Papers by Yiming Ju
CMQA: A Dataset of Conditional Question Answering with Multiple-Span Answers (2022.coling-1)
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| Challenge: | Existing QA datasets only contain unconditional and parallel answers . conditional question answering with hierarchical multi-span answers is challenging for the community to solve . |
| Approach: | They propose a conditional question answering task with hierarchical multi-span answers . they propose CMQA, which contains conditional and hierarchic samples . |
| Outcome: | The proposed task can be used to build more reliable and sophisticated QA systems. |
Exploiting Contextual Knowledge in LLMs through đť’±-usable Information based Layer Enhancement (2025.acl-long)
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| Challenge: | Existing approaches to enhance the context-faithfulness of Large Language Models (LLMs) ignore the fundamental mechanism of how contextual information is processed within LLMs’ internal states. |
| Approach: | They propose a method that enhances the utilization of contextual knowledge within LLMs’ internal representations by employing V-usable information analysis. |
| Outcome: | The proposed method improves context-faithfulness generation in Question-Answering tasks, particularly in scenarios involving unknown or conflicting contextual knowledge. |
MIND: Towards Immersive Psychological Healing with Multi-Agent Inner Dialogue (2025.findings-emnlp)
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Yujia Chen, Changsong Li, Yiming Wang, Tianjie Ju, Qingqing Xiao, Nan Zhang, Zifan Kong, Peng Wang, Binyu Yan
| Challenge: | Mental health issues are worsening in today’s competitive society, such as depression and anxiety. |
| Approach: | They propose a multi-agent inner dialogue paradigm that provides more immersive psychological healing environments. |
| Outcome: | The proposed paradigm provides more immersive psychological healing environments. |
A Hierarchical Explanation Generation Method Based on Feature Interaction Detection (2023.findings-acl)
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| Challenge: | Existing work on hierarchical attributions tends to limit text groups to a continuous text span, which is difficult for humans to read. |
| Approach: | They propose a method which captures feature interactions and converts non-hierarchical explanations into hierarchical versions. |
| Outcome: | The proposed method can convert ubiquitous non-hierarchical explanations into their corresponding hierarchical versions. |
Enhancing Multiple-choice Machine Reading Comprehension by Punishing Illogical Interpretations (2021.emnlp-main)
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| Challenge: | Multiple-choice MRC is one of the most studied tasks in MRC due to the convenience of evaluation and the flexibility of answer format. |
| Approach: | They propose to use multiple-choice MRC to explain a trained model and reveal how it arrives at the prediction by punishing illogical attributions. |
| Outcome: | The proposed method improves model performance without external information and model structure change without any external information. |
Logic Traps in Evaluating Attribution Scores (2022.acl-long)
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| Challenge: | Modern deep learning models are notoriously opaque, which has motivated the development of methods for interpreting how deep models predict. |
| Approach: | They propose to review existing methods for evaluating attribution scores and summarize the logic traps in these methods. |
| Outcome: | The proposed methods show that they do not contain logic traps and that they are not reliable. |
Mitigating Training Imbalance in LLM Fine-Tuning via Selective Parameter Merging (2024.emnlp-main)
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| Challenge: | Existing studies suggest that the order of training samples can affect model performance, but this is not the case. |
| Approach: | They propose to merge supervised fine-tuning models with different data orders to mitigate this imbalance by parameter merging. |
| Outcome: | The proposed method outperforms the weighted-average method on five datasets. |