Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 234

Survival Analysis: Pseudo Observation Vs Stratified Cox Regression. Which one is better?

I've been looking into the Cox Regression method for Survival Analysis in Churn Prediction. Cox regression will allow us to determine the probability that a subscriber will unsubscribe after a...

Asked on 01/28/2021 by Ajay H

1 answer

How to run tensorflow model twice before computing the loss

I want to compute a loss function which uses output of the network twice on different inputs. For example as hypothetically,first_output = model(first_input)second_output = model(second_input)loss = mean_absolute_error(first_output, second_output)How to...

Asked on 01/28/2021 by Odgiiv

1 answer

Knowing Feature Importance from Sparse Matrix

I was working with a dataset which had a textual column as well as numerical columns, so I used tfidf for textual column and created a sparse matrix, similarly for...

Asked on 01/28/2021

1 answer

Multiple regression (using machine learning - how plot data)

I wonder how I can use machine learning to plot multiple linear regression in a figure. I have one independent variable (prices of apartments) and five independent (floor, builtyear, roomnumber,...

Asked on 01/28/2021 by Hedd

1 answer

Predicting Bitcoin price with LSTM (and other RNNs)

In order to try what i learned about LSTM, i downloaded a simple bitcoin price dataset, and tried to make a network which predicts the bitcoin price by feeding a...

Asked on 01/27/2021 by lairv

1 answer

target variable prediction among possible answers

I have a dataset on which I would like to apply a Machine Learning algorithm for multi-class classification. An example of my target variable (in string format, will be later...

Asked on 01/27/2021 by davide m.

1 answer

Feature engineering and longitudinal data

I need some advice for my feature engineering.Suppose I have 90 days follow-up data. on 12 patients and I have the vital status of the patients at the end...

Asked on 01/27/2021

0 answer

The added layer must be an instance of class Layer. Found:

I don't know why BatchNormalization is giving the following error. Googled out but couldn't find any relevant answers My code appears to be this: ...

Asked on 01/27/2021 by Alvi Rahman

1 answer

Multiple input single output supervised learning ANN problem

I have a dataset of 120 tuples giving a singular output. I want to implement ANN in estimating the input which is affecting the output most. A case of optimising...

Asked on 01/27/2021 by Ayush Dixit

0 answer

Linear Discriminant - Least Squares Classification Bishop 4.1.3

Pls. refer section 4.1.3 in Pattern Recognition - Bishop: "Least squares for Classification": In a 2 class Linear Discriminat system, we classified vector $mathbf{x}$ as $mathcal{C}_1$ if...

Asked on 01/27/2021 by Continue2Learn

1 answer

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