"Caching is 2percentt of the complexity of content delivery," said Daniel M. Lewin, who was a graduate student at the Massachusetts Institute of Technology when he co-founded Akamai in 1998 with Tom Leighton, a professor of applied mathematics there.
I already mentioned the vastness and complexity of content.
The inherent complexity of content-based routing makes message loss detection and recovery, and network state recovery extremely complicated.
To corroborate the classification, cluster analysis was also conducted to identify major clusters of learning resources along two dimensions - complexity of content and ease of use.
Note that the performance of a video encoder in terms of computational complexity and bitrate depends on both the encoding configuration and temporal and spatial complexity of content.
In fact, we are not aware of any study evaluating the extent to which the ISCED criteria do capture complexity of content.
The current ISCED criteria seem, on their own, incomplete to well differentiate educational programs by their degree of complexity of content.
Obviously, these criteria exclusively refer to the structure of educational systems, not to the complexity of content and related demand placed on learners or even skill outcomes.
The complexity of content of an educational program should theoretically be quite strongly related to the average literacy skills that completers of the program show, because literacy skills highly correlate with other types of general skills.
The ISCED classification criteria (UNESCO Institute for Statistics 2006), which are admittedly proxy-criteria due to lacking direct indicators, may be ill-suited to capture the actual complexity of content of educational programs, the concept ISCED intends to measure.
Our research however suggests that in terms of literacy, the complexity of content of vocational programs may be substantially lower, so they more strongly draw in participants from the lower end of the skill distribution at the completion of the previous level, especially in countries with highly occupationally specific vocational training.
