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Data Science : Recent Questions and Answers (Page 112)

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

Dividing a dataset to parallelize machine learning training on the cloud

I'm very new to machine learning. I am doing a project for a subject called parallel and distributed computing, in which we have to speed up a heavy computation using...

Asked on 06/07/2021 by ptushev

1 answer

How to group identical values and count their frequency in Python?

Newbie to analytics with Python so please be gentle :-) I couldn't find the answer to this question - apologies if it is already answered elsewhere in a different format....

Asked on 06/07/2021 by new_analyst

3 answer

Should I keep common stop-words when preprocessing for word embedding?

If I want to construct a word embedding by predicting a target word given context words, is it better to remove stop words or keep them?the quick brown fox jumped...

Asked on 06/07/2021

2 answer

Text classification of an imbalanced dataset

I have a dataset with size ~ 500k...

Asked on 06/07/2021

0 answer

Did I do the right thing in my CNN Keras (class imbalance - augmentation)

To implement my Binary CNN in keras, I had a dataset of ~~35000 images but only 700 is from one class and all the others are from the other class,...

Asked on 06/06/2021 by jed1

0 answer

how to handle outliers for clustering algorithms?

I am wondering what's the best way to handle outliers when using non-supervised clustering algorithms?...

Asked on 06/06/2021

2 answer

How to set class_weight parameter for cost sensitive learning?

I'm dealing with a binary classification problem with a balanced data set, however false positives are much more costly than false negatives. Let's just say that an FP is in...

Asked on 06/06/2021

1 answer

Manually building and visualising a decision tree

I am currently working on a decision tree for predicting the average of a binary outcome with a small number of categorical features (think predicting the survival rate in the...

Asked on 06/06/2021

0 answer

Create a random chi-Square independence distribution with a given p-Value

I want to randomly create a table of data that has a predefined p-Value and chi-Value of a chi-square distribution. For example this would have a p-Value of 1 on...

Asked on 06/06/2021 by Cowboy_Patrick

0 answer

How useful is Bayesian Inference

Last few months, I had been exposed to Bayesian Inference in ML courseWith further investigation, I come to place where there is MCMC technique to simulate the posterior distribution....

Asked on 06/06/2021 by chris tan

2 answer

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