Research on Online Public Opinion Based on the LDA Model: A Case Study of the Xiaomi SU7 Electric Vehicle Explosion Incident

Jiayin Wang

doi:10.54097/z4kbk251

Authors

Jiayin Wang School of Jounalism, Communication University of China, Beijing, China

DOI:

https://doi.org/10.54097/z4kbk251

Keywords:

online public opinion; LDA model; new energy vehicles; crisis communication.

Abstract

The Xiaomi SU7 explosion incident sparked heated online debates about new energy vehicle (NEV) safety. This study analyzes Weibo comments from March 30–April 14, 2025, using the Latent Dirichlet Allocation (LDA) model. Four major themes emerged: (1) accident process and hardware defects, (2) risks of intelligent driving, (3) human–machine collaboration, and (4) responsibility and brand reputation. Results show skepticism toward Xiaomi’s hardware and intelligent driving systems, as well as disputes over liability. The paper recommends improving hardware safety and intelligent driving reliability, enhancing crisis communication, and strengthening governmental regulatory and accident investigation mechanisms.

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References

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