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System has not been booted with systemd as init system 阅读全文
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“:” 是指令 “v-bind”的缩写，“@”是指令“v-on”的缩写；“.”是修饰符 阅读全文
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Everyone feels a little happier when the sun shines brightly over the city and everyone feels a little bit down when you have to cycle through heavy r 阅读全文
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k折验证中k值对偏差和方差的影响？ 总共n个数据，假设为2，每次训练集大小为n/2，每次训练的数据量会偏小，取平均值后，由于每次训练的数据量比较小，最终学习输出的模型会不能很好的代表样本的分布（欠拟合），换句话说就是偏差大。或者这么理解，由于k折交叉验证是使用k次训练的结果取平均值来进行预测的，如果 阅读全文
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Humans impact the environment in several ways. Common effects include decreased water quality, increased pollution and greenhouse gas emissions, deple 阅读全文
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The Slow Food Movement, started in Italy almost two decades ago to counter the fast food movement. Everything that fast food is, Slow Food isn’t.If yo 阅读全文
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Esports also known as electronic sports, is a form of sport competition using video games.[1] Esports often takes the form of organized, multiplayer v 阅读全文
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A massive open online course (MOOC /muːk/) is an online course aimed at unlimited participation and open access via the web.[1] In addition to traditi 阅读全文
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Online learning involves courses offered by postsecondary institutions that are 100% virtual, excluding massively open online courses (MOOCs). Online 阅读全文
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恢复内容开始 The tf.data.Dataset API supports writing descriptive and efficient input pipelines. Dataset usage follows a common pattern: Create a source dat 阅读全文