The Experts below are selected from a list of 42237 Experts worldwide ranked by ideXlab platform
Mooyoung Jung - One of the best experts on this subject based on the ideXlab platform.
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Virtual Organization for open innovation semantic web based inter Organizational team formation
Expert Systems With Applications, 2011Co-Authors: Mooyoung JungAbstract:Companies and research institutes are always threatened by rapid technological developments and corporate M&A. They are trying to secure a sustainable competitive advantage using outside knowledge and expertise under open innovation to overcome these shortcomings. As a quantitative and systematical method of selecting Virtual team members for open innovation, we present a Virtual team formation model and a prototype to verify its efficiency. The test scenario shows how to form a Virtual team through internal and external human resources when developing a new product.
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modeling and analysis of project performance factors in an extended project oriented Virtual Organization eprovo
Expert Systems With Applications, 2010Co-Authors: Mooyoung JungAbstract:Project performance is significantly affected by the collaboration of project team members and by the levels of their knowledge. While many qualitative and quantitative studies on project performance have been conducted, only few studies have analyzed the effects of knowledge and collaboration. This paper proposes an extended project-oriented Virtual Organization (EProVO) model that consists of a total of 10 factors: 2 time availability factors, 3 cost factors, and 5 capability factors that are useful in evaluating the knowledge competence and collaboration competence of project members. Defining the project performance index that generally assesses project goals - quality, time and budget, and using the data from an actual R&D institute, the effects of 10 factors on project performance were analyzed, and the performance of the project team members was predicted. The predicted project performance of team members helped the decision-making process of the project team manager by providing information required for organizing the team. Furthermore, the coefficient of each factor was useful in figuring out the problems to be encountered in the behavioral styles in terms of knowledge, collaboration, time availability, and cost of running the current Organization. Consequently, directions for Organizational improvement of a research institute could be offered.
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modeling and analysis of project team formation factors in a project oriented Virtual Organization provo
Expert Systems With Applications, 2009Co-Authors: Jungtae Mun, Mooyoung JungAbstract:In this era of rapid changes in the project-oriented R&D Organization's environment, some are actively pursuing joint research to gain a leading edge over other R&D Organizations. The condition for joint research is the knowledge that an Organization needs from other Organizations and the capability of collaboration. This study presents a ProVO model using the concept of Virtual Organization and project team formation based on knowledge and collaboration. In this model, VO is represented by the capability of carrying out a project and the cost of employment. Capability consists of knowledge competence (KC) and collaboration competence (CC). KC, in turn, consists of individual knowledge and collective knowledge from social network, while CC consists of density, degree centrality, and closeness centrality. To verify the presented model, we conducted a case study on a research institute. The analysis results show that all five project team formation factors of KC and CC are statistically significant. A prototype was also developed for selecting project team members using the binary logistics regression model. The proposed ProVO model can assist quantitative decision making on the selection of project team members by a project-oriented R&D Organization from the aspects of knowledge and collaboration.
Hamideh Afsarmanesh - One of the best experts on this subject based on the ideXlab platform.
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trust analysis and assessment in Virtual Organization breeding environments
International Journal of Production Research, 2008Co-Authors: Simon Samwel Msanjila, Hamideh AfsarmaneshAbstract:Establishing trust relationships among the member Organizations in a Virtual Organization breeding environment (VBE) is a pre-condition for their smooth cooperation. Furthermore, considering that effective creation of Virtual Organizations (VOs) is the main aim of the VBEs, the measurement of an Organization's trust level facilitates the selection of partners for configuration and establishment of VOs. While in a small-size VBE e.g. with 20 to 40 members, Organizations may have a good chance to get to know each other, and can therefore have a subjective (opinion-based) judgment of the trust level of others, in medium and large-size VBEs, trust analysis of other Organizations is a main obstacle for VO creation and a big challenge. Design and development of an objective (fact-based) approach for assessing the trust level and establishing trust relationships among Organizations is of particular importance for large and very large VBEs, where usually their member Organizations may not even be totally known to...
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towards a semi typology for Virtual Organization breeding environments
IFAC Proceedings Volumes, 2007Co-Authors: Hamideh Afsarmanesh, Luis M CamarinhamatosAbstract:Abstract The need for collaboration among heterogeneous and autonomous Organizations has manifested in a wide variety of domains and application areas. Many of these cases represent collaboration among Organizations from different disciplines and sectors. Unlike earlier approaches, today both research and practice have concluded that the most efficient manner to dynamically create VOs, is through the pre-existence of long term strategic alliances of Organizations that act as the breeding environment for VOs. Virtual Organization Breeding Environments (VBEs) are strategic alliances that provide necessary conditions and supporting mechanisms for fluid cost/time effective brokerage of VOs. This paper identifies the main distinguishing characteristics of the VBEs, and addresses the challenges involved in defining a VBE typology.
