Wikipedia
NIST is a method for evaluating the quality of text which has been translated using machine translation. Its name comes from the US National Institute of Standards and Technology.
It is based on the BLEU metric, but with some alterations. Where BLEU simply calculates n-gram precision adding equal weight to each one, NIST also calculates how informative a particular n-gram is. That is to say when a correct n-gram is found, the rarer that n-gram is, the more weight it will be given.
For example, if the bigram "on the" is correctly matched, it will receive lower weight than the correct matching of bigram "interesting calculations", as this is less likely to occur.
NIST also differs from BLEU in its calculation of the brevity penalty insofar as small variations in translation length do not impact the overall score as much.
NIST may refer to:
- National Institute of Standards and Technology, a non-regulatory agency of the United States Department of Commerce
- National Institute of Science and Technology, an engineering college in Pallur Hills, Orissa, India
- NIST International School, an international school located in downtown Bangkok, Thailand
- NIST (metric), a method for evaluating the quality of text which has been translated using machine translation
Usage examples of "nist".
And childe Leopold did up his beaver for to pleasure him and took apertly somewhat in amity for he never drank no manner of mead which he then put by and anon full privily he voided the more part in his neighbour glass and his neighbour nist not of this wile.