Papers by Xiaochun Wei
ExAnte: A Benchmark for Ex-Ante Inference in Large Language Models (2026.eacl-long)
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| Challenge: | Large language models (LLMs) struggle with ex-ante reasoning—making inferences or predictions without access to future information. |
| Approach: | They propose a benchmark that assesses LLMs’ ex-ante inference ability across four tasks: stock prediction, question answering, Wikipedia event generation, and scientific publication generation. |
| Outcome: | The proposed benchmark assesses LLMs’ ex-ante inference ability across four tasks. |
O1-Pruner: Length-Harmonizing Fine-Tuning for O1-Like Reasoning Pruning (2026.findings-acl)
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Haotian Luo, Haiying He, Yibo Wang, Shiwei Liu, Wei Li, Xiaochun Cao, Dacheng Tao, Naiqiang Tan, Li Shen
| Challenge: | Recent long-thought reasoning models adopt extended reasoning processes similar to how humans ponder over complex problems. |
| Approach: | They propose a model that uses RL-style fine-tuning to reduce inference overhead while maintaining accuracy. |
| Outcome: | The proposed model reduces inference overhead while maintaining accuracy. |