Exact(4)
Furthermore, an accelerated gradient method is utilized to further speed up the convergence and the proposed algorithm is proved to scale well to high-dimensional data.
In our case, the multiple proximal operators do not provide a guaranteed convergence rate, but in practice, we find the accelerated gradient makes convergence significantly faster.
For larger scale problems, one can use the method proposed by Chen et al. Chen et al. (2010) that uses the accelerated gradient method.
We also make use of the accelerated gradient method by, which finds a sequence of x t which converges toward the optima, using an internal variable y t and a magnification of the gradient, a t to increase convergence rates near the mode.
Similar(56)
The target accelerating gradient is 40 MV/m or higher.
Also, the modest increment in plasma channel radius is needed to obtain maximum accelerating gradient.
Accelerating gradient should be as high as possible to accelerate electron beam inside the cavity.
The new structure design promises higher accelerating gradient and lower impedance than those of the existing BTWS.
The Bragg reflector enhances the accelerating gradient of the structure, while the PFT increases the effective interaction length.
The overall length of the linac, and therefore its cost, is almost inversely proportional to the average accelerating gradient.
Superfish/Poisson is also used to optimize the geometry of the cavity cells to get the highest accelerating gradient.
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