Papers by Xiaotao Li
A Mutual Information Perspective on Knowledge Graph Embedding (2025.acl-long)
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| Challenge: | Existing knowledge graph embedding techniques suffer from high intra-group similarity, loss of semantic information, and insufficient inference capability, particularly in complex relation patterns such as 1-N and N-1 relations. |
| Approach: | They propose a knowledge graph embedding framework that leverages mutual information maximization to improve the semantic representation of entities and relations. |
| Outcome: | Extensive experiments on benchmark datasets demonstrate the effectiveness of the proposed method, with consistent performance improvements across various baseline models. |
Learning Embeddings for Rare Words Leveraging Internet Search Engine and Spatial Location Relationships (2021.starsem-1)
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| Challenge: | Existing word embedding techniques depend heavily on the frequencies of words in the corpus, and fail to provide reliable representations for rare words. |
| Approach: | They propose an algorithm to learn embeddings for rare words based on an Internet search engine and the spatial location relationships. |
| Outcome: | The proposed algorithm can learn more accurate representations for a wider range of vocabulary. |
On the Transformer Growth for Progressive BERT Training (2021.naacl-main)
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| Challenge: | Existing methods only conduct network growth in a single dimension, but compound growth operators are beneficial for multiple dimensions. |
| Approach: | They propose a method to train BERT progressively using a Transformer model and explore alternative growth operators in each dimension via controlled comparison. |
| Outcome: | The proposed method speeds up BERT pre-training by 73.6% and 82.2% for the base and large models respectively while achieving comparable performances. |
Beyond the Individual: Virtualizing Multi-Disciplinary Reasoning for Clinical Intake via Collaborative Agents (2026.findings-acl)
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Huangwei Chen, Wu Li, Junhao Jia, Yining Chen, Xiaotao Pang, Ya-Long Chen, Li Gonghui, Haishuai Wang, Jiajun Bu, Lei Wu
| Challenge: | Initial outpatient consultations are costly and difficult to scale to real-time intake. |
| Approach: | They propose a synchronous virtual MDT framework that formalizes the consultation state using a structured SOAP representation, separating evidence collection from diagnostic reasoning to improve traceability and bias control. |
| Outcome: | The proposed framework outperforms state-of-the-art models on ClinicalBench and a real-world RAPID-IPN dataset in documentation quality and consultation capability. |
MHALO: Evaluating MLLMs as Fine-grained Hallucination Detectors (2025.findings-acl)
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| Challenge: | Hallucination remains a critical challenge for multimodal large language models, undermining their reliability in real-world applications. |
| Approach: | They propose a benchmark specifically designed for evaluating MLLMs’ capability in performing token-level hallucination detection (FHD) . they use curated training data to train a specialized model that significantly outperforms existing models. |
| Outcome: | The proposed model outperforms existing models in the evaluation of 9 MLLMs and reaches an average F1IoU of 40.59%. |
C3LRSO: A Chinese Corpus for Complex Logical Reasoning in Sentence Ordering (2025.coling-main)
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| Challenge: | Existing sentence ordering datasets for non-English languages are unavailable. |
| Approach: | They propose a parameter-free sentence ordering dataset that provides genuinely unordered sentences without artificial segmentation cues. |
| Outcome: | The proposed method outperforms existing methods on the sentence ordering task. |