One embodiment of the present invention provides a system that classifies elements in a structured data stream. A level of authentication determination may additionallyalternatively include at least determining a behavioral fingerprint via establishing a statistical predictability of one or more future actions of an authorized user of a computing device. The gas blender controls the mixing to produce the mixed gas having a predetermined mixture setpoint, generally an oxygen percentage, and a predetermined control setpoint, generally a pressure setpoint or flow rate setpoint. VLIWs are composed in the VLIW memory by loading and concatenating SIWs in each address, or entry. The front guiding element is attached from above onto the carriage and is arrested on the carriage at right angles to the direction of attachment, and the rear guiding element is attached from below onto the carriage in an opening of the carriage and is arrested on the carriage at right angles to the direction of attachment. In particular, the centralized controller manages end-to-end network path setup that provisions a path at both the transport network layer and the service network layer.