【摘要】：目前,可信問題成為阻礙Web服務(wù)發(fā)展的一項(xiàng)重要瓶頸。本文結(jié)合國(guó)內(nèi)外專家、學(xué)者對(duì)于可信的研究,歸納總結(jié)可信、可信的Web等相關(guān)概念,提出基于用戶反饋度量研究Web服務(wù)可信性的重要性,構(gòu)建更具有效化的用戶反饋度量模型,并通過仿真實(shí)驗(yàn)對(duì)本文所構(gòu)建的基于多影響因子的Web服務(wù)可信性的用戶反饋度量模型進(jìn)行驗(yàn)證,主要研究成果為：首先,分析指出基于Web服務(wù)可信性的用戶反饋度量研究具有重要的現(xiàn)實(shí)意義。對(duì)現(xiàn)有的相關(guān)度量模型進(jìn)行有效性分析,指出這些模型都不能夠激勵(lì)服務(wù)提供者持續(xù)保持誠(chéng)信交易。接著,本文依據(jù)動(dòng)態(tài)規(guī)劃理論,通過數(shù)學(xué)公式推導(dǎo)對(duì)服務(wù)評(píng)價(jià)者的可信度、服務(wù)交易時(shí)間還有服務(wù)交易價(jià)值這些因子的有效性進(jìn)行分析,指出當(dāng)這些影響因子在滿足一定條件時(shí),可以激勵(lì)服務(wù)提供者持續(xù)保持誠(chéng)信交易。隨后,本文構(gòu)建了考慮多因子影響的基于Web服務(wù)可信性的用戶反饋度量模型,并且在模型中引入懲罰因子,增加對(duì)于惡意服務(wù)提供者的懲罰力度。最后,通過仿真實(shí)驗(yàn)驗(yàn)證本文所提出的度量模型在度量的結(jié)果方面更具客觀化和有效性。本文的研究有助于降低Web服務(wù)交易雙方的信息不對(duì)稱性,提高服務(wù)提供者惡意行為的成本,減少Web服務(wù)交易的風(fēng)險(xiǎn)性,促使Web服務(wù)健康發(fā)展。
[Abstract]:At present, the problem of trustworthiness has become an important bottleneck that hinders the development of Web services. In this paper, based on the domestic and foreign experts and scholars, we summarize the related concepts of trusted and trusted Web, propose the importance of researching the credibility of Web services based on user feedback metrics, and construct a more effective user feedback metric model. The user feedback metric model of Web service credibility based on multi-influence factors is verified by simulation experiment. The main research results are as follows: firstly, It is pointed out that the research of user feedback metrics based on Web service credibility is of great practical significance. This paper analyzes the validity of the existing measurement models and points out that these models can not encourage service providers to keep on trading in good faith. Then, according to the dynamic programming theory, this paper analyzes the validity of the reliability, service transaction time and service transaction value of service evaluators by mathematical formula. It is pointed out that when these influencing factors meet certain conditions, service providers can be encouraged to keep good faith transactions. Then this paper constructs a user feedback metric model based on Web service credibility considering the influence of multiple factors and introduces a penalty factor to increase the penalty for malicious service providers. Finally, the simulation results show that the proposed metric model is more objective and effective. The research in this paper is helpful to reduce the asymmetry of information between the two parties of Web service transaction, to increase the cost of malicious behavior of service provider, to reduce the risk of Web service transaction, and to promote the healthy development of Web service.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP393.09

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