20260625:很多新内容

This commit is contained in:
2026-06-25 14:08:47 +08:00
parent 91fac5b6fc
commit 6021dea160
375 changed files with 19263 additions and 251 deletions

View File

@@ -0,0 +1,42 @@
---
title: "Reasoning Quality Optimization"
created: 2026-06-24
updated: 2026-06-24
type: concept
tags: ["reasoning", "optimization", "rl", "test-time-scaling"]
sources:
- "[[me2-trm-reasoning-2026]]"
---
# Reasoning Quality Optimization
将推理轨迹质量作为优化信号的方法论,由 Zhang et al. (ICML 2026) 在 ME² + TRM 框架中系统验证。
## 两种优化模式
### Test-Time Scaling (Best-of-N)
- TRM 为 N 条候选推理评分
- 选择与 ME² 原则最对齐的推理
- AIME24: Qwen3-8B 从 44.7% (N=1) → 64.0% (N=16)+19.3%
- 即使 TRM 未见答案正确性监督,更好的推理 → 更好的结果
### RL Training (GRPO + Thinking Rewards)
Gated reward shaping
$$r = r_v \cdot (1 - \alpha + \alpha \cdot \text{Sigmoid}(r_t))$$
- r_vverifiable reward答案正确性0或1
- r_tthinking reward推理质量TRM 输出)
- α:平衡权重
效果:+3.9% across diverse tasks
## 核心洞察
TRM 的训练数据仅包含 verified-correct 推理对——意味着 thinking reward 选择的是"正确的推理中更好的那个",而非"正确 vs 错误"。这在 GRPO 中自然地塑造了推理路径偏好,而无需额外答案信号。
## 参考
- [[me2-trm-reasoning-2026]]
- [[thinking-reward-model]]
- [[grpo]]
- [[me2-principle]]