Example usage for org.apache.mahout.math VectorWritable readFields

Introduction

In this page you can find the example usage for org.apache.mahout.math VectorWritable readFields.

Prototype

@Override
    public void readFields(DataInput in) throws IOException 

Source Link

Usage

From source file:com.scaleunlimited.classify.vectors.WritableComparableVector.java

License:Apache License

@Override
public void readFields(DataInput in) throws IOException {
    VectorWritable v = new VectorWritable();

    // VectorWritable relies on having a valid conf - not sure how
    // that normally gets set up w/Mahout, but this seems to work.
    v.setConf(CONF);/* w ww  .j a  va  2s . co m*/
    v.readFields(in);
    _vector = v.get();
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.item.PrefAndSimilarityColumnWritable.java

License:Apache License

@Override
public void readFields(DataInput in) throws IOException {
    prefValue = in.readFloat();// ww  w .  ja v a  2s.  co m
    VectorWritable vw = new VectorWritable();
    vw.readFields(in);
    similarityColumn = vw.get();
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.item.VectorAndPrefsWritable.java

License:Apache License

@Override
public void readFields(DataInput in) throws IOException {
    VectorWritable writable = new VectorWritable();
    writable.readFields(in);
    vector = writable.get();/*from w  ww.java 2 s.  c  om*/
    int size = Varint.readUnsignedVarInt(in);
    userIDs = new ArrayList<>(size);
    values = new ArrayList<>(size);
    for (int i = 0; i < size; i++) {
        userIDs.add(Varint.readSignedVarLong(in));
        values.add(in.readFloat());
    }
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.item.VectorOrPrefWritable.java

License:Apache License

@Override
public void readFields(DataInput in) throws IOException {
    boolean hasVector = in.readBoolean();
    if (hasVector) {
        VectorWritable writable = new VectorWritable();
        writable.readFields(in);
        set(writable.get());//from w  w w .  j av  a  2s. com
    } else {
        long theUserID = Varint.readSignedVarLong(in);
        float theValue = in.readFloat();
        set(theUserID, theValue);
    }
}

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