{"id":2259,"date":"2024-12-19T13:31:07","date_gmt":"2024-12-19T05:31:07","guid":{"rendered":"https:\/\/thereisno.top\/?p=2259"},"modified":"2024-12-19T13:54:57","modified_gmt":"2024-12-19T05:54:57","slug":"%e5%bc%80%e6%ba%90%e6%b7%b1%e5%ba%a6%e5%ad%a6%e4%b9%a0%e6%a1%86%e6%9e%b6pytorch","status":"publish","type":"post","link":"https:\/\/thereisno.top\/?p=2259","title":{"rendered":"\u5f00\u6e90\u6df1\u5ea6\u5b66\u4e60\u6846\u67b6PyTorch"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"%E4%BB%80%E4%B9%88%E6%98%AF-pytorch\">\u4ec0\u4e48\u662f PyTorch\uff1f<\/h1>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>PyTorch \u662f\u4e00\u4e2a\u57fa\u4e8e\u8f6f\u4ef6\u7684\u5f00\u6e90\u6df1\u5ea6\u5b66\u4e60\u6846\u67b6\uff0c\u7528\u4e8e\u6784\u5efa\u795e\u7ecf\u7f51\u7edc\uff0c\u5c06 Torch \u7684\u673a\u5668\u5b66\u4e60 (ML) \u5e93\u4e0e\u57fa\u4e8e Python \u7684\u9ad8\u7ea7 API \u76f8\u7ed3\u5408\u3002\u5b83\u7684\u7075\u6d3b\u6027\u548c\u6613\u7528\u6027\u4ee5\u53ca\u5176\u4ed6\u4f18\u70b9\u4f7f\u5176\u6210\u4e3a\u5b66\u672f\u548c\u7814\u7a76\u754c\u9886\u5148\u7684\u673a\u5668\u5b66\u4e60\u6846\u67b6\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>PyTorch \u652f\u6301&nbsp;<strong>\u591a\u79cd\u795e\u7ecf\u7f51\u7edc\u67b6\u6784\uff0c\u4ece\u7b80\u5355\u7684\u7ebf\u6027\u56de\u5f52\u7b97\u6cd5\u5230\u590d\u6742\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u548c\u7528\u4e8e\u8ba1\u7b97\u673a\u89c6\u89c9\u548c\u81ea\u7136\u8bed\u8a00\u5904\u7406 (NLP) \u7b49<\/strong>\u4efb\u52a1\u7684\u751f\u6210\u5f0f\u8f6c\u6362\u5668\u6a21\u578b\u3002PyTorch \u57fa\u4e8e\u5e7f\u4e3a\u4eba\u77e5\u7684 Python \u7f16\u7a0b\u8bed\u8a00\u6784\u5efa\uff0c\u5e76\u63d0\u4f9b\u5e7f\u6cdb\u7684\u9884\u914d\u7f6e\uff08\u751a\u81f3\u9884\u8bad\u7ec3\uff09\u6a21\u578b\u5e93\uff0c\u4f7f\u6570\u636e\u79d1\u5b66\u5bb6\u80fd\u591f\u6784\u5efa\u548c\u8fd0\u884c\u590d\u6742\u7684\u6df1\u5ea6\u5b66\u4e60\u7f51\u7edc\uff0c\u540c\u65f6<strong>\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u5728\u4ee3\u7801\u548c\u6570\u5b66\u7ed3\u6784\u4e0a\u82b1\u8d39\u7684\u65f6\u95f4\u548c\u7cbe\u529b<\/strong>\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>PyTorch \u8fd8\u5141\u8bb8\u6570\u636e\u79d1\u5b66\u5bb6\u5b9e\u65f6\u8fd0\u884c\u548c\u6d4b\u8bd5\u90e8\u5206\u4ee3\u7801\uff0c\u800c\u4e0d\u662f\u7b49\u5f85\u6574\u4e2a\u4ee3\u7801\u5b9e\u73b0 \u2013 \u5bf9\u4e8e\u5927\u578b\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u6765\u8bf4\uff0c\u8fd9\u53ef\u80fd\u9700\u8981\u5f88\u957f\u65f6\u95f4\u3002\u8fd9\u4f7f\u5f97 PyTorch \u6210\u4e3a\u5feb\u901f\u539f\u578b\u8bbe\u8ba1\u7684\u7edd\u4f73\u5e73\u53f0\uff0c\u5e76\u4e14\u8fd8\u5927\u5927\u52a0\u5feb\u4e86\u8c03\u8bd5\u6d41\u7a0b\u3002<\/p>\n\n\n\n<p>PyTorch \u6700\u521d\u7531 Facebook AI Research\uff08\u73b0\u4e3a Meta\uff09\u5f00\u53d1\uff0c\u4e8e 2017 \u5e74\u914d\u7f6e\u4e3a\u5f00\u6e90\u8bed\u8a00\uff0c\u81ea 2022 \u5e74\u8d77\u7531 PyTorch Foundation\uff08\u96b6\u5c5e\u4e8e\u5927\u578b Linux Foundation\uff09\u7ba1\u7406\u3002\u8be5\u57fa\u91d1\u4f1a\u4e3a\u6df1\u5ea6\u5b66\u4e60\u793e\u533a\u63d0\u4f9b\u4e00\u4e2a\u4e2d\u7acb\u7a7a\u95f4\uff0c\u4ee5\u5408\u4f5c\u5e76\u8fdb\u4e00\u6b65\u5f00\u53d1 PyTorch \u751f\u6001\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p>2023 \u5e74\uff0cIBM \u6210\u4e3a PyTorch Foundation \u7684\u4e3b\u8981\u6210\u5458\uff0c\u4ed6\u4eec\u5df2\u5408\u4f5c\u5f00\u5c55\u4e24\u4e2a\u91cd\u5927\u9879\u76ee\uff1a\u652f\u6301\u66f4\u9ad8\u6548\u5730\u8bad\u7ec3\u5177\u6709\u6570\u5341\u4ebf\u53c2\u6570\u7684\u7075\u6d3b AI \u57fa\u7840\u6a21\u578b\uff0c\u4ee5\u53ca\u5927\u5927\u63d0\u9ad8 AI \u8bad\u7ec3\u68c0\u67e5\u70b9\u64cd\u4f5c\u7684\u6210\u672c\u6548\u76ca\u3002IBM \u7684 watsonx \u5e73\u53f0\u5229\u7528 PyTorch \u4e3a\u4eba\u5de5\u667a\u80fd\u57fa\u7840\u6a21\u578b\u63d0\u4f9b\u4f01\u4e1a\u7ea7\u8f6f\u4ef6\u5806\u6808\uff0c\u4ece\u7aef\u5230\u7aef\u8bad\u7ec3\u5230\u6a21\u578b\u5fae\u8c03\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"pytorch-%E7%9A%84%E5%B7%A5%E4%BD%9C%E5%8E%9F%E7%90%86%E6%98%AF%E4%BB%80%E4%B9%88\">PyTorch \u7684\u5de5\u4f5c\u539f\u7406\u662f\u4ec0\u4e48\uff1f<\/h1>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>PyTorch \u7684\u6570\u5b66\u548c\u7f16\u7a0b\u7ed3\u6784\u53ef\u4ee5\u7b80\u5316\u673a\u5668\u5b66\u4e60\u5de5\u4f5c\u6d41\u7a0b\uff0c\u800c\u4e0d\u4f1a\u9650\u5236\u6df1\u5ea6\u795e\u7ecf\u7f51\u7edc\u7684\u590d\u6742\u6027\u6216\u6027\u80fd\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"python\">Python<\/h2>\n\n\n\n<p>Python \u662f\u4e00\u79cd\u5e7f\u6cdb\u7528\u4e8e\u6570\u636e\u79d1\u5b66\u7684\u901a\u7528\u9ad8\u7ea7\u7f16\u7a0b\u8bed\u8a00\uff0c\u4f7f\u5176\u6210\u4e3a\u6570\u636e\u79d1\u5b66\u5bb6\u5c06\u5de5\u4f5c\u6269\u5c55\u5230\u6df1\u5ea6\u5b66\u4e60\u7f51\u7edc\u4e3b\u52a8\u5efa\u6a21\u7684\u76f4\u89c2\u9009\u62e9\u3002Python \u7684\u7b80\u5355\u8bed\u6cd5\u6613\u4e8e\u9605\u8bfb\uff0c\u5b66\u4e60\u65f6\u95f4\u76f8\u5bf9\u8f83\u5c11\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u4efb\u4f55\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u8fd0\u884c\uff0c\u5982 Windows\u3001macOS\u3001Linux \u6216 Unix\u3002\u4e09\u5e74\u591a\u6765\uff0cPython \u4e00\u76f4\u662f GitHub \u4e0a\u7b2c\u4e8c\u5927\u6700\u5e38\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u5e76\u4e8e 