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Attention Expansion: Enhancing Keyphrase Extraction from Long Documents with Attention-Augmented Contextualized Embeddings

paperactiveprovisionalattention-expansion-enhancing-keyphrase-extraction-from-long-documents-with-attention-augmented-contextualized-embeddings-e6f441cf·1 events·first seen 7d ago

Aliases: Attention Expansion: Enhancing Keyphrase Extraction from Long Documents with Attention-Augmented Contextualized Embeddings

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4arXiv · cs.CL·7d ago·source ↗

Attention Expansion mechanism improves keyphrase extraction from long documents without full-context LLMs

Researchers propose an 'attention expansion' mechanism that augments pre-trained language model token representations with information from out-of-context chunks using static word embeddings, enabling more effective keyphrase extraction from long documents. The approach avoids the computational cost of full-document attention or LLM-based inference while expanding the effective contextual scope of PLM-based models. Evaluated across five PLM backbones and five benchmark corpora, the method consistently improves F1 scores over state-of-the-art baselines in both scientific and news domains.