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Idfy Data Scientist Interview Questions and Answers

Updated 7 Aug 2024

Idfy Data Scientist Interview Experiences

1 interview found

Interview experience
3
Average
Difficulty level
-
Process Duration
Less than 2 weeks
Result
-

I applied via Referral and was interviewed before Aug 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. What is over fitting
  • Ans. 

    Overfitting occurs when a model learns the training data too well, leading to poor performance on new, unseen data.

    • Overfitting occurs when a model is too complex and captures noise in the training data.

    • It can be identified when a model performs well on training data but poorly on test data.

    • Techniques to prevent overfitting include cross-validation, regularization, and early stopping.

    • Example: A decision tree with too ma...

  • Answered by AI

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
2
Poor
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I applied via Campus Placement and was interviewed in Nov 2023. There were 2 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Tell me about your projects
  • Q2. What do you know about mutual funds
  • Ans. 

    Mutual funds are investment vehicles that pool money from multiple investors to invest in a diversified portfolio of securities.

    • Mutual funds are managed by professional fund managers who make investment decisions on behalf of the investors.

    • Investors can buy shares of mutual funds, which represent their ownership in the fund's portfolio.

    • Mutual funds offer diversification, liquidity, and professional management to invest...

  • Answered by AI
Round 2 - HR 

(2 Questions)

  • Q1. Do you have prior experience with ML
  • Q2. What are your long term plans

Interview Preparation Tips

Interview preparation tips for other job seekers - I'll advice not to go for second rate companies like these.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before May 2023. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Machine learning algorithms
  • Ans. 

    Machine learning algorithms are used to analyze data and make predictions or decisions without being explicitly programmed.

    • Machine learning algorithms can be categorized into supervised, unsupervised, and reinforcement learning.

    • Examples of machine learning algorithms include linear regression, decision trees, support vector machines, and neural networks.

    • These algorithms learn from data to improve their performance over...

  • Answered by AI
  • Q2. SQL basics and basic knowledge of security products
Round 2 - HR 

(1 Question)

  • Q1. Very lengthy process and delayed a lot

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Jul 2023. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. Explain any Data Science project
  • Ans. 

    Developed a predictive model to forecast customer churn for a telecommunications company.

    • Identified key features such as customer tenure, monthly charges, and service usage

    • Collected and cleaned data from customer databases

    • Built a machine learning model using logistic regression or random forest algorithms

    • Evaluated model performance using metrics like accuracy, precision, and recall

    • Provided actionable insights to reduce

  • Answered by AI
  • Q2. Types of Error in Statistics
  • Ans. 

    Types of errors in statistics include sampling error, measurement error, and non-sampling error.

    • Sampling error occurs when the sample does not represent the population accurately.

    • Measurement error is caused by inaccuracies in data collection or measurement instruments.

    • Non-sampling error includes errors in data processing, analysis, and interpretation.

    • Examples: Sampling error - selecting a biased sample, Measurement err...

  • Answered by AI
  • Q3. Types of Machine learning models
  • Ans. 

    Types of machine learning models include supervised learning, unsupervised learning, and reinforcement learning.

    • Supervised learning: Models learn from labeled data, making predictions based on past examples (e.g. linear regression, support vector machines)

    • Unsupervised learning: Models find patterns in unlabeled data, clustering similar data points together (e.g. k-means clustering, PCA)

    • Reinforcement learning: Models le...

  • Answered by AI
  • Q4. Functions of pandas library, such as get_dummies()
  • Ans. 

    get_dummies() function in pandas library is used to convert categorical variables into dummy/indicator variables.

    • get_dummies() function creates dummy variables for categorical columns in a DataFrame.

    • It converts categorical variables into numerical representation for machine learning models.

    • Example: df = pd.get_dummies(df, columns=['column_name'])

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - On campus interview, Be confident, be good at project explaination.

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Jan 2021. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Questions were mainly based on past role and work experience
  • Q2. Have you worked on customer segmentation?
  • Ans. 

    Yes, I have worked on customer segmentation.

    • I have used clustering algorithms like K-means and hierarchical clustering to segment customers based on their behavior and demographics.

    • I have also used decision trees and random forests to identify the most important features for segmentation.

    • I have experience with both supervised and unsupervised learning techniques for customer segmentation.

    • I have worked on projects where...

  • Answered by AI
  • Q3. In depth interview on tools worked upon

Interview Preparation Tips

Interview preparation tips for other job seekers - Give genuine answers of you have not worked on any of the tools feel free to tell the same. That won't affect your interview.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Aptitude Test 

Konwledge of document and excell

Interview Preparation Tips

Interview preparation tips for other job seekers - Compurer, Laptop and Mobile
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in

Round 1 - HR 

(1 Question)

  • Q1. Self intro , normal question like background
Round 2 - One-on-one 

(1 Question)

  • Q1. About differ based on what the role you looking for , basically mutual fund questions and and Excel

Interview Preparation Tips

Interview preparation tips for other job seekers - Mutual fund, Excel,- it is enough for freshers

I applied via Naukri.com and was interviewed before May 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Mvc,jquery,sql

Interview Preparation Tips

Interview preparation tips for other job seekers - Clear your basiscs
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Basic questions regarding c# and sql
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Dec 2023. There were 3 interview rounds.

Round 1 - Coding Test 

Few questions were given on strings and linked list.

Round 2 - Group Discussion 

Is AI good or bad .

Round 3 - One-on-one 

(2 Questions)

  • Q1. Mostly HR based questions.
  • Q2. Some are related to our project's.
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Idfy Interview FAQs

How many rounds are there in Idfy Data Scientist interview?
Idfy interview process usually has 1 rounds. The most common rounds in the Idfy interview process are Technical.

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