On selecting directions for directional distance functions in a non-parametric framework: a review
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DOI: 10.1007/s10479-017-2423-5
Abstract: Directional distance function (DDF) has been a commonly used technique for estimating efficiency and productivity over the past two decades, and the directional vector is usually predetermined in the applications of DDF. The most critical… read more here.
Keywords: review; selecting directions; directional distance; direction ... See more keywords