Papers by Kaiqi Zhao
Less is More: Knowledge-Aware Compression for Long Legal Judgment Prediction (2026.findings-acl)
Copied to clipboard
| Challenge: | Recent advances leverage large language models (LLMs) for legal reasoning, but they face high computational costs and information degradation when handling long cases. |
| Approach: | They propose a framework that selectively retains legally relevant information while reducing redundant or less informative content, enabling efficient and accurate long-context reasoning. |
| Outcome: | The proposed framework outperforms existing methods on four real-world datasets spanning multiple jurisdictions and languages. |
LegalChainReasoner: Grounding Criminal Judicial Opinion Generation via Structured Legal Chains (2026.acl-long)
Copied to clipboard
| Challenge: | Current legalAI tasks divide sentencing and legal reasoning into two separate tasks, resulting in inconsistency between the reasoning and predictions. |
| Approach: | They propose a new task that generates both legal reasoning and sentencing decisions using a framework that applies structured legal chains to guide the model through comprehensive case assessments. |
| Outcome: | The proposed model outperforms baseline models on real-world, open-source Chinese legal case datasets. |
D2GCLF: Document-to-Graph Classifier for Legal Document Classification (2022.findings-naacl)
Copied to clipboard
| Challenge: | Existing methods learn latent representations for each document by considering the semantics and themes of the documents. |
| Approach: | They propose a document-to-graph classifier which extracts facts as relations between key participants in a law case and represents a legal document with four relation graphs. |
| Outcome: | The proposed method outperforms the state-of-the-art methods on a real-world legal document dataset. |
Disentangling Reasoning Logic to Resolve Explicit Knowledge Conflicts (2026.acl-long)
Copied to clipboard
| Challenge: | Existing approaches to resolve explicit knowledge conflicts are based on semantic decoding and auxiliary embedding. |
| Approach: | They propose a framework that adjudicates conflicts by structuring the underlying logic. |
| Outcome: | Experiments show that the proposed framework improves on existing models. |
SKGSum: Structured Knowledge-Guided Document Summarization (2024.findings-acl)
Copied to clipboard
Qiqi Wang, Ruofan Wang, Kaiqi Zhao, Robert Amor, Benjamin Liu, Jiamou Liu, Xianda Zheng, Zijian Huang
| Challenge: | Existing summarization methods ignore the importance of summary structure, resulting in summaries that emphasize the most prominent information while omitting essential details from other sections. |
| Approach: | They propose a method that uses automatically extracted summary points to generate summaries. |
| Outcome: | The proposed methods improve quality and BERTScore of summaries and broaden the types of documents that can be effectively summarized. |
Evo-PI: Aligning Medical Reasoning via Evolving Principle-Guided Supervision (2026.acl-long)
Copied to clipboard
| Challenge: | Existing models with static prompts, rules, or reward models are constrained by static supervision, which often fails to shape the underlying reasoning process, leading to brittle generalization and performance saturation in complex decision-making tasks. |
| Approach: | They propose a principle-centric learning framework that treats reasoning principles as explicit, language-based supervision signals that can be generated, evaluated, and iteratively evolved. |
| Outcome: | The proposed framework treats reasoning principles as explicit, language-based supervision signals that can be generated, evaluated, and iteratively evolved. |
CDAˆ2: Counterfactual Diffusion Augmentation for Cross-Domain Adaptation in Low-Resource Sentiment Analysis (2025.coling-main)
Copied to clipboard
| Challenge: | Domain adaptation is widely employed in cross-domain sentiment analysis, but concerns have been raised regarding their robustness and sensitivity to data distribution shift. |
| Approach: | They propose a framework CDA2 for cross-domain adaptation in low-resource sentiment analysis which employs counterfactual diffusion augmentation. |
| Outcome: | The proposed framework generates high-quality counterfactual target samples and achieves state-of-the-art performance on benchmark datasets. |