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Linux下查看机器信息的方法Neofetchinstall#Arch/Manjarosudo pacman -S neofetch#ubuntusudo apt install neofetch useneofetch 阅读全文
posted @ 2019-06-24 17:55
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Neural NetworksThe ‘one learning algorithm’ hypothesisNeuron-rewiring experimentsModel RepresentationDefineSigmoid(logistic) activation functionbias unit input layeroutput layerhidden layer\(a_i^{(j)}... 阅读全文
posted @ 2019-06-02 19:09
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Regularization for Linear Regression and Logistic Regression Define Addressing over-fitting Manually select which features to keep. Model selection al 阅读全文
posted @ 2019-06-02 19:07
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Binary ClassificationDefineSigmoid Function Logistic Function\[ h_\theta(x) = g(\theta^Tx) \]\[ z = \theta^Tx \]\[ 0 \theta^Tx = 0\)Cost Function\[J(\theta) = \dfrac{1}{m} \sum_{i=1}^m \mathrm{Cost}(... 阅读全文
posted @ 2019-06-02 19:06
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h(x)\[\begin{align*}h_\theta(x) =\begin{bmatrix}\theta_0 \hspace{2em} \theta_1 \hspace{2em} ... \hspace{2em} \theta_n\end{bmatrix}\begin{bmatrix}x_0 \newline x_1 \newline \vdots \newline x_n\end{bmatr... 阅读全文
posted @ 2019-06-02 19:06
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Symbols:m = Number of training examplesx’s = “input” variable /featuresy’s = “output” variable / “target” variaable(x, y) = one training example\((x^{(i)}, y^{(i)})\) = \(i_{th}\) training exampleh(x)... 阅读全文
posted @ 2019-06-02 19:05
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Machine Learning definition Arthur Samuel(1959). Machine Learning: Field of study that gives computers the ability to learn without being explicitly p 阅读全文
posted @ 2019-05-31 23:55
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virsh管理kvm虚拟机list Prints information about existing domains. If no options are specified it prints out information about running domains.virsh list[--inactive | --all][--managed-save][--title] { [--t... 阅读全文
posted @ 2019-05-31 23:50
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config devices on Linux use xinputinstall#Manjarosudo pacman -S xorg-xinputuselist all the input devicesxinput listoutput:[jarvis@jarvis-pc ~]$ xinput list⎡ Virtual core pointer ... 阅读全文
posted @ 2019-05-31 23:49
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install network utils on LinuxArch/Manjarosudo pacman -S net-tools dnsutils inetutils iproute2 阅读全文
posted @ 2019-05-31 23:47
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