Misuses of t-SNE and UMAP in visual analytics have become increasingly common.
Practitioners often use t-SNE and UMAP projections to investigate inter-cluster relationships even though these projections may not reflect true distances between clusters accurately.
The misuse of t-SNE and UMAP is attributed to limited discourse on their appropriate use in visual analytics.
A literature review of 114 papers and an interview study were conducted to verify the prevalence of misuse and understand practitioners' motivations for using these techniques.