In ultrasound imaging, state-of-the-art methods for transmit beam pattern (TBP) optimization have well-known drawbacks like non-uniform beam width over depth, significant side lobes, and quick energy drop-out beyond the focal region. To overcome these limitations, we develop a TBP optimization a...
The vulnerability analysis can be used to reduce dimensionality in a model, if various parameters are determined to have little effect on output (i.e., are able to have high noise or regularization applied). FIG. 4 illustrates an exemplary method 400 for application of a stochastic layer to ...
The former in principle quickens learning convergence when gradients are aligned in subsequent steps, whereas the latter is a \(L_{2}\) regularization term. The interested reader is pointed to [23] for a detailed description of optimization methods and their subtleties. 4.1 Data and Training ...
4), while at 150 m depth the larger K values are mainly distributed in the eastern part. In Region B, the distribution of K shows that the areas with lower K are more continuous than those in Region A at the depth of 100 m and 150 m. The estimated spatial K values reflect ...
We present a method for risk assessment of groundwater drawdown induced land subsidence when planning for sub-surface infrastructure. Since groundwater dra
Iterate averaging as regularization for stochastic gradient descent. In Proceedings of the Conference on Learning Theory, Stockholm, Sweden, 6–9 July 2018; pp. 3222–3242. [Google Scholar] Izmailov, P.; Podoprikhin, D.; Garipov, T.; Vetrov, D.; Wilson, A.G. Averaging weights leads to ...
Adopting a volume penalization technique to account for the obstruction caused by turbine rotors instead of resolving the grid and implementing boundary conditions; Identifying a minimal training dataset of velocity correlations that are crucial for completing statistical signatures of wake turbulence even ...
The airborne electromagnetic (AEM) method is a rapid geophysical exploration technique that has been widely used in mineral, environmental, and engineering groundwater explorations [1,2,3,4]. With the increasing demand for high-accuracy interpretation of geological targets varying in size, depth, and...
When designing according to the bearing capacity, the allowable relative convergence and the allowable vault settlement for the tunnel initial support structure should be de- termined by the surrounding rock geological conditions, surrounding rock classification and tunnel buried depth. According to the ...
The CNN’s loss function was subtracted by a weighted entropy term, encouraging the model to maintain appropriate uncertainty, especially for the underrepresented high water depth pixels. The effects of this technique on a CNN model's accuracy for flood map super-resolution were examined at factors...