Przeglądanie według Temat "temporal patterns"

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Classifiers for Behavioral Patterns Identification Induced from Huge Temporal Data
(Humboldt University, 2014) Bazan, Jan G.; Szpyrka, Marcin; Szczur, Adam; Dydo, Łukasz; Wojtowicz, Hubert
A new method of constructing classifiers from huge volume of temporal data is proposed in the paper. The novelty of introduced method lies in a multi-stage approach to constructing hierarchical classifiers that combines process mining, feature extraction based on temporal patterns and constructing classifiers based on a decision tree. Such an approach seems to be practical when dealing with huge volume of temporal data. As a proof of concept a system has been constructed for packet-based network traffic anomaly detection, where anomalies are represented by spatio-temporal complex concepts and called by behavioral patterns. Hierarchical classifiers constructed with the new approach turned out to be better than ”flat” classifiers based directly on captured network traffic data.
Extracting of temporal patterns from data for hierarchical classifiers construction
(IEEE, 2015) Szpyrka, M.; Szczur, A.; Bazan, Jan G.; Dydo, Ł.
A method of automatic extracting of temporal patterns from learning data for constructing hierarchical behavioral patterns based classifiers is considered in the paper. The presented approach can be used to complete the knowledge provided by experts or to discover the knowledge automatically if no expert knowledge is accessible. Formal description of temporal patterns is provided and an algorithm for automatic patterns extraction and evaluation is described. A system for packet-based network traffic anomaly detection is used to illustrate the considered ideas.