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[FEA] Cosine similarity for HDBSCAN #6123

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nivibilla opened this issue Oct 24, 2024 · 1 comment
Open

[FEA] Cosine similarity for HDBSCAN #6123

nivibilla opened this issue Oct 24, 2024 · 1 comment
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? - Needs Triage Need team to review and classify feature request New feature or request

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@nivibilla
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Is your feature request related to a problem? Please describe.
I would like to use cosine similarity as a metric for HDBSCAN for high dimensional data without dimension reduction as its quite slow to do for large datasets

Describe the solution you'd like
Allow clusterer = cuml.cluster.hdbscan.HDBSCAN(min_cluster_size=50, metric='cosine', prediction_data=True)

Describe alternatives you've considered
normal DBSCAN supports this but this has issues with clusters of various sizes.
@nivibilla nivibilla added ? - Needs Triage Need team to review and classify feature request New feature or request labels Oct 24, 2024
@nivibilla
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Trying this currently raises this error

cuml/python/cuml/cuml/cluster/hdbscan/hdbscan.pyx

Line 838 in fb4c8af

raise ValueError(f"metric '{self.metric}' not supported, only "

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