Papers by Xianggen Liu
Unsupervised Paraphrasing by Simulated Annealing (2020.acl-main)
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| Challenge: | Existing approaches to generate accurate and different-appearing paraphrases require massive parallel samples for training. |
| Approach: | They propose a novel approach that accomplishes Unsupervised Paraphrasing by Simulated Annealing by performing local editing. |
| Outcome: | The proposed approach outperforms existing models in automatic and human evaluations on Quora, Wikianswers, MSCOCO, and Twitter. |
Vector-Quantized Prompt Learning for Paraphrase Generation (2023.findings-emnlp)
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| Challenge: | Existing methods for paraphrase generation are difficult to understand and generate. |
| Approach: | They propose to generate diverse paraphrases by using instance-dependent prompts to control the generation of pre-trained models. |
| Outcome: | The proposed method achieves state-of-the-art on three benchmark datasets, including Quora, Wikianswers, and MSCOCO. |
Object-oriented Neural Programming (OONP) for Document Understanding (P18-1)
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| Challenge: | Object-oriented Neural Programming (OONP) is a framework for semantically parsing documents in domains. |
| Approach: | They propose a framework for semantically parsing documents in specific domains using OONP . OOPN parsers use a rich family of operations to represent the semantics of the document . |
| Outcome: | The proposed framework can learn to handle fairly complicated ontology with training data of modest sizes. |
Create! Don’t Repeat: A Paradigm Shift in Multi-Label Augmentation through Label Creative Generation (2024.naacl-long)
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| Challenge: | Existing methods for multi-label data augmentation have been ineffective, authors say . a mere 1.5% of labels have more than 100 training instances, a problem that persists for years . |
| Approach: | They propose a new paradigm for multi-label data augmentation called Label Creative Generation . they propose tail-driven conditional augmentation with tail-based sampling and label-conditioned generation . |
| Outcome: | The proposed approach has shown a 10% increase in PSP@1 across three datasets . it effectively mitigates the long-tail effect and enhances model performance . |