512 interview questions for Data Scientist (2024)

26 votes1144 runs1 comment

23 votes2002 runs0 comment

14 votes1499 runs0 comment

Théoat Mar 28, 2022

12 votes1930 runs1 comment

12 votes599 runs0 comment

machine learning

deep learning

Martinat Sep 19, 2022

11 votes1977 runs0 comment

10 votes875 runs0 comment

machine learning

missing data

Martinat Apr 4, 2022

9 votes1987 runs0 comment

9 votes1969 runs0 comment

8 votes1928 runs4 comments

8 votes1884 runs0 comment

8 votes757 runs1 comment

7 votes1544 runs0 comment

Théoat Jan 23, 2023

7 votes1356 runs0 comment

Théoat Mar 28, 2022

7 votes785 runs0 comment

machine learning

missing data

Martinat Apr 4, 2022

7 votes664 runs0 comment

scikit-learn

logistic regression

7 votes623 runs0 comment

Martinat Mar 14, 2022

6 votes850 runs0 comment

hyperparameters

Martinat Mar 15, 2022

6 votes663 runs0 comment

neural network

back propagation

6 votes423 runs0 comment

NLP (Natural language processing)

named entity recognition

512 interview questionsfor Data Scientist (2024)

Test your technical skills before an interview of Data Scientist with 512 corrected questions. Beginner, Intermediate or Expert level.

512 interview questionsfor Data Scientist (2024)

Test your technical skills before an interview of Data Scientist with 512 corrected questions. Beginner, Intermediate or Expert level.

Write a Python function that returns the factorial of a number.

Write a SQL query to retrieve the list of employees with a salary greater than 5100.

Write a Python function that prints the elements of a list.

Update a column in an SQL table

What is the relation between Artificial intelligence (AI), machine learning and deep learning?

Select only distinct values in a column using SQL

How to handle missing data in a given training data set ?

Write a SQL query to insert data into a table

Which SQL keyword is used to sort the result of a SELECT statement?

Write the SQL query to delete a column from a table

Write a SQL query to retrieve the products with a price less than 1000 and sort the results in descending order of price.

Write a SQL query to retrieve the titles of books written by 'John Smith'.

Start a HTTP server from the CLI with python

Use the zip() function to iterate over two lists in parallel.

How to handle missing data in a given training data set ?

What is the value of the decision threshold used with logistic regression in Scikit-learn?

What is the missing word in the following sentence: Overfitting is the production of a model that corresponds too closely to the training data set and may therefore fail to fit other data sets and so fail to perform any reliable forecast.

The validation set is used to provide frequent and unbiased evaluations of the model’s fit on the training set while tuning its hyperparameters/parameters: in other words,the model is found and then tested on the validation set before to be improved once again.

How is the error calculated during back propagation in a neural network?

What does NER mean?