Social Sciences › Decision Sciences › Management Science and Operations Research
Grey System Theory Applications
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- FastManly: An EM-Gradient Algorithm for Manly Mixture Models
Katharine M. Clark, Paul D. McNicholas · 24. September 2026
A faster implementation of mixtures of Manly transformations is proposed. This method, called FastManly, uses Newton's method for optimization in an EM gradient algorithm instead of Nelder-Mead in a traditional EM. A gradient and full Hessian are derived. Simulations show improved performance with n…
- Importance Weighting Correction of Regularized Least-Squares for Target Shift
Davit Gogolashvili · 4. März 2026
Importance weighting is a standard tool for correcting distribution shift, but its statistical behavior under target shift -- where the label distribution changes between training and testing while the conditional distribution of inputs given the label remains stable -- remains under-explored. We an…
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