archer at SemEval-2021 Task 1: Contextualising Lexical Complexity

SEMEVAL 2021  ·  Irene Russo ·

Evaluating the complexity of a target word in a sentential context is the aim of the Lexical Complexity Prediction task at SemEval-2021. This paper presents the system created to assess single words lexical complexity, combining linguistic and psycholinguistic variables in a set of experiments involving random forest and XGboost regressors. Beyond encoding out-of-context information about the lemma, we implemented features based on pre-trained language models to model the target word{'}s in-context complexity.

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