• Title/Summary/Keyword: Collaborative Communication

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Agent-based Collaborative Design Environment using WWW (WWW을 이용한 에이전트 기반 공동 설계 환경 개발)

  • 안상준;이수홍
    • Korean Journal of Computational Design and Engineering
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    • v.3 no.1
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    • pp.31-39
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    • 1998
  • This paper deals with a development of the system that implements a collaborative design environment with some intelligent agents on the m. Intelligent agents can design collaboratively trough an interchange of messages in their special domains. Such a collaborative design of agents is achieved on the WWW. In this paper, we propose special agents named intercessor and DCM (Dynamic Connection Manager) and suggest new connection architecture using these agents in the WWW in order to improve the pre-existed agent connection architecture. The proposed agents are developed using Java language and JATLite API. We apply the these agents to the new architecture and show some possibilities that the agent connection architecture can be extended in the WWW Agents interchange messages with others using KOML (Knowledge Query and Manipulation Language), agent communication protocol and language, and deal with message autonomously according to their rule base. Agents register and connect dynamically trough the intercessor agent, and infer from their.

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A Collaborative learning using Wiki for the effectiveness of positive interaction (위키를 활용한 협력학습이 타인과의 긍정적인 상호작용에 미치는 영향 연구)

  • Joo, Yun-Jae;Moon, Gyo-Sik
    • 한국정보교육학회:학술대회논문집
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    • 2011.01a
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    • pp.167-173
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    • 2011
  • Recently, the Web 2.0 bas gained much attention as an advanced form of Web technology. It is well observed that openness, participation, and sharing are the key ideas of Web 2.0 among many desirable characteristics of the technology. Furthermore, Wiki is one of the best representing tools that reflect effectively most of the characteristics of Web 2.0. Wiki is widely used to provide a Web-based communication tool for collaborative writing and editing freely. Therefore, it may be used for collaborative learning so that students can learn how to interact online with each other effectively and also acquire communication skills in an affirmative way. In the paper, we will discuss how students can change their aggresive, offensive, judgemental attitudes to affirmative, aggreable, thoughtful ones by way of exposing them to collaborative learning environment using Wiki as their interactive communication tool.

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Design of Application Sharing System for Collaborative Works in 3D Virtual Environment supporting Multi-Participants (다중 참여자를 지원하는 3차원 가상환경에서 공동작업을 위한 어플리케이션 공유 시스템 설계)

  • Tak, Jin-Hyun;Lee, Sei-Hoon;Wang, Chang-Jong
    • The Transactions of the Korea Information Processing Society
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    • v.7 no.2
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    • pp.355-364
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    • 2000
  • Application sharing for collaborative works make multiple participants to be capable of collaborative developments through sharing development tools and applications which is distributed to various system without spatial restriction. However, applying legacy application sharing to CSCW based virtual environment has a problem because it dont consider 3D space and it disturbs the harmonic interaction of participants. In this study, we designed application sharing system for collaborative works in 3D virtual environment to share application effectively on collaborative virtual environment. The designed application sharing system for collaborative works in 3D virtual environment consist of application sharing manager, group manager and communication manager. This system is able to perceive event of 3D space about application of participant on 3D virtual environment by agent which moves to participant sites and get an ordered events and conflict among participants through scheduling. Therefore, designed application sharing system for collaborative work in 3D virtual environment can support efficient collaborative works and improve reusability of legacy application through using easily legacy application in 3D virtual environment when CSCW application development for virtual environments.

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Entropy-based Similarity Measures for Memory-based Collaborative Filtering

  • Kwon, Hyeong-Joon;Latchman, Haniph
    • International Journal of Internet, Broadcasting and Communication
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    • v.5 no.2
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    • pp.5-10
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    • 2013
  • We proposed a novel similarity measure using weighted difference entropy (WDE) to improve the performance of the CF system. The proposed similarity metric evaluates the entropy with a preference score difference between the common rated items of two users, and normalizes it based on the Gaussian, tanh and sigmoid function. We showed significant improvement of experimental results and environments. These experiments involved changing the number of nearest neighborhoods, and we presented experimental results for two data sets with different characteristics, and results for the quality of recommendation.

협업적 의사소통을 통한 B2C 웹사이트 정보 프라이버시 보호 활동의 성과에 관한 연구: 장기 관계적 성과 관점을 중심으로

  • Lee, Sang-Hun;Lee, Ho-Geun
    • 한국경영정보학회:학술대회논문집
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    • 2008.06a
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    • pp.493-517
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    • 2008
  • The purpose of this research is to identify effect of communication strategy as effectively communication method which is decreasing Internet Web site users' perceived information privacy concerns as important factor affecting to positive behavior or behavioral intentions on long-term relational outcome perspectives. This study suggests alternatives concepts and causal relationship about information privacy issues. First, it addressed collaborative communication strategy (CCS) model of effective communication method for Web site's IPP to users. Second, it provided comparing and integrating streams of information privacy research on long-term relational outcomes perspective. Third, it assessed effectiveness of Web site's IPP on organization legitimacy ensured continuous survival of organization. A research model was proposed and subsequent hypotheses were empirically tested with partial least square (PLS) based on 684 responses from the users of 21 Internet Website among entirely finance, recruit, portal /e-store Web site. It was learned that CCS(as a communication method) and relationship quality(representing long-term relational outcomes)was positively associated with decreasing user's IPC more than privacy risk. Also, legitimacy to information privacy practice positively associated with willingness to information providing more than negative effect of IPC. Lastly, their association strength was partially moderated by the type of real information sensitivity.

