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18](https://deepnote.com/project/38755e4e-23f6-4f5f-8c68-8a2e4114b1c1/notebook/33066318f5884adc8417068df0f40431)比较标签信息、身份信息和读出形式。\n\n- **换环境失效是否就是负迁移？** 看[环境变化与负迁移](/course/blocks/environment-shift-versus-negative-transfer.html)，再用[LAB 19](https://deepnote.com/project/38755e4e-23f6-4f5f-8c68-8a2e4114b1c1/notebook/c20ef6a65d184331b1b52bf351077504)分别计算适配收益与相对scratch收益。","sha256":"e15af766bfdd95248a72eee449be07b21825db5fb82400539f177dbfbcf75e04","chapter":{"id":"course","title":"CLS 06 · 表示的三个检查：目标、信息与新域"},"unit":{"id":"cls07-教师信息迁移与域变化","title":"CLS 06 · 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19](https://deepnote.com/project/38755e4e-23f6-4f5f-8c68-8a2e4114b1c1/notebook/c20ef6a65d184331b1b52bf351077504)分别计算适配收益与相对scratch收益。","sha256":"2ef2ec8a8fd967adffc562707501137a4fcc967a2af3e53e4d167b0e0f1aff51","chapter":{"id":"course","title":"CLS 06 · 表示的三个检查：目标、信息与新域"},"unit":{"id":"cls07-教师信息迁移与域变化","title":"CLS 06 · 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02](https://deepnote.com/project/38755e4e-23f6-4f5f-8c68-8a2e4114b1c1/notebook/4bd450d54870432db91c80a4df563b8e)。","sha256":"4730b4cad436cd4b274c52e198e7548d06b30738b1d878fb35771460fd51ec8f","chapter":{"id":"course","title":"CLS 06 · 表示的三个检查：目标、信息与新域"},"unit":{"id":"cls07-教师信息迁移与域变化","title":"CLS 06 · 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19](https://deepnote.com/workspace/ise3309jingao-5ba66b0a-4283-4f5a-ae06-3f68d3201e99/project/38755e4e-23f6-4f5f-8c68-8a2e4114b1c1/notebook/c20ef6a65d184331b1b52bf351077504?utm_source=openai&utm_medium=mcp&utm_campaign=openaimcp&utm_content=c20ef6a65d184331b1b52bf351077504&utm_term=get_notebook) 的真实逻辑回归与适配比较（输入为两维解析特征，不是照片）和 [LAB 02](https://deepnote.com/workspace/ise3309jingao-5ba66b0a-4283-4f5a-ae06-3f68d3201e99/project/38755e4e-23f6-4f5f-8c68-8a2e4114b1c1/notebook/4bd450d54870432db91c80a4df563b8e?utm_source=openai&utm_medium=mcp&utm_campaign=openaimcp&utm_content=4bd450d54870432db91c80a4df563b8e&utm_term=get_notebook) 的实际参数迁移各承担其中一层证据。","sha256":"d622785e68c1be46b0cab51204b3da00c5c09a4111af63a00a58898ce3ad502c","chapter":{"id":"course","title":"CLS 06 · 表示的三个检查：目标、信息与新域"},"unit":{"id":"cls07-教师信息迁移与域变化","title":"CLS 06 · 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07](https://deepnote.com/workspace/ise3309jingao-5ba66b0a-4283-4f5a-ae06-3f68d3201e99/project/38755e4e-23f6-4f5f-8c68-8a2e4114b1c1/notebook/586e66e049764158a50747e69c219312?utm_source=openai&utm_medium=mcp&utm_campaign=openaimcp&utm_content=586e66e049764158a50747e69c219312&utm_term=get_notebook) 改变的不是标签供给，而是输出要求：即使整图类别判断正确，网络还要交付对象在哪里。","sha256":"12bcd5d53dcdcdd3a25813b2723f5fe32ed93be252405fcf1d9df668daa7d8a8","chapter":{"id":"course","title":"CLS 06 · 表示的三个检查：目标、信息与新域"},"unit":{"id":"cls07-教师信息迁移与域变化","title":"CLS 06 · 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