This is the download site for ALKAN dataset: a large-scale activity data with mobile sensor devices obtained from iPodTouch with accelerometers. We gathered over 35,000 activity data points from more than 200 people over approximately 13 months (the data includes more than that).
You can get the files by month from the files tab or here:
- [ISWC2011] Yuichi Hattori, Sozo Inoue, and Go Hirakawa, "A Large Scale Gathering System for Activity Data with Mobile Sensors," 15th Annual International Symposium on Wearable Computers, 97–100, 2011.
- [JIP2011] Yuichi Hattori, Sozo Inoue, "A Large Scale Gathering System for Activity Data using Mobile Devices", Journal of Information Processing, Vol. 20, No. 1, pp. 177-184, September 12, 2011.
The directory name is YYYYMMDDhhmmss_(userID)_(hash), but old ALKAN data is YYYYMMDDhhmmss_(userID).
Data directory includes info.xml, "acc" and "gyro". "gyro" is new client only.
Each info.xml includes user data, action data,times and device data.
"acc" includes 1.csv. 1.csv is accelerometer data.
"gyro" includes 1.csv. 1.csv is gyro data.
XML structure¶All data have info.xml.
info.xml includes user data, action data,times and device data.
- Times are client clock time, not server clock time.
<?xml version="1.0" encoding="UTF-8" ?> <Responses> <User> <ID>User ID</ID> </User> <Action> <ID>Action ID</ID> <Name>Action name(walk, running,...)</Name> </Action> <Times> <Start>Start time(YYYY-MM-DD hh:mm:ss)</Start> <Finish>Finish time(YYYY-MM-DD hh:mm:ss)</Finish> </Times> <Devices> <Device> <Model>Model name(i Pod Touch, iPhone,...)</Model> <Client>Client name</Client> <Position> <ID>Position ID</ID> <Name>Position name(hand bag, left hand,...)</Name> </Position> <Sensors> <Sensor> <Type>Sensor type(acc or gyro)</Type> </Sensor> ... </Sensors> </Device> </Devices> </Responses>
The first line is header, but old data haven't header.
time(sec), acc_x, acc_y,acc_z 0.420,0.12679,-0.32602,-0.88750 0.421,0.09056,-0.32602,-0.97806 0.428,0.00000,-0.27168,-0.79694 0.429,0.19923,-0.32602,-1.01428 .....
New ALAKAN2 client can collect gyro data.
First line is header. All gyro data have header.
time(sec), gyro_x, gyro_y,gyro_z 0.420,0.12679,-0.32602,-0.88750 0.421,0.09056,-0.32602,-0.97806 0.428,0.00000,-0.27168,-0.79694 0.429,0.19923,-0.32602,-1.01428 .....
- Homepage: http://sozolab.jp