Example:
"hhar_20_120": {
"sr": 20, sampling rate
"seq_len": 120, window size or sequence length
"dimension": 6, input features, 6 represents accelerometer and gyroscope
"activity_label_index": 2, activity label position in the label.npy
"activity_label_size": 6, number of activities
"activity_label": [
"bike", "sit", "downstairs", "upstairs", "stand", "walk"
], names of activities
"user_label_index": 0, user label position in the label.npy
"user_label_size": 9, number of users
"model_label_index": 1, model label position in the label.npy
"model_label_size": 3, number of models
"size": 9166, sample size
}