Aviva Global Services Data Scientist Interview Questions and Answers

60 min hackerrank test,with one mysql medium difficulty question and one python medium/little hard level difficulty

Q1. Technical covering each topic from stats, python, ml, dl, nlp,project
Add your answer

Q1. Project-related in-depth discussion, few case scenarios, stats question
Add your answer

Q1. What are hyperparameters in random forest
Ans. 
Hyperparameters in random forest are parameters that are set before the learning process begins.
• Hyperparameters control the behavior of the random forest algorithm.

• They are set by the data scientist and are not learned from the data.

• Examples of hyperparameters in random forest include the number of trees, the maximum depth of trees, and the number of features considered at each split.
Answered by AI
Add your answer
Q2. How to do QnA system with LLM
Ans. 
A QnA system with LLM is a system that uses the Language Model for Information Retrieval and Question Answering.
• Preprocess the input question and convert it into a format suitable for the LLM model.

• Fine-tune the LLM model on a dataset of question-answer pairs.

• Use the fine-tuned model to generate answers for new questions.

• Evaluate the performance of the QnA system using metrics like precision, recall, and F1 score.

• Itera...read more
Answered by AI
Add your answer
Q3. How to do unit testing
Ans. 
Unit testing is a process of testing individual units of code to ensure they function correctly.
• Write test cases for each unit of code

• Test inputs, outputs, and edge cases

• Use testing frameworks like JUnit or pytest

• Automate tests to run regularly

• Ensure tests are independent, isolated, and repeatable
Answered by AI
Add your answer

It was of hackerrank and 2 question

Q1. All ml dl questions were asked
Add your answer
Q2. All time series asked
Add your answer