Papers by Zongcheng Ji
Enhancing Dual-Encoders with Question and Answer Cross-Embeddings for Answer Retrieval (2021.findings-emnlp)
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| Challenge: | Existing approaches to solve question answering (QA) problems are limited by the need for text generation and answer retrieval. |
| Approach: | They propose to introduce QA interaction features in scoring function but at the cost of low efficiency in inference stage. |
| Outcome: | The proposed framework significantly outperforms the state-of-the-art method on multiple answer retrieval datasets. |
A Neural Transition-based Joint Model for Disease Named Entity Recognition and Normalization (2021.acl-long)
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| Challenge: | Existing models for disease recognition and normalization ignore text surface form of each candidate concept, causing boundary inconsistency. |
| Approach: | They propose a neural transition-based joint model to normalize disease entities from biomedical text. |
| Outcome: | The proposed model improves on two publicly available datasets. |