comScore Statistical Analyst Interview Questions and Answers

Q1. Question about Googlyness
Add your answer
Q2. Question about Google Lens, a RCA question
Add your answer

Q1. About projects and then questions related to ML and DL. Mostly focused on DL part
Add your answer
Q2. What is the difference between Adam optimizer and Gradient Descent Optimizer?
Ans. 
Adam optimizer is an extension to the Gradient Descent optimizer with adaptive learning rates and momentum.
• Adam optimizer combines the benefits of both AdaGrad and RMSProp optimizers.

• Adam optimizer uses adaptive learning rates for each parameter.

• Gradient Descent optimizer has a fixed learning rate for all parameters.

• Adam optimizer includes momentum to speed up convergence.

• Gradient Descent optimizer updates parameters b...read more
Answered by AI
Add your answer
Q3. When to use Relu and when not?
Ans. 
Use ReLU for hidden layers in deep neural networks, avoid for output layers.
• ReLU is commonly used in hidden layers to introduce non-linearity and speed up convergence.

• Avoid using ReLU in output layers for regression tasks as it can lead to vanishing gradients.

• Consider using Leaky ReLU or Sigmoid for output layers depending on the task.

• ReLU is computationally efficient and helps in preventing the vanishing gradient prob...read more
Answered by AI
Add your answer

Q1. Asked about projects. What is classification? Is knn used for regression?how? decision tree working for regression and classification Is naive Bayes used for regression?how? LLM Docker Aws GenAI Code for ...read more
Add your answer

Q1. Do you know power BI
Add your answer
Q2. Yes. I know PowerBI
Add your answer

Sql and python questions were there with basic logic check

Q1. Python code with funticion
Ans. 
Python code with function
• Define a function using 'def' keyword

• Include parameters inside parentheses

• Use 'return' statement to return a value from the function
Answered by AI
Add your answer
Q2. Sql with case statwment
Add your answer

Q1. How can Logistic regression be applied for multiclasstext classification
Ans. 
Logistic regression can be applied for multiclasstext classification by using one-vs-rest or softmax approach.
• One-vs-rest approach: Train a binary logistic regression model for each class, treating it as the positive class and the rest as the negative class.

• Softmax approach: Use the softmax function to transform the output of the logistic regression into probabilities for each class.

• Evaluate the model using appropriate...read more
Answered by AI
Add your answer

Aptitute,technical mcqs

Q1. Coding question
Add your answer
Q2. Oops concept,dbms,sql
Add your answer

Q1. Why are you changing the company
Add your answer
Q2. What are the skills you are looking for
Add your answer

Q1. What is distinct in SQL?
Ans. 
DISTINCT is used in SQL to retrieve unique values from a column or set of columns.
• DISTINCT eliminates duplicate rows from the result set

• It is often used in SELECT statements to only return unique values

• Example: SELECT DISTINCT column_name FROM table_name
Answered by AI
Add your answer
Q2. What are joins in SQL
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
Answered by AI
Add your answer