I have an data set (1300*1600). I have used LVQ for feature selection. I is taking almost 48 hours to calculate the importance score. I am also doing 10 fold cross validation .
https://machinelearningmastery.com/learning-vector-quantization-for-machine-learning/
It should run on quadratic complexity, but it depends on the specific LVQ implementation and how it is programmed
O(n3) may be.
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