The objective of this study was to fit growth curves using nonlinear and linear functions to describe the growth of ostriches in a Brazilian population. The data set consisted of 112 animals with BW measurements from hatching to 383 d of age. Two nonlinear growth functions (Gompertz and logistic) and a third-order polynomial function were applied. The parameters for the models were estimated us...

The Research is to predict the accuracy of credit card fraudulent transactions using Light Gradient Booster algorithm.Novel with sample size =10 then Logistic Regression = 10 were executed for estimating rate transactions. sigmoid functions used in maps values between 0 and 1. Algorithm has a Maximum (91.6%) while comparing performance (81.4%). There was statistical significance difference p 0....

Rhynchophorus ferrugineus (Olivier, 1790) is an invasive pest species that constitutes one of the most important problems around Mediterranean region and has been responsible for loss over 100,000 palm trees with estimated annual cost EUR several hundred million since its introduction into Europe. Methodological approaches conservation ecology, such as multidisciplinary modelling, also apply in...

<p>Analyzing X-rays and computed tomography-scan (CT scan) images using a convolutional neural network (CNN) method is very interesting subject, especially after coronavirus disease 2019 (COVID-19) pandemic. In this paper, study made on 423 patients’ CT scan from Al-Kadhimiya (Madenat Al Emammain Kadhmain) hospital in Baghdad, Iraq, to diagnose if they have COVID or not CNN. The total dat...

Visual evoked potentials to pattern reversal (PR-VEPs) are used to assess the integrity and maturation of the visual pathways in infants and young children. To establish normal ranges and to facilitate interpolation, we consider the maturation rate of PR-VEPs using published normative data. Curves based on the logistic function (a sigmoid model) are introduced and compared with three other mode...

Artificial neural network (ANN) method was applied for modeling and prediction of mean solar radiation in given atmospheric parameters (temperature, pressure, humidity, precipitable water and month) in Turkey (26–45oE and 36–42oN) during the period of 2004–2006. Levenberg-Marquardt (LM) learning algorithms and logistic sigmoid transfer function were used in the network. In order to train the ne...

We examine the power of constant depth circuits with sigmoid (i.e. smooth) threshold gates for computing boolean functions. It is shown that, for depth 2, constant size circuits of this type are strictly more powerful than constant size boolean threshold circuits (i.e. circuits with linear threshold gates). On the other hand it turns out that, for any constant depth d, polynomial size sigmoid t...

يناثلا ىفشتسلما ،ةماعلا ةحارلجا مسق يف يدعبلا ليلحتلا اذه يرجأ :ةقيرطلا انمق دقل .م2014 ماع يف ينصلا ،وسغنايج ةعطاقم ،وجوس ،وكوس ةعمالج عباتلا ،نيلاديم تانايب ةدعاق يف كلذو عوضولماب طبترلما يملعلا بدلأا يف ثحبلاب ةرتفلا للاخ كلذو يويلحا بطلل ةينيصلا تانايبلا ةدعاقو ،نيركوكو ،سيبيمإو تاملكلاو نيوانعلا مادختساب ثحبلا اذهب انمق دقل .م2014 ىلإ م1990 نم نولوقلا يف ةرغفلا ثادحإ ،قافصلا جراخ نولوقلا ي...