merlin.systems.dag.ops.unroll_features.UnrollFeatures

class merlin.systems.dag.ops.unroll_features.UnrollFeatures(item_id_col, unroll_cols, unrolled_prefix='')[source]

Bases: merlin.systems.dag.ops.operator.PipelineableInferenceOperator

This operator takes a target column and joins the “unroll” columns to the target. This helps when broadcasting a series of user features to a set of items.

__init__(item_id_col, unroll_cols, unrolled_prefix='')[source]

Methods

__init__(item_id_col, unroll_cols[, …])

column_mapping(col_selector)

Compute which output columns depend on which input columns

compute_column_schema(col_name, input_schema)

compute_input_schema(root_schema, …)

Given the schemas coming from upstream sources and a column selector for the input columns, returns a set of schemas for the input columns this operator will use

compute_output_schema(input_schema, col_selector)

compute_selector(input_schema, selector[, …])

Provides a hook method for sub-classes to override to implement custom column selection logic.

create_node(selector)

_summary_

export(path, input_schema, output_schema[, …])

Write out a Triton model config directory

from_config(config, **kwargs)

Load operator and properties from Triton config

from_model_registry(registry, **kwargs)

Loads the InferenceOperator from the provided ModelRegistry.

from_path(path, **kwargs)

Loads the InferenceOperator from the path where it was exported after training.

load_artifacts(artifact_path)

Hook method that provides a way to load saved artifacts for the operator

output_column_names(col_selector)

Given a set of columns names returns the names of the transformed columns this operator will produce

transform(col_selector, transformable)

validate_schemas(parents_schema, …[, …])

Provides a hook method that sub-classes can override to implement schema validation logic.

Attributes

dependencies

dynamic_dtypes

export_name

Provides a clear common english identifier for this operator.

exportable_backends

is_subgraph

label

output_dtype

output_properties

output_tags

scalar_shape

supported_formats

supports

Returns what kind of data representation this operator supports

classmethod from_config(config, **kwargs)merlin.systems.dag.ops.unroll_features.UnrollFeatures[source]

Load operator and properties from Triton config

export(path: str, input_schema: merlin.schema.schema.Schema, output_schema: merlin.schema.schema.Schema, params: Optional[dict] = None, node_id: Optional[int] = None, version: int = 1, backend: str = 'ensemble')[source]

Write out a Triton model config directory

property dependencies
compute_output_schema(input_schema: merlin.schema.schema.Schema, col_selector: merlin.dag.selector.ColumnSelector, prev_output_schema: Optional[merlin.schema.schema.Schema] = None)merlin.schema.schema.Schema[source]
transform(col_selector: merlin.dag.selector.ColumnSelector, transformable: merlin.core.protocols.Transformable)merlin.core.protocols.Transformable[source]