Examples of org.apache.hama.commons.math.DoubleMatrix.multiply()

Class org.apache.hama.commons.math.DoubleMatrix

Examples of org.apache.hama.commons.math.DoubleMatrix.multiply()

org.apache.hama.commons.math.DoubleMatrix.multiply()
Multiplies this matrix (each element) with the given scalar and returns a new matrix.

      DoubleVector[] Mtransposed = new DenseDoubleVector[rank];
      for (int i = 0; i<rank; i++) {
        Mtransposed[i] = e.itemFeatureFactorized.getRowVector(i).multiply(aal_ml_xa.get(i));
      }
      tmp = new DenseDoubleMatrix(Mtransposed);
      tmp = tmp.multiply(2*TETTA*scoreDifference);
      res.itemFeatureFactorized = e.itemFeatureFactorized.add(tmp);
    }


    if (isAvailableUserFeature) {
      DoubleVector[] Mtransposed = new DenseDoubleVector[rank];

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      DoubleVector[] Mtransposed = new DenseDoubleVector[rank];
      for (int i = 0; i<rank; i++) {
        Mtransposed[i] = e.userFeatureFactorized.getRowVector(i).multiply(bbl_vl_yb.get(i));
      }
      tmp = new DenseDoubleMatrix(Mtransposed);
      tmp = tmp.multiply(2*TETTA*scoreDifference);
      res.userFeatureFactorized = e.userFeatureFactorized.add(tmp);
    }
    return res;
  }
  @Override

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