منابع مشابه
Error Squared Control
I am frequently asked to visit offshore production platforms to sort out problems with the oil export or the produced water quality where the ultimate issue is not poor control in the export or water-handling systems but due to over-aggressive level control at the reception end of the process. One of the tools available to decouple the front and back ends of the production train is error square...
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• Predictive Accuracy Measures. These measures evaluate how close the recommender system came to predicting actual rating/utility values. • Classification Accuracy Measures. These measures evaluate the frequency with which a recommender system makes correct/incorrect decisions regarding items. • Rank Accuracy Measures. These measures evaluate the correctness of the ordering of items performed b...
متن کاملGeneralized conjugate gradient squared
The Conjugate Gradient Squared (CGS) is an iterative method for solving nonsymmetric linear systems of equations. However, during the iteration large residual norms may appear, which may lead to inaccurate approximate solutions or may even deteriorate the convergence rate. Instead of squaring the Bi-CG polynomial as in CGS, we propose to consider products of two nearby Bi-CG polynomials which l...
متن کاملDeontic Reasoning Squared
The deontic square of oppositions describes relations between four deontic concepts: ban, permission, obligation, and release from obligation. It is argued that people use these relations not only when they interpret deontic social rules, but also when they reason from given rules. Data from several studies are presented that corroborate this argument.
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ژورنال
عنوان ژورنال: Nature Reviews Cancer
سال: 2013
ISSN: 1474-175X,1474-1768
DOI: 10.1038/nrc3516