@Override
public MatrixBlock call(MatrixBlock arg0) throws Exception {
MatrixBlock pmV = _pmV.getMatrixBlock(1, 1);
// execute mapmmchain operation
MatrixBlock out = new MatrixBlock();
return arg0.chainMatrixMultOperations(pmV, null, out, ChainType.XtXv);
}
@Override
public Tuple2<MatrixIndexes, MatrixBlock> call(Tuple2<MatrixIndexes, MatrixBlock> arg0)
throws Exception {
MatrixBlock pmV = _pmV.getMatrixBlock(1, 1);
MatrixIndexes ixIn = arg0._1();
MatrixBlock blkIn = arg0._2();
int rowIx = (int) ixIn.getRowIndex();
MatrixIndexes ixOut = new MatrixIndexes(1, 1);
MatrixBlock blkOut = new MatrixBlock();
// execute mapmmchain operation
blkIn.chainMatrixMultOperations(pmV, _pmW.getMatrixBlock(rowIx, 1), blkOut, ChainType.XtwXv);
// output new tuple
return new Tuple2<MatrixIndexes, MatrixBlock>(ixOut, blkOut);
}