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Measuring the sizes of concavities
Pattern Recognition Letters, 1985In shape recognition of a region R, it will be useful to have information about position, size and shape of its concavities, for purposes of description. The present paper investigates two measures of size of a concavity, in addition to its area, and also studies the relationships between the three size measures.
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Concave learners for rankboost
J. Mach. Learn. Res., 2007Summary: Rankboost has been shown to be an effective algorithm for combining ranks. However, its ability to generalize well and not overfit is directly related to the choice of weak learner, in the sense that regularization of the rank function is due to the regularization properties of its weak learners.
Ofer Melnik, Yehuda Vardi, Cun-Hui Zhang
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The Theory of the Concave Grating
Journal of the Optical Society of America, 1945Not ...
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Concave PtCo nanocrosses for methanol oxidation reaction
Applied Catalysis B: Environmental, 2020Zhijuan Li, Xian Jiang, Jinrui Hu
exaly
Quasi-concavity and pseudo-concavity of cubic functions
Mathematical Programming, 1973openaire +2 more sources
A Strategy for Designing a Concave Pt–Ni Alloy through Controllable Chemical Etching
Angewandte Chemie - International Edition, 2012Yuen Wu, Dingsheng Wang, Zhiqiang Niu
exaly