Package org.apache.commons.math3.linear

Examples of org.apache.commons.math3.linear.RealVector.mapDivideToSelf()

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    }

    // Normalize userFeatures by l-inf-norm
    for (Integer uid : userFeatures.keySet()) {
      final RealVector feature = userFeatures.get(uid);
      feature.mapDivideToSelf(feature.getLInfNorm());
    }

    // Normalize itemFeatures by weight
    Map<Integer, RealVector> itemFeatures = new HashMap<Integer, RealVector>();
    for (Integer iid : data.itemFeatures.keySet()) {
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