Table 4 Summary of used variables.
From: Exploring the efficacy of GRU model in classifying the signal to noise ratio of microgrid model
Variable | Description |
|---|---|
P(\(n\)) | The probability density function for the noise (\(n\)) |
\(\pi \) | Pi which is approximately equal to 3.14159 |
\({\sigma }^{2}\) | The variance of the noise |
\(e\) | Euler’s number |
\({SNR}_{linear}\) | The Signal-to-Noise Ratio in linear scale |
\({P}_{signal}\) | The power of the signal |
\({P}_{noise}\) | The power of noise |
\({SNR}_{dB}\) | The SNR is converted to decibels dB |
\(log\) | Logarithm |
CSV | Comma-separated values file |
filename | String variable used to specify the path of the CSV file |
PORT | String variable used to assign the port number for communication |
BAUD_RATE | The maximum rate for transmitting bits per second |
END_TIMEOUT | The timeout for sending data |
RECV_TIMEOUT | The waiting time in seconds for receiving data |
\({z}_{i}\) | The logit for class \(i\) |
\(N\) | The total number of classes |
\({r}_{t}\) | The reset gate at time \(t\) |
\(\upsigma \) | The sigmoid function |
\({W}_{r}\) | The weight associated with the rest gate |
\({h}_{t-1}\) | The output of the previous hidden state at time \(t-1\) |
\({x}_{t}\) | The input \(x\) at the current time \(t\) |
\({b}_{r}\) | The bias term of rest gate |
\({z}_{t}\) | The update gate at time t |
\({W}_{z}\) | The weight associated with the update gate |
\({b}_{z}\) | The bias term of the update gate |
\({\overline{h} }_{t}\) | The candidate hidden state at time t |
\({W}_{h}\) | The weight associated to the candidate hidden state |
\({b}_{h}\) | The bias term of the candidate hidden state |
\({h}_{t}\) | The final activation at time t |
