Research On Auto Consumers’ Perceived Quality Based On LDA Model

Nowadays,online text reviews on the Internet are accumulating in large numbers.These online text data,which represents the perceived quality of consumers,are an important channel for product or service providers to receive consumer feedback and mining customer preferences,and are also essential reference information for consumers to understand a product or service.Online reviews exist as unstructured text.How to extract quality dimension features from them? How to measure the labels,importance,and evolutionary trends behind these quality dimension features? What is the difference in consumer perceived quality between different brand products? And how do the relevant attributes of product providers and consumers affect consumers’ perception of these dimensions? These issues have important implications for product or service providers or consumers.In order to explore the perceived quality of automotive consumers,this thesis first reviews related research and proposes to focus on the factors affecting consumer satisfaction and dissatisfaction based on the two-factor theory.The Latent Dirichlet Allocation(LDA)is used to extract the topics of positive and negative comments from automotive consumer online text reviews,and the labels and weights of each topic are determined.Then the corresponding strategic analysis is made based on the model results,such as the analysis of perceived quality under automobile brands and analysis of influencing factors on perception dimensions of automobile consumers.The analysis of perceived quality under automobile brands mainly includes brand image,brand positioning,and brand quality dimension evolution.The analysis of influencing factors on consumer perception dimension mainly uses multiple regression methods to explore the impact of three variables related to product providers and consumers,such as car prices,car brands and vehicle mileage,on consumer perception dimensions.The results of the study found the factors affecting the satisfaction and dissatisfaction of automobile consumers under the overall level and automobile brands,their weights and evolution characteristics,and showed that the above three variables have significant effects on most dimensions of consumers’ s perceived quality.This article studies the factors that affect the perceived quality of aut omotive consumers,and provides perspectives for automakers and sellers to better understand consumers.