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I applied via Referral and was interviewed in Dec 2021. There were 3 interview rounds.
Sql based questions on hackerrank.
Top trending discussions
Use SQL with joins to find user with highest restaurant order
Use JOIN to connect user table with order table
Group by user and sum the order amounts
Order by sum in descending order and limit to 1 result
Statistical Analysis related questions
I applied via LinkedIn and was interviewed before Jun 2023. There was 1 interview round.
SQL test on hackerrank
I applied via Job Portal and was interviewed in Nov 2024. There were 3 interview rounds.
SQL and Python coding test
Logistic regression is a statistical model used to predict the probability of a binary outcome based on one or more predictor variables.
Logistic regression is used when the dependent variable is binary (0/1, True/False, Yes/No, etc.)
It estimates the probability that a given input belongs to a particular category.
The model calculates the odds of the event happening.
It uses a logistic function to map the input values to ...
Random forest is an ensