TopX
TopX is a term used across computer science, data analysis, and media to denote a subset of items that are ranked highest according to a specified metric. The exact meaning of TopX depends on context, but common uses involve selecting the top X items from a larger collection, such as the X highest-scoring documents, products, users, or events.
In data processing, TopX is defined by a scoring function; the top X items are those with
Algorithms for computing TopX range from straightforward to optimized. A naive approach sorts all items and
Applications of TopX include search result ranking, recommendation engines, dashboards, business analytics, and sports statistics. The
See also: top-N, top-k queries, ranking, filtering, culling.