Papers by Linhan Li
MDERank: A Masked Document Embedding Rank Approach for Unsupervised Keyphrase Extraction (2022.findings-acl)
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| Challenge: | Keyphrase extraction (KPE) extracts phrases in a document that provide a concise summary of the core content. |
| Approach: | They propose an unsupervised keyphrase extraction method that ranks candidates by similarity between embeddings of source document and masked document. |
| Outcome: | The proposed method outperforms state-of-the-art methods on six benchmarks . it achieves average 3.53 improvement over the existing method . |
Context Length Extension via Generalized Extrapolation Scale (2024.findings-acl)
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| Challenge: | Existing work on extrapolating positional embedding (RoPE) has limited results in the application of long context language models. |
| Approach: | They propose a set of parameterized extrapolation functions applied to each layer and attention head to adaptively adjust its extrapolations scales. |
| Outcome: | The proposed model achieves stable extrapolation on 64k contexts by training on 16k length text. |