의 기본 구성요소인 링크와 노드를 처리변수로 하고 사용자의 편의성과 유용성에 대한 인식을 종속변수로 해서 링크의 숫자와 노드의 크기가 사용자의 인식에 어떻게 영향을 미치는지에 대해 밝히고자 했다. 먼저 2x3 팩토리얼 디자인에 따라 각각 다른 처리변수의 조합을 가진 6개의멀티미디어 자료가 구축이 되었으며 경영대 학생들을 대상으로 실험을 하여 자료를 수집했다. 수집된 자료는 타당성 검사와 신뢰성 검사를 거친 뒤 통계적 분석을 하였다. 종속변수에 대한 상관관계가 검사되었으므로 변량 분산 분석으로 처리변수의 종속변수에 대한 통계적 유의성을 검사했으며 단변량 분산분석 중 이원배치분산분석으로 각각의 종속변수에 대한 처리변수의 영향을 검토했다. 인구통계학적 자료의 종속변수에 대한 상관관계가 발견됨에 따라 다변량 공분산분석과 단변량 공분산분석을 통해 인구통계학적 자료의 영향을 조사했다. 마지막으로 평균차이분석을 통해 실험 참가자들의 선호도를 조사했다. 본 연구의결과를 요약하면 처리변수는 사용자 인식 편의성과 인식 유용성에 영향을 미치고 링크 수와 노드 크기가 멀티미디어의 설계에 중요한 요인인 것이 밝혀졌다.

• Communications of Mathematical Education
• /
• v.19 no.1 s.21
• /
• pp.151-165
• /
• 2005

효과적인 교육을 위한 다양한 연구들이 진행되어 왔지만, 이러한 결과를 실제 수업현장에 적용하기에는 많은 시간과 노력 등이 필요하여 잘 활용되지 못하고 있는 것이 현실이다. 따라서 교실 수업, 특히 지필 위주의 수업에서는 여전히 따분해하며 집중하지 못하는 학생들을 흔하게 볼 수 있다. 본 연구에서는 학생들의 적극적 참여를 통한 효과적인 교육을 구현하기 위한 방안으로 구성주의적 교수학습 방안과 정보 기술을 기반으로 교수자와 개별 학생들 사이의 실시간 상호작용을 극대화시키는 교수방안을 제안하고자 한다. 구현 사례로 통계적 추정의 표본추출 단원에 적용할 수 있는 교수학습 모형과 시스템을 제시한다.

• The Journal of Korean Association of Computer Education
• /
• v.17 no.6
• /
• pp.115-122
• /
• 2014

One of the problems with current youth generations is increasing rate of violence and suicide in their school lives, and this study aims at the design of a sentiment analysis system to prevent suicide by uising big data process. The main issues of the design are economical implementation, easy and fast processing for the users, so, the open source Hadoop system with MapReduce algorithm is used on the HDFS(Hadoop Distributed File System) for the experimentation. This study uses word count method to do the sentiment analysis with informal data on some sns communications concerning a kinds of violent words, in terms of text mining to avoid some expensive and complex statistical analysis methods.

• The Journal of Korean Association of Computer Education
• /
• v.11 no.1
• /
• pp.65-74
• /
• 2008

In this paper, we introduce an analysis system for answer dataset by using a data mining method. We analyze students' answer data collected from a test including multiple choice question items, and find associations between the items. Analysis of evaluation results based on our system will not only provide correct information on students' achievement levels but also provides a basis for modifying weaknesses of the evaluation procedures, question items, or teaching/learning procedures. Furthermore, it will enable us to improve the quality of question items for future use so that we can secure itemsets of high quality.

