Package com.linkedin.feathr.common.tensor

Class DenseTensor

java.lang.Object

com.linkedin.feathr.common.tensor.DenseTensor

All Implemented Interfaces:

TensorData

Direct Known Subclasses:

ByteBufferDenseTensor

public abstract class DenseTensor
extends Object
implements TensorData

A dense subkind of tensor data. Guarantees that values in all columns except the last fill the n-dimensional rectangle in lexicographic order, e.g. for a shape [2, 3]: (0, 0, value) (0, 1, value) (0, 2, value) (1, 0, value) (1, 1, value) (1, 2, value) Note that this implies that only integral types (INT and LONG) can be used as dimensions in dense tensors. Can be backed by byte buffers, java.util collections, Avro, Spark, etc.

Constructor Summary

Constructors

Constructor	Description
DenseTensor()

Method Summary

Modifier and Type	Method	Description
abstract List<?>	asList()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.linkedin.feathr.common.tensor.TensorData

cardinality, estimatedCardinality, getArity, getShape, getTypes, isEmpty, iterator

Constructor Details

DenseTensor

public DenseTensor()

Method Details

asList

public abstract List<?> asList()

Returns:

the list of values in their unraveled order. This in combination with the shape is enough to restore the entire tensor, as the dimensions can be calculated from the shape.