物联网搜索中主客观融合的动态信誉评估

doi:10.11959/j.issn.1000-436x.2015319

Abstract

Abstract:

Compared with the traditional Internet search,IoT search data center needs a higher data quality.In order to effectively motivate data owners to continuously provide higher quality data,the center needs pay the corresponding rewards to them according to the quality of data (QoD).As a result,QoD and the trustworthy evaluation become a basic problem for the development of IoT search.To address this problem and support data selection of IoT center,a dynamic reputation model was proposed to comprehensively assess the reputation of data owners.In detail,first,an approach to assessing the subjective and objective quality was proposed and mechanism of interactive discount and reputation attenuation was designed.Then,fusing subjective and objective factors,a novel dynamic reputation evaluation scheme was presented.Last,in order to get constraint relation of interaction times,discount,payment price,and data cost,an economic analysis based on signaling game was conducted.Experiment results show that the proposed approach can reflect dynamic change of QoD effectively,and provide the basis for data selection.It also can be adapted to real-time and dynamic of IoT search.

Key words: IoT search, reputation, data quality, subjective and objective factors

Hui-bing ZHANG,Chao LI,Xiao-li HU,Ya ZHOU. Fusing subjective and objective factors:a dynamic approach to evaluating reputation for IoT search[J]. Journal on Communications, 2015, 36(12): 106-113.

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References 15

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项目		高P_HQ	中P_MQ	低P_LQ
		10～14:90%	13～15:80%	13～19:70%
	L
生成测试数据质量区间及其分布		14～15:10%	15～20:20%	12～13:30%
			4～5:80%	5～6:70%
	N	3～5:100%
			5～8:20%	4～5:30%
			6～7:80%	8～9:75%
	P	4～8:100%
			7～11:20%	5～8:25%
实时性rt		0.9～1:90%	0.8～1:80%	0.7～1:25%
实时性rt		0～0.9:10%	0～0.8:20%	0～0.7:75%
完整性ef			0.9～1:80%	0.6～1:30%
		0.9～1:100%
			0～0.9:20%	0～0.6:70%
信誉初始值		1	1	1
标准精度st		(10,3,4)	(13,4,6)	(12,4,5)
声明精度AQ		(12,4,6)	(14,5,7)	(13,4,6)
需求预期de			(15,5,8)

Fusing subjective and objective factors:a dynamic approach to evaluating reputation for IoT search

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