Various embodiments relate generally to data science and data analysis, computer software and systems, and wired and wireless network communications to interface among repositories of disparate datasets and computing machine-based entities configured to access datasets, and, more specifically, to a computing and data storage platform to implement computerized tools to identify data classifications and similar subsets of graph-based data arrangements with which to join, according to at least some examples. For example, a method may include determining a classification type for a subset of data based on a graph data arrangement, generating presentation data as a first user input to detect selection of the first user input. The method may include predicting a classification type for data. The method may also include generating other presentation data configured to join datasets, such as a column of tabular-formatted data with one or more portions of a graph data arrangement.