mailsys_differential_feature_extraction/archive/kpi.txt

q1: x and y > 0
q2: x > 0 and y < 0
q3: x < 0 and y < 0
q4: x < 0 and y > 0

q1_uptime: 
q2_uptime:
q3_uptime:
q4_uptime:
q1_speed:
q1_speed:
q1_speed:
q1_speed:
q1_variance:
q1_variance:
q1_variance:
q1_variance:
q2_variance,
q3_variance,
q4_variance,
f01~f20_dis,
f01~f20_rate,
f01~f20_stroke