Human evaluators compare newly generated metaphorical sentences with human-generated sentences and rate each candidate on four dimensions: fluency, meaning, creativity, and metaphoricity.

University of Michigan - Ann Arbor

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This two-stage pipeline first trains a classifier to distinguish metaphorical sentences from literal ones. Sentences classified as metaphorical then enter a reconstruction stage in which metaphorical tokens are masked and recovered using T5 or BART extraction methods, or BERT or XLM-R masked language modeling.

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