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Lexical Semantic Change Discovery

6 June 2021
Sinan Kurtyigit
Maike Park
Dominik Schlechtweg
Jonas Kuhn
Sabine Schulte im Walde
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Abstract

While there is a large amount of research in the field of Lexical Semantic Change Detection, only few approaches go beyond a standard benchmark evaluation of existing models. In this paper, we propose a shift of focus from change detection to change discovery, i.e., discovering novel word senses over time from the full corpus vocabulary. By heavily fine-tuning a type-based and a token-based approach on recently published German data, we demonstrate that both models can successfully be applied to discover new words undergoing meaning change. Furthermore, we provide an almost fully automated framework for both evaluation and discovery.

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