deep learning Deep learning 7 convolutional neural network 5 machine learning 5 Convolutional neural network 4 Convolutional neural networks 4 Network security 3 Security systems 3 ambient-assisted living 3 article 3 artificial intelligence 3 feature selection 3 human 3 human action recognition 3 kinect 3 neural networks 3 visual sensor-based 3 Aged 2 Ambient Intelligence 2 Artificial Intelligence 2 Background clutter 2 Convolution 2 Deep neural networks 2 Frame sampling random erasure 2 Global feature 2 Human Activities 2 Humans 2 Learning methods 2 Mutual information temporal weight aggregation 2 Mutual informations 2