Android-活动识别缺乏准确性

Question

I'm testing the Android ActivityRecognition API and I used this tutorial .

In order to get more accuracy I'm checking the confidence, the common limit I saw is that the confidence must be >= 75.

My application is running on the background and the activity recognition is updated for some interval of time.

But I've noticed some errors:

1. When the application is on background and I'm using another application like whatsapp or facebook messenger It detects "IN_VEHICLE"

2. When I'm actually driving it takes something like 10 minutes to detect I'm driving (I made it to notify the current activity me using Text to speech).

I tried to change the interval parameter value of requestActivityUpdates but it didn't improve the accuracy..

Any suggestion on how to improve the accuracy?

Answer 1

OK. So for anyone who encountered this problem..

I had an activity recognition using a background service so when the application is on bacgkround it should detect the user activity such : WALK, ON_VEHIClE and etc. But I noticed that when I launched another application and was typing a message, the movements of the device were translated into "ON_VEHICLE" by the activity recognition.