Questions tagged as 'redes-neurais'

Tagged questions
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Normalization of data in a neural network

I'm studying the use of neural networks and learned that input data should be normalized so that the activation functions do not operate in saturation intervals, it is common for the normalization interval to be [-1, + 1]. However, to normalize...
asked by 28.11.2017 / 13:30
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Problems with input data in neural network with scikit learn

I would like to create a neural network that returns 1 (one) for a specific case and 0 (zero) for all the others. The idea would be: import numpy as np import pandas as pd from sklearn.preprocessing import MaxAbsScaler from sklearn.neural_n...
asked by 22.08.2018 / 01:19
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How can I train a neural network with previous games? [closed]

Suppose I want to teach a neural network to play chess. I did the reinforcement learning method. I've seen cases where these networks learn from game examples, but how can this be done?     
asked by 07.12.2017 / 20:50
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How to classify data with a Perceptron Neural Network? [closed]

I created a perceptron neural network to understand the concept well. My goal would be to define what an orange is, by its numbers of chemical elements and what is an apple by the same formula. Is it a neural network of just one layer , would I...
asked by 17.07.2017 / 16:09
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Algorithm involving statistics

I am working on a CBT project that used neural networks in MATLAB as a universal approximation of functions, and obtained very good results: more than 70% of the samples present a relative error of less than 10% in relation to the real value, an...
asked by 23.01.2017 / 02:46
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Neural Network in R - Input Data

I'm having a problem in the input data of a neural network, I'm working with entries of 5000 pairs of numbers, these numbers are shifts in X and Y, ie based on the previous frame and the current frame I can see which was the displacement and thu...
asked by 18.09.2018 / 05:04
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Problem in compiling code in Keras

I was creating a simple classifier in Keras in Python3, but I'm getting the same error message:    RuntimeError: You must compile your model before using it. Follow the code: import keras from keras.layers import Activation, MaxPooling2...
asked by 26.06.2018 / 23:00
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Is there any function for OpenCV native Plot?

I want to plot a vector that contains error values extracted from a neural network to analyze the curve.     
asked by 01.04.2018 / 02:24
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RNA training phase - Artificial Neural Network in Weka

I'm developing software that allows users to create new RNAs. When creating a new MultilayerPerceptron RNA in Weka, is the testing phase already performed by the lib routines or do you need to develop training routines separately?     
asked by 14.11.2017 / 23:20
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Learning in neural networks

How does learning in neural networks occur? What is the concept behind? What is your relationship with "Deep Learning"?     
asked by 22.08.2015 / 12:16