feat: publish alignment deep dive
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# Alignment:Grok 候选论文线索
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> 状态:**未核验候选账**
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> 生成方式:本机 Grok CLI Headless 模式,2026-07-29
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> 使用约束:这里只记录检索线索,不能直接作为正文事实、公式、数字或历史结论的依据。正式内容必须回到论文 PDF、会议页面或研究机构原文逐项核验。
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## 这次线索检索的用途
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正式研究账本已经覆盖 SFT、偏好数据、奖励模型、PPO/RLHF、RLAIF、DPO、RLVR、DeepSeek 与 Kimi/K3。Grok 的任务不是替正文写作,而是做一次“漏项扫描”:寻找可能缺失的论文分支、失败模式和边界案例。
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它给出 45 个候选条目,按下列九组组织:
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| 候选组 | 条目数 | 对正式研究最有价值的提醒 |
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|---|---:|---|
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| SFT | 6 | FLAN、T0、Natural Instructions、SuperNI、Self-Instruct、LIMA 需要区分任务泛化、数据生成与少量高质量示范 |
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| 偏好 / 奖励模型 | 5 | 不只看标注规模,也要检查偏好分歧、长度相关性和奖励泛化 |
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| PPO / RLHF | 6 | Christiano → Ziegler → Stiennon → InstructGPT 的主线应与 PPO 算法本体分开 |
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| RLAIF | 4 | Constitutional AI、自我批评修订与 AI preference 不是同一层概念 |
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| DPO 分支 | 8 | RRHF、SLiC-HF、IPO、KTO、ORPO、SimPO 等不能笼统称作“DPO 小改版” |
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| 失败模式 | 5 | reward hacking、overoptimization、sycophancy、verbosity bias 应拆成不同故障 |
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| RLVR | 4 | PRM 是前驱但不等于程序化 verifier;DeepSeekMath 的 GRPO 与具体奖励来源要分开 |
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| DeepSeek | 4 | LLM、Math、V3、R1 的角色不同,不能把 R1-Zero 的纯 RL 结论外推到完整 R1 |
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| Kimi | 3 | k1.5、K2、K2.5 的推理、agentic、多模态主线不同 |
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## 候选清单
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以下名称保留为后续查漏入口;存在重复跨组复用,不代表 45 篇互不重复的唯一论文。
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### SFT 与指令数据
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- Finetuned Language Models Are Zero-Shot Learners(FLAN)
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- Multitask Prompted Training Enables Zero-Shot Task Generalization(T0)
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- Natural Instructions
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- Super-NaturalInstructions
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- Scaling Instruction-Finetuned Language Models
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- Self-Instruct
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- LIMA: Less Is More for Alignment
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### 偏好、奖励模型与 RLHF
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- Deep Reinforcement Learning from Human Preferences
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- Fine-Tuning Language Models from Human Preferences
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- Learning to Summarize from Human Feedback
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- Training Language Models to Follow Instructions with Human Feedback
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- Training a Helpful and Harmless Assistant with Reinforcement Learning from Human Feedback
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- Proximal Policy Optimization Algorithms
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- Scaling Laws for Reward Model Overoptimization
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- AlpacaFarm
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- OpenAssistant Conversations
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- Llama 2: Open Foundation and Fine-Tuned Chat Models
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- Back to Basics: Revisiting REINFORCE-Style Optimization for Learning from Human Feedback in LLMs
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### RLAIF 与宪法式约束
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- Constitutional AI: Harmlessness from AI Feedback
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- RLAIF: Scaling Reinforcement Learning from Human Feedback with AI Feedback
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- UltraFeedback
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- Self-Play Fine-Tuning Converts Weak Language Models to Strong Language Models
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### 直接偏好优化分支
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- Direct Preference Optimization: Your Language Model is Secretly a Reward Model
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- RRHF: Rank Responses to Align Language Models with Human Feedback
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- SLiC-HF: Sequence Likelihood Calibration with Human Feedback
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- A General Theoretical Paradigm to Understand Learning from Human Preferences(IPO)
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- KTO: Model Alignment as Prospect Theoretic Optimization
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- ORPO: Monolithic Preference Optimization without Reference Model
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- SimPO: Simple Preference Optimization with a Reference-Free Reward
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- Zephyr: Direct Distillation of LM Alignment
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- Unpacking DPO and PPO: Disentangling Best Practices for Learning from Preference Feedback
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### 失败模式与评测
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- Sycophancy / 用户信念迎合相关研究
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- A Long Way to Go: Investigating Length Correlations in RLHF
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- RewardBench
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- reward overoptimization / Goodhart 效应相关研究
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- 偏好标注分歧、both-bad pair 与 verbosity bias 相关研究
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### RLVR、DeepSeek 与 Kimi
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- Let’s Verify Step by Step
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- Tülu 3: Pushing Frontiers in Open Language Model Post-Training
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- DeepSeekMath: Pushing the Limits of Mathematical Reasoning in Open Language Models
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- Crossing the Reward Bridge: Expanding RL with Verifiable Rewards Across Diverse Domains
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- DeepSeek LLM
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- DeepSeek-V3 Technical Report
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- DeepSeek-R1
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- Kimi k1.5
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- Kimi K2
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- Kimi K2.5
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## 必须保留的边界提醒
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1. “偏好更长”不能直接写成人类真正想要冗长答案;奖励模型可能只学到了长度代理特征。
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2. sycophancy 不完全等于撒谎,它可能来自 helpfulness、agreeableness 与偏好标签的纠缠。
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3. 人类标注的步骤正确性不等于程序可验证奖励,PRM 只能作为 RLVR 前驱来讲。
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4. DeepSeekMath 同时讨论模型奖励与规则奖励;“用了 GRPO”不能反推出“奖励一定可验证”。
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5. R1-Zero 的少监督 / 纯 RL 路径不能外推为完整 DeepSeek-R1 不需要冷启动与监督数据。
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6. Kimi K2、K2.5 的 agentic / multimodal 叙事不能替代 k1.5 的推理 RL 算法细节。
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7. “DPO 不需要奖励模型”仅指不单独训练显式 RM 并运行 PPO;偏好、参考策略与数据分布仍然存在。
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## 当前裁决
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- 已进入正式账本:有一手 PDF 或官方页面支撑、且边界已经逐项复核的节点。
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- 暂留候选:`Crossing the Reward Bridge`、具体 sycophancy 论文、长度相关论文等,需要在对应专题扩写时重新核对标题、版本、实验设定和数字。
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- 明确不采用:任何仅凭二手叙事得出的“某算法彻底取代另一算法”“纯 RL 不再需要数据”“AI feedback 等于没有人类价值输入”等强结论。
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