{"id":1080,"date":"2024-07-18T00:41:37","date_gmt":"2024-07-17T16:41:37","guid":{"rendered":"http:\/\/tobykskgd.life\/?p=1080"},"modified":"2024-11-14T22:26:09","modified_gmt":"2024-11-14T14:26:09","slug":"52","status":"publish","type":"post","link":"https:\/\/tobykskgd.life\/index.php\/52\/","title":{"rendered":"\u5434\u6069\u8fbe\u673a\u5668\u5b66\u4e60\u7b14\u8bb0EP5"},"content":{"rendered":"\n

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\"\"<\/div><\/figure>\n\n\n\n

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\n\n\n\n

\u795e\u7ecf\u5143\u548c\u5927\u8111<\/h2>\n\n\n\n

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\"\"<\/div><\/figure>\n\n\n\n

\u9700\u6c42\u9884\u6d4b<\/h2>\n\n\n\n

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\"\"<\/div><\/figure>\n\n\n\n

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\"\"<\/div><\/figure>\n\n\n\n

\u9690\u85cf\u5c42\u53ef\u4ee5\u6709\u591a\u4e2a<\/h2>\n\n\n\n

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\"\"<\/div><\/figure>\n\n\n\n

\u795e\u7ecf\u7f51\u7edc\u5728\u56fe\u50cf\u4e2d\u7684\u5e94\u7528<\/h2>\n\n\n\n

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\"\"<\/div><\/figure>\n\n\n\n

\u795e\u7ecf\u7f51\u7edc\u4e2d\u7684\u5c42<\/h2>\n\n\n\n

\u6bcf\u4e00\u4e2a\u795e\u7ecf\u5143\u4e2d\u90fd\u662f\u4e00\u4e2a\u51fd\u6570\u6216\u8005\u8bf4\u6a21\u578b\uff0c\u8fd9\u91cc\u4ee5logistic\u56de\u5f52\u4e3a\u4f8b\u3002<\/p>\n\n\n\n

\u5148\u7ed9\u9690\u85cf\u5c42\u4e2d\u7684\u53c2\u6570\u505a\u4e2a\u5b9a\u4e49\uff0c\u5728\u53c2\u6570\u524d\u9762\u52a0\u89d2\u6807[n]\uff0c\u8bf4\u660e\u8fd9\u4e2a\u53c2\u6570\u662f\u6765\u81ea\u7b2cn\u4e2a\u9690\u85cf\u5c42\u7684\u3002<\/p>\n\n\n\n

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\"\"<\/div><\/figure>\n\n\n\n

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\"\"<\/div><\/figure>\n\n\n\n

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\u8fd9\u91cc\u8bf4\u660e\u4e2d\u95f4\u7684\u9690\u85cf\u5c42\u7684\u6fc0\u6d3b\u51fd\u6570a\u7684\u8ba1\u7b97\u65b9\u5f0f\uff0c\u5c31\u662f\u7528\u5f53\u524d\u5c42\u7684\u6743\u503c\u5411\u91cfw\u548c\u524d\u4e00\u5c42\u7684\u8f93\u51fa\u5411\u91cfa\u70b9\u4e58\uff0c\u7136\u540e\u52a0\u4e0a\u5f53\u524d\u5c42\u7684b\u503c\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u63a8\u7406\uff1a\u505a\u51fa\u9884\u6d4b\uff08\u524d\u5411\u4f20\u64ad\uff09<\/h2>\n\n\n\n

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\u4e00\u822c\u6765\u8bf4\uff0c\u8d8a\u63a5\u8fd1\u8f93\u51fa\u5c42\uff0c\u9690\u85cf\u5c42\u4e2d\u7684\u795e\u7ecf\u5143\u5c31\u8d8a\u5c11\u3002<\/p>\n\n\n\n

\u524d\u5411\u4f20\u64ad\u5c31\u662f\u63a8\u7406\u7684\u8fc7\u7a0b\u3002\u4e5f\u5c31\u662f\u5982\u679c\u6709\u522b\u4eba\u8bad\u7ec3\u597d\u7684\u795e\u7ecf\u7f51\u7edc\u548c\u5bf9\u5e94\u7684\u6743\u91cd\u7b49\u53c2\u6570\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u62ff\u6765\u63a8\u7406\u81ea\u5df1\u7684\u6570\u636e\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5229\u7528TensorFlow\u6784\u5efa\u6a21\u578b<\/h2>\n\n\n\n

\u4e0b\u9762\u662f\u7528tensorflow\u6846\u67b6\u6784\u5efa\u6a21\u578b\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n\n\n\n

\u6784\u5efa\u4e00\u4e2a\u9690\u85cf\u5c42\uff1a<\/p>\n\n\n\n

x = np.array([[200.0, 17.0]])\nlayer_1 = Dense(units=3, activation='sigmoid')\na1 = layer_1(x)<\/code><\/pre>\n\n\n\n
\u518d\u52a0\u4e00\u4e2a\u9690\u85cf\u5c42\uff1a<\/p>\n\n\n\n
layer_2 = Dense(units=1, activation='sigmoid')\na2 = layer_2(a1)<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u4e0b\u9762\u662f\u5728\u795e\u7ecf\u7f51\u7edc\u540e\u9762\u52a0\u4e0a\u6761\u4ef6\u5224\u65ad\u7684\u4ee3\u7801\uff1a<\/p>\n\n\n\n
yhat = np.zeros_like(predictions)\nfor i in range(len(predictions)):\n    if predictions[i] >= 0.5:\n        yhat[i] = 1\n    else:\n        yhat[i] = 0\nprint(f\"decisions = \\n{yhat}\")<\/code><\/pre>\n\n\n\n
TensorFlow\u4e2d\u7684\u6570\u636e<\/h2>\n\n\n\n
\u4e0b\u56fe\u662f\u5173\u4e8eTensorFlow\u4e2d\u7684\u6570\u636e\u5199\u6cd5\uff0c\u4e0b\u56fe\u662fnumpy\u7684\u77e9\u9635\u5199\u6cd5\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
TensorFlow\u4e2d\u4f7f\u7528\u5f20\u91cf\uff0c\u5f20\u91cf\u53ef\u4ee5\u7406\u89e3\u4e3a\u66f4\u4e00\u822c\u7684\u77e9\u9635\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"
\u3010\u795e\u7ecf\u7f51\u7edc\u4e0eTensorFlow\u3011\u5434\u6069\u8fbe\u673a\u5668\u5b66\u4e60\u7b14\u8bb0EP5\uff08P42-P50\uff09 \u4ece\u4eca\u5929\u5f00\u59cb\u6211\u5c06\u5b66\u4e60\u5434\u6069\u8fbe\u6559\u6388\u7684\u673a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[3,7],"class_list":["post-1080","post","type-post","status-publish","format-standard","hentry","category-wedjqxxbj","tag-xxbj","tag-jjxx"],"_links":{"self":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/1080","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/comments?post=1080"}],"version-history":[{"count":6,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/1080\/revisions"}],"predecessor-version":[{"id":1889,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/1080\/revisions\/1889"}],"wp:attachment":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/media?parent=1080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/categories?post=1080"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/tags?post=1080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}