• Title, Summary, Keyword: 네트워크 배태성

Search Result 12, Processing Time 0.049 seconds

A Study on the Effect of Network Embeddedness on Collaboration and Performance in the Project Supply Chain : Focusing on Second-tier Suppliers (프로젝트 공급망에서 네트워크 배태성이 협업과 기업성과에 미치는 영향연구 : 2차 협력업체를 중심으로)

  • Park, Seong Taek;Rhe, MoonKi Kyle;Ryu, Seonjeong
    • Journal of Digital Convergence
    • /
    • v.12 no.6
    • /
    • pp.93-103
    • /
    • 2014
  • The rapid trends toward outsourcing have created more complex and fragmented multi-tier supply chains for Engineering, Procurement & Construction(EPC) industry. Working with suppliers and sub-suppliers requires continuous integration activities during project execution. The purpose of this study is to identify the factors influencing the performances and relationship satisfaction of second-tier suppliers participating in the project-based supply chain. This study proposes the network embeddedness, collaboration, information-sharing and flexibility as antecedents variables, and collected the survey responses from the second-tier suppliers having experiences with complex projects. The statistical results indicate that the collaboration with supply chain leading firm and first-tier supplier has significant impact on the performances and relationship satisfaction of second-tier suppliers. It was also found that the information-sharing and flexibility influence the network embeddedness as well as collaboration, and that the embeddedness have significant impact on the collaboration.

A Study on Relations Between Trust in e-Government and Trust in Government - Focused on the Factors of Truster and Trustee - (전자정부 신뢰와 정부신뢰의 영향관계에 관한 연구 - 신뢰주체 및 신뢰대상 요인을 중심으로 -)

  • Lee, Sun Joong
    • Informatization Policy
    • /
    • v.18 no.2
    • /
    • pp.49-71
    • /
    • 2011
  • This study aims at finding what factors influence trust in e-government and how trust in e-government and satisfaction with e-government services affect trust in government. Despite of the importance of trust in e-government, there has not been sufficient research. Giving light on the factors of affecting trust in e-government is of academic significance. Therefore, the purpose of this study is to explore the nature, driving forces and consequences of citizens'trust in e-government and in government. The empirical results indicated that temporal embeddedness, network embeddedness, information provision quality, information security quality and e-participation quality affect satisfaction with e-government services and trust in e-government. Also, satisfaction with e-government services and trust in e-government influence trust in government, and satisfaction with e-government services affect trust in e-government.

  • PDF

Project-based Organization, Embeddedness and Spatial Clustering in the TV Drama Industry (프로젝트 기반 조직의 배태성과 공간적 군집화에 대한 시론적 연구 -드라마 산업을 사례로-)

  • Hwang, Eun-Jung;Lee, Hee-Yeon
    • Journal of the Economic Geographical Society of Korea
    • /
    • v.11 no.3
    • /
    • pp.442-458
    • /
    • 2008
  • This paper aims to examine the ways in which project-based organizations (PBOs) are embedded in social networks and geographical clustering in the case of TV drama industry. PBOs refer to a variety of temporary organizational forms for the performance of tasks as to integrate diverse and specialized intellectual resources. PEOs as a flexible and innovative mode of organizing knowledge resources are becoming increasingly worthy of attention in emerging the creative economy. Evidence from interviews with core persons of PEOs like producers, directors, and writers reveals that the key operational mechanism of the project form of organization is based on the highly socialized networks via individual's reputation and past experiences. In other words, the project activity in TV drama is embedded in networks which are socially constructed. Also the geographical clustering plays an important role in PBOs and project practices in TV drama are constructed around a high degree of spatial clustering. PBOs are clustering in Kang-nam and Yeouido, where are located in independent production companies and broadcasting stations. It means that the project formation in TV drama requires geographically-clustered networks of human resources, and socially, culturally and geographically embedded latent networks of interpersonal relationships are a necessary condition of POBs in the TV drama industry.

