Visualizing Data using t-SNE - Journal of Machine Learning ...
Leibler divergence (which is in this case equal to the cross-entropy up to an additive constant). SNE minimizes the sum of Kullback-Leibler divergences over all datapoints using a gradient descent method. The cost function C is given by C =∑ i KL(PijjQi)=∑ i ∑ j pjji log p ji qjji; (2)
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