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Understanding Collaborative Working Processes within Construction Project Teams Using Agent-Based Modeling and Simulation (에이전트기반 시뮬레이션을 활용한 건설프로젝트 조직 내 협업과정의 이해)

  • Son, JeongWook;Shin, Seung-Woo;Yi, June-Seong
    • Korean Journal of Construction Engineering and Management
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    • v.15 no.1
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    • pp.70-77
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    • 2014
  • Collaborative processes among team members including communication, coordination, and information-handling processes either during pre-construction or project execution are required in order to accomplish the objectives of construction projects. However, current construction management practice does not explicitly take the effect of organizational aspects on project performance into account. This paper introduces a method to understand collaborative processes in an explicit and systematic fashion. An agent-based simulation of collaborative working processes within construction project teams was designed from game theory perspective and implemented. The simulation produced both individual behavior and network dynamics. Individuals represented as agents made efforts to improve performance by communication and coordinating with other members, and overall team network was emerged as a result of interactions among members. Interestingly, it was found that the tendency of forming cohesive subgroups increased when sustaining relations with between-group partners incurs higher cost. The primary contribution of this paper is that it presented an explicit approach to examining collaborative working processes in construction project teams and it extended existing computational organization and network studies by integrating individual behavior models and network models.

Method to Improve Data Sparsity Problem of Collaborative Filtering Using Latent Attribute Preference (잠재적 속성 선호도를 이용한 협업 필터링의 데이터 희소성 문제 개선 방법)

  • Kwon, Hyeong-Joon;Hong, Kwang-Seok
    • Journal of Internet Computing and Services
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    • v.14 no.5
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    • pp.59-67
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    • 2013
  • In this paper, we propose the LAR_CF, latent attribute rating-based collaborative filtering, that is robust to data sparsity problem which is one of traditional problems caused of decreasing rating prediction accuracy. As compared with that existing collaborative filtering method uses a preference rating rated by users as feature vector to calculate similarity between objects, the proposed method improves data sparsity problem using unique attributes of two target objects with existing explicit preference. We consider MovieLens 100k dataset and its item attributes to evaluate the LAR_CF. As a result of artificial data sparsity and full-rating experiments, we confirmed that rating prediction accuracy can be improved rating prediction accuracy in data sparsity condition by the LAR_CF.

A Study pn Development of collaborative Document Authoring system based on DOM (DOM에 기반한 공동 문서 저작 시스템 구현에 관한 연구)

  • Yu, Seong-Ju;Kim, Cha-Jong;Shin, Hyun-Sub
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.12
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    • pp.2601-2608
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    • 2010
  • It is difficult to merge text document and to remake use of documents on the most collaborative document authoring system using text document, and also to provide the storage place for saving and keeping documents. It has vulnerable drawbacks about the security though it provides the accessible abilities due to basing it on Web. In this paper, we design and implementation the collaborative document authoring system for XML document to improve a couple of problems on these systems. For these, we based on the DOM to manipulate the modeling object documents and utilized RMI on this system without considering socket communication when it transmits and receives Java objects. We improved the security through processes of authentication. By providing templates and editing functions such as annotation, visualization of document structures, we made easier making collaborative document authoring more than ever.

Development of Protective Scheme against Collaborative Black Hole Attacks in Mobile Ad hoc Networks

  • Farooq, Muhammad Umar;Wang, Xingfu;Sajjad, Moizza;Qaisar, Sara
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.12 no.3
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    • pp.1330-1347
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    • 2018
  • Mobile Ad hoc Network (MANET) is a collection of nodes or communication devices that wish to communicate without any fixed infrastructure and predetermined organization of available links. The effort has been made by proposing a scheme to overcome the critical security issue in MANET. The insufficiency of security considerations in the design of Ad hoc On-Demand Distance Vector protocol makes it vulnerable to the threats of collaborative black hole attacks, where hacker nodes attack the data packets and drop them instead of forwarding. To secure mobile ad hoc networks from collaborative black hole attacks, we implement our scheme and considered sensor's energy as a key feature with a better packet delivery ratio, less delay time and high throughput. The proposed scheme has offered an improved solution to diminish collaborative black hole attacks with high performance and benchmark results as compared to the existing schemes EDRIAODV and DRIAODV respectively. This paper has shown that throughput and packet delivery ratio increase while the end to end delay decreases as compared to existing schemes. It also reduces the overall energy consumption and network traffic by maintaining accuracy and high detection rate which is more safe and reliable for future work.

Design and Implementation of Real-time Digital Twin in Heterogeneous Robots using OPC UA (OPC UA를 활용한 이기종 로봇의 실시간 디지털 트윈 설계 및 구현)

  • Jeehyeong Kim
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.23 no.4
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    • pp.189-196
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    • 2023
  • As the manufacturing paradigm shifts, various collaborative robots are creating new markets. Demand for collaborative robots is increasing in all industries for the purpose of easy operation, productivity improvement, and replacement of manpower who do simple tasks compared to existing industrial robots. However, accidents frequently occur during work caused by collaborative robots in industrial sites, threatening the safety of workers. In order to construct an industrial site through robots in a human-centered environment, the safety of workers must be guaranteed, and there is a need to develop a collaborative robot guard system that provides reliable communication without the possibility of dispatch. It is necessary to double prevent accidents that occur within the working radius of cobots and reduce the risk of safety accidents through sensors and computer vision. We build a system based on OPC UA, an international protocol for communication with various industrial equipment, and propose a collaborative robot guard system through image analysis using ultrasonic sensors and CNN (Convolution Neural Network). The proposed system evaluates the possibility of robot control in an unsafe situation for a worker.