Title
A hybrid deep convolutional and recurrent neural network for complex activity recognition using multimodal sensors.
Abstract
Complex activities refer to users' activities performed in their daily lives (e.g., having dinner, shopping, etc.). Complex activity recognition is a valuable issue in wearable and mobile computing. The time-series sensory data from multimodal sensors have sophisticated relationships to characterize the complex activities (e.g., intra-sensor relationships, inter-sensor relationships, and temporal relationships), making the traditional methods based on manually designed features ineffective. To this end, we propose HConvRNN, an end-to-end deep neural network for complex activity recognition using multimodal sensors by integrating convolutional neural network (CNN) and recurrent neural network (RNN). To be specific, it uses a hierarchical CNN to exploit the intra-sensor relationships among similar sensors and merge intra-sensor relationships of different sensor modalities into inter-sensor relationships, and uses a RNN to model the temporal relationships of signal dynamics. The experiments based on real-world datasets show that HConvRNN outperforms the existing complex activity recognition methods.
Year
DOI
Venue
2019
10.1016/j.neucom.2019.06.051
Neurocomputing
Keywords
Field
DocType
Complex activity,Multimodal sensors,Convolutional neural network,Recurrent neural network
Modalities,Mobile computing,Activity recognition,Wearable computer,Convolutional neural network,Recurrent neural network,Exploit,Artificial intelligence,Artificial neural network,Machine learning,Mathematics
Journal
Volume
ISSN
Citations 
362
0925-2312
2
PageRank 
References 
Authors
0.35
0
3
Name
Order
Citations
PageRank
Mingqi Lv1183.81
Wei Xu232938.14
Tieming Chen3295.11