• Title, Summary, Keyword: Distance Learning

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On-line PLC Laboratories Using Distance Learning (원거리 학습을 이용한 실시간 PLC 실습)

  • Lee, Sung-Youl
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • pp.310-315
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    • 2005
  • This paper describes the development of on-line Programmable Logic Controller (PLC) laboratories to teach the detailed operation of a PLC using distance learning approach. The PLC has become a key component to provide intelligence for machines in CIM environment. This study introduces a case study that teaches PLC programming in distance learning environment. The study describes the contents of PLC laboratories and workstation set ups. The study concludes with problems found and proposes the ways to improve the on-line laboratories.

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Detecting outliers in segmented genomes of flu virus using an alignment-free approach

  • Daoud, Mosaab
    • Genomics & Informatics
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    • v.18 no.1
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    • pp.2.1-2.11
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    • 2020
  • In this paper, we propose a new approach to detecting outliers in a set of segmented genomes of the flu virus, a data set with a heterogeneous set of sequences. The approach has the following computational phases: feature extraction, which is a mapping into feature space, alignment-free distance measure to measure the distance between any two segmented genomes, and a mapping into distance space to analyze a quantum of distance values. The approach is implemented using supervised and unsupervised learning modes. The experiments show robustness in detecting outliers of the segmented genome of the flu virus.

A Study on Student Perception of Participation in Distance Learning : Differences Between Working and Non-Working Students (직장인과 비직장인의 원격강의 수강참여 인식 비교연구)

  • Nam Sang-Zo
    • The Journal of the Korea Contents Association
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    • v.5 no.2
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    • pp.1-5
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    • 2005
  • It is assumed that there is difference between working students and non-working students with respect to distance learning. In this paper, we surveyed attendance in distance learning courses to verify differences in perception of faithfulness, studying time, and completion of content reading. The results are analyzed and reported. The statistical analysis indicates that working students perceive that they are less faithful to their lectures. However, the results pertaining to participation time per week and content reading showed no statistical difference between working students and non-working students.

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An Empirical Study on Students' Problems of Internet-based Distance Learning (인터넷 원격교육에서 학습자 관점의 문제점에 관한 연구)

  • Nam Sang-Zo
    • The Journal of the Korea Contents Association
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    • v.6 no.3
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    • pp.102-107
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    • 2006
  • While Internet-based distance learning has proliferated, its educational effectiveness remains controversial. As such, investigation into the problems of Internet-based distance learning is important and fundamental for an assessment of its educational effectiveness. In this study, problems of Internet-based distance learning are grouped into four categories, environmental problems, student problems, course design problems and operational problems. Based on survey data from 606 distance learning participants, perceptional and relative seriousness of problems are analysed. The results indicate that perceptional seriousness of all the problems is not statistically important. However, the findings indicate that the relative seriousness of self willingness among student problems and cheating within operational problems is most remarkable. In contrast, the relative seriousness of traditionally recognized problems such as H/W availability and network speed among environmental problems is least remarkable. An analysis of demographic differences such as sex, employment and age in terms of seriousness of problem is also performed. The results reveal the existence of statistically significant differences according to sex, employment, and age difference with regard to seriousness of problems.

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WWW Based Instruction Systems for English Learning: GAIA

  • Park, Phan-Woo
    • Journal of The Korean Association of Information Education
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    • v.3 no.2
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    • pp.113-119
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    • 2000
  • I studied a distance education model for English learning on the Internet. Basic WWW files, that contain courseware, are constructed with HTML, and functions, which are required in learning, are implemented with Java. Students and educators can access the preferred unit composed of the appropriate text, voice and image data by using a WWW browser at any time. The education system supports the automatic generation facility of English problems to practice reading and writing by making good use of the courseware data or various English text resources located on the Internet. Our system has functions to manage and control the flow of distance learning and to offer interaction between students and the system in a distributed environment. Educators can manage students' learning and can immediately be aware of who is attending and who is quitting the lesson in virtual space. Also, students and educators in different places can communicate and discuss a topic through the server. I implemented these functions, which are required in a client/server environment of distance education, with the use of Java. The URL for this system is "http://park.taegu-e.ac.kr" in the name of GAIA.

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Android-Based Synchronous Mobile Distance Learning System with Session Recording and Replay Support (세션 레코딩과 리플레이를 지원하는 안드로이드 기반 동기식 모바일 원격 교육 시스템)

  • Sung, Dae-Hyun;Lee, Jang-Ho
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.6
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    • pp.1369-1380
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    • 2011
  • Most existing mobile distance learning systems are asynchronous ones that allow students to download lecture video and presentation material. However, there are a few synchronous real-time mobile distance learning systems that support slide, annotation, feedback from student, and lecture video and audio at the same time. These live mobile distance learning systems have an advantage of supporting real-time interaction between students and a lecturer thereby making students understand the lecture better. But, they also have a disadvantage in the sense that they don't allow students to experience the past lecture. This problem can be solved by recording and replaying lecture session. So far, there are few mobile distance learning systems that support session recording and replay. This paper presents a synchronous mobile distance learning system that supports video and audio, slide with annotation, and real-time feedback from students, as well as session recording and replay, which is not supported by the existing mobile distance learning systems. The evaluation of the system among students shows that 61.3% of them were satisfied while 3.2% weren't.

