Title :
A Pre-evaluating Set based Bias-tuned Reputation Evaluation Method for Trust Establishment in Grid
Author :
Qu, Xiangli ; Yang, Xuejun ; Gui, Chunmei
Author_Institution :
Sch. of Comput. Sci., Nat. Univ. of Defense Technol., Changsha
Abstract :
For the scale, openness and sharing of grid environment, how to establish a reliable trust relationship between unknown entities more and more challenges grid systems. With wide application in electronic commerce and online communities, reputation mechanism emerges as a promising solution, where a scientific reputation evaluation method is crucial. Yet, most methods currently available do not consider grid´s distinct characteristics such as the sparseness of ratings and strangeness of entities, which are not feasible to grid. In this paper, we propose a pre-evaluating set based method for reputation evaluation in grid. The introduction of the pre-evaluating set is to overcome the sparseness and strangeness mentioned above. With this set, we can effectively tune a rater´s bias to cater to the current evaluator´s criteria and reasonably weight a rater´s rating in aggregation. For bias-tuning, we flexibly turn this into an interpolation problem and conveniently solve it in Matlab. For the final aggregation, we introduce the notion of criteria coherent degree for weight calculation
Keywords :
grid computing; interpolation; set theory; bias-tuned reputation evaluation method; grid environment; interpolation problem; pre-evaluating set; trust establishment; Collaboration; Computer science; Credit cards; Electronic commerce; Humans; Information analysis; Interpolation; Resource management; Scalability; Technology planning;
Conference_Titel :
Networking and Services, 2006. ICNS '06. International conference on
Conference_Location :
Slicon Valley, CA
Print_ISBN :
0-7695-2622-5
DOI :
10.1109/ICNS.2006.11