Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 326

How can we perfrom pre fitted standard scalar inverse transform on y variable in pipeline

I want to create pipeline which will inverse transform the y variable after model prediction I have 3 pickle files:X variable scalar transform pre fitted object :-X sclrY variable...

Asked on 08/12/2020

0 answer

How to calculate accuracy, precision and recall, and F1 score for a keras sequential model?

I want to calculate accuracy, precision and recall, and F1 score for multi-class classification problem. I am using these lines of code mentioned below.from keras import backend as Kdef...

Asked on 08/12/2020 by user85181

1 answer

Brain Connectogram or Connectivity Visualization

Can anybody please guide me how can I draw the following figure in my windows 10 environment, I mean is there some built-in online tool or software that I can...

Asked on 08/10/2020 by Naseer

1 answer

Using previous hour's value in time series data for inclusion in random forest

I have a training data set, which is something like the following:hour windspeed pollution0 ...

Asked on 08/10/2020 by compguy24

0 answer

How to play with .cat.codes and get_dummies

I may be lost here and this might be a stupid question.I know that get_dummies returns multiple columns depending upon the number of variables and .cat.code returns a single...

Asked on 08/10/2020 by Chandraraj Singh

1 answer

How to deal with mixed type features?

I'm working on a dataset with more than 2000 features. Most of the features contain both numerical values and categorical features. For example, in the feature represents how long has...

Asked on 08/09/2020 by MMMMMay

2 answer

My small script on value alteration in columns of a data not working

I have a data set which has "Speed" as one of the columns (features). The column contains both zero and non-zero values. I want to randomly set 10% of the...

Asked on 08/09/2020 by Elvin Ugonna

1 answer

Measuring performance of different classifiers with different sample sizes

I'm currently using several different classifiers on various entities extracted from text, and using precision/recall as a summary of how well each separate classifier performs across a given dataset. I'm...

Asked on 08/08/2020 by Dave Challis

3 answer

How to give name to topics created using LDA?

I have categorized 800,000 documents into 500 categories using the Mahout topic modelling. Instead of representing the topic using the top 5/10 words for each topics, I want to infer...

Asked on 08/08/2020 by adihere

4 answer

Back propagation through a simple convolutional neural network

Hi I am working on a simple convolution neural network (image attached below). The input image is 5x5, the kernel is 2x2 and it undergoes a ReLU activation function. After...

Asked on 08/07/2020 by cdr

1 answer

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