• 디지털산업정보학회논문지
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• 제19권3호
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• pp.105-115
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• 2023

This study analyzed the effects of learning participation motivation and collaborative self-efficacy on knowledge sharing behavior in an online learning environment. Collaborative learning in the online learning environment took the initiative in team formation, learning topic selection, learning planning and execution, and reflection. Collaborative learning was operated as an extracurricular program, and a survey was conducted targeting students who finally completed all learning activities. The results of the study are as follows. First, goal-oriented motivation and self-Efficacy for group work, showed significant influence on knowledge sharing behavior. Second, activity-oriented motivation did not show a statistically significant effect relationship. Interpreting the analysis results, it can be judged that the higher the goal-oriented motivation and self-Efficacy for group work of students who performed collaborative learning in an online learning environment, the higher the willingness to share knowledge, skills, and information they know. This study explored the outcomes of collaborative learning conducted in an online learning environment. It is meaningful that the learner's learning participation motivation was identified and the effect of self-Efficacy for group work, which can be expressed in collaborative learning situations, on knowledge sharing behavior, which is a necessary behavior for group performance, is significant.

• 한국게임학회 논문지
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• 제4권3호
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• pp.49-54
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• 2004

The social interest for collaborative teaming and educational game has been increased. In this paper, we investigated the educational value of collaborative teaming and game. Based on this investigation, we propose an educational on-line game model for collaborative teaming. Although the proposed model is still conceptual design, it sufficiently shows that on-line RPG game can be a good collaborative teaming method for young children. We will perform a comparison study on the teaming achievement between the two methods: 1) the on-line game proposed in this paper, 2) the conventional educational method performed in normal school.

• Educational Technology International
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• 제22권2호
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• pp.311-339
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• 2021

This study examined the effects of scaffolding types (Toulmin's Argument Pattern: TAP or Argumentation Vee Diagram: AVD) and individual metacognition levels (low or high) on students' learning achievement in online collaborative argumentation. A total of 191 Chinese undergraduates took part in this study. They were randomly assigned to either the TAP scaffolding, AVD scaffolding, or no scaffolding condition. They were teamed up in small groups of two or three students to argue with their peers using SNS as the online collaborative argumentation environment. The results revealed that students in the TAP and AVD scaffolding conditions did not gain significantly higher retention or transfer scores than students without scaffolding. However, students in the TAP scaffolding condition significantly outperformed those in the AVD scaffolding condition on transfer scores. Individual metacognition did not significantly affect learning achievement in online collaborative argumentation. Additionally, there was no significant interaction effect between scaffolding types and individual metacognition levels on retention or on transfer. The findings have implications for scaffolding design for online collaborative argumentation and also suggest that more attention should be paid to social metacognition rather than to individual metacognition when students work collaboratively.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2005년도 추계 학술발표대회 논문집
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• pp.182-183
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• 2005

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권8호
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• pp.2948-2966
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• 2014

To promote recommendation services through prediction quality, some privacy-preserving collaborative filtering solutions are proposed to make e-commerce parties collaborate on partitioned data. It is almost probable that two parties hold ratings for the same users and items simultaneously; however, existing two-party privacy-preserving collaborative filtering solutions do not cover such overlaps. Since rating values and rated items are confidential, overlapping ratings make privacy-preservation more challenging. This study examines how to estimate predictions privately based on partitioned data with overlapped entries between two e-commerce companies. We consider both user-based and item-based collaborative filtering approaches and propose novel privacy-preserving collaborative filtering schemes in this sense. We also evaluate our schemes using real movie dataset, and the empirical outcomes show that the parties can promote collaborative services using our schemes.

