Papers by Shang-Yu Su
Natural Language Generation by Hierarchical Decoding with Linguistic Patterns (N18-2)
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| Challenge: | a common and mostly adopted method is the rule-based (or template-based) method for natural language generation. |
| Approach: | They propose a hierarchical decoding NLG model based on linguistic patterns in different levels. |
| Outcome: | The proposed method outperforms the traditional one with a smaller model size. |
Lifelong Language Knowledge Distillation (2020.emnlp-main)
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| Challenge: | Existing methods to perform lifelong language learning (LLL) on stream of different tasks are challenging . Existing models face catastrophic forgetting problem, which can be mitigated by lifelong learning . |
| Approach: | They propose a method that can be easily applied to existing LLL architectures to mitigate degradation. |
| Outcome: | The proposed method improves state-of-the-art models and reduces degradation compared to multi-task models. |
Dual Supervised Learning for Natural Language Understanding and Generation (P19-1)
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| Challenge: | Natural language understanding and natural language generation are important research topics in the NLP and dialogue fields. |
| Approach: | They propose a dual-supervised learning framework for natural language understanding and generation on top of dual supervised learning. |
| Outcome: | The proposed framework boosts the performance of both tasks simultaneously in the benchmark experiments. |
Discriminative Deep Dyna-Q: Robust Planning for Dialogue Policy Learning (D18-1)
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| Challenge: | Existing approaches to improve the effectiveness and robustness of Deep Dyna-Q (DDQ) are based on a discriminator to control the quality of simulated experiences and to improve learning. |
| Approach: | They propose to use an RNN-based discriminator to control the quality of simulated experience to improve the effectiveness and robustness of Deep Dyna-Q. |
| Outcome: | The proposed framework outperforms DDQ by controlling the quality of simulated experience used for planning. |
How Time Matters: Learning Time-Decay Attention for Contextual Spoken Language Understanding in Dialogues (N18-1)
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| Challenge: | Spoken language understanding (SLU) is an essential component in conversational systems. |
| Approach: | They propose a universal time-decay attention mechanism that can be used to decay utterances on the sentence-level and speaker-level. |
| Outcome: | The proposed model significantly improves the state-of-the-art model for contextual understanding performance on the benchmark Dialogue State Tracking Challenge (DSTC4) dataset. |
Towards Unsupervised Language Understanding and Generation by Joint Dual Learning (2020.acl-main)
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| Challenge: | Existing work exploits dual property between understanding and generation to improve performance of modular dialogue systems. |
| Approach: | They propose a dual supervised learning framework that exploits the dual property between understanding and generation. |
| Outcome: | The proposed framework improves both NLU and NLG performance by incorporating supervised and unsupervised learning algorithms. |
Towards Understanding of Medical Randomized Controlled Trials by Conclusion Generation (D19-62)
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| Challenge: | Using machine learning to interpret large amounts of data can be over-whelming for clinicians. |
| Approach: | They propose to use PubMed 200k RCT sentence classification dataset to generate RCT conclusion generation task. |
| Outcome: | The proposed model improves quality and correctness in generated conclusions compared to baseline model . the proposed model is not suitable for all RCTs, but it could be improved . |
Dual Inference for Improving Language Understanding and Generation (2020.findings-emnlp)
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| Challenge: | Existing studies have exploited the duality of the task pairs in machine translation and speech recognition. |
| Approach: | They propose to leverage the duality in the inference stage without retraining whole models. |
| Outcome: | The proposed method is effective in both NLU and NLG tasks, providing the great potential of practical use. |