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—Current intrusion detection systems have low detection rate and high false positive rate for new intrusion types. This article applied PSO in network security area, a novel intrusion detection method based on chaos Particle Swarm Optimization and Fuzzy C-Means Clustering is proposed in order to solve the problem of FCM which is much more sensitive to the(More)
Casing coupling location signals provided by the magnetic localizer in retractors are typically used to ascertain the position of casing couplings in horizontal wells. However, the casing coupling location signal is usually submerged in noise, which will result in the failure of casing coupling detection under the harsh logging environment conditions. The(More)
Vertigo is a common complaint with many potential causes involving otology, neurology and general medicine, and it is fairly difficult to distinguish the vertiginous disorders from each other accurately even for experienced physicians. Based on comprehensive investigations to relevant characteristics of vertigo, we propose a diagnostic modeling and(More)