Efficient Deep Learning Models for DGA Domain Detection

Table 2

Comparison of deep learning models used in existing and proposed approaches.

Target features	Existing approaches			Our approaches
	CNN [8, 9]	LSTM [6, 7, 10, 12]	LSTM with attention [11]	BiLSTM with attention	Ensemble (CNN + BiLSTM)
Local spatial information	◯	✕	✕	✕	◯
Global spatial information	✕	◯	◯	◯	◯
Weighted spatial information	✕	✕	◯	◯	◯
Forward temporal information	✕	◯	◯	◯	◯
Backward temporal information	✕	✕	✕	◯	◯