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Data Science : Recent Questions and Answers (Page 257)

Find answers to your questions about Data Science or help others by answering their Data Science questions.

Using autoencoder for time series prediction

I was recently reading a paper on time series prediction using deep learning methods. There I found a technique named "Variational Autoencoder" to predict time series data. I understand how...

Asked on 01/05/2021 by Shariful Islam

0 answer

Improving the pix2pix Architecture for Sketch to Image Translation on a Dataset of Sketches of People to Photos of People

For a university project I need to create a neural network which translates sketches of people into images.In order to implement such a neural network, I decided to implement...

Asked on 01/05/2021

1 answer

multilayer perceptron do not converge

I have been coding my own multi layer perceptron in MATLAB and it can be compiled without error. My training data features,x, has values from 1 to 360, and training...

Asked on 01/04/2021 by userFarkill

1 answer

Weighted mean with summarise_at dplyr

I strictly need to use the summarise_at to compute a weighted mean, with weights based on the values of another column df %>% summarise_at(.vars = vars(FACTOR,tv:`smart...

Asked on 01/04/2021 by 3nomis

1 answer

Same accuracy on KNN for different distance metrics

I am new to data analysis and I am trying to run a kNN classifier on a lung cancer dataset with multiple attributes. For all k values I tasted (1...

Asked on 01/04/2021

0 answer

Keras lstm equations, matrices and diagram

I was reading this post, mainly the LSTM equation section for understand the structure diagram and relate it with the matrices and I can deducted this cell...

Asked on 01/04/2021 by Caeta

0 answer

LightFm - replicate precision@k score with predict vs. predict_rank method

LightFm has two methods to predict: predict() and predict_rank(). The evaluation function precision_at_k is based on the predict_rank function. Since I have many items to rank for each user, the...

Asked on 01/04/2021 by TinaW

1 answer

What are the motion planning benchmarks?

Suppose I wanted to try and improve on existing motion planning algorithms. What benchmarks should I be trying to beat? Papers with code site has no motion planning benchmarks. I...

Asked on 01/04/2021 by seed

0 answer

How to interprete percentile information from the describe function in Pandas?

I am a bit stumped on how to interpret the percentile information you see when you call the describe function on dataframes in Pandas. I believe I have a basic...

Asked on 01/04/2021

3 answer

Intensity image to RGB for transfert learning

My goal is to use a pre-trained model with intensity based image. Most pre-trained model expect RGB (int) format as input image.An easy workaround is to dupplicate the intensity...

Asked on 01/04/2021 by Chopin

1 answer

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