... seismicity risk in the Pyhäsalmi mine. The expected maximum event size is found by clustering seismic data using the Quality Threshold and Single Linkage clustering algorithms, and applying the Gutenberg-Richter's frequency-magnitude relationship. Induced seismicity risk is assessed using the Quantitative...

... are ordered in layers and the information is processed in one direction, from input to output. The learning rule is a procedure for modifying the weights and biases of the network. This procedure may also be referred to as a training algorithm. The learning rule is applied to train the network to perform some...

... mechanics. The particle swarm optimization (PSO) algorithm developing in recent years is a stochastic optimization algorithm based on swarm intelligence. By use of the theory of particle swarm optimization (PSO) algorithm, a modified PSO algorithm is proposed for the calculation of the initial stress field...

... mechanics. The principal stress ratio estimation algorithm is developed. The ratio of principal stresses is an additional parameter and it is used to find out the stress with the fracture reopening pressure on the borehole wall. Technical and methodic issues of practical single and repeated investigations...