Unique negative dimension (UND) is a complexity measure for the model of learning from positive examples. The unique negative dimension of a class of concepts is the size of the maximum subclass such that for every concept, we have is nonempty.
This concept was originally proposed by M. Gereb-Graus in "Complexity of learning from one-side examples", Technical Report TR-20-89, Harvard University Division of Engineering and Applied Science, 1989.
Famous quotes containing the words unique, negative and/or dimension:
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—Sarah Houghton, U.S. librarian. As quoted in Working, book 9, by Studs Terkel (1973)
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—Elaine Heffner (20th century)
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—Frances Fitzgerald (b. 1940)