• 한국수학교육학회지시리즈A:수학교육
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• 제42권5호
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• pp.607-622
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• 2003

The research was aimed at finding the dynamic aspects of the linguistic and social interaction with mathematical concept development using a graphing calculator in collaborative learning. This study was broadly divided into two categories: "Knowledge Construction Statement" for understanding how the verbal interaction works when a graphing calculator is used, and "Teacher's Instructional Role" for the research on the reaction of the students and on the teacher's role as a guide in helping students to construct their knowledge. This research used a case study in a collaborative learning environment. An attempt was made to show clearly how the students interacted with one another in a technology environment using a graphing calculator as a tool. A graphing calculator promoted the students' linguistic interaction and changed the characteristics of the linguistic interaction. Although it didn't show the different aspects completely, some changes of the linguistic traits were perceived.aits were perceived.

• 전자통신동향분석
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• 제37권6호
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• pp.32-42
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• 2022

Recently, decentralized approaches to artificial intelligence (AI) development, such as federated learning are drawing attention as AI development's cost and time inefficiency increase due to explosive data growth and rapid environmental changes. Collaborative AI technology that dynamically organizes collaborative groups between different agents to share data, knowledge, and experience and uses distributed resources to derive enhanced knowledge and analysis models through collaborative learning to solve given problems is an alternative to centralized AI. This article investigates and analyzes recent technologies and applications applicable to the research of multi-agent collaboration of AI bots, which can provide collaborative AI functionality autonomously.

• 융합정보논문지
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• 제12권3호
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• pp.158-170
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• 2022

본 연구의 목적은 협력학습 기반 수업에서의 동료평가에 대한 수업 만족도를 분석하는 것이다. 협력학습 기반 수업에서 동료평가를 위한 수업 절차 설계, 동료평가 유형과 문항 개발, 동료평가 실시, 수업만족도 조사 및 분석하여 교육적 시사점을 도출하고자 하였다. 연구대상은 문제중심학습과 프로젝트 기반 수업으로 선정된 협력학습 기반 수업 참여자를 대상으로 하였다. 협력학습 기반 수업에서의 동료평가에 대한 수업 만족도는 수도권 소재 A대학에서 협력기반 수업 참여자 168명을 대상으로 설문조사를 진행하였다. 연구도구는 동료평가를 위한 협력학습 절차는 팀 구성, 과제 수행 계획, 과제수행, 중간평가, 과제 수행 완료, 발표 및 평가, 자기평가로 설계하였고, 동료평가는 팀내. 팀간 평가로 유형화 하였고, 단계별 동료평가문항을 설계하였다. 동료평가 문항의 내용타당도는 전문가 12인의 CVR로 평정하였다. 연구결과에서 동료평가의 수업만족도는 평균 4.05(SD=.91)로 높게 나타났고 수업의 집중, 수업의 성실성, 자발성, 학습 분위기의 순으로 나타났다. 수업 만족도 수준 차이 검증 결과, 성별과 학년에서는 차이가 나타나지 않았으며, 수업 유형에서는 문제중심학습이 프로젝트기반 학습에 비하여 만족도 수준이 높게 나타났고 통계적으로 유의미하였다. 본 연구의 결과는 고등교육에서의 동료평가 적용 및 확대를 위한 수업설계와 운영의 시사점을 제공하는 데에 의의를 가진다.

• 대한예방한의학회지
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• 제15권3호
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• pp.83-99
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• 2011

Objective : To explore and describe coordinators' experiences in collaborative practices between the traditional Korean medicine doctors and the western medicine doctors. Methods : Five coordinators who agreed and completed the informed consent to take part in this qualitative study were interviewed thoroughly and tape-recorded. Transcribed data were analysed thematically with ground theory. Results : Most participants started their coordinating work without sufficient knowledge and systemic support. They, however, could find their identity as coordinators for collaborative practices through preparing manuals and protocols, providing comprehensive patients care, and experiencing the partnership with doctors. To coordinate Korean medicine and western medicine practices efficiently, participants have tried to enhance their professional knowledge and skills, and establish favorable networks. On the other hand, they were in dilemmas of being a multi-player and imbalance of responsibilities and powers in their jobs. Conclusions : It is recommended to clarify job description of coordinator for collaborative practices, develop training programme, and provide the institutional support for wider recognition of coordinator. Findings from this study should be considered in both Korean medicine-western medicine collaborative research and practice.

