Papers by Lihao Wang
Improving Grammatical Error Correction Models with Purpose-Built Adversarial Examples (2020.emnlp-main)
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| Challenge: | Existing methods for grammatical error correction are data-hungry and it is hard to train a seq2seq model with good performance without suf-Clean. |
| Approach: | They propose a method inspired by adversarial training to generate more meaningful and valuable training examples by continually identifying weak spots of a model and to enhance the model by gradually adding adversarials to the training set. |
| Outcome: | The proposed method improves generalization and robustness of GEC models by adding adversarial examples to the training set. |
R3: End-to-End Reasoning-based Planning for Multi-step Retrosynthesis via Reinforcement Learning (2026.acl-long)
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YiFei Wang, Qizhi Pei, Jiangtao Feng, Yuntian Shi, Yi Duan, Lihao Wang, Lei Bai, Lijun Wu, Wei-Ying Ma, Hao Zhou
| Challenge: | Experimental results show that R3 is a superior alternative to traditional search algorithms for multistep retrosynthesis planning. |
| Approach: | They propose a framework that reformulates multistep retrosynthetic planning as a generative reasoning task. |
| Outcome: | The proposed framework achieves state-of-the-art Top-1 accuracy of 43.7% on retrobench . it leverages Large Language Models to reformulate multistep retrosynthesis as a generative reasoning task. |
CrossWeigh: Training Named Entity Tagger from Imperfect Annotations (D19-1)
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| Challenge: | Named entity recognition (NER) models can identify labels in 5.38% of test sentences . a framework to handle label mistakes during NER model training is proposed . |
| Approach: | They propose a framework to manually correct label mistakes in named entity recognition (NER) they aim to improve the accuracy of models by re-evaluating popular models on corrected test sets . |
| Outcome: | The proposed framework can detect label mistakes in 5.38% of test sentences . the proposed framework improves on three datasets with a high-performance model . |