Abstract: This application relates to apparatus and methods for generating target labels from multi-dimensional time series data. In some examples, a computing device receives parameters that correspond to each one of a plurality of sellers, and gathers a set of relevant time series metrics for each one of the sellers based on the respective seller's parameters over a time period. The computing device calculates aggregated metrics for each corresponding subperiod based on each seller's respective set of relevant time series metrics. The computing device generates seller persona clusters based at least in part on the calculated aggregated metrics for each seller. The computing device calculates a score for the generated seller persona clusters, and when the score is greater than or equal to a predetermined threshold value, generates a respective target label for each of the clusters, and applies each respective target label to the sellers within each respective cluster.