By Federico Montesino Pouzols
As different advanced platforms in social and ordinary sciences in addition to in
engineering, the web is difficult to appreciate from a technical point
of view. Packet switched networks defy analytical modeling. The
Internet is an exceptional and not easy case due to its fast
development, unheard of heterogeneity and the inherent lack of
measurement and tracking mechanisms in its middle conception.
This monograph bargains with functions of computational intelligence
methods, with an emphasis on fuzzy ideas, to a couple of present concerns in size, research and regulate of site visitors in the
Internet. First, the center development blocks of net technology and
other similar networking facets are brought. Then, information mining and keep watch over difficulties are addressed. within the firstclass concerns are
considered: predictive modeling of site visitors load to boot as
summarization of site visitors circulate measurements. the second one category, keep an eye on, contains energetic queue administration schemes for web routers in addition to window dependent end-to-end price and congestion keep an eye on. the sensible implementation of a few of the bushy inference platforms proposed here's additionally addressed. whereas a few theoretical advancements are defined, we prefer vast overview of types utilizing real-world info through simulation and experiments.
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Extra resources for Mining and Control of Network Traffic by Computational Intelligence
Priority. Resilience (against spontaneous connection termination due to internal problems of congestion). Negotiation mechanisms are considered for all the parameters above during the transport connection establishment phase. Objective, acceptable and minimum values can be specified for the whole set of parameters. However, QoS support is far from being complete and deployed in the real world. For instance, ATM networks only supported two QoS parameters: propagation delay and transfer rate. It is only since a few years that the required technolgoies are available in routing equipment.
This value is progressively incremented in an additive manner until overload is detected. Since additions are performed each time acknowledgment packets from the receiver arrive at the sender, this scheme results in an increase exponential with time. • Multiplicative decrease. In standard TCP, packet loss is taken as a sign of congestion. When packet loss is detected, the transfer rate is decreased exponentially (commonly by a factor of 2) and the increase process is initiated again. This scheme guarantees cooperation among competing TCP end-to-end flows.
Last value (or naive), where the last observed value is taken as prediction. • BM(N): average over a history window of optimal size N. The results that can be expected from these techniques are clearly not useful for dealing with traffic load. The next natural step is to use traditional autoregressive models. That is, Box-Jenkins and derived models, both for short-memory and longmemory stochastic models, including AR, MA, ARMA and ARIMA-like models. In what follows, we overview a set of models that have been applied to network traffic as well as models that will be applied in the next chapter of this monograph.