A composition of and a method of making high performance hollow fiber membranes is described. When creating the strong classifier, action classification is performed by measuring similarities between features within motion patterns. The highest temperatures in the selective growing process and other discretionary processes after the epitaxial growing process are lower than that in the epitaxial growing process prior to the selective growing process. The hysteretic comparator may generate a comparator output based on the comparison of the output of the converter to the reference signal and the comparison of the load ground to the reference signal ground. The bill is presented in a user interface which provides a line-by-line itemization of the bill, along with a predefined dispute reasons which the consumer can check to challenge particular items on the bill.