[action-translation] resync: ar1_turningpts.md#105
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Pull request overview
本 PR 将中文讲义 ar1_turningpts.md 进行整篇前向 resync，使其与上游英文源文档（含 numpyro/jax 版本实现）内容与结构对齐，并补齐旧译稿缺失的大段推导、讨论与代码实现。
Changes:
- 将建模与推断实现从
pymc更新为numpyro + jax，并重写相关示例代码（含 AR1 NamedTuple、JAX 仿真与统计量计算）。 - 补齐并重排讲义内容：新增/扩展推导步骤、样本路径统计量定义、比较与结论等段落。
- 新增翻译同步状态文件
.translate/state/ar1_turningpts.md.yml，记录 resync 元数据。
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 5 comments.
| File | Description |
|---|---|
| lectures/ar1_turningpts.md | 整篇 resync：更新到 numpyro/jax 版本，并补齐缺失内容与图表/代码单元 |
| .translate/state/ar1_turningpts.md.yml | 新增 resync 元数据（source sha、日期、模型、模式等） |
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| ```{include} _admonition/gpu.md | ||
| ``` |
| # 绘制后验分布图和轨迹图 | ||
| if dis_plot: | ||
| plot_data = az.from_numpyro(posterior=mcmc) | ||
| az.plot_trace_dist(plot_data, var_names=['ρ', 'σ']) |
| next_up_turn = jnp.where( | ||
| jnp.any(up_seq == 1), | ||
| jnp.maximum(jnp.argmax(up_seq == 1), 1), # 排除0的返回值 | ||
| len(y) | ||
| ) |
| next_down_turn = jnp.where( | ||
| jnp.any(down_seq == 1), | ||
| jnp.maximum(jnp.argmax(down_seq == 1), 1), | ||
| len(y) | ||
| ) |
| # 模拟未来路径并计算统计量 | ||
| for n in range(N): | ||
| sim_path = AR1_simulate(rho, sigma, initial_path[-1], T1) | ||
| next_reces[n] = next_recession(np.hstack([initial_path[-3:-1], sim_path])) | ||
| severe_rec[n] = severe_recession(sim_path) | ||
| min_vals[n] = minimum_value(sim_path) | ||
| next_up_turn[n], next_down_turn[n] = next_turning_point(sim_path) | ||
| future_temp = future_path[n, :] | ||
| (next_reces_val, severe_rec_val, min_val_8q_val, | ||
| next_up_turn_val, next_down_turn_val |
The resynced file keeps Chinese plot labels but reverted the import cell to the source's exact form, losing the Source Han Serif setup - Chinese in figures would render as missing glyphs. Residual #107 class found in the merge review; applied wave-wide. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
✅ Translation Quality ReviewVerdict: PASS | Model: claude-sonnet-5 | Date: 2026-07-18 📝 Translation Quality
Summary: This is a high-quality, comprehensive resync translation that accurately preserves mathematical content, code structure, and technical terminology from the English source. The translation reads fluently in academic Chinese and maintains consistency with the provided glossary. Minor stylistic refinements could be made in a few sentences, but no critical accuracy or syntax issues were found. The added font-configuration code is a notable deviation worth flagging for verification, though it likely serves a legitimate rendering purpose in the Chinese-language build pipeline. Excellent handling of complex mathematical notation and LaTeX equations, all preserved accurately across the resync Technical terminology (e.g., 停时/stopping time, 后验分布/posterior distribution, 置信区间/confidence interval) is consistent and matches standard academic Chinese usage Code comments and docstrings are fully and naturally translated, maintaining professional tone Heading translations align well with the glossary and translation metadata block Complex conditional/turning-point definitions are translated with precision, preserving logical structure and mathematical rigor Suggestions:
🔍 Diff Quality
Summary: The target document was correctly resynced to match the current source's structure, content, and code cells, with an accurate translation heading map. This review was generated automatically by action-translation review mode. |
…anslation#116) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Forward Resync: ar1_turningpts.md
Source: QuantEcon/lecture-python.myst — lectures/ar1_turningpts.md
Source commit:
59c6877This PR resyncs the translation to match the current source document.
Reason: The Chinese translation is based on an entirely older version of this lecture using pymc instead of numpyro/jax, and is missing large portions of the source content: no gpu.md admonition, no AR1/create_ar1 NamedTuple classes, missing detailed derivation steps (e.g., the two-line equality in eq4 derivation), missing discussion of 'severe recession' definition details, missing P_t/N_t negative turning point full discussion, missing 'time to next severe recession' explanation nuances, missing detailed conclusion section, missing explanations of trace plots interpretation, missing comparison discussion paragraphs, and different/older code implementations (pure Python loops vs JAX vectorized code). Overall it reflects a substantially outdated and incomplete translation relative to the current English source, requiring re-translation.
Changes
Whole-file resync applied. The entire document was resynced in a single pass.
Created by action-translation forward resync