{"id":28593,"date":"2024-03-18T18:16:16","date_gmt":"2024-03-18T09:16:16","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/python%e3%81%aetf-placeholder%e9%96%a2%e6%95%b0%e3%81%ae%e7%9b%ae%e7%9a%84%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/"},"modified":"2024-03-22T18:57:54","modified_gmt":"2024-03-22T09:57:54","slug":"python%e3%81%aetf-placeholder%e9%96%a2%e6%95%b0%e3%81%ae%e7%9b%ae%e7%9a%84%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/python%e3%81%aetf-placeholder%e9%96%a2%e6%95%b0%e3%81%ae%e7%9b%ae%e7%9a%84%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/","title":{"rendered":"Python\u306etf.placeholder\u95a2\u6570\u306e\u76ee\u7684\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>TensorFlow\u3067\u306f\u3001tf.placeholder()\u95a2\u6570\u306f\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\uff08placeholder\uff09\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306f\u30b0\u30e9\u30d5\u306e\u69cb\u7bc9\u6642\u306b\u5165\u529b\u30c7\u30fc\u30bf\u3092\u63d0\u4f9b\u3059\u308b\u5834\u6240\u3067\u3042\u308a\u3001\u30b0\u30e9\u30d5\u5185\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3082\u8003\u3048\u3089\u308c\u307e\u3059\u304c\u3001\u305d\u306e\u5024\u306f\u8a08\u7b97\u30b0\u30e9\u30d5\u304c\u5b9f\u884c\u3055\u308c\u308b\u3068\u304d\u306b\u306e\u307f\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u6a5f\u80fd\u306f\u3001\u8a08\u7b97\u30b0\u30e9\u30d5\u3092\u5148\u306b\u5b9a\u7fa9\u3057\u3001\u5b9f\u969b\u306e\u5b9f\u884c\u6642\u306bfeed_dict\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u5177\u4f53\u7684\u306a\u5024\u3092\u6e21\u3059\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u3092\u5b9a\u7fa9\u3059\u308b\u969b\u306b\u306f\u3001\u30c7\u30fc\u30bf\u578b\u3068\u5f62\u72b6\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\uff09\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5f62\u72b6\u30d1\u30e9\u30e1\u30fc\u30bf\u306fNone\u306b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u3001\u305d\u306e\u5834\u5408\u306f\u5f62\u72b6\u304c\u4efb\u610f\u306e\u30b5\u30a4\u30ba\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>tf.placeholder()\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e00\u6b21\u5143\u306e\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306e\u30d9\u30af\u30c8\u30eb\u3092\u53d7\u3051\u53d6\u308b\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>x = tf.placeholder(tf.float32, shape=(<span class=\"hljs-literal\">None<\/span>,))\r\n<\/code><\/pre>\n<p>\u5b9f\u884c\u6642\u306b\u306f\u3001\u5177\u4f53\u7684\u306a1\u6b21\u5143\u306e\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u30d9\u30af\u30c8\u30eb\u3092x\u306bfeed_dict\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>sess.run(..., feed_dict={x: [<span class=\"hljs-number\">1.0<\/span>, <span class=\"hljs-number\">2.0<\/span>, <span class=\"hljs-number\">3.0<\/span>]})\r\n<\/code><\/pre>\n<p>TensorFlow\u30e2\u30c7\u30eb\u3092\u69cb\u7bc9\u3059\u308b\u969b\u306b\u306f\u3001\u5360\u4f4d\u7b26\u304c\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u30b5\u30f3\u30d7\u30eb\u3001\u30e9\u30d9\u30eb\u3001\u5b66\u7fd2\u7387\u306a\u3069\u306e\u5165\u529b\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>TensorFlow\u3067\u306f\u3001tf.placeholder()\u95a2\u6570\u306f\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\uff08placeholder\uff09\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306f\u30b0\u30e9\u30d5\u306e\u69cb\u7bc9\u6642\u306b\u5165\u529b\u30c7\u30fc\u30bf\u3092\u63d0\u4f9b\u3059\u308b\u5834\u6240\u3067\u3042\u308a\u3001\u30b0\u30e9\u30d5\u5185\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-28593","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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