Mobile wireless devices, such as cell phones, PDA's, music players, notebook computers, are becoming increasingly powerful and sophisticated. Not only are their computing power and communication abilities expanding, but they now routinely incorporate a variety of sensors, including accelerometers, microphones, cameras, light sensors, and proximity sensors. Millions of people now carry these sensor-enabled mobile devices, which can either transmit the sensor data wirelessly to a server for remote processing or can process the data locally. This situation provides dramatic new opportunities for data mining and also makes it possible to deploy intelligent data mining applications on a scale not previously imaginable. This is where our WISDM (WIreless Sensor Data Mining) Lab comes in.
In this lab we collect and mine sensor data from these wireless devices. The scope of this project is enormous and there will be many opportunities for us to make an impact on how these smart mobile devices are used. Our initial focus was mainly on mining the accelerometer data, for tasks such as biometric identification and activity recognition (summarized below), but while we are continuing on in that area, we are now also actively looking into mining other sensor data, such as GPS data. Our initial platform will be based on the phones running Google's Android operating system. Our preliminary work, which was based on a research oriented mobile device from Sun Microsystems, showed that we could accurately and reliably:
This work overlaps with a related project that is jointly being conducted with Dr. Warren Tryon from the Psychology department. While the WISDM project is quite general and spans all potential data mining applications of all forms of wireless sensor data, the project with Dr. Tryon focuses mainly on the accelerometer data and health care applications, leveraging Dr. Tryon's work on actigraphy.
Actitracker will be the first of the applications that we are working on that we hope to put into production.
It will allow researchers and everyday users to track their activities over time and see if they are receiving sufficient
physical activities to maintain proper health. By using the raw acceleromter values from an Android smartphone
along with a variety of other sensors, Actitracker will be able to provide real time results and detailed activity history
on smartphones running Android 2.2 and up.
For more information, please visit the Actitracker website.
The WISDM Lab is constantly expanding into new sectors in mobile application development. We are currently working on a variety of projects and expanding upon our original scope to encompass areas such as healthcare, architectural studies and urban analytics while also continuing and improving upon our soft biometric and biometric research. As more details of these projects become public, this page will be updated to reflect the work that we have done.