Inference code

Creating Labeled UWAR Files

uwar_combine takes several .uwar files or a directory containing a single session and creates 1 contiguous UWAR file. It can also take a text label file and insert the labels as TAG items in the combined UWAR stream. Label files are of the form timestamp (in seconds), newline, string label:

0.000000
null
703.125000
null
884.375000
walk2
1000.000000
walk3
1074.218750
walk3
1250.000000
walk4
1601.562500
run1
1777.343750
walk1

Example Command: <bash>uwar_combine -scandir "001 MSB lab 1 - 100907/" -labelFile "001 MSB lab 1 - 100907/sub1-lab1-ms_resampled.txt" -out ./src_data/glen_sub001_lab1_combined.uwar</bash>

Creating ARFF Training Features files

You can run the inference engine without a classifier, specifying just the features (in the .XML configuration file) you would like to compute. When you use the -label command it the inference engine will read the TAG objects from the UWAR stream as labels for ground truth. Note that you must have a label in the UWAR stream every ~2137 seconds otherwise the inference engine will crash. Example Command: <bash>inference -xml generateFeaturesForTraining.xml -uwarin ./src_data/glen_sub001_lab1_combined.uwar -arffout ./trainingFeatures/glen_sub001_lab1_features.arff -label -silent></bash>