{"id":123837,"date":"2026-11-08T08:25:28","date_gmt":"2026-11-08T00:25:28","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/123837.html"},"modified":"2026-11-08T08:25:28","modified_gmt":"2026-11-08T00:25:28","slug":"%e5%8f%af%e8%a7%86%e5%8c%96-tf-data-%e6%95%b0%e6%8d%ae%e9%9b%86%e6%97%b6%e6%a0%87%e7%ad%be%e5%8f%98%e6%88%90-32-%e5%bc%a0%e9%87%8f-batch-%e4%bd%8d%e7%bd%ae%e6%94%be%e9%94%99","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/123837.html","title":{"rendered":"\u53ef\u89c6\u5316 tf.data \u6570\u636e\u96c6\u65f6\u6807\u7b7e\u53d8\u6210 (32,) \u5f20\u91cf\u2014\u2014batch \u4f4d\u7f6e\u653e\u9519"},"content":{"rendered":"

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\n #content_views.markdown_views > p:empty:has(+ .toc),
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\n #content_views.markdown_views > .toc + h1,
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\n #content_views.markdown_views > .toc + h3,
\n #content_views.markdown_views > .toc + h4,
\n #content_views.markdown_views > .toc + p:empty + h1,
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\u7528 tf.data \u642d\u597d\u7ba1\u7ebf\u540e\u60f3\u62bd\u67e5\u51e0\u5f20\u56fe\uff0c\u7ed3\u679c print(label) \u6253\u51fa\u6765\u7684\u662f\u4e00\u6574\u4e2a\u6279\u6b21\u7684\u5f20\u91cf\uff0c\u56fe\u6807\u9898\u4e5f\u53d8\u6210\u4e00\u4e32\u4e71\u7801\u6570\u5b57\u3002\u8fd9\u7c7b\u95ee\u9898\u51e0\u4e4e\u90fd\u4e0e batch() \u5728\u7ba1\u7ebf\u4e2d\u7684\u4f4d\u7f6e\u6709\u5173\u3002<\/p>\n

\u95ee\u9898\u73b0\u8c61<\/h3>\n

\u4e0b\u9762\u8fd9\u6bb5\u662f\u5178\u578b\u5199\u6cd5\uff1a\u5148 resize\u3001\u518d cache().batch(32).prefetch()\uff0c\u7136\u540e\u53d6\u4e5d\u4e2a\u6837\u672c\u753b\u56fe\u3002<\/p>\n

import<\/span> tensorflow as<\/span> tf
\nimport<\/span> tensorflow_datasets as<\/span> tfds
\nimport<\/span> matplotlib.<\/span>pyplot as<\/span> plt<\/p>\n

train_ds,<\/span> validation_ds,<\/span> test_ds =<\/span> tfds<\/p>\n","protected":false},"excerpt":{"rendered":"

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