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Author

Hongbo Ma

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#machine learning Preprint Oct 2026

How Much Can Language Models Gain from Test-Time Computation?

How much can test-time computation improve a language model, and at what cost? Test-time scaling is widely proposed as a substitute for larger models, but existing comparisons mostly evaluate one domain at a time and rarely charge selection to the budget. We introduce SELF-POT, a benchmark and evaluation framework that...

Bang Yang, Jing-Yuan Li, Jia-Jun Fan et al. · 0 citations
#artificial intelligence Preprint Sep 2026

$S^3$: Spectral Null-Space Swap Makes Reasoning Models Efficient

This work is the first to unveil the critical role of the null space and harness it for model optimization, and uses a simplified analytical model about optimization to demonstrate why null-space can effectively reduce attention entropy, thereby improving the efficiency of reasoning.

Hong-Bo Ma, Sansheng Cao, Jia-Jun Fan et al. · 0 citations
Preprint Aug 2026

Constraint-First Reasoning: A Training-Free Protocol for Exploiting Answer-Space Constraints in Mathematical Problem Solving

This work introduces Constraint-First Reasoning (CFR), a training-free two-stage prompting protocol that improves direct CoT on multiple backbones and positions CFR as a targeted test-time intervention whose benefit depends on recoverable constraints and reliable Stage 1 extraction.

Hongbo Ma, Bang Yang, Y. Cheng et al. · 0 citations

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