Papers by Xiaomin Zhu
Gaussian Process based Deep Dyna-Q approach for Dialogue Policy Learning (2021.findings-acl)
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| Challenge: | Reinforcement learning (RL) is the main dialogue policy learning method in recent years. |
| Approach: | They propose a Gaussian Process based Deep Dyna-Q approach to dialogue policy learning . they propose evaluating the quality of experiences generated by the world model using a discriminator . |
| Outcome: | The proposed approach improves the effectiveness and efficiency of dialogue policy learning by 20% with fewer human-machine interactions. |
Building a Macro Chinese Discourse Treebank (L18-1)
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| Challenge: | Discourse structure analysis is an important research topic in natural language processing. |
| Approach: | They propose to construct a macro discourse structure framework and annotate 147 Newswire articles. |
| Outcome: | The proposed framework can lay the foundation for further analysis of macro discourse structure. |
Chinese Paragraph-level Discourse Parsing with Global Backward and Local Reverse Reading (2020.coling-main)
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| Challenge: | Existing methods on discourse parsing in English suffer from long discourse units and fewer explicit connectives. |
| Approach: | They propose to use two reading modes to construct Chinese paragraph level discourse trees. |
| Outcome: | The proposed model outperforms baselines on Chinese discourse trees. |
Recurrent Alignment with Hard Attention for Hierarchical Text Rating (2024.emnlp-main)
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| Challenge: | Large language models excel at understanding and generating plain text, but they are not tailored to handle hierarchical text structures or directly predict task-specific properties such as text rating. |
| Approach: | They propose a framework that integrates Recurrent Alignment with Hard Attention to analyze hierarchically structured text. |
| Outcome: | The proposed framework outperforms existing state-of-the-art methods on three hierarchical text rating datasets. |
Factual Relation Discrimination for Factuality-oriented Abstractive Summarization (2023.findings-emnlp)
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| Challenge: | Existing factuality-oriented abstractive summarization models only consider the integration of factual information and ignore the causes of factuual errors. |
| Approach: | They propose a factuality-oriented abstractive summarization model that can identify the causes of factual errors. |
| Outcome: | The proposed model outperforms state-of-the-art models in factual metrics. |
MCDTB: A Macro-level Chinese Discourse TreeBank (C18-1)
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| Challenge: | Discourse analysis is becoming increasingly important in the field of natural language processing. |
| Approach: | They propose to annotate macro discourse information and additional discourse information to make annotation more objective and accurate. |
| Outcome: | The results show that the annotations are more objective and accurate than the previous ones. |
Advancing Topic Segmentation and Outline Generation in Chinese Texts: The Paragraph-level Topic Representation, Corpus, and Benchmark (2024.lrec-main)
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| Challenge: | Compared with sentence-level topic structure, paragraph-level topics can grasp and understand the context of a document from a higher level. |
| Approach: | They propose a hierarchical paragraph-level topic structure representation with three layers to guide corpus construction. |
| Outcome: | The proposed method achieves the largest Chinese paragraph-level topic structure corpus, achieving high quality. |
Joint Modeling of Structure Identification and Nuclearity Recognition in Macro Chinese Discourse Treebank (C18-1)
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| Challenge: | Discourse parsing is a challenging task and plays a critical role in discourse analysis. |
| Approach: | They propose a macro discourse structure presentation schema to present the macro level discourse structure analysis. |
| Outcome: | The proposed corpus is based on two tasks of macro discourse structure analysis, including structure identification and nuclearity recognition. |
Not Just Classification: Recognizing Implicit Discourse Relation on Joint Modeling of Classification and Generation (2021.emnlp-main)
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| Challenge: | Existing methods of implicit discourse relation recognition (IDRR) focus on three aspects: enhancing discourse units representation, enhancing semantic interaction, and joint learning with other tasks. |
| Approach: | They propose a joint model to recognize the relation label and generate the target sentence containing the meaning of relations simultaneously. |
| Outcome: | The proposed model achieves the best performance against several state-of-the-art systems on Chinese and English datasets. |