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11 mai 2021
- doi: 10.4000/books.aaccademia.7618
- eisbn: 9791280136329
https://creativecommons.org/licenses/by-nc-nd/4.0/ , info:eu-repo/semantics/openAccess
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EVALITA COVID-19 Infodemic linguistica computazionale Automatic Misogyny Identification Misogyny on Twitter Posts AlBERTo Convolutional Neural Network BERT Model Hate Speech Detection Multimodal Meme Detection MEME management Language Game ``La Ghigliottina'' Language & Linguistics LAN000000 CBXSujets proches
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Benyou Wang et al., « University of Padova @ DIACR-Ita », Accademia University Press, ID : 10.4000/books.aaccademia.7618
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Résumé
Semantic change detection task in a relatively low-resource language like Italian is challenging. By using contextualized word embeddings, we formalize the task as a distance metric for two flexible-size sets of vectors. Various distance metrics like average Euclidean Distance, average Canberra distance, Hausdorff distance, as well as Jensen–Shannon divergence between cluster distributions based on K-means clustering and Gaussian mixture model are used. The final prediction is given by an ensemble of top-ranked words based on each distance metric. The proposed method achieved better performance than a frequency and collocation based baselines.