Original dataset
Inside data/original
folder you will find a list of .csv
files, all the files have similar filename pattern, used to distinguish different sessions, sensor location and dataset type.
For example, file session1_DAK.raw.csv
represents the raw 3-axis accelerometer data file for session 1 on dominant ankle. And file session2.annotation.csv
represents the annotation file for session 2.
Note that there is only one annotation file for each session so sensor_location
is omitted.
There are four raw accelerometer data files for each session at four sensor locations,
dominant wrist (DW)
dominant ankle (DAK)
nondominant wrist (NDW)
dominant arm (DAR)
Note that for the experiments run in the paper, only wrist accelerometers are used, please refer to the paper for detailed explanation.
Raw sensor data format
The accelerometer we used is Actigraph GT3X, which has a dynamic range of ±4g and stores value using 10 bits, it’s a 3-axis linear accelerometer. It stores in csv
format, with the first column being the unix timestamp, and column 2 to 4 for x, y and z axis.
There is no header row. Data has already been converted to -4g to +4g from voltage.
Annotation file format
Annotation file has standard csv format with header describes the meaning of each column.
Last updated