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a framework for Virtual Organization creation in a breeding environment
Annual Reviews in Control, 2007Co-Authors: Luis M Camarinhamatos, Hamideh AfsarmaneshAbstract:Abstract Effectiveness in the process of creating Virtual Organizations (VO) is an important pre-condition for having a truly dynamic VOs, in response to collaboration opportunities in fast changing market contexts. A realistic approach to materialize agility in VO creation is defined under the assumption of a VO Breeding Environment (VBE), that guarantees the preparedness of its members to quickly get engaged in collaboration processes. After a survey of past approaches and a characterization of the VBE concept, a discussion of the process and suggested functionalities towards a VO creation framework are presented in this context. Finally a list of supporting tools is described and future research challenges are pointed out.
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competency and profiling management in Virtual Organization breeding environments
Working Conference on Virtual Enterprises, 2006Co-Authors: Ekaterina Ermilova, Hamideh AfsarmaneshAbstract:A main characteristic of a Virtual Organization Breeding Environment (VBE) is the set of competencies that it can offer to the market and society. The VBE competencies are defined in this paper through the competencies of three main VBE information components, such as the VBE member, the Virtual Organization (VO) formed in the VBE, and the VBE itself. Typically competencies appear as a part of the VBE members’ profiles. VO’s competencies need to be obtained through the VOs’ profiles, during the operating stage of the VBE. The competencies of the VBE itself need to be carefully defined at each VBE and are contained in the VBE profile. These three kinds of profiles are addressed in this paper. The management of profiles and competencies within a VBE shall be supported by a special subsystem of the VBE Management System (VMS) - Profiling and Competency Management System (PCMS) specified in this paper.
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a framework for management of Virtual Organization breeding environments
Working Conference on Virtual Enterprises, 2005Co-Authors: Hamideh Afsarmanesh, Luis M CamarinhamatosAbstract:Effective creation of dynamic Virtual Organizations requires a proper breeding environment to increase Organizations’ preparedness. After introducing some basic concepts related to collaborative networked Organizations, the concept of breeding environment for Virtual Organizations is discussed and the key elements and requirements for its support management system are presented. The initial modeling needs and the required functionality are identified. Finally some important open challenges are addressed.
Sebastien Goasguen - One of the best experts on this subject based on the ideXlab platform.
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Virtual Organization clusters self provisioned clouds on the grid
Future Generation Computer Systems, 2010Co-Authors: Michael A Murphy, Sebastien GoasguenAbstract:Virtual Organization Clusters (VOCs) are a novel mechanism for overlaying dedicated private cluster systems on existing grid infrastructures. VOCs provide customized, homogeneous execution environments on a per-Virtual Organization basis, without the cost of physical cluster construction or the overhead of per-job containers. Administrative access and overlay network capabilities are granted to Virtual Organizations (VOs) that choose to implement VOC technology, while the system remains completely transparent to end users and non-participating VOs. Unlike existing systems that require explicit leases, VOCs are autonomically self-provisioned and self-managed according to configurable usage policies. The work presented here contains two parts: a technology-agnostic formal model that describes the properties of VOCs and a prototype implementation of a physical cluster with hosted VOCs, based on the Kernel-based Virtual Machine (KVM) hypervisor. Test results demonstrate the feasibility of VOCs for use with high-throughput grid computing jobs. With the addition of a ''watchdog'' daemon for monitoring scheduler queues and adjusting VOC size, the results also demonstrate that cloud computing environments can be autonomically self-provisioned in response to changing workload conditions.
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dynamic provisioning of Virtual Organization clusters
Cluster Computing and the Grid, 2009Co-Authors: Michael A Murphy, Brandon Kagey, Michael Fenn, Sebastien GoasguenAbstract:Virtual Organization Clusters are systems comprised of Virtual machines that provide dedicated computing clusters for each individual Virtual Organization. The design of these clusters allows individual Virtual machines to be independent of the underlying physical hardware, potentially allowing Virtual clusters to span multiple grid sites. A major challenge in using Virtual Organization Clusters as a grid computing abstraction arises from the need to schedule and provision physical resources to run the Virtual machines.This paper describes a Virtual cluster scheduler implementation based on the Condor High Throughput Computing system. By means of real-time monitoring of the Condor job queue, Virtual machines that belong to individual Virtual Organizations are provisioned and booted. Jobs belonging to each Virtual Organization are then run on the Organization-specific Virtual machines, which form a cluster dedicated to the specific Organization. Once the queued jobs have executed, the Virtual machines are terminated, thereby allowing the physical resources to be re-claimed. Tests of this system were conducted using synthetic workloads, demonstrating that dynamic provisioning of Virtual machines preserves system throughput for all but the shortest-running of grid jobs, without undue increase in scheduling latency.
