Wiener

Wiener is a term of German origin associated with Vienna. In German, Wien is the city name, and the suffix -er forms a demonym or adjective, so Wiener can refer to a person from Vienna or to things related to Vienna. In English usage, Wiener often appears in contexts connected with Vienna, such as Wiener Philharmoniker (the Vienna Philharmonic) or Wiener Würstchen, though the more neutral English demonym for residents is Viennese.

The word also designates a type of sausage. The Wiener, or Vienna sausage, is a thin, cured sausage linked to Vienna; in German it is Wiener Würstchen and it is widely sold as a hot dog or canned sausage in various cuisines.

In mathematics and signal processing, Wiener names accompany several concepts named after Norbert Wiener (1894–1964). The Wiener process, or standard Brownian motion, is a fundamental stochastic process in probability theory. The Wiener filter is a method for reducing random noise in signals. The surname Wiener is borne by many individuals, with Norbert Wiener being a notably influential figure in the development of cybernetics and systems theory.