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Infiniti Research Data Scientist Interview Questions and Answers
Infiniti Research Data Scientist Interview Experiences
1 interview found
Anonymous
I applied via Naukri.com and was interviewed in Sep 2021. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Difference between loss function and cost function.
- Ans.
Loss function measures the error for a single training example, while cost function measures the average error for the entire training set.
Loss function is used to optimize the model parameters during training.
Cost function is used to evaluate the performance of the model after training.
Loss function is typically defined for a single training example.
Cost function is typically defined for the entire training set.
Exampl...
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I applied via Campus Placement and was interviewed in Feb 2021. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. How you will figure out how many WhatsApp user are there in world
- Ans.
Estimating the number of WhatsApp users worldwide requires a combination of data sources and statistical methods.
Collect data from WhatsApp's official reports and announcements
Use third-party analytics tools to estimate user numbers
Analyze demographic and geographic trends to extrapolate global user numbers
Consider factors such as population growth and smartphone adoption rates
Compare with similar messaging apps to val...
- Q2. Tell me about the how you will tackle a crude data for data analysis
- Ans.
I will start by understanding the data source and its quality, then clean and preprocess the data before performing exploratory data analysis.
Understand the data source and its quality
Clean and preprocess the data
Perform exploratory data analysis
Identify patterns and trends in the data
Use statistical methods to analyze the data
Visualize the data using graphs and charts
Iterate and refine the analysis as needed
Interview Preparation Tips
Skills evaluated in this interview
(2 Questions)
- Q1. Describe a project that you have worked on ?
- Q2. What algorithm you have worked upon ?
(2 Questions)
- Q1. What is PCA ?
- Q2. Basic sql questions
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Jun 2024. There were 2 interview rounds.
Simple Aptitude questions, Data interpretation and verbal
(3 Questions)
- Q1. Basic questions on Data Analytics, Projects mentioned
- Q2. Code in SQL and python(moderate)
- Ans.
The candidate is asked to code in SQL and Python at a moderate level.
Use SQL to query data from databases
Use Python to manipulate and analyze data
Practice writing SQL queries and Python scripts
- Q3. Machine Learning
I applied via Campus Placement
1 hour aptitude test
(1 Question)
- Q1. What is one hot encoding
(1 Question)
- Q1. What is your long term goal
Selected
I applied via Approached by Company and was interviewed before Nov 2023. There were 2 interview rounds.
It was basic with puzzles and sql
Case study about a pharma company entering a new market, customer segmentation and also past projects discussion.
Infiniti Research HR Interview Questions
Interview Preparation Tips
Experience: The questions were of medium to high difficulty. What set this test apart was the fact that each question had different weightage ranging from 0.5 to 3 marks per question. Time was a major factor. So my strategy was to attempt all the 1 and 1.5 marks questions which constitute the major chunk of the paper in around 40 minutes and spend the remaining 20 minutes for the 2 and 3 mark questions. I did not even bother reading the 0.5 mark questions. The 2 and 3 mark questions were difficult and those will differentiate you from others. 1600 students wrote the test and only 86 got shortlisted for the next round.
Duration: 60 minutes
Total Questions: 40
Round: Technical Interview
Experience: I was asked to write a C program to print the Fibonacci sequence and a basic SQL query. Apart from this I was asked a puzzle and other questions related to my resume. Out of the 86, only 26 students were called for the next round which again was a technical interview.
Round: Technical Interview
Experience: This was similar to the first technical interview. I had to write a C program to print the prime numbers between 1 and 100 and a puzzle was asked again. Apart from this a guesstimate to find the number of cars between 2 places was asked and a scenario based question too was asked. These were followed by resume related questions.
Round: HR Interview
Experience: All the 26 students who attended the second technical round were allowed to attend HR round as well. This was just for 4 - 5 minutes. I was asked about my family background and why I should be hired. My fondest memories from school days were asked too. Finally offer letter was given to 10 students out of the 1600 who wrote the test :P
General Tips: Just keep a calm head and attempt the questions. Ask for time to think if you are not able to answer the questions immediately. Be bold and confident. That is sufficient :)
Skills: Puzzle Solving Capability, Ability To Think, SQL, C Programming
College Name: VIT Vellore
Selected
I applied via Campus Placement
Normal Aptitude Test
Python or SQL coding round
I applied via Approached by Company and was interviewed in Nov 2023. There was 1 interview round.
(1 Question)
- Q1. Power bi , Dax , sql
I applied via Approached by Company and was interviewed in Oct 2023. There was 1 interview round.
(1 Question)
- Q1. Data Visualization, DAX, Data Modeling, Append & Merge
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Infiniti Research Data Scientist Reviews and Ratings
based on 4 reviews
Rating in categories
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