Abstract
Compared to traditional supervised learning methods, utilizing prompt tuning for relation extraction tasks is a challenging endeavor in the real world. By inserting a template segment into the input, prompt tuning has proven effective for certain classification tasks. However, applying prompt tuning to relation extraction tasks, which involve mapping multiple words to a single label, poses challenges due to difficulties in precisely defining a template and mapping labels to the appropriate words. Prior approaches do not take full advantage of entities and have also overlooked the semantic connections between words in relation label. To address these limitations, we propose a semantic enhancement with prompt (SE-Prompt) which integrates entity and relation knowledge by incorporating two main contributions: semantic enhancement and subject-object relation refinement. These methods empower our model to effectively leverage relation labels and tap into the knowledge contained in pre-trained models. Our experiments on three datasets, under both fully supervised and low-resource settings demonstrate the effectiveness of our approach for relation extraction.
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Wang, C., Li, D., He, X. (2023). SE-Prompt: Exploring Semantic Enhancement with Prompt Tuning for Relation Extraction. In: Yang, X., et al. Advanced Data Mining and Applications. ADMA 2023. Lecture Notes in Computer Science(), vol 14179. Springer, Cham. https://doi.org/10.1007/978-3-031-46674-8_8
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