• 한국컴퓨터정보학회논문지
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• 제21권3호
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• pp.17-23
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• 2016

In this paper, we propose a model of the collaborative authoring tool and its implementation results. In the 'collaborative authoring and automatic distribution system,' users can create eBooks by using partial works (primary and edited sources) on the basis of copyright information registered by the primary author. The Collaborative Authoring Tool is a part of "the collaborative authoring and automatic distribution system" developed through research on "the development of key technologies of social work protection and content mashup tools" as an R&D project granted by the Korea Copyright Commission from 2013. In the collaborative authoring and automatic distribution system, authors of primary sources such as images, audio clips and video clips for eBooks can register them together with the copyright information; users can edit the primary sources to produce secondary sources and in turn register the secondary sources on the system; and users can create and distribute eBooks by using the sources registered in the system.

• 로봇학회논문지
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• 제15권3호
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• pp.256-268
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• 2020

This study is about a design method for deriving task safety scenarios for the application of collaborative robots. A five-step process for deriving task safety scenarios for collaborative robots has been proposed, which focuses on the type of collaboration between human and collaborative robot. The three types of collaboration were classified according to the collaboration workspace and the worktime of human and collaborative robot. Based on these three types of collaboration, task safety scenarios include scenarios that predict risk from unintended use during work. Collaboration with collaborative robot is a human-centered process because human actions can create dangerous situations. Besides, we improved the understanding of this design methodology by presenting examples of the application of task safety scenarios according to the process for each type of collaboration.

• 동의생리병리학회지
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• 제28권4호
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• pp.446-451
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• 2014

The purpose of this study was to investigate different attitudes of officers depending on system of collaborative practice between traditional Korean medicine and western medicine. A total of 103 officials were surveyed using structured questionnaires. Data were analyzed using descriptive statistics, ${\chi}^2$ test with the SPSS program. Use of oriental medicine clinic was significantly higher and use of general hospitals was significantly lower in a group of users (p=.021). Higher rates of disease status were found in a group of users (p=.024). 'Overcome limits of Traditional Korean Medicine and Western Medicine' and 'collaborative practice would bring benefits' as the reasons of using collaborative practice between Traditional Korean Medicine and Western Medicine showed higher rates (p<.001). It showed high interests in collaborative practice between Traditional Korean Medicine and Western Medicine in two groups, but higher rates of prospect of collaborative practice between Traditional Korean Medicine and Western Medicine revitalization were found in the group of users. Also, more than 60% of the officers showed positive attitudes in the system of the collaborative practice. Therefore, correct researches on actual conditions about collaborative practice between Korean and Western Medicine and positive and negative aspects of this collaborative practice pointed by candidates need to be considered in order to improve candidates' health condition.

• 한국도서관정보학회지
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• 제49권3호
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• pp.193-217
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• 2018

이 연구는 해외 공동보존서고의 자료이관지침과 자료제공지침을 분석하여 향후 국내 공동보존서고 운영에 참고할 수 있는 실질적인 데이터를 제공하기 위해 실시되었다. 이를 위해 해외 대학도서관을 중심으로 운영되고 있는 공동보존서고 7개관의 홈페이지와 관련 자료를 분석하였다. 자료이관지침은 이관자료의 유형과 수량, 자료유형별 이관기준, 자료의 소유권 처리, 자료의 폐기 등을 중심으로, 자료제공지침은 보존서고 관내이용과 자료대출/전송서비스 등 관외서비스 등을 중심으로 살펴보았다. 이 연구의 결과는 향후 국내 공동보존서고 운영지침 수립에 기초데이터로 활용할 수 있을 것이다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2013년도 추계학술발표대회
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• pp.1156-1157
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• 2013

The mobile application market has been growing extensively in recent years. Currently, Apple's App Store has more than 400,000 applications and Google's Android Market has above 150,000 applications. Such growth in volumes of mobile applications has created a need to develop a recommender system that assists the users to take the right choice, when searching for a mobile application. In this paper, we study the recommendation system building tools based on collaborative filtering. Specifically, we present a study on comparison analysis of collaborative filtering in Java and R statistical software. We implement the collaborative filtering using Java's Apache Mahout and R's recommenderlab package. We evaluate both methods and describe the advantages and disadvantages of using them in order to implement collaborative filtering.