Papers with Span extraction
MaP: A Matrix-based Prediction Approach to Improve Span Extraction in Machine Reading Comprehension (2020.aacl-main)
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| Challenge: | Existing methods to predict the start and end positions of answer spans generate two probability vectors. |
| Approach: | They propose a method that extends the probability vector to a probability matrix. |
| Outcome: | The proposed method improves on SQuAD 1.1 and three other question answering benchmarks. |
Enhanced Language Representation with Label Knowledge for Span Extraction (2021.emnlp-main)
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| Challenge: | Existing approaches to extract text spans from plain text do not fully exploit label knowledge. |
| Approach: | They propose a model to integrate label knowledge into text representations by encoding texts and annotations independently and then integrating label knowledge with an elaborate-designed semantics fusion module. |
| Outcome: | The proposed model achieves state-of-the-art performance on four benchmarks and reduces training time and inference time by 76% and 77% on average compared with the existing paradigm. |