Figure 7
From: An air quality index prediction model based on CNN-ILSTM

\({(1-\mathrm{tanh}\left(\sigma (\mathrm{y})\right)}^{2})\sigma {^{\prime}}(\mathrm{y})\) Function.
From: An air quality index prediction model based on CNN-ILSTM

\({(1-\mathrm{tanh}\left(\sigma (\mathrm{y})\right)}^{2})\sigma {^{\prime}}(\mathrm{y})\) Function.