![Sensors | Free Full-Text | Authentication of Smartphone Users Based on Activity Recognition and Mobile Sensing Sensors | Free Full-Text | Authentication of Smartphone Users Based on Activity Recognition and Mobile Sensing](https://pub.mdpi-res.com/sensors/sensors-17-02043/article_deploy/html/images/sensors-17-02043-g001.png?1569533809)
Sensors | Free Full-Text | Authentication of Smartphone Users Based on Activity Recognition and Mobile Sensing
![A systematic review of smartphone-based human activity recognition methods for health research | npj Digital Medicine A systematic review of smartphone-based human activity recognition methods for health research | npj Digital Medicine](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41746-021-00514-4/MediaObjects/41746_2021_514_Fig6_HTML.png)
A systematic review of smartphone-based human activity recognition methods for health research | npj Digital Medicine
![Electronics | Free Full-Text | Smartphone Sensor Based Indoor Positioning: Current Status, Opportunities, and Future Challenges Electronics | Free Full-Text | Smartphone Sensor Based Indoor Positioning: Current Status, Opportunities, and Future Challenges](https://www.mdpi.com/electronics/electronics-09-00891/article_deploy/html/images/electronics-09-00891-g001.png)
Electronics | Free Full-Text | Smartphone Sensor Based Indoor Positioning: Current Status, Opportunities, and Future Challenges
![How accelerometer works? | Working of accelerometer in a smartphone | MEMS inside accelerometer - YouTube How accelerometer works? | Working of accelerometer in a smartphone | MEMS inside accelerometer - YouTube](https://i.ytimg.com/vi/T_iXLNkkjFo/maxresdefault.jpg)
How accelerometer works? | Working of accelerometer in a smartphone | MEMS inside accelerometer - YouTube
![Accelerometer data collected with a minimum set of wearable sensors from subjects with Parkinson's disease | Scientific Data Accelerometer data collected with a minimum set of wearable sensors from subjects with Parkinson's disease | Scientific Data](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41597-021-00830-0/MediaObjects/41597_2021_830_Fig2_HTML.png)