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Virtual Organization clusters
Parallel Distributed and Network-Based Processing, 2009Co-Authors: Michael A Murphy, Michael Fenn, Sebastien GoasguenAbstract:Sharing traditional clusters based on multiprogramming systems among different Virtual Organizations (VOs) can lead to complex situations resulting from the differing software requirements of each VO. This complexity could be eliminated if each cluster computing system supported only a single VO, thereby permitting the VO to customize the operating system and software selection available on its private cluster. While dedicating entire physical clusters on the Grid to single VOs is not practical in terms of cost and scale, an equivalent separation of VOs may be accomplished by deploying clusters of Virtual Machines (VMs) in a manner that gives each VO its own Virtual cluster. Such Virtual Organization Clusters (VOCs) can have numerous bene?ts, including isolation of VOs from one another, independence of each VOC from the underlying hardware, allocation of physical resources on a per-VO basis, and clear separation of administrative responsibilities between the physical fabric provider and the VO itself.Initial results of implementing a complete system utilizing the proposed Virtual Organization Cluster Model con?rm the administrative simplicity of isolating VO software from the physical system. End-user computational jobs submitted through the Grid are executed only on the Virtual cluster supporting the respective VO, and each VO has substantial administrative ?exibility in terms of software choice and system con?guration. Performance tests using the Kernel-based Virtual Machine (KVM) hypervisor indicated a Virtualization overhead of under 10% for latency-tolerant scienti?c applications, such as those that would be submitted to a standard or vanilla Condor universe. Latency-sensitive applications, such as MPI, experience substantial performance degradation with Virtualization overheads on the order of 60%. These results suggest that VOCs are suitable for High-Throughput Computing (HTC) applications, where real-time network performance is not critical. VOCs might also be useful for High-Performance Computing (HPC) applications if Virtual network performance can be sufficiently improved.
Luis M Camarinhamatos - One of the best experts on this subject based on the ideXlab platform.
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towards a semi typology for Virtual Organization breeding environments
IFAC Proceedings Volumes, 2007Co-Authors: Hamideh Afsarmanesh, Luis M CamarinhamatosAbstract:Abstract The need for collaboration among heterogeneous and autonomous Organizations has manifested in a wide variety of domains and application areas. Many of these cases represent collaboration among Organizations from different disciplines and sectors. Unlike earlier approaches, today both research and practice have concluded that the most efficient manner to dynamically create VOs, is through the pre-existence of long term strategic alliances of Organizations that act as the breeding environment for VOs. Virtual Organization Breeding Environments (VBEs) are strategic alliances that provide necessary conditions and supporting mechanisms for fluid cost/time effective brokerage of VOs. This paper identifies the main distinguishing characteristics of the VBEs, and addresses the challenges involved in defining a VBE typology.
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a framework for Virtual Organization creation in a breeding environment
Annual Reviews in Control, 2007Co-Authors: Luis M Camarinhamatos, Hamideh AfsarmaneshAbstract:Abstract Effectiveness in the process of creating Virtual Organizations (VO) is an important pre-condition for having a truly dynamic VOs, in response to collaboration opportunities in fast changing market contexts. A realistic approach to materialize agility in VO creation is defined under the assumption of a VO Breeding Environment (VBE), that guarantees the preparedness of its members to quickly get engaged in collaboration processes. After a survey of past approaches and a characterization of the VBE concept, a discussion of the process and suggested functionalities towards a VO creation framework are presented in this context. Finally a list of supporting tools is described and future research challenges are pointed out.
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a framework for management of Virtual Organization breeding environments
Working Conference on Virtual Enterprises, 2005Co-Authors: Hamideh Afsarmanesh, Luis M CamarinhamatosAbstract:Effective creation of dynamic Virtual Organizations requires a proper breeding environment to increase Organizations’ preparedness. After introducing some basic concepts related to collaborative networked Organizations, the concept of breeding environment for Virtual Organizations is discussed and the key elements and requirements for its support management system are presented. The initial modeling needs and the required functionality are identified. Finally some important open challenges are addressed.
Sergio Miranda - One of the best experts on this subject based on the ideXlab platform.
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design patterns for secure Virtual Organization management architecture
International Workshop on Security, 2007Co-Authors: Angelo Gaeta, Matteo Gaeta, Alan Smith, Ivan Djordjevic, Theo Dimitrakos, Maurizio Colombo, Sergio MirandaAbstract:The work presented in this paper describes an architecture for a secure Virtual Organization Management framework. This work is taking place in the BEinGRID EU project, which aims to advance the take up of Grid technologies in the business domain by conducting a number of business experiments and in parallel producing a number of components.
