Y.T. Lo's Antenna Handbook - Applications PDF

By Y.T. Lo

ISBN-10: 0442015925

ISBN-13: 9780442015923

ISBN-10: 0442015941

ISBN-13: 9780442015947

ISBN-10: 0442015968

ISBN-13: 9780442015961

Quantity 1: Antenna basics and Mathematical recommendations opens with a dialogue of the basics and mathematical options for any type of paintings with antennas, together with easy rules, theorems, and formulation, and strategies. DLC: Antennas (Electronics)

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This requirement for parameter suppression becomes stronger as the student becomes more powerful. The effect is shown in Fig. 9b; generalization error for the matching student is given by the dot-dash curve, whereas that of the overly powerful but correctly optimized student is given by the solid curve. d. Unrealizable Scenario An analogous result to that of the overrealizable scenario is found when the teacher is more powerful than the student. Optimization of training parameters under the belief that the teacher has the same form as the student leads to overregularization, due to the assumed magnitude of the teacher weight vector being greater than the actual magnitude.

It also corresponds to imposing the constraint that minimization of the training error is equivalent to maximizing the likelihood of the data [34]. The quantity ^ is a hyperparameter, controlling the importance of minimizing the error on the training set. This distribution can be realized practically by employing the Langevin training algorithm, which is simply the gradient descent algorithm with an appropriate noise term added to the weights at each update [35]. Furthermore, it has been shown that the gradient descent learning algorithm, considered as a stochastic process due to random order of presentation of the training data, solves a Fokker-Planck equation for which the stationary distribution can be approximated by a Gibbs distribution [36].

Note that this result is independent of the assumption of diagonal-off-diagonal form for G. e. , that not due to mismatch between student and teacher) is inversely proportional to the number of training examples. For this case the general expression of Eq. (33) reduces to ((^G>) = f{^+a^} + V^{trG-ij-L^G-^L}w^ (40) Taking y ^^ 0, the only P dependencies are in the l/P prefactors. This result has been confirmed by simulations. Plotting the log of the averaged empirical generalization error versus log P gives a gradient of —1.

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Antenna Handbook - Applications by Y.T. Lo


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