Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 225

Prediction: plugin a corelation table (neuron) into a Time-Series Neuron in Keras/ TF

i am adding more details I have a time series of Babies (1,2,3) showing how many problem they have each week (Born week 1 to week 80) and in which...

Asked on 02/06/2021 by MarcusM

1 answer

Will images modification get me a better machine learning model?

Will images modification get me a better machine learning model? I have the following scenario. Camera is fixed and does photos of a process. The process has a few states....

Asked on 02/06/2021 by manymanymore

1 answer

Good mathematically explained algorithm for Hyperparameter Optimization (Bayesian) for implementing in Java

I have implemented Random Forest, Bagging, Gradient Boosting, etc... in java myself. It took a long time to complete these machine learning algorithm codes. But at last all of them...

Asked on 02/06/2021 by abcdmath

0 answer

Back propagation on matrix of weights

I am trying to implement a Neural Network for binary classification using python and numpy only. My network structure is as follows:input features: 2 [1X2] matrixHidden layer1: 5...

Asked on 02/06/2021 by deep_learner

1 answer

rows to columns in data.table R (or Python)

This is something I can't achieve with the reshape2 library for R. I have the following data: zone code ...

Asked on 02/06/2021 by cpumar

4 answer

How to implement a Fourier Convolution layer in keras?

I'm currently investigating the paper FCNN: Fourier Convolutional NeuralNetworks. The main contribution of the paper is that CNN training is entirely shifted to the Fourier domain without...

Asked on 02/05/2021 by deepsnow

1 answer

XGBoost: how to adjust the probabilities of a binary classifier to match training data?

Training and testing data have around 1% positives, but the model predicts only around 0.1% as positives. The model is an xgboost classifier. I’ve tried calibration but it didn’t...

Asked on 02/05/2021 by Henrique Nader

1 answer

How to visualise and choose parameters spectrogram tensorflow

I have audio of 3 min duration ,I have Waveform shape: (2880000,) so what should be the value for frame_length and frame_stepspectrogram = tf.signal.stft(waveform, frame_length=?, frame_step=?)spectrogram = tf.abs(spectrogram)On...

Asked on 02/05/2021 by aryan agarwal

0 answer

Modeling the influence of events order on probability

The case is to model if the sequence of events influences the probability of binary target variable. We have for example five different events which occur in time (event: A,B,C,D,E)....

Asked on 02/05/2021 by Luc

2 answer

Can my neural network learn conditional rules when classifying?

I'm concerned that I'm attempting the impossible with my neural network. This is the scenario: I have a 2D square world. In it, I create five circles of random size...

Asked on 02/05/2021

3 answer

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