What details can be obtained by hovering over a cluster on the Dial Visualization?

Hovering over a cluster on the Dial Visualization provides a range of analytical details that help users interpret the data effectively. The correct answer indicates that the Hover feature reveals matches, documents, subclusters, and the coherence score.

Matches represent the number of documents that fit within the selected cluster, allowing users to gauge the relevance and volume of data in that area. Documents provide detailed insights into the specific items contained within the cluster, aiding in a granular understanding of the dataset. Subclusters give additional context by breaking down the main cluster into smaller, more focused groupings, thus allowing a deeper analysis of related items. The coherence score is a metric reflecting how well the items within the cluster relate to each other, contributing to the overall understanding of the data structure and quality.

Other options fail to include the comprehensive range of relevant data points that help users gauge the connections and significance within the clusters. For instance, while some options mention size or distance, they do not encapsulate the essential metrics like subclusters and coherence score that are vital for effective data interpretation in this visualization context.