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Recent questions tagged data-science

2 2 votes
2 answers 2 answers
3.3k
3.3k views
How can I prove that following is a tautology (using laws of logical equivalences)
$(p → q) ∧ (q → r) → (p → r)$Without Truth Tables!
1 1 vote
1 answers 1 answer
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How to filter a dataframe?
Consider the Pandas DataDrame df below. Filter it appropriately so that it outputs the shown results.gh owner language repo stars 0 pandas-dev python pandas 17800 1 tidyv...
0 0 votes
1 1 answer
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589 views
Can anyone please solve Q7 pg 329 in Induction?
1 1 vote
0 0 answers
485
485 views
Individual and group relative strength in a fixed pool of players: How to approach the problem?
I apologize in advance if my question sounds too basic to be worthy of anyone's time, but statistics are not part of my curriculum.I am developing a proof of concept of a...
1 1 vote
1 1 answer
740
740 views
ideas and opinion on what kind of analyses needs to be done
Hello Guys,I have been given a task where I need to analyse the impact of all the products that were discontinued last year on the customers and sales? I work for a retai...
0 0 votes
1 1 answer
758
758 views
What are the most important Python libraries for data science?
1 1 vote
0 0 answers
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503 views
Using aggregate data to generate observation-level data statistically sound?
Context: In the realm of Paid Search Marketing. Current reporting does not provide event level data only aggregate totals with different segments. Want to compare distri...
1 1 vote
1 1 answer
637
637 views
What are the available libraries for continuous time hidden markov models ?
0 0 votes
1 1 answer
733
733 views
Is digital marketing and marketing internships worth it for a data science student?
it's about data science career
1 1 vote
1 1 answer
2.8k
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How do I reduce RMSE in a Random Forest Regressor?
I preprocessed the data, normalized the numerical features, and did one hot encoding for the categorical ones. I end up with a model with R^2=0.7 and RMSE which is 15% of...
1 1 vote
1 1 answer
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1.4k views
Determine weights on the paths that connect to the different data points in a neural network?
How do you determine the weight values that connect to the other data points when solving for our output in neural networks?
1 1 vote
1 1 answer
652
652 views
I fit a many different models to my data set and I still get horrible accuracy. Any suggestions?
I'm trying to create a regression with a data set that does not contain any nulls and has a very few outliers. I fit a linear regression, a random forest, and a gbm model...
1 1 vote
1 1 answer
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1.2k views
How do you visualize/present the predicted output of a random forest model with large trees?
I’ve heard that it’s hard to visualize the output of random forest models with large trees/forest but I’m finding it hard to understand what the use case for the model i...
1 1 vote
1 1 answer
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2.4k views
Do you have a cheatsheet for Data Science?!
1 1 vote
1 1 answer
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826 views
What is degree of Freedom while calculating confidence interval?
0 0 votes
1 1 answer
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736 views
What is 'Degrees of Freedom'?
What is 'Degrees of Freedom'?
1 1 vote
1 1 answer
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14.1k views
What is the difference between univariate and multivariate analysis?
1 1 vote
1 1 answer
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How will you create a classification to identify key customer trends in unstructured data?
1 1 vote
1 1 answer
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1.1k views
Explain the typical data analysis process.
1 1 vote
1 1 answer
925
925 views
What is the difference between Data Mining and Data Analysis?
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