Fedor Lehocki

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We present results for the formalism of Extended Fuzzy Petri Nets by enriching the enabling and firing rule by introducing the so-called weights and thresholds in order to filter the propagated knowledge. It is shown that knowledge propagation described using such extended Fuzzy Petri nets still terminates in a unique stable state. Based on this result, the(More)
We propose and evaluate an approach for network intrusion detection in high dimensional space. This approach is based on an approximate solution to the nearest neighbor problem. Our evaluation is based on the KDD’99 data set, a Yahoo web spam data set and another set used in the NIPS’03 feature selection challenge. The approximate approach shows that good(More)
Lack of standardization in estimating the quality of diagnostic systems provides many possibilities in developing new methodologies. The paper deals with general method for determination of effectiveness of diagnostic systems in non-invasive diagnostics of thyroid. The result of presented methodology is a single number, which clearly depicts the quality of(More)
The present work is devoted to the development of software tool written in Java for synthesis of asynchronous speed-independent circuits. A special type of Petri nets Signal Transition Graph, was used for the synthesis. Using the algorithm based on the theory of regions, a logic function is derived from this graph. In order to reduce the complexity of the(More)