Ground truth
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Ground truth is a term used in various fields to refer to information provided by direct observation as opposed to information provided by inference.
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Etymology
The Oxford English Dictionary (s.v. "ground truth") records the use of the word "Groundtruth" in the sense of a "fundamental truth" from Henry Ellison's poem "The Siberian Exile's Tale", published in 1833.
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See also
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Ground truth" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