2019 \u5e74\u8d85\u8fc7 Java\u3002\u5b83\u7684\u53d7\u6b22\u8fce\u7a0b\u5ea6\u6301\u7eed\u589e\u957f\uff0c2022 \u5e74\u63d0\u5347\u4e86 22.5%\u3002<\/p>\n\n\n\n<p>\u8fd9\u79cd\u7075\u6d3b\u6027\u548c\u7b80\u6d01\u6027\u5e2e\u52a9\u57f9\u80b2\u4e86\u4e00\u4e2a\u5f3a\u5927\u7684 Python \u5f00\u53d1\u4eba\u5458\u5728\u7ebf\u793e\u533a\uff0c\u4ed6\u4eec\u5728\u5404\u79cd Python \u5e93\u548c API \u4e0a\u8fdb\u884c\u534f\u4f5c\uff0c\u4f8b\u5982\u7528\u4e8e\u6570\u5b66\u8fd0\u7b97\u7684 Numerical Python (NumPy)\u3001\u7528\u4e8e\u6570\u636e\u64cd\u4f5c\u7684 Pandas \u6216\u7528\u4e8e\u6570\u636e\u53ef\u89c6\u5316\u7684 matplotlib \u4ee5\u53ca\u6559\u80b2\u8d44\u6e90\u3002\u8be5\u793e\u533a\u8fd8\u5236\u4f5c\u4e86\u5927\u91cf PyTorch \u5e93\uff0c\u65e8\u5728\u51cf\u5c11\u673a\u5668\u5b66\u4e60\u7f16\u7801\u7684\u5355\u8c03\u6027\u548c\u731c\u6d4b\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u548c\u6570\u636e\u79d1\u5b66\u5bb6\u80fd\u591f\u4e13\u6ce8\u4e8e\u521b\u65b0\uff0c\u800c\u4e0d\u662f\u673a\u68b0\u5f0f\u4efb\u52a1\u7f16\u5199\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"%E5%BC%A0%E9%87%8F\">\u5f20\u91cf<\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u4efb\u4f55\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\uff0c\u5373\u4f7f\u662f\u7528\u4e8e\u8868\u9762\u4e0a\u975e\u6570\u5b57\u4fe1\u606f\uff08\u5982\u58f0\u97f3\u6216\u56fe\u50cf\uff09\u7684\u7b97\u6cd5\uff0c\u6570\u636e\u4e5f\u5fc5\u987b\u4ee5\u6570\u5b57\u5f62\u5f0f\u8868\u5f81\u3002PyTorch \u5219\u901a\u8fc7\u5f20\u91cf\u5b9e\u73b0\u6570\u636e\u8868\u5f81\uff0c\u5f20\u91cf\u662f\u8be5\u5e73\u53f0\u8ba1\u7b97\u7684\u6570\u636e\u7684\u57fa\u672c\u5355\u4f4d\u3002 \u9488\u5bf9\u673a\u5668\u5b66\u4e60\uff0c\u5f20\u91cf\u662f\u4e00\u4e2a\u591a\u7ef4\u6570\u5b57\u6570\u7ec4\uff0c\u5176\u529f\u80fd\u7c7b\u4f3c\u4e8e\u6570\u5b66\u7c3f\u8bb0\u8bbe\u5907\u3002\u5728\u8bed\u8a00\u4e0a\uff0c\u201c\u5f20\u91cf\u201d\u662f\u4e2a\u901a\u7528\u672f\u8bed\uff0c\u5305\u542b\u4e00\u4e9b\u66f4\u719f\u6089\u7684\u6570\u5b66\u5b9e\u4f53\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6807\u91cf\u662f\u4e00\u79cd\u96f6\u7ef4\u5f20\u91cf\uff0c\u5305\u542b\u4e00\u4e2a\u6570\u5b57\u3002<\/li>\n\n\n\n<li>\u5411\u91cf\u662f\u4e00\u79cd\u4e00\u7ef4\u5f20\u91cf\uff0c\u5305\u542b\u591a\u4e2a\u76f8\u540c\u7c7b\u578b\u7684\u6807\u91cf\u3002\u5143\u7ec4\u662f\u4e00\u79cd\u4e00\u7ef4\u5f20\u91cf\uff0c\u5305\u542b\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u3002<\/li>\n\n\n\n<li>\u77e9\u9635\u662f\u4e00\u79cd\u4e8c\u7ef4\u5f20\u91cf\uff0c\u5305\u542b\u591a\u4e2a\u76f8\u540c\u7c7b\u578b\u7684\u5411\u91cf\u3002<\/li>\n\n\n\n<li>\u5177\u6709\u4e09\u4e2a\u6216\u66f4\u591a\u7ef4\u5ea6\u7684\u5f20\u91cf\uff08\u5982\u8ba1\u7b97\u673a\u89c6\u89c9\u7b97\u6cd5\u4e2d\u7528\u4e8e\u8868\u793a