Estimating Farmland Prices Using Distance Metrics and an Ensemble Technique (거리척도와 앙상블 기법을 활용한 지가 추정)

  • Lee, Chang-Ro;Park, Key-Ho
    • Journal of Cadastre & Land InformatiX
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    • v.46 no.2
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    • pp.43-55
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    • 2016
  • This study estimated land prices using instance-based learning. A k-nearest neighbor method was utilized among various instance-based learning methods, and the 10 distance metrics including Euclidean distance were calculated in k-nearest neighbor estimation. One distance metric prediction which shows the best predictive performance would be normally chosen as final estimate out of 10 distance metric predictions. In contrast to this practice, an ensemble technique which combines multiple predictions to obtain better performance was applied in this study. We applied the gradient boosting algorithm, a sort of residual-fitting model to our data in ensemble combining. Sales price data of farm lands in Haenam-gun, Jeolla Province were used to demonstrate advantages of instance-based learning as well as an ensemble technique. The result showed that the ensemble prediction was more accurate than previous 10 distance metric predictions.

A Design for Web-based Distance Learning and Management System of Children's English Education (웹 환경에서 아동을 위한 원격영어교육관리시스템 설계)

  • Choi, Li-Ra;Yoon, Yong-Ik
    • The Journal of Korean Association of Computer Education
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    • v.5 no.1
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    • pp.45-55
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    • 2002
  • So far, there were a few web-based distance English learning systems for children. The existing systems for children have not appropriately reflected their learning characteristics and interests, since most of those systems regards mainly adults as targets. This thesis is aimed at proposing more effective educational service modules of web-based real-time system in order to encourage children's interests as much as possible in learning English. The web-based real-time distance learning system is a model based on the survey over the current use and satisfaction status of elementary school students who have actually used those kinds of systems. With the great expectation of more effective way of learning English, it also focuses on attracting parents to participate the learning process by providing a service to look over, in real-time, what their children do through the internet-based English learning system.

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Analysis of e-Learning Contents in Distance Teacher Training for Quality Improvement (콘텐츠 품질 향상을 위한 교원연수 이러닝 콘텐츠 분석)

  • Kim, Yong
    • The Journal of the Korea Contents Association
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    • v.13 no.9
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    • pp.476-484
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    • 2013
  • The purpose of this study was to analyze the quality of 67 kinds of e-learning contents in an attempt to boost the effectiveness of distance teacher training. As a result of analyzing, the e-learning contents were rated highest in terms of 'training content,' followed by 'instructional design,' 'teaching & learning strategies,' 'evaluation' and 'interaction.' The scores of 'teaching & learning strategies,' 'evaluation' and 'interaction' were below 80 that was the standard of quality certification. In mean comparison(ES) of contents quality level between certified contents and non certified contents, 'instructional design' had the largest ES(effect size), followed by 'teaching & learning strategies,' 'evaluation'. In the analysis of evaluation factors, most of factors had a large effect such as 'webpage layout', 'selection of instructional design'. The findings of the study are expected to suggest what improvements should be made in the development of e-learning contents for distance teacher training.

A Study on the Distance Learning Education for Fashion Illustration (실기 중심 의상디자인 교과 원격교육 도입방안 연구 - 패션일러스트레이션 교육을 중심으로 -)

  • Kim Lee-Young;Park Meegnee
    • Journal of the Korean Society of Costume
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    • v.55 no.3
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    • pp.150-163
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    • 2005
  • Distance Learning Education has been adopted as an alternative educational method to actively face the changing educational field. Fashion design education essentially requires not only a theoretical but also a practical process in which feedback comes through personal interactions between an instructor and a student. Hence, the existing WBI system exemplifies its limitations by applying only a one-way methodology that limit interactions based only on the theoretical texts. The objective of this study was to reveal the effects of an originally designed Distance Education program factoring in a teaching-learning methodology that addresses the practical demands of a fashion design program. So It analyzed the pre-existing conditions through a questionnaire survey of 472 students and 60 fashion design instructors to determine how the traditional fashion design education is different from other programs and which method is being applied. then, It designed and applied an original web-based distance educational system specifically incorporating the needs of the fashion design curriculum based on the data collected from the survey questionnaire.