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| license: apache-2.0 |
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| > **Languages:** [简体中文](README_ZH.md) · [English](README.md) |
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| # dojo_sector_info — Sector Taxonomy |
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| ## Overview |
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| Three-level sector taxonomy (L1 industry → L2 chain → L3 sub-sector) with bilingual Chinese/English names and definitions. |
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| ## Files |
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| | File | Description | |
| |------|-------------| |
| | `data.parquet` | Taxonomy tree (one L1 row each; L2/L3 nested in `children`) | |
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| ## Key Fields |
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| | Field | Description | |
| |-------|-------------| |
| | `id` | L1 sector ID | |
| | `name` / `name_alias` | L1 English name / Chinese alias | |
| | `description` / `description_alias` | L1 English / Chinese definition | |
| | `children` | JSON array nesting L2 → L3 nodes (`id`, `name`, `name_alias`, `description`, `level`, …) | |
| | `symbol` | Placeholder (e.g. `ALL`), not a stock ticker | |
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| ### children Node Shape (L2 / L3) |
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| ```json |
| { |
| "id": 13, |
| "name": "Consumer Electronics", |
| "name_alias": "消费电子", |
| "description": "...", |
| "description_alias": "...", |
| "level": 2, |
| "children": [] |
| } |
| ``` |
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| ## Scale (reference) |
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| ~**11** L1 root rows; hundreds of L3 paths when the tree is expanded. |
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| ## Related Datasets |
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| - [dojo_sector_symbol_relations](https://huggingface.co/datasets/AlphaDojo/dojo_sector_symbol_relations) — ticker assignments to L3 paths |
| - [dojo_sector_precomputed](https://huggingface.co/datasets/AlphaDojo/dojo_sector_precomputed) — precomputed indices built from this taxonomy |
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| ## Notes |
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| - Vendor `industry` / `sector` in [dojo_stock_info](https://huggingface.co/datasets/AlphaDojo/dojo_stock_info) is a **separate** classification from this taxonomy. |
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