IDFC FIRST Bank Data Scientist Interview Questions and Answers for Experienced

Q1. Machine learning questions
Add your answer

Project Discussion on Eye flue detection

Q1. Explain previous projects
Add your answer
Q2. Explain 2 algo of your choice
Add your answer

Q1. Logistic regression loss function
Add your answer
Q2. Step function in ML context
Ans. 
Step function is a function that returns a constant value for a certain range of inputs.
• In machine learning, step functions are used as activation functions in neural networks.

• They are typically used in binary classification problems where the output is either 0 or 1.

• Examples include Heaviside step function and sigmoid step function.
Answered by AI
Add your answer

Q1. What do you do if your model has higher false positives
Ans. 
Investigate the model performance metrics and adjust the threshold for classification.
• Analyze the confusion matrix to understand the distribution of false positives.

• Adjust the threshold for classification to reduce false positives.

• Consider using different evaluation metrics like precision, recall, and F1 score.

• Explore feature importance to identify variables contributing to false positives.
Answered by AI
Add your answer

If else conditions, data merging, datetime conversions, EDA on a sample data set, duplicates removal and missing value imputation

Q1. If you have to sell a kids account, how will you Target the customer. What features will you build?
Ans. 
To target customers for a kids account, focus on features like parental controls, educational content, and interactive games.
• Implement parental controls to assure parents of child safety online.

• Include educational content to attract parents looking for learning opportunities.

• Incorporate interactive games to engage children and make the account more appealing.

• Offer rewards or incentives for completing educational activi...read more
Answered by AI
Add your answer

Coding related objective questions

Q1. Basic questions based on cv. Questions based on python,SQL,ML algorithms
Add your answer