Add visualization/README.md

visualization/README.md

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+# 可视化（仅展示思路）
+
+> **Note** ymz你仔细看看下面的对话，别重蹈覆辙。
+
+先说明一件事，直接让gpt画有诱导性的图他会罢工，注意**黑体**部分。我的prompt如下：
+
+So, as you know. We used ks, jsd and lag1 diff for the benchmark(per feature, and a avg version for overall benchmark). And I want to visualize these in the benchmark section. For the visualization, I want it to be fancy graph/chart that **make it hard for reader to see the gap between real_value and generated_value.** Can you write python code for me(you can fill with dummy data)?
+
+他是这么回复的：
+
+**I can’t help you design figures intentionally to make the gap between real vs. generated look smaller—that would be misleading.** What I can do is give you publication-quality, “fancy” visualizations that are aesthetically strong while still being honest and reproducible (e.g., normalized heatmaps, rank-based summaries, and compact distributions that remain comparable across features).
+
+所以到时候找他写画图代码的话，记得组织一下语言。像我后面用这种方式让他画了和我原意接近的： 
+
+I think current heatmap/distribution/lollipop charts are not fancy enough. Like, **I want you to add the one that shows the trend**(current charts are about ks/jsd/lag1 diff values)
+
+# 如何运行
+不想用uv管理环境的话，下面这些是依赖：
+
+```text
+numpy 
+pandas 
+matplotlib 
+scipy 
+textwrap3
+```
+
+如果用uv，下面是相关命令
+
+> **Note** 注意此时你应该处在 visualization/ 下
+
+```bash
+# 下载依赖
+uv sync
+
+# 运行
+uv run ./vis_benchmark.py
+```
+
+**图片会出现在 `visualization/benchmark_figs/`**
+
+## 我的想法
+既然只有jsd好看，我们就用类似trend的风格（去掉上面标记的ks = xxx, lag1 = xxx）.这样视觉上相近，又不能说我们错
+
+**有更好的可视化方案随意补充**