Can I use UMAP for clustering preprocessing?

Absolutely. UMAP is an excellent preprocessor for HDBSCAN. For best results, it is recommended to use higher components (5-10) and set min_dist to 0.0.

Does UMAP-learn support supervised learning?

Yes, UMAP can utilize label information during the fit process to better separate known classes while maintaining the internal structure of each class.

What are the main advantages of UMAP over t-SNE?

UMAP is typically faster than t-SNE, preserves more of the global data structure, and allows for the transformation of new, unseen data into an existing embedding space.

What is Parametric UMAP?

Parametric UMAP is a variant that uses neural networks to learn the embedding function, allowing for extremely fast transforms and the ability to perform inverse transforms (reconstruction).

Why is data standardization important for this skill?

Standardizing features ensures that all dimensions are weighted equally. Without it, UMAP may be biased toward features with larger numerical ranges.

UMAP-Learn Dimensionality Reduction

Name: UMAP-Learn Dimensionality Reduction
Author: ricable

byricable

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데이터 과학 및 ML

Performs high-performance nonlinear dimensionality reduction for data visualization, clustering preprocessing, and supervised manifold learning.

소개

The UMAP-Learn skill provides Claude with specialized expertise in the Uniform Manifold Approximation and Projection algorithm, a powerful tool for analyzing high-dimensional data. This skill enables the generation of embeddings that preserve both local and global structures more effectively than t-SNE, while offering significantly better scalability. It includes implementation patterns for 2D/3D visualization, density-based clustering preprocessing for HDBSCAN, and advanced supervised dimensionality reduction. Whether you are performing exploratory data analysis or building complex machine learning pipelines, this skill provides the parameters and workflows needed to transform complex datasets into meaningful low-dimensional representations.

주요 기능

Optimized preprocessing configurations for density-based clustering like HDBSCAN
Parametric UMAP support via neural network mappings for efficient data transformation
Comprehensive parameter tuning for balancing local and global topological structures
Fast nonlinear manifold learning for 2D and 3D data visualization
1 GitHub stars
Supervised and semi-supervised dimensionality reduction using target labels

사용 사례

Visualizing high-dimensional embeddings to identify patterns and anomalies
Reducing feature dimensions to overcome the 'curse of dimensionality' in clustering models
Implementing supervised feature engineering to improve downstream classifier performance

소개

주요 기능

Optimized preprocessing configurations for density-based clustering like HDBSCAN
Parametric UMAP support via neural network mappings for efficient data transformation
Comprehensive parameter tuning for balancing local and global topological structures
Fast nonlinear manifold learning for 2D and 3D data visualization
1 GitHub stars
Supervised and semi-supervised dimensionality reduction using target labels

사용 사례

Visualizing high-dimensional embeddings to identify patterns and anomalies
Reducing feature dimensions to overcome the 'curse of dimensionality' in clustering models
Implementing supervised feature engineering to improve downstream classifier performance