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Recent questions tagged neural

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neural network - What's the difference between sparse_softmax_cross_entropy_with_logits and softmax_cross_entropy_with_logits?

I recently came across tf.nn.sparse_softmax_cross_entropy_with_logits and I can not figure out what the difference is ... one-hot encoded training data/vectors? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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941 views

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neural network - Test labels for regression caffe, float not allowed?

I am doing regression using caffe, and my test.txt and train.txt files are like this: /home/foo/caffe/data/ ... CSV data might be of help. Thanks to @Shai. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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874 views

1 answer

neural network - Keras input explanation: input_shape, units, batch_size, dim, etc

For any Keras layer (Layer class), can someone explain how to understand the difference between input_shape, units, ... the layers - with the image below? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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803 views

1 answer

neural network - Loss & accuracy - Are these reasonable learning curves?

I am learning neural networks and I built a simple one in Keras for the iris dataset classification from the UCI ... ='Validation') ax.legend() fig.show() Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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neural network - Inplace parameter updation without torch.no_grad()

I have just started learning this awesome tool called PyTorch but sadly I am stuck in an equivocal ... /questions/65842822/inplace-parameter-updation-without-torch-no-grad...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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958 views

1 answer

neural network - Tensorflowjs layer of both data and identifier

I am trying to map some categorical inputs combined with customer unique id to a single result property. ... com/questions/65871052/tensorflowjs-layer-of-both-data-and-identifier...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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969 views

1 answer

neural network - Probability Distributions as inputs to ARIMA

I am trying to forecast power demand for EV's and the data I have available is daily minute by ... stackoverflow.com/questions/65898770/probability-distributions-as-inputs-to-arima...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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956 views

1 answer

neural network - ANN why scaler is not fitted on test data?

Why it is trained only on train data? Scaler fitting doesn't matter only the regression / classification split matters? ... /65908650/ann-why-scaler-is-not-fitted-on-test-data...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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940 views

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neural network - What is the impact of the size of the hidden layer in Autoencoders

I am revisiting autoencoders recently and I found most of the discussions are on its relation to PCA. But there is ... -the-impact-of-the-size-of-the-hidden-layer-in-autoencoders...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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942 views

1 answer

neural network - How to convert images into a dataset for semantic segmentation

I am trying to make a new semantic segmentation model that will take grainy microscopy images as input and ... how-to-convert-images-into-a-dataset-for-semantic-segmentation...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

874 views

1 answer

neural network - How to custmize error function in neuralnet package in R ? I want to minimize MAPE

I developed neural network model using neuralnet package in R. But I wanted to use MAPE (mean absolute percentage error ... function-in-neuralnet-package-in-r-i-want-to-minimize-ma...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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831 views

1 answer

neural network - Is there software to implement search engines whose results changes according to user votes?

Is there any software that can be used to: Implement a simple word-match based search engine, with basic ... software-to-implement-search-engines-whose-results-changes-according-to...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

828 views

1 answer

neural network - Compute the mean square error at the end of each iteration and plot the same in matlab

i have a dataset to classify, using perceptron learning rule . i've calculated the weight matrix but don't know how to ... -error-at-the-end-of-each-iteration-and-plot-the-same-in...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

961 views

1 answer

neural network - What is the purpose of the add_loss function in Keras?

Currently I stumbled across variational autoencoders and tried to make them work on MNIST using keras. I found a tutorial ... what-is-the-purpose-of-the-add-loss-function-in-keras...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

866 views

1 answer

neural network - How to initialise fixed weights

I would like to fix the initial weights for the neural network I created. Currently, I have initialized ... //stackoverflow.com/questions/66045303/how-to-initialise-fixed-weights...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

983 views

1 answer

neural network - How to initialise fixed weights

I would like to fix the initial weights for the neural network I created. Currently, I have initialized ... //stackoverflow.com/questions/66045303/how-to-initialise-fixed-weights...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

neural network - Logistic regression implementation using NN

I have written this logistic regression code. # training loop w0 = -1 w1 = 1 b = 1 a = ... :https://stackoverflow.com/questions/66050981/logistic-regression-implementation-using-nn...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

926 views

1 answer

neural network - Logistic regression implementation using NN

I have written this logistic regression code. # training loop w0 = -1 w1 = 1 b = 1 a = ... :https://stackoverflow.com/questions/66050981/logistic-regression-implementation-using-nn...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.2k views

1 answer

neural network - How to get y_true, when working with keras flow_from_dataframe?

I am trying to plot ROC AUC curve of a multilable classification problem. For that I need 'y_true' and 'y_pred'. ... how-to-get-y-true-when-working-with-keras-flow-from-dataframe...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

923 views

1 answer

neural network - How to train DeepLearning4J model Using a Java Object... Cant find assistance anywhere on this question

I am working on a Phrase Input and Response System (Similar to SIRI) want to train a Model on how to detect a phrase ... (https://opennlp.apache.org/docs/1.9.3/manual/opennlp.html)...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

957 views

1 answer

neural network - Is there a way to fix weights and biases for a node in keras?

I am training an ANN model which must produce positive predictions ( e.g. length of some objects ). The way I ... ' the weights and biases for nodes/layers during training process....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

960 views

1 answer

neural network - How to custmize error function in neuralnet package in R ? I want to minimize MAPE

I developed neural network model using neuralnet package in R. But I wanted to use MAPE (mean absolute percentage ... neurons[[length.weights]], delta) : non-conformable arguments...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

982 views

1 answer

neural network - Why do we ignore past memory when performing back propagation for LSTM cells?

(As always, please notice I'm not an expert or even an engineer) I'm trying to understand backpropagation for LSTM ... appreciate any advice. Not an expert here, in any sense!...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

neural network - Using FCNN for multi-class semantic segmentation trained on single class labeled image data

I am working on project where main task is semantic segmentation of land cover and another objects in Sentinel 2 multi ... 7 classes ? Any suggestions or ideas are appreciated !...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.2k views

1 answer

neural network - How to find local gradient in this computational graph?

I am trying to find local gradient at w5,w4,w3,w2,w1. While I know how to calculate local gradient in a MLP but this being a computational graph, I am having some trouble....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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