  • PDF

Query Processing of Uncertainty Position using Road Networks (도로 네트워크를 이용한 불확실 위치데이터의 질의 처리)

  • 배태욱;안경환;홍봉희
    • Proceedings of the Korean Information Science Society Conference
    • /
    • /
    • pp.88-90
    • /
    • 2004
  • 대표적인 현재 및 미래 위치 색인인 TPR-Tree는 이동 객체의 위치 좌표와 속도 벡터 정보를 이용하여 시간에 대해 선형적으로 이동 객체의 현재 및 미래 위치를 예측한다. 그러나 이동 객체의 이동 방향 및 속도가 특정한 임계값을 벗어날 경우에는 서버로 새로운 위치 보고를 수행하기 때문에, 차량과 같이 이동 방향과 속도가 빈번하게 변하는 환경에 적용할 경우 서버로 잦은 보고를 필요로 하게 되어 통신비용을 크게 증가시키는 문제가 있다. 통신비용을 일정하게 유지하기 위한 방법으로 이동 객체의 보고를 일정한 시간 간격으로 수행하게 하는 방법이 있다. 그러나 일정한 시간 간격으로 이동 객체의 위치 보고가 수행되는 환경에서는 보고간격 사이에 속도와 방향이 변하게 되면 시간에 대해 선형적인 위치 예측 시에 오차가 발생할 수 있다. 본 논문에서는 일정한 시간 간격으로 이동 객체의 위치 보고가 수행되는 환경에서 보고 간격 사이에 이동객체의 이동 속도와 방향의 변화에 대한 불확실성을 반영하기 위하여 도로 네트워크를 이용한 이동 객체의 불확실 위치데이터의 질의 처리 기법을 제시한다.

  • PDF

The Optimized Integration of Single-baseline GPS Solutions for Network-based Kinematic Positioning (네트워크 기반 키너매틱 위치결정을 위한 단일기선 GPS해의 최적 결합)

  • Choi, Yun-Soo;Bae, Tae-Suk;Lee, Jong-Ki;Kwon, Jay-Hyoun
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
    • /
    • v.25 no.3
    • /
    • pp.207-213
    • /
    • 2007
  • For several years, although the demand of high accuracy kinematic positing using multiple bases has been increased, most of the commercial GPS processing softwares can provide the single-baseline solutions only. Thus, we studied the methods to improve the accuracy of the kinematic positioning using the network configuration based on the several single-baseline solutions. As discussed in this study, the positioning accuracy as well as the network stability is improved by introducing the geodetic network adjustment theories into the kinematic positioning application. Three different methods to remove the rank-deficiency, RLESS, BLIMPBE and SCLESS, are analyzed in this study. The 3D RMS error has been improved from 3.5cm(max) to 2.1cm using the network-based kinematic positioning, and it is desired to choose BLIMPBE and SCLESS depending on the accuracy of the base stations.

A Correlation between the Centrality of the Hyperlinks and the Number of Visits in the Homepages of the University (대학 홈페이지 하이퍼링크 중심도와 방문자수 관계 분석)

  • Kwon, Hyejung;Jeon, Mihyun;Bae, Tae-Woong;Kim, Gyu-Tae
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • /
    • pp.399-402
    • /
    • 2017
  • 대학 내 기관별 웹페이지의 방문자 패턴을 분류하고, 하이퍼링크에 따른 네트워크 분석을 통해 방문자수와의 연관성을 연구하였다. 웹페이지 언어에 따라 영문 홈페이지는 공통적으로 낮은 방문 패턴을 보였으며, 단과대학이 개별 학과에 비해 높은 방문자수를 보였다. 웹페이지 하이퍼링크의 중심도(Centrality) 분석에서는 사이중심도(Betweenness centrality)를 정도(degree)로 정규화한 값이 방문자 수의 상한 값에 대응되는 현상이 발견되었다. 홍보효과를 위해 홈페이지 내용, 구조 설계뿐만 아니라 웹 상에 적절한 노출 전략도 도움이 됨을 알 수 있었다.

Stability Assessment of FKP System by NGII using Long-term Analysis of NTRIP Correction Signal (NTRIP 보정신호 분석을 통한 국토지리정보원 FKP NRTK 시스템 안정성 평가)

  • Kim, Min-Ho;Bae, Tae-Suk
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
    • /
    • v.31 no.4
    • /
    • pp.321-329
    • /
    • 2013
  • Despite the advantage of unlimited access, there are insufficient studies for the accuracy and stability of FKP that blocks the spread of the system for various applications. Therefore, we performed a long-term analysis from continuous real-time positioning, and investigated the error characteristics dependent on the size and the surrounding environment. The FKP shows significant changes in the positioning accuracy at different times of day, where the accuracy during daytime is worse than that of nighttime. In addition, the size and deviation of FKP correction may change with the ionospheric conditions, and high correlation between ambiguity resolution rate and the deviation of correction was observed. The receivers continuously request the correction information in order to cope with sudden variability of ionosphere. On the other hand, the correction information was not received up to an hour in case of stable ionospheric condition. It is noteworthy that the outliers of FKP are clustered in their position with some biases. Since several meters of errors can be occurred for kinematic positioning with FKP, therefore, it is necessary to make appropriate preparation for real-time applications.

