用户体验质量评估模型及KQI权重计算方法.docx

·开发研究与设计技术·文献标识码：A文章编号：1000—3428(2013)02—0311—06中图分类号：TP391用户体验质量评估模型及KQI权重计算方法金 渝 1，李校林 1,2，李雪松 2(1. 重庆邮电大学通信与信息工程学院，重庆 400065；2. 重庆信科设计有限公司，重庆 400065)摘 要：根据影响用户体验质量(QoE)的技术因素和非技术因素，建立 QoE 评估模型，以较好地呈现用户主观感受和网络因素。利用该模型提出一种关键质量指标(KQI)权重计算方法，应用模糊层次分析法计算 KQI 指标初始权重值，并通过影 响 QoE 的非技术因素动态改变 KQI 指标的权重，使静态 QoE 评估过程动态化、实时化。仿真实验结果表明，该方法能保 证最先假定的技术因素和非技术因素对 QoE 的影响程度各占 50%，较为直观和真实地反映用户感受。 关键词：用户体验质量；技术因素；非技术因素；评估模型；关键质量指标；权重计算方法Quality of Experience Assessment Modeland KQI Weight Calculation MethodJIN Yu1, LI Xiao-lin1,2, LI Xue-song2(1. College of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China; 2. Chongqing Information Technology Designing Co., Ltd., Chongqing 400065, China)【Abstract】According to the technical factors and non-technical factors which influence the Quality of Experience(QoE), thispaper proposes a QoE assessment model, and presents the users’ subjective feelings and network factors through the model. It proposes a new Key Quality Indicator(KQI) indexes’ weight calculation method on the basis of the model. In this algorithm, it uses Fuzzy Analytic Hierarchy Process(FAHP) to calculate the initial KQIs’ weight, changes the KQIs’ weight via the non-technical factors, and makes the static QoE evaluation process be dynamic and real-time. Simulation results demonstrate this method can guarantee that the technical factors and non-technical factors which influence the degree of QoE are side by side with 50%, and can reflect the users most intuitive and true feelings.【Key words】Quality of Experience(QoE); technical factor; non-technical factor; assessment model; Key Quality Indicator(KQI);weight calculation methodDOI: 10.3969/j.issn.1000-3428.2013.02.0641概述随着网络的发展及业务的不断丰富，传统的网络性网络指标数据来进行分析，所采用的指标也都为传统的网络性能指标，没有一套完整反映用户体验到网络质量 的指标体系，也没有一种真正深入用户方分析用户体验 质量的方法。世界电信管理论坛(Tele-management Forum, TMF)提出了用户体验质量主要涉及的 2 个关键指标，即 关键性能指标(Key Performance Indicator, KPI)和关键质 量指标(Key Quality Indicator, KQI)[2]，但是未