Papers by Zhaohong Wan
New Datasets and Controllable Iterative Data Augmentation Method for Code-switching ASR Error Correction (2023.findings-emnlp)
Copied to clipboard
| Challenge: | In bilingual or multilingual settings, code-switching ASR has greater challenges and research value. |
| Approach: | They propose a controllable iterative method for improving the performance of mainstream automatic speech recognition systems by using Chinese-English code-switching dialogues. |
| Outcome: | The proposed method achieves the best performance compared with the rule-based, back-translation-based data augmentation methods and large language model ChatGPT. |
Improving Grammatical Error Correction with Data Augmentation by Editing Latent Representation (2020.coling-main)
Copied to clipboard
| Challenge: | Existing methods for enhancing grammatical error correction use noise to generate tokens . existing methods only generate sentences with limited error types, which leads to lack of diversity of generated errors. |
| Approach: | They propose a data augmentation method that can apply noise to latent representations of a sentence to generate synthetic samples with various error types. |
| Outcome: | The proposed method improves performance and robustness of existing models on public benchmarks and on FCE benchmarks. |