RGB \u56fe\u50cf\u7684\u4e09\u7ef4\u5f20\u91cf\uff09\u7edf\u79f0\u4e3a N \u7ef4\u5f20\u91cf\u3002 PyTorch \u5f20\u91cf\u7684\u529f\u80fd\u4e0e NumPy \u4e2d\u4f7f\u7528\u7684 ndarray \u7c7b\u4f3c\uff0c\u4f46\u4e0e\u53ea\u80fd\u5728\u4e2d\u592e\u5904\u7406\u5355\u5143 (CPU) \u4e0a\u8fd0\u884c\u7684 ndarray \u4e0d\u540c\uff0c\u5f20\u91cf\u4e5f\u53ef\u4ee5\u5728\u56fe\u5f62\u5904\u7406\u5355\u5143 (GPU) \u4e0a\u8fd0\u884c\u3002GPU \u7684\u8ba1\u7b97\u901f\u5ea6\u6bd4 CPU \u5feb\u5f97\u591a\uff0c\u8003\u8651\u5230\u6df1\u5ea6\u5b66\u4e60\u5e38\u89c1\u7684\u6d77\u91cf\u6570\u636e\u548c\u5e76\u884c\u5904\u7406\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e3b\u8981\u4f18\u52bf\u3002 \u9664\u4e86\u5bf9\u6a21\u578b\u7684\u8f93\u5165\u548c\u8f93\u51fa\u8fdb\u884c\u7f16\u7801\u4e4b\u5916\uff0cPyTorch \u5f20\u91cf\u8fd8\u5bf9\u6a21\u578b\u53c2\u6570\u8fdb\u884c\u7f16\u7801\uff1a\u5728\u673a\u5668\u5b66\u4e60\u4e2d\u201c\u5b66\u4e60\u201d\u7684\u6743\u91cd\u3001\u504f\u5dee\u548c\u68af\u5ea6\u3002\u5f20\u91cf\u7684\u8fd9\u4e00\u5c5e\u6027\u53ef\u4ee5\u5b9e\u73b0\u81ea\u52a8\u5fae\u5206\uff0c\u8fd9\u662f PyTorch \u6700\u91cd\u8981\u7684\u529f\u80fd\u4e4b\u4e00\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"%E6%A8%A1%E5%9D%97\">\u6a21\u5757<\/h2>\n\n\n\n<p>PyTorch \u4f7f\u7528\u6a21\u5757\u4f5c\u4e3a\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u7684\u6784\u5efa\u5757\uff0c\u53ef\u4ee5\u5feb\u901f\u3001\u76f4\u63a5\u5730\u6784\u5efa\u795e\u7ecf\u7f51\u7edc\uff0c\u800c\u65e0\u9700\u624b\u52a8\u7f16\u7801\u6bcf\u4e2a\u7b97\u6cd5\u7684\u7e41\u7410\u5de5\u4f5c\u3002 \u6a21\u5757\u53ef\u4ee5\uff08\u800c\u4e14\u7ecf\u5e38\uff09\u5305\u542b\u5176\u4ed6\u5d4c\u5957\u6a21\u5757\u3002\u9664\u4e86\u53ef\u4ee5\u521b\u5efa\u66f4\u590d\u6742\u7684\u591a\u5c42\u795e\u7ecf\u7f51\u7edc\u5916\uff0c\u8fd8\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06\u8fd9\u4e9b\u590d\u6742\u7684\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u4fdd\u5b58\u4e3a\u5355\u4e2a\u547d\u540d\u6a21\u5757\uff0c\u5e76\u5728\u4e0d\u540c\u7684\u673a\u5668\u3001CPU \u6216 GPU \u4e4b\u95f4\u4f20\u8f93\u3002PyTorch \u6a21\u578b\u751a\u81f3\u53ef\u4ee5\u5728\u975e Python \u73af\u5883\uff08\u5982 C++\uff09\u4e2d\u4f7f\u7528 Torchscript\u8fd0\u884c\uff0c\u6709\u52a9\u4e8e\u5f25\u5408\u7814\u7a76\u539f\u578b\u548c\u751f\u4ea7\u90e8\u7f72\u4e4b\u95f4\u7684\u5dee\u8ddd\u3002 \u4ece\u5e7f\u4e49\u4e0a\u8bb2\uff0cPyTorch \u4e2d\u7528\u4e8e\u6784\u5efa\u548c\u4f18\u5316\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u7684\u6a21\u5757\u4e3b\u8981\u5206\u4e3a\u4e09\u7c7b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>nn \u6a21\u5757\u90e8\u7f72\u4e3a\u795e\u7ecf\u7f51\u7edc\u7684\u5c42\u3002torch.nn \u8f6f\u4ef6\u5305\u5305\u542b\u4e00\u4e2a\u5927\u578b\u6a21\u5757\u5e93\uff0c\u53ef\u4ee5\u6267\u884c\u5377\u79ef\u3001\u6c60\u5316\u548c\u56de\u5f52\u7b49\u5e38\u89c1\u64cd\u4f5c\u3002\u4f8b\u5982\uff0ctorch.nn.Linear(n,m) \u8c03\u7528\u5177\u6709 n \u4e2a\u8f93\u5165\u548c m \u4e2a\u8f93\u51fa\u7684\u7ebf\u6027\u56de\u5f52\u7b97\u6cd5\uff08\u5176\u521d\u59cb\u8f93\u5165\u548c\u53c2\u6570\u968f\u540e\u5728\u540e\u7eed\u4ee3\u7801\u884c\u4e2d\u5efa\u7acb\uff09\u3002<\/li>\n\n\n\n<li>autograd \u6a21\u5757\u63d0\u4f9b\u4e00\u79cd\u81ea\u52a8\u8ba1\u7b97\u68af\u5ea6\u7684\u7b80\u5355\u65b9\u6cd5\uff0c\u7528\u4e8e\u901a\u8fc7\u68af\u5ea6\u4e0b\u964d\u4f18\u5316\u6a21\u578b\u53c2\u6570\uff0c\u9002\u7528\u4e8e\u795e\u7ecf\u7f51\u7edc\u4e2d\u8fd0\u884c\u7684\u4efb\u4f55\u51fd\u6570\u3002\u901a\u8fc7\u9644\u52a0\u4efb\u4f55 require_grad=True \u7684\u5f20\u91cf\uff0c\u53ef\u4ee5\u5411 autograd \u53d1\u51fa\u6307\u793a\uff1a\u8be5\u5f20\u91cf\u4e0a\u7684\u6bcf\u4e2a\u64cd\u4f5c\u90fd\u5e94\u8be5\u8fdb\u884c\u8ddf\u8e2a\uff0c\u4ece\u800c\u5b9e\u73b0\u81ea\u52a8\u5fae\u5206\u3002<\/li>\n\n\n\n<li>Optim \u6a21\u5757\u5c06\u4f18\u5316\u7b97\u6cd5\u5e94\u7528\u4e8e\u8fd9\u4e9b\u68af\u5ea6\u3002Torch.optim \u63d0\u4f9b\u9002\u7528\u4e8e\u5404\u79cd\u4f18\u5316\u65b9\u6cd5\u7684\u6a21\u5757\uff0c\u4f8b\u5982\u968f\u673a\u68af\u5ea6\u4e0b\u964d (SGD) \u6216\u5747\u65b9\u6839\u4f20\u64ad (RMSprop)\uff0c\u4ee5\u6ee1\u8db3\u7279\u5b9a\u7684\u4f18\u5316\u9700\u6c42\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"%E5%8A%A8%E6%80%81%E8%AE%A1%E7%AE%97%E5%9B%BE\">\u52a8\u6001\u8ba1\u7b97\u56fe<\/h2>\n\n\n\n<p>\u52a8\u6001\u8ba1\u7b97\u56fe (DCG) \u662f\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u5728 PyTorch \u4e2d\u7684\u8868\u793a\u65b9\u5f0f\u3002\u62bd\u8c61\u5730\u8bf4\uff0c\u8ba1\u7b97\u56fe\u6620\u5c04\u6570\u5b66\u7cfb\u7edf\u4e2d\u4e0d\u540c\u64cd\u4f5c\u4e4b\u95f4\u7684\u6570\u636e\u6d41\uff1a\u5728\u6df1\u5ea6\u5b66\u4e60\u4e2d\uff0c\u8ba1\u7b97\u56fe\u5b9e\u8d28\u4e0a\u662f\u5c06\u795e\u7ecf\u7f51\u7edc\u7684\u4ee3\u7801\u8f6c\u5316\u4e3a\u6d41\u7a0b\u56fe\uff0c\u6307\u793a\u6bcf\u4e2a\u8282\u70b9\u6267\u884c\u7684\u64cd\u4f5c\u4ee5\u53ca\u7f51\u7edc\u4e2d\u4e0d\u540c\u5c42\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb \u2013 \u5c06\u8f93\u5165\u6570\u636e\u8f6c\u5316\u4e3a\u8f93\u51fa\u6570\u636e\u7684\u6b65\u9aa4\u548c\u5e8f\u5217\u5b89\u6392\u3002<\/p>\n\n\n\n<p>\u52a8\u6001\u8ba1\u7b97\u56fe\uff08\u5982 PyTorch \u4e2d\u4f7f\u7528\u7684\u8ba1\u7b97\u56fe\uff09\u4e0e\u9759\u6001\u8ba1\u7b97\u56fe\uff08\u5982 TensorFlow \u4e2d\u4f7f\u7528\u7684\u8ba1\u7b97\u56fe\uff09\u7684\u533a\u522b\u5728\u4e8e\u524d\u8005\u5c06\u8ba1\u7b97\u7684\u51c6\u786e\u89c4\u8303\u4ee5\u53ca\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u63a8\u8fdf\u5230\u8fd0\u884c\u65f6\u3002\u6362\u8a00\u4e4b\uff0c\u9759\u6001\u8ba1\u7b97\u56fe\u9700\u8981\u5b8c\u5168\u786e\u5b9a\u5e76\u7f16\u8bd1\u6574\u4e2a\u795e\u7ecf\u7f51\u7edc\u7684\u67b6\u6784\u624d\u80fd\u8fd0\u884c\uff0c\u800c\u52a8\u6001\u8ba1\u7b97\u56fe\u53ef\u4ee5\u5728\u8fd0\u884c\u4e2d\u8fdb\u884c\u8fed\u4ee3\u548c\u4fee\u6539\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\u52a8\u6001\u8ba1\u7b97\u56fe\u5bf9\u4e8e\u8c03\u8bd5\u548c\u539f\u578b\u8bbe\u8ba1\u7279\u522b\u6709\u7528\uff0c\u56e0\u4e3a\u53ef\u4ee5\u5355\u72ec\u66f4\u6539\u6216\u8fd0\u884c\u6a21\u578b\u4ee3\u7801\u7684\u7279\u5b9a\u90e8\u5206\uff0c\u800c\u65e0\u9700\u91cd\u7f6e\u6574\u4e2a\u6a21\u578b\u3002\u5bf9\u4e8e\u9762\u5411\u590d\u6742\u8ba1\u7b97\u673a\u89c6\u89c9\u548c NLP \u4efb\u52a1\u7684\u8d85\u5927\u578b\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u6765\u8bf4\uff0c\u91cd\u7f6e\u6a21\u578b\u53ef\u80fd\u4f1a\u6d6a\u8d39\u65f6\u95f4\u548c\u8ba1\u7b97\u8d44\u6e90\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u53ef\u6269\u5c55\u5230\u6a21\u578b\u8bad\u7ec3\uff0c\u56e0\u4e3a\u5728\u53cd\u5411\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u8f7b\u677e\u5730\u53cd\u5411\u751f\u6210\u52a8\u6001\u8ba1\u7b97\u56fe\u3002<\/p>\n\n\n\n<p>\u867d\u7136\u5b83\u4eec\u7684\u56fa\u5b9a\u7ed3\u6784\u53ef\u4ee5\u63d0\u9ad8\u8ba1\u7b97\u6548\u7387\uff0c\u4f46\u9759\u6001\u8ba1\u7b97\u56fe\u7684\u7075\u6d3b\u6027\u6709\u9650\uff1a\u4f8b\u5982\uff0c\u6784\u5efa\u4e00\u4e2a\u6839\u636e\u8f93\u5165\u6570\u636e\u4f7f\u7528\u4e0d\u540c\u5c42\u6570\u7684\u6a21\u578b\uff08\u4f8b\u5982\u53ef\u4ee5\u5904\u7406\u4e0d\u540c\u56fe\u50cf\u5c3a\u5bf8\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc (CNN)\uff09\u5bf9\u4e8e\u4f7f\u7528\u9759\u6001\u56fe\u6765\u8bf4\u662f\u6781\u5176\u56f0\u96be\u7684\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"%E8%87%AA%E5%8A%A8%E5%BE%AE%E5%88%86\">\u81ea\u52a8\u5fae\u5206<\/h2>\n\n\n\n<p>\u53cd\u5411\u4f20\u64ad\u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u795e\u7ecf\u7f51\u7edc\u8bad\u7ec3\u65b9\u6cd5\uff0c\u5c24\u5176\u662f\u5728\u76d1\u7763\u5b66\u4e60\u4e2d\u3002\u9996\u5148\uff0c\u5728\u524d\u5411\u4f20\u9012\u4e2d\uff0c\u6a21\u578b\u83b7\u5f97\u8f93\u5165 (x) \u5e76\u9884\u6d4b\u8f93\u51fa (y)\uff1b\u4ece\u8be5\u8f93\u51fa\u5411\u540e\u63a8\u7b97\uff0c\u4f7f\u7528\u635f\u5931\u51fd\u6570\u6d4b\u91cf\u6a21\u578b\u5728\u4e0d\u540c x \u503c\u4e0b\u7684\u9884\u6d4b\u8bef\u5dee\u3002\u68af\u5ea6\u4e0b\u964d\u6cd5\u901a\u8fc7\u5bf9\u635f\u5931\u51fd\u6570\u5fae\u5206\u6c42\u5bfc\uff0c\u53ef\u4e00\u6b21\u4e00\u5c42\u5730\u8c03\u6574\u795e\u7ecf\u7f51\u7edc\u4e2d\u7684\u6743\u91cd\u3002<\/p>\n\n\n\n<p>PyTorch \u7684 autograd \u6a21\u5757\u4f7f\u7528\u79f0\u4e3a\u94fe\u5f0f\u6cd5\u5219\u7684\u5fae\u79ef\u5206\u516c\u5f0f\u4e3a\u5176\u81ea\u52a8\u5fae\u5206\u6280\u672f\u63d0\u4f9b\u652f\u6301\uff0c\u901a\u8fc7\u5c06\u590d\u6742\u5bfc\u6570\u62c6\u5206\u4e3a\u7b80\u5355\u5bfc\u6570\uff0c\u7a0d\u540e\u7ec4\u5408\u7b80\u5355\u5bfc\u6570\uff0c\u4ece\u800c\u8ba1\u7b97\u590d\u6742\u5bfc\u6570\u3002Autograd \u81ea\u52a8\u8ba1\u7b97\u5e76\u8bb0\u5f55\u8ba1\u7b97\u56fe\u4e2d\u6267\u884c\u7684\u6240\u6709\u64cd\u4f5c\u7684\u68af\u5ea6\uff0c\u5927\u5927\u51cf\u5c11\u53cd\u5411\u4f20\u64ad\u5de5\u4f5c\u3002<\/p>\n\n\n\n<p>\u5f53\u8fd0\u884c\u5df2\u8bad\u7ec3\u6a21\u578b\u65f6\uff0cautograd \u5c31\u6ca1\u6709\u5fc5\u8981\u4f7f\u7528\u8ba1\u7b97\u8d44\u6e90\u3002\u9644\u52a0\u4efb\u4f55 require_grad=False \u7684\u5f20\u91cf\u64cd\u4f5c\u5c06\u6307\u793a PyTorch \u505c\u6b62\u8ddf\u8e2a\u68af\u5ea6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"%E6%95%B0%E6%8D%AE%E9%9B%86%E5%92%8C%E6%95%B0%E6%8D%AE%E5%8A%A0%E8%BD%BD%E5%99%A8\">\u6570\u636e\u96c6\u548c\u6570\u636e\u52a0\u8f7d\u5668<\/h2>\n\n\n\n<p>\u4f7f\u7528\u8bad\u7ec3\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u6240\u9700\u7684\u5927\u578b\u6570\u636e\u96c6\u53ef\u80fd\u975e\u5e38\u590d\u6742\u4e14\u8ba1\u7b97\u8981\u6c42\u8f83\u9ad8\u3002PyTorch \u63d0\u4f9b\u4e24\u79cd\u6570\u636e\u539f\u8bed\uff1a\u6570\u636e\u96c6\u548c\u6570\u636e\u52a0\u8f7d\u5668\uff0c\u4ee5\u65b9\u4fbf\u6570\u636e\u52a0\u8f7d\u5e76\u4f7f\u4ee3\u7801\u66f4\u6613\u4e8e\u9605\u8bfb\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>torch.utils.data.Dataset \u5b58\u50a8\u6570\u636e\u6837\u672c\u53ca\u5bf9\u5e94\u6807\u7b7e<\/li>\n\n\n\n<li>torch.utils.data.Dataloader \u5728\u6570\u636e\u96c6\u5468\u56f4\u5305\u88c5\u4e86\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff08\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u64cd\u4f5c\u7684\u5bf9\u8c61\uff09\uff0c\u4ee5\u4fbf\u8f7b\u677e\u8bbf\u95ee\u6837\u672c<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"%E5%AE%89%E8%A3%85%E5%92%8C%E8%BF%90%E8%A1%8C-pytorch\">\u5b89\u88c5\u548c\u8fd0\u884c PyTorch<\/h1>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>PyTorch \u53ef\u4ee5\u5728\u672c\u5730\u7cfb\u7edf\u548c\u4e91\u5e73\u53f0\u4e0a\u4ee5\u4e0d\u540c\u7684\u914d\u7f6e\u5b89\u88c5\u548c\u8fd0\u884c\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728\u672c\u5730\u8fd0\u884c PyTorch \u9700\u8981\u4f7f\u7528 Anaconda \u8f6f\u4ef6\u5305\u7ba1\u7406\u5668\u3001Homebrew \u6216 Python \u7f51\u7ad9\u6765\u5b89\u88c5 Python\u3002 \u53ef\u4ee5\u901a\u8fc7 Anaconda\u4f7f\u7528\u547d\u4ee4 conda install pytorch torchvision -c pytorch\uff0c\u6216\u8005\u901a\u8fc7 pip \u4f7f\u7528\u547d\u4ee4 pip3 install torch torchvision\uff0c\u5728\u672c\u5730\u5b89\u88c5 PyTorch\u3002\u5efa\u8bae\u4f7f\u7528 Anaconda\uff0c\u56e0\u4e3a\u5b83\u5728\u4e00\u4e2a\u6c99\u76d2\u5b89\u88c5\u4e2d\u63d0\u4f9b\u4e86\u6240\u6709 PyTorch \u4f9d\u8d56\u9879\uff08\u5305\u62ec Python\uff09\u3002<\/p>\n\n\n\n<p>PyTorch \u8fd8\u53ef\u5728\u4e91\u5e73\u53f0\u4e0a\u8fd0\u884c\uff0c\u5305\u62ec Amazon Web Services\u3001Google Cloud \u548c Microsoft Azure\u3002 \u5efa\u8bae\uff08\u4f46\u4e0d\u662f\u5fc5\u9700\uff09\u4f7f\u7528 NVIDIA GPU\uff0c\u4ee5\u4fbf\u5229\u7528 PyTorch \u5bf9 CUDA\uff08\u7edf\u4e00\u8ba1\u7b97\u8bbe\u5907\u67b6\u6784\uff09\u7684\u652f\u6301\uff0c\u8be5\u67b6\u6784\u63d0\u4f9b\u7684\u8bad\u7ec3\u548c\u6027\u80fd\u8fdc\u8d85 CPU\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ec0\u4e48\u662f PyTorch\uff1f PyTorch \u662f\u4e00\u4e2a\u57fa\u4e8e\u8f6f\u4ef6\u7684\u5f00\u6e90\u6df1\u5ea6\u5b66\u4e60\u6846\u67b6\uff0c\u7528\u4e8e\u6784\u5efa\u795e\u7ecf\u7f51\u7edc\uff0c\u5c06 Torch  &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/thereisno.top\/?p=2259\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201c\u5f00\u6e90\u6df1\u5ea6\u5b66\u4e60\u6846\u67b6PyTorch\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[246],"tags":[170,245,166],"class_list":["post-2259","post","type-post","status-publish","format-standard","hentry","category-ai","tag-ai","tag-245","tag-166"],"_links":{"self":[{"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/posts\/2259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thereisno.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2259"}],"version-history":[{"count":1,"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/posts\/2259\/revisions"}],"predecessor-version":[{"id":2260,"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/posts\/2259\/revisions\/2260"}],"wp:attachment":[{"href":"https:\/\/thereisno.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thereisno.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thereisno.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}