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GrowthJockey Data Scientist Interview Questions and Answers
GrowthJockey Data Scientist Interview Experiences
1 interview found
Anonymous
Selected
I applied via Referral and was interviewed before Oct 2023. There was 1 interview round.
(2 Questions)
- Q1. How does K-Means Work
- Ans.
K-Means is a clustering algorithm that partitions data into K clusters based on similarity.
Initializes K centroids randomly
Assigns each data point to the nearest centroid
Calculates new centroids based on the mean of data points in each cluster
Repeats until centroids no longer change or a specified number of iterations is reached
- Q2. Mathematics behind image classification in neural networks
- Ans.
Image classification in neural networks involves using mathematical algorithms to analyze and categorize images.
Neural networks use mathematical functions to process pixel values and extract features from images.
Common mathematical techniques include convolutional layers, activation functions, and loss functions.
Examples of image classification tasks include identifying objects in photos, detecting diseases in medical
Skills evaluated in this interview
Data Scientist Jobs at GrowthJockey
Top trending discussions
Interview questions from similar companies
I applied via Recruitment Consultant and was interviewed in Sep 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Machine learning concepts[Regression and classification] ,Python and Sql Basics
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Please tell me something about yourself.What is your experience? What are your goals and ambitions?Why We should hire you? Strengths and weaknesses etc.
I applied via Campus Placement and was interviewed before Sep 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Nothing much technical
Interview Preparation Tips
2. Fluency in English is important (depends on interview panel)
3. Clarity on what your talking about
I applied via Approached by Company and was interviewed before Sep 2021. There were 3 interview rounds.
Explain dynamic programming with memoization
(2 Questions)
- Q1. Where are you from, and why are you joining the company
- Q2. Why are you joining the company
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Basic ML
Interview Questionnaire
4 Questions
- Q1. Explain your project in data science.
- Q2. Why do you want to join here?
- Q3. Can you write a code to identify prime no between two no?
- Ans.
Code to identify prime numbers between two given numbers.
Create a function that takes two numbers as input.
Loop through the range of numbers between the two inputs.
Check if each number is divisible by any number other than 1 and itself.
If not, add it to a list of prime numbers.
Return the list of prime numbers.
- Q4. Can you write sql query to find unique values of a column from a table and get the mean value against each category?
Skills evaluated in this interview
I applied via Job Portal and was interviewed in Jan 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Basic Hypothesis Understanding !
- Q2. Apache Spark and Data Frames
Interview Preparation Tips
Interview Questionnaire
2 Questions
- Q1. Project related, domain knowledge
- Q2. Explain your past projects in detail. Machine learning algorithms. Hyperparamater tuning, cross validation, evaluation metrics
- Ans.
I have worked on various projects involving machine learning algorithms, hyperparameter tuning, cross validation, and evaluation metrics.
Developed a predictive model for customer churn using logistic regression and decision trees
Used random forest algorithm for image classification in a computer vision project
Implemented hyperparameter tuning using grid search and randomized search for a sentiment analysis project
Evalu...
I applied via Naukri.com and was interviewed in Jul 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Project Discussion… Question on Machine Learning algorithms, Stats, Sql
Interview Preparation Tips
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GrowthJockey Data Scientist Interview Process
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