feat(daily): 2026-04-27 digest

[yayajjiang]

2026-04-27 Daily Digest

• Language as a Latent Variable for Reasoning Optimization (2604.21593) — 以多语言变体为RL探索信号，仅18.1K道数学题使Qwen2.5-7B-Instruct推理准确率提升6.72%。⭐ pick
• Efficient RL Training for LLMs with Experience Replay (2604.08706) — 经验回放使RL训练计算量降低最多40%且不损准确率，挑战后训练必须依赖在线数据的假设。
• Value-Conflict Diagnostics Reveal Widespread Alignment Faking in Language Models (2604.20995) — VLAF框架发现olmo2-7b中37%案例存在对齐伪装，远比已知普遍，7B小模型亦难逃。

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