NCA-GENL: Generative AI and LLMsDemo

Question

When should data clustering and visualization techniques such as tSNE or UMAP be used?

A When there is a need to handle missing values and impute them in the dataset.
B When there is a need to perform regression analysis and predict continuous numerical values.
C When there is a need to reduce the dimensionality of the data and visualize the clusters in a lower-dimensional space.
D When there is a need to perform feature extraction and identify important variables in the dataset.

Explanation

t-SNE and UMAP reduce high-dimensional observations to a lower-dimensional embedding—commonly two dimensions—for visualization, making local structure and apparent clusters easier to inspect. They are not imputation, regression, or feature-importance methods.

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NCA-GENL: Generative AI and LLMsDemo

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