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BaseDimensionalityReduction

The Base Dimensionality Reduction class.

You can use this to skip over the dimensionality reduction step in BERTopic.

Examples: This will skip over the reduction step in BERTopic:

from bertopic import BERTopic
from bertopic.dimensionality import BaseDimensionalityReduction

empty_reduction_model = BaseDimensionalityReduction()

topic_model = BERTopic(umap_model=empty_reduction_model)
Source code in bertopic\dimensionality\_base.py 
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class BaseDimensionalityReduction:
    """The Base Dimensionality Reduction class.

    You can use this to skip over the dimensionality reduction step in BERTopic.

    Examples:
    This will skip over the reduction step in BERTopic:

    ```python
    from bertopic import BERTopic
    from bertopic.dimensionality import BaseDimensionalityReduction

    empty_reduction_model = BaseDimensionalityReduction()

    topic_model = BERTopic(umap_model=empty_reduction_model)
    ```
    """

    def fit(self, X: np.ndarray = None):
        return self

    def transform(self, X: np.ndarray) -> np.ndarray:
        return X