YDS

YDS is an acronym used in different contexts, and its meaning depends on the domain. The most common uses are as an abbreviation for yards, a unit of length, and as the name of a scheduling algorithm in computer science.

In measurement and sports statistics, YDS stands for yards, a unit in the imperial system equal to 3 feet or 36 inches. The plural form is yards, and the abbreviation is often written as yds or YDS in tables, box scores, and data displays. In American football and other sports, box scores frequently report rushing yards (Rushing YDS) and receiving yards (Receiving YDS), while other contexts may use the term to denote distance covered in track and field events or other measurements.

YDS algorithm, named after Yao, Demers, and Shenker, is a scheduling algorithm used to minimize energy consumption on a single processor with speed scaling, under a convex power model such as P(s) = s^α with α > 1. The algorithm operates on a set of jobs with release times and deadlines. It repeatedly identifies the interval with maximum density, defined as the total work within the interval divided by its length, and schedules the jobs in that interval at a constant speed equal to the density. After scheduling that interval, it removes those jobs and recursively solves the remaining problem. The YDS algorithm yields an energy-optimal preemptive schedule under the standard speed-scaling model.

Beyond these uses, YDS is also employed as an acronym by various organizations and programs across education, government, and industry. There is no single universally dominant meaning, so the intended sense depends on the context.