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cs.CL2025
Long or short CoT? Investigating Instance-level Switch of Large Reasoning Models
Ruiqi Zhang, Changyi Xiao, Yixin Cao
With the rapid advancement of large reasoning models, long Chain-of-Thought (CoT) prompting has demonstrated strong performance on complex tasks. However, this often comes with a s…
cs.LG2025
BNPO: Beta Normalization Policy Optimization
Changyi Xiao, Mengdi Zhang, Yixin Cao
Recent studies, including DeepSeek-R1 and Kimi-k1.5, have demonstrated that reinforcement learning with rule-based, binary-valued reward functions can significantly enhance the rea…
cs.LG2025
Knowledge Graph Completion by Intermediate Variables Regularization
Changyi Xiao, Yixin Cao
Knowledge graph completion (KGC) can be framed as a 3-order binary tensor completion task. Tensor decomposition-based (TDB) models have demonstrated strong performance in KGC. In t…