discriminator

plural discriminators

1. A person who discriminates, as:
   1. A person who differentiates things or concepts.

      keen discriminator

      1 more example

      Generally, we may say, that Mr. Smith is a very accomplished etymological scholar, a very keen discriminator, and that his illustrative examples are selected with great industry, and from a wide field of English literature […]

      1871, The British Quarterly Review, volume 54, page 279

      Synonyms: differentiator

   2. A person who acts unfairly through prejudice.

      I am not a discriminator

2. A test or variable, etc. that serves to distinguish between different things.

   Colour is not an effective discriminator when it comes to the spiciness of food.

   1 more example

   Moreover, the domainness variable also plays the role of weighting discriminators to balance the relatedness of the generated images to different domains. […] Taking semantic segmentation as an example, a typical way is to append a discriminator to the segmentation model, which is used to distinguish the source and target samples.

   2018 December 13, Rui Gong, Wen Li, Yuhua Chen, Luc Van Gool, “DLOW: Domain Flow for Adaptation and Generalization”, in arXiv, page 2481

3. natural sciencesAny of several electronic devices that convert some property of a signal into an amplitude whose value is proportional to the difference between the value of the input signal and that of a standard.
4. businessA feature of the seller's offering that differs from a competitor's offering and is important to the buyer in question.

   An especially strong warranty can be a discriminator in some marketplaces.

   Synonyms: differentiator