@inproceedings{sanjurjo-gonzalez-2026-diachronic,
    title = "A Diachronic Comparable Corpus of {S}panish Digital News (2017{--}2026) for the Study of Stylistic Convergence in the {G}en{AI} Era",
    author = "Sanjurjo-Gonz{\'a}lez, Hugo",
    editor = "Rapp, Reinhard  and
      Terryn, Ayla Rigouts  and
      Sharoff, Serge  and
      Zweigenbaum, Pierre",
    booktitle = "Proceedings of the 19th Workshop on Building and Using Comparable Corpora ({BUCC})",
    month = may,
    year = "2026",
    address = "Palma de Mallorca, Spain",
    publisher = "ELRA Language Resources Association (ELRA)",
    url = "https://preview.aclanthology.org/backfill-openreview/2026.bucc-1.7/",
    doi = "10.63317/5n7czevx4vhk",
    pages = "53--61",
    abstract = "This study introduces a comparable corpus of Spanish digital news (2017{--}2026) designed to analyze potential linguistic shifts coinciding with the widespread adoption of Generative AI. We propose an analytical framework structured across three levels: lexical statistics, semantic topology, and neural classification. By implementing a protocol of NER-masking, we isolate structural discourse markers from topical content to identify the stylistic patterns of the contemporary period. Our results suggest a measurable structural shift within the analyzed corpus, indicating a trend toward a more standardized professional register. While macro-statistical metrics like Shannon entropy remain stable {---}indicating statistical consistency{---} Zipf-Mandelbrot distributions and SVD mapping reveal a concentration of unique vocabulary into more predictable clusters. In this scenario, the 2023{--}2026 subcorpus exhibits a discernible topological displacement compared to the 2017{--}2021 baseline. The study identifies a `Gray Zone' where highly structured technical reporting and hybridized production become indistinguishable, suggesting a structural stylistic convergence within this digital environment. These findings provide a methodological baseline for analyzing discursive stabilization in professional domains without assuming definitive authorship."
}