Leo's log

Research · 研究

研究Research

这里收集我正在做的研究、长期笔记,以及一些还在成形的项目。

和随笔不同,这一栏更偏向持续、结构化的思考——写得更慢,改得更久,也更愿意把话说清楚。公式、推导和算法都会写出来,不藏在文字后面。

A place for the research I'm doing, long-running notes, and projects still taking shape.

Unlike the essays, this section leans toward sustained, structured thinking — written more slowly, revised for longer, and willing to spell things out. The equations, derivations, and algorithms are on the page, not hidden behind the prose.

研究 — ResearchResearch — 研究

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2026 · 07

贝尔曼方程:形式化、求解与扩展

The Bellman Equation: Formulation, Solution Methods, and Extensions

从贝尔曼期望方程与最优性方程出发,梳理四类求解方法,以及 TD、Q-learning、DQN、软与值分布形式直至 HJB 方程的衍生脉络。

The Bellman Equation: Formulation, Solution Methods, and Extensions

贝尔曼方程:形式化、求解与扩展

From the Bellman expectation and optimality equations through four families of solution methods, and on to the derived forms — TD, Q-learning, DQN, the soft and distributional variants, and the HJB equation.

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