• 컴퓨터교육학회논문지
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• 제9권2호
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• pp.27-36
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• 2006

본 연구는 e-Learning 협력학습 기술 개발 지원을 위한 기반 연구로서, e-Learning 에서의 협력학습을 위한 기본모형 개발과 협력학습 활동에서 발생하는 학습자들의 학습행위요소를 세부적으로 분석 제시하는 것을 연구의 목적으로 하였다. 연구의 목적을 달성하기 위하여 면대면 교실수업에서 이루어져 온 다양한 협동학습 모형들을 분석하였으며, 면대면과 온라인 환경에서 협력학습 및 커뮤니케이션 활동을 강조하는 문제중심학습, 프로젝트 학습, 탐구학습, 토론학습 등 교수모형에 기초한 주요 학습모형들의 절차와 단계, 학습활동 등도 분석하였다. 연구 결과 e-Learning에서의 협력학습을 위한 일반 모형과 세부 학습행위요소들, 그리고 시스템적 지원기능들이 제시되었으며, 추후 연구를 위한 과제가 제안되었다.

• Architectural research
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• 제7권1호
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• pp.1-9
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• 2005

The needs of collaboration among design participants spread in different locations is emphasized in the early design stage in order to not only save time and provide places to meet and talk, but also to save cost for those events as well: This is being realized by the Internet, which helps support a networked, integrated real-time multi-user environment. As the base for collaboration activities moves from physical places to cyberspace, the methods of connecting every participant by means of a computer technology have been desired and considered. This study aims at investigating today's collaboration technology in the architectural design process, especially focused on the early stages, in terms of temporal dimensions. In addition, major concepts for and previous efforts and tools of collaborative design have been examined, and a specific recommendation has been proposed for future development of collaborative architectural design systems: That is distributed collaboration, which is accessible and comprehensible to all the professionals in the building design team, which not only allows the sharing of information but also the sharing of understanding, and which facilitates the development of design tools for different aspects of the envisioned collaborative design environment.

• Advances in environmental research
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• 제3권1호
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• pp.87-106
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• 2014

The concern for the global environment ensues researchers from various disciplines to work in collaboration to tackle with the issues of sustainability and environmental conservation for well-being of the people. In this study, we have selected and focused on few basic environment-effecting factors such as temperature, humidity, carbon dioxide and oxygen concentration level and referred them as meteorological data. In this paper, we present the development of our own customized hardware setup, environmental monitoring device (EMD) to obtain the data. Utilizing the relationship among these basic parameters, represented in the form of formulas and equations, we tried to encode them using Matlab programming. Data visualization is achieved by plotting the graphs of basic parameters obtained from EMD as well for the derivatives using Matlab programs.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 컴퓨터소사이어티 추계학술대회논문집
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• pp.175-178
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• 2003

Two defects have been pointed out in existing user-based collaborative filtering such as sparsity and scalability, and the research has been also made progress, which tries to improve these defects using item-based collaborative filtering. Actually there were many results, but the problem of sparsity still remains because of being based on an explicit data. In addition, the issue has been pointed out. which attributes of item arenot reflected in the recommendation. This paper suggests a recommendation method using nave Bayesian algorithm in hybrid user and item-based collaborative filtering to improve above-mentioned defects of existing item-based collaborative filtering. This method generates a similarity table for each user and item, then it improves the accuracy of prediction and recommendation item using naive Bayesianalgorithm. It was compared and evaluated with existing item-based collaborative filtering technique to estimate the accuracy.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2004년도 추계학술대회
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• pp.203-210
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• 2004

Due to the explosion of e-commerce, recommender systems are rapidly becoming a core tool to accelerate cross-selling and strengthen customer loyalty. There are two prevalent approaches for building recommender systems - content-based recommending and collaborative filtering. Collaborative filtering recommender systems have been very successful in both information filtering domains and e-commerce domains, and many researchers have presented variations of collaborative filtering to increase its performance. However, the current research on recommendation has paid little attention to the use of time related data in the recommendation process. Up to now there has not been any study on collaborative filtering to reflect changes in user interest. This paper proposes dynamic fuzzy clustering algorithm and apply it to collaborative filtering algorithm for dynamic recommendations. The proposed methodology detects changes in customer behavior using the customer data at different periods of time and improves the performance of recommendations using information on changes. The results of the evaluation experiment show the proposed model's improvement in making recommendations.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.60-70
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• 2009

This paper explores the ways in which collaborative working among multiple disciplines in building projects can be more effective and efficient. It focuses on the support that can be provided by the latest development in information and communication technologies. It also considers the growing interdependence between participants in the process and their changing roles as they harness the power of the new technologies in new collaborative arrangements. It is argued that collaborative working should be addressed holistically from the technological angle, the social angle, as well as the organisational angle, to ensure its successful implementation in the construction industry. A case study is given to illustrate the use of ICT in supporting value management studies. The key issues surrounding the emerging field of research - collaborative construction information management - and the potential benefits and challenges of its wide adoption are discussed at depth.