Query Processing of Uncertainty Position Using Road Networks for Moving Object Databases (이동체 데이타베이스에서 도로 네트워크를 이용한 불확실 위치데이타의 질의처리)

  • Ahn Sung-Woo;An Kyung-Hwan;Bae Tae-Wook;Hong Bong-Hee
    • Journal of KIISE:Databases
    • /
    • v.33 no.3
    • /
    • pp.283-298
    • /
    • 2006
  • The TPR-tree is the time-parameterized indexing scheme that supports the querying of the current and projected future positions of such moving objects by representing the locations of the objects with their coordinates and velocity vectors. If this index is, however, used in environments that directions and velocities of moving objects, such as vehicles, are very often changed, it increases the communication cost between the server and moving objects because moving objects report their position to the server frequently when the direction and the velocity exceed a threshold value. To preserve the communication cost regularly, there can be used a manner that moving objects report their position to the server periodically. However, the periodical position report also has a problem that lineal time functions of the TPR-tree do not guarantee the accuracy of the object's positions if moving objects change their direction and velocity between position reports. To solve this problem, we propose the query processing scheme and the data structure using road networks for predicting uncertainty positions of moving objects, which is reported to the server periodically. To reduce an uncertainty of the query region, the proposed scheme restricts moving directions of the object to directions of road network's segments. To remove an uncertainty of changing the velocity of objects, it puts a maximum speed of road network segments. Experimental results show that the proposed scheme improves the accuracy for predicting positions of moving objects than other schemes based on the TPR-tree.

Dynamic Full-Scalability-Conversion in SVC (스케일러블 비디오 코딩에서의 실시간 스케일러빌리티 변환)

  • Lee, Dong-Su;Bae, Tae-Meon;Ro, Yong-Man
    • Journal of the Institute of Electronics Engineers of Korea CI
    • /
    • v.43 no.6
    • /
    • pp.60-70
    • /
    • 2006
  • Currently, Scalable Video Coding (SVC) is being standardized. By using scalability of SVC, QoS managed video streaming service is enabled in heterogeneous networks even with only one original bitstream. But current SVC is insufficient to dynamic video conversion for the scalability, thereby the adaptation of bitrate to meet a fluctuating network condition is limited. In this paper, we propose dynamic full-scalability conversion method for QoS adaptive video streaming in H.264/AVC SVC. To accomplish full scalability dynamic conversion, we propose corresponding bitstream extraction, encoding and decoding schemes. On the encoder, we newly insert the IDR NAL to solve the problems of spatial scalability conversion. On the extractor, we analyze the SVC bitstream to get the information which enable dynamic extraction. By using this information, real time extraction is achieved. Finally, we develop the decoder so that it can manage changing bitrate to support real time full-scalability. The experimental results showed that dynamic full-scalability conversion was verified and it was necessary for time varying network condition.

The International Learning of a Korean IT Venture Firm : A Case Study of UniData Communication Systems (한국 IT 벤처기업의 국제화 학습: 유니데이타커뮤니케이션(주) 사례)

  • Park, Sang-Gyu;Moon, Hwy-Chang
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
    • /
    • v.7 no.1
    • /
    • pp.73-86
    • /
    • 2012
  • This paper explains the contribution of international learning to the business performance through strengthening the international learning capability of the organization. This is consistent with the previous literature that the organization's international experience is an important determinant of the international performance and the learning capability, strengthened through organizational learning, contributes to the business performance. In addition, this paper analyzes the characteristics of international learning of a venture business, which has actively pursued internationalization, by categorizing exploitation and exploration. An important result is that the small-sized venture firm, which is weak in internal resources compared with large firms, utilizes partner network more actively to accumulate international experience by exploration. We can then confirm that this international experience strengthens learning capability and gives positive effects on the business performance.

  • PDF