Towards Evaluation of Peer-to-Peer-Based Distributed Knowledge Management Systems

Author(s):  
Marc Ehrig ◽  
Christoph Schmitz ◽  
Steffen Staab ◽  
Julien Tane ◽  
Christoph Tempich
2016 ◽  
Vol 14 (1) ◽  
pp. 46-60
Author(s):  
O. O. BAMGBOYE ◽  
O. FOLORUNSO ◽  
A. T. AKINWALE ◽  
G. A. ADEBAYO

Distributed Knowledge Management Systems (DKMS) often depends on the Semantic Web Peer-to-Peer (SW-P2P) model. The reason for this is based on its support for autonomy of knowledge node, ease of accessibility and scalability. The susceptibility to failure experienced during knowledge retrieval has been a concern for the SW-P2P.ª¤? This paper presents a fault tolerance system in order to resolve the problem of the DKM. The architecture of this design consists of five components namely; Replication Manager (RM), Fault Detector (FD), Fault Notifier (FN), Recovery Mechanism (RMe) and Global Control Monitor (GCM). This design adopted dynamic replication strategy and group constitution procedure to guarantee knowledge availability on knowledge nodes. The dynamic replication strategy was used to create and delete replicas based on the changes in the DKMS environment. The group constitution procedure suggested the efficiency of fault recovery process in terms of the best available replica among knowledge service group. The fault tolerance system execution cycle was performed on a set of Virtual Machines (VM) using the VMware Workstation version 7.0.1, while Java programming language was used to implement the group and ungroup replicas. Sample dataª¤? of varying magnitude in ranges of 225Kilobytes to 512Kilobytes and 450Kilobytes to 512Megabytes were tested at different time intervals on both the grouped and ungrouped replicas at a threshold between 0.85 and 0.9 of knowledge retrieval. The results showed a reduction in the average response time of the grouped replicas which was measured to be 34 milliseconds and 68.2 milliseconds against ungrouped replica that was estimated as 53 milliseconds and 107.2 milliseconds respectively. The effect of this reduction in response time was that the grouped replica was faster than the approach of ungroup replica. In addition, the group replica occupied less memory space because it does not need to store replicas on the active knowledge peer when recovering from failure. This result showed that the system guarantees the fault tolerance of each knowledge node in a DKMS.ª¤?


MIS Quarterly ◽  
2013 ◽  
Vol 37 (1) ◽  
pp. 299-313 ◽  
Author(s):  
Yinglei Wang ◽  
◽  
Darren B. Meister ◽  
Peter H. Gray ◽  
◽  
...  

2017 ◽  
Vol 47 (2) ◽  
pp. 250-264 ◽  
Author(s):  
Chulatep Senivongse ◽  
Alex Bennet ◽  
Stefania Mariano

Purpose The purpose of this paper is to demonstrate the value of using a systematic literature review to develop an integrated framework for information and knowledge management systems. Design/methodology/approach First, the systematic literature review method is introduced, differentiating it from traditional literature reviews in terms of value-added and limitations. Second, this methodology is used in a research application focused on absorptive capacity internal capabilities with regard to the processes of acquisition, assimilation, transformation and exploitation. Third, an integrated framework for information and knowledge management systems is developed from this application. Findings The systematic literature review approach provides a rigor that can assist in reducing researcher bias while simultaneously enabling the definition of a precise scope of review, with a clear explanation of selection criteria with the objective to find and review all the studies that are relevant to the search definitions. As a research method, it effectively supports a qualitative, quantitative or mixed methodology. Research limitations/implications This methodology was applied to one specific area of research. Specific limitations include the availability of articles in subscribed databases and the analytical capabilities of the tools used for text mining and analytics. Originality/value This paper demonstrates the usefulness of the systematic literature review methodology in developing an integrated framework for analysis.


2008 ◽  
Vol 22 (2) ◽  
pp. 77-101 ◽  
Author(s):  
Holli McCall ◽  
Vicky Arnold ◽  
Steve G. Sutton

ABSTRACT: In an era where knowledge is increasingly seen as an organization's most valuable asset, many firms have implemented knowledge-management systems (KMS) in an effort to capture, store, and disseminate knowledge across the firm. Concerns have been raised, however, about the potential dependency of users on KMS and the related potential for decreases in knowledge acquisition and expertise development (Cole 1998; Alavi and Leidner 2001b; O'Leary 2002a). The purpose of this study, which is exploratory in nature, is to investigate whether using KMS embedded with explicit knowledge impacts novice decision makers' judgment performance and knowledge acquisition differently than using traditional reference materials (e.g., manuals, textbooks) to research and solve a problem. An experimental methodology is used to study the relative performance and explicit knowledge acquisition of 188 participants partitioned into two groups using either a KMS or traditional reference materials in problem solving. The study finds that KMS users outperform users of traditional reference materials when they have access to their respective systems/materials, but the users of traditional reference materials outperform KMS users when respective systems/materials are removed. While all users improve interpretive problem solving and encoding of definitions and rules, there are significant differences in knowledge acquisition between the two groups.


2015 ◽  
Vol 13 (3) ◽  
pp. 272-280 ◽  
Author(s):  
Che-Hung Lin ◽  
Fu-Sheng Tsai ◽  
David D C Tarn ◽  
Shu-Chuan Hsu

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