基于广义线性模型的QoE评估方法研究

QoE evaluation method through generalized linear model

基于简化的广义线性模型,建立了QoE等级概率分布回归模型。该模型能够通过网络QoS参数映射得到用户QoE等级累积概率分布。采用最大似然估计完成了对模型参数的估计,并使用皮尔逊方法对模型的拟合优度进行了检验。Web业务的QoE评估实例验证了方法的有效性。

As the evaluation of QoE was an ordinal mulriple categories problem,this paper established the regression model of QoE categories probability distribution based on the GLM.This model related cumulative probabilities of particular QoE categories to QoS parameters of network.Used the MLE and Pearson test to estimate the model parameters and validate the model respectively.Estimated the QoE of Web service utilize the proposed method,and the result proves that the method is effective.