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In many applications, objective functions, including loss functions as a particular case, are determined by the problem formulation. In other situations, the decision maker’s preference must be elicited and represented by a scalar-valued function (called also utility function) in a form suitable for optimization — the problem that Ragnar Frisch has highlighted in his Nobel Prize lecture. [4]
For proper loss functions, the loss margin can be defined as = ′ ″ and shown to be directly related to the regularization properties of the classifier. [9] Specifically a loss function of larger margin increases regularization and produces better estimates of the posterior probability.
Bridging loss, the loss that results when an impedance is connected across a transmission line; Coupling loss, the loss that occurs when energy is transferred from one circuit, optical device, or medium to another; Insertion loss, the decrease in transmitted signal power resulting from the insertion of a device in a transmission line or optical ...
In electrical engineering, dielectric loss quantifies a dielectric material's inherent dissipation of electromagnetic energy (e.g. heat). [1] It can be parameterized in terms of either the loss angle δ or the corresponding loss tangent tan( δ ) .
Return loss is a measure of how well devices or lines are matched. A match is good if the return loss is high. A high return loss is desirable and results in a lower insertion loss. From a certain perspective 'Return Loss' is a misnomer. The usual function of a transmission line is to convey power from a source to a load with minimal loss.
A loss of $0.05 is perceived as having a greater utility loss than the utility increase of a comparable gain. In cognitive science and behavioral economics, loss aversion refers to a cognitive bias in which the same situation is perceived as worse if it is framed as a loss, rather than a gain.
Insertion loss is a figure of merit for an electronic filter and this data is generally specified with a filter. Insertion loss is defined as a ratio of the signal level in a test configuration without the filter installed ( | V 1 | {\displaystyle \left\vert V_{1}\right\vert } ) to the signal level with the filter installed ( | V 2 ...
Some examples are 17p13 loss in multiple cancer types where a copy of TP53 gene gets inactivated, 13q14 loss in retinoblastoma with RB1 gene deletion or 11p13 in Wilms' tumor where WT1 gene is lost. [2] Other commonly lost chromosomal loci are still being investigated in terms of potential tumor suppressors located in those regions.