The most common transfer functions in neural networks are of the sigmoidal type. In this article other transfer functions are considered. Advantages of simple gaussians, giving hyperelliptical densities, and gaussian bar functions (sums of one-dimensional gaussians) are discussed. Bi-radial functions are formed from products of two sigmoids. Product of M bi-radial functions in N -dimensional pa...

The choice of transfer functions in neural networks is of crucial importance to their performance. Although sigmoidal transfer functions are the most common there is no a priori reason why they should be optimal in all cases. In this article advantages of various neural transfer functions are discussed and several new type of functions are introduced. Universal transfer functions, parametrized ...

1 EE Dept., The Pennsylvania State University. University Park, PA 16802, USA, [email protected] 2 EE Dept., The Pennsylvania State University. University Park, PA 16802, USA, [email protected] 3 EE Dept., The Pennsylvania State University. University Park, PA 16802, USA, [email protected] 4 EE Dept., The Pennsylvania State University. University Park, PA 16802, USA, [email protected]....

S mall-signal analysis of switching dc-dc converters determines their specific transfer functions, for example, for stability analysis or design of a proper input filter. Transfer functions of interest for switching dc-dc converters are input impedance , output impedance, duty cycle (or control voltage) to output voltage, and input voltage to output voltage. Two pieces of literature about accom...

Multi-dimensional transfer functions are an efficient way to visualize features in scalar volume data produced by CT or MRI scanners. However, the optimal transfer function is difficult to find in general. We present an automatic yet powerful method for the automatic setup of multi-dimensional transfer functions by adding spatial information to the histogram of a volume. Using this information ...

Abstract As volcanoes are closely related to the living environment of humans, in particular via natural hazards and geothermal energy, scientific studies on volcanic edifice structures required. Ulleung Island is a Quaternary island located mid-western East Sea (Sea Japan). In this study, we conducted an audio-frequency magnetotelluric (AMT) survey image substructure edifice. addition, electri...

Using a global database of 125 magnetometers covering several decades, we present occurrence statistics for fluctuations the horizontal geomagnetic field (dBh/dt) exceeding 99.97th percentile (P99.97) both ramp changes (Rn) and root-mean-square (Sn) over periods, ?, from 1 to 60 min describe their variation with latitude magnetic local time (MLT). Rates exceedance are explained by reference mag...