Câu 25: NCA-GENL: Generative AI LLM

When should one use data clustering and visualization techniques such as tSNE or UMAP?

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