Security and Privacy Taxonomy Generation from Mobile App Reviews
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Computer Science > Computation and Language
Title:Security and Privacy Taxonomy Generation from Mobile App Reviews
Abstract:Mobile app reviews are a rich, continuously renewing source of how users experience privacy and security, yet existing taxonomies of these concerns are hand-crafted and cannot keep pace with the evolving nature of the data. Automating taxonomy construction is the natural response, but scalability is the core challenge: current LLM- and clustering-based methods are developed for scientific corpora of a few thousand documents and do not extend to app review collections numbering in the hundreds of thousands. We address this gap in two ways. First, we filter app reviews for privacy- and security-related content, yielding a comprehensive corpus of over 600K reviews. Second, we introduce TaxoScale, a pipeline that handles taxonomy construction at this scale by extending an expert-defined taxonomy via Recursive Hierarchical Clustering and LLM-based node naming. TaxoScale outperforms strong automatic-taxonomy baselines on path, level, coverage, and novelty metrics, and discovers novel branches absent from prior taxonomies.
| Subjects: | Computation and Language (cs.CL) |
| Cite as: | arXiv:2608.09049 [cs.CL] |
| (or arXiv:2608.09049v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2608.09049
arXiv-issued DOI via DataCite (pending registration)
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