The term "category system" is correct and usable in written English.
You can use it when referring to a system of classification or categorization. For example: "The researchers used a complex category system to analyze the data."
The U.S. category system has no metric to discriminate human-to-human transmission rates.
The category system in Wikipedia can be taken as a conceptual network.
This category system is not final but allows continuous adaptation during the entire analysis [67].
A second category system is specialized for security-type applications and can work under controlled lighting conditions.
Take the next step: ditch this impossible to maintain category system and move to tagging and dynamic, on-the-fly taxonomy.
A first category system tends to be robust and can tackle various lighting conditions, orientations, scale and the like, and tends to be computationally expensive.
When the current two-category system was created in the 1970's, cars ruled the American road.
A thirteen-category system (considering land cover, utilisation, and urban zoning aspects) was devised and applied to Melbourne, Australia.
Though Iraq posts a slightly better score, Afghanistan shifts from "partly free" to "not free" in Freedom House's broad three-category system.
The contract would also replace the union's current five-category pay structure with a 12-category system, to improve compensation for controllers at busy airports and those with more demanding responsibilities.
Herbert Saffir, 90, an engineer who created the five-category system used to describe hurricane strength and warn millions of an approaching storm's danger, died Nov. 21 at South Miami Hospital in Miami.
