Examples with SimpleTensor edu.stanford.nlp.neural.SimpleTensor used on opensource projects

Example 6 with SimpleTensor

use of edu.stanford.nlp.neural.SimpleTensor in project CoreNLP by stanfordnlp.

the class SentimentCostAndGradient method scaleAndRegularizeTensor.

private static double scaleAndRegularizeTensor(TwoDimensionalMap<String, String, SimpleTensor> derivatives, TwoDimensionalMap<String, String, SimpleTensor> currentMatrices, double scale, double regCost) {
    // the regularization cost
    double cost = 0.0;
    for (TwoDimensionalMap.Entry<String, String, SimpleTensor> entry : currentMatrices) {
        SimpleTensor D = derivatives.get(entry.getFirstKey(), entry.getSecondKey());
        D = D.scale(scale).plus(entry.getValue().scale(regCost));
        derivatives.put(entry.getFirstKey(), entry.getSecondKey(), D);
        cost += entry.getValue().elementMult(entry.getValue()).elementSum() * regCost / 2.0;
    }
    return cost;
}