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LSCDiscovery: A shared task on semantic change discovery and detection in Spanish

2022-05-13 14:52:18
Frank D. Zamora-Reina, Felipe Bravo-Marquez, Dominik Schlechtweg
arXiv_CL
     
Abstract

We present the first shared task on semantic change discovery and detection in Spanish and create the first dataset of Spanish words manually annotated for semantic change using the DURel framework (Schlechtweg et al., 2018). The task is divided in two phases: 1) Graded Change Discovery, and 2) Binary Change Detection. In addition to introducing a new language the main novelty with respect to the previous tasks consists in predicting and evaluating changes for all vocabulary words in the corpus. Six teams participated in phase 1 and seven teams in phase 2 of the shared task, and the best system obtained a Spearman rank correlation of 0.735 for phase 1 and an F1 score of 0.716 for phase 2. We describe the systems developed by the competing teams, highlighting the techniques that were particularly useful and discuss the limits of these approaches.

Abstract (translated)

URL

https://arxiv.org/abs/2205.06691

PDF

https://arxiv.org/pdf/2205.06691.pdf

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