• The Korean Journal of Applied Statistics
• /
• v.2 no.2
• /
• pp.91-101
• /
• 1989

통계 전문가 시스템(Statistical Expert System, SES) 또는 Knowledge-Based Statistical Consulation System은 "통계적 방법에 의한 연구 과정(계획,자료수집,분석,결과해석 등)에서 발생하는 문제를 효과적,효율적으로 해결하기 위해 통계 전문가 또는 통계 상담자의 경험과 지식을 내장하여 이를 처리할 수 있도록 설계된 전산 시스템"으로 정의할 수 있을 것이다.SES를 구축함으로써 기대되는 효과는 1.초보사용자의 통계기법 오용을 방지하고, 2.기존 통계 software가 지니지 못한 탐색 및 설명기능, 결과해석기능 등을 제공하며, 3.사용자(초보자 및 전문가)에게 교육 및 통계전략에 대한 실험 환경을 제공하고, 4.전문가로 하여금 일상적이고 기계적인 업무로부터 벗어나 좀 더 기본적인 문제 해결에 전념할 수 있도록 보조적인 역할을 수행하는 것 등이다.행하는 것 등이다.

• Journal of Engineering Education Research
• /
• v.9 no.4
• /
• pp.71-82
• /
• 2006

To accomplish the educational objectives of a department, a system for CQI(Continuous Quality Improvement) is necessary. Improving the educational system by survey analysis is one of the most important factors for accomplishing the educational objectives. In general, survey analysis is carried out by using statistical distribution on an attribute or correlation analysis between two attributes. However, these analysis schemes have a limitation that they cannot find relations among various attributes. In this paper, an in-depth survey analysis method applying data mining techniques is presented. Data mining is a technique for extracting interesting knowledges from a large set of data. Survey from undergraduate students in the School of Computing of Soongsil University is analyzed in this paper by using a data mining tool, called Clementine. Results of Clementine analysis show the relationship between 'grade', and other attributes hierarchically, and provide useful information that can be applied in student consulting and program improvement.

• The Journal of the Korea Contents Association
• /
• v.18 no.3
• /
• pp.354-360
• /
• 2018

Recently, the computer aided learning system has promoted a new educational concept and education system. The purpose of this study is to construct a theoretical model for the epistemic frame and evaluation tool which is emphasized according to the 21st century. Specifically, first, this study conducted a domain analysis of epistemic frame. Second, this study developed an evaluation tool to measure epistemic frame. Finally, the evaluation tool is examined in terms of validity and reliability using factor analysis and Cronbach's alpha. As a result, the theoretical model was presented through the consultation of the Advisory Group and the evaluation tool was empirically validated. We expect that this study will provide a useful information to researchers and practitioners who want to develop a computer based learning tool for learning epistemic frame.

• Journal of the Korean Society for information Management
• /
• v.28 no.3
• /
• pp.179-195
• /
• 2011

The purpose of this study is to investigate the implications that GIS(Geographic Information Systems) can have in public library collection selection and service development from a marketing perspective. GIS is a computer system capable of assembling, storing, manipulating, and displaying geographically referenced information. Through the understanding and utilization of GIS, we can collect geographical, transportation, political, legal, demographic, economic, social, cultural, educational, and recreational information of the community. Public libraries can utilize GIS for market research, including customer analysis to select library collection and develop library service based on library users' needs. As a result, public libraries can find a way to make a lasting relationship with users which is the final goal of marketing activities.

• Journal of The Korean Association of Information Education
• /
• v.9 no.2
• /
• pp.319-327
• /
• 2005

With the advent of computers and network, the Internet(World Wide Web) is becoming more prevalent than ever before. The ICT and the policy of the development of information technology are also applied to the elementary school environment. In the elementary school field, we can easily find that children have different web-site preferences based on gender. There is a lot of research about adult gender issues for the purpose of customer analysis to increase business profits. However, there is little research about the gender factor in web-based instruction or educational web sites. Elementary school children are beginning to experience the Internet. In this study, we consider the analysis of the use and perception of the Internet based on gender differences, and discuss concrete guidelines in regards to elementary school pupil and therefore create Web Based Instruction or Educational Web Contents.