tf.feature_column.indicator_column
| View source on GitHub |
Represents multi-hot representation of given categorical column.
tf.feature_column.indicator_column(
categorical_column
)
For DNN model,
indicator_columncan be used to wrap anycategorical_column_*(e.g., to feed to DNN). Consider to Useembedding_columnif the number of buckets/unique(values) are large.For Wide (aka linear) model,
indicator_columnis the internal representation for categorical column when passing categorical column directly (as any element in feature_columns) tolinear_model. Seelinear_modelfor details.
name = indicator_column(categorical_column_with_vocabulary_list(
'name', ['bob', 'george', 'wanda']))
columns = [name, ...]
features = tf.io.parse_example(..., features=make_parse_example_spec(columns))
dense_tensor = input_layer(features, columns)
dense_tensor == [[1, 0, 0]] # If "name" bytes_list is ["bob"]
dense_tensor == [[1, 0, 1]] # If "name" bytes_list is ["bob", "wanda"]
dense_tensor == [[2, 0, 0]] # If "name" bytes_list is ["bob", "bob"]
| Args | |
|---|---|
categorical_column | A CategoricalColumn which is created by categorical_column_with_* or crossed_column functions. |
| Returns | |
|---|---|
An IndicatorColumn. |
| Raises | |
|---|---|
ValueError | If categorical_column is not CategoricalColumn type. |
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Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.4/api_docs/python/tf/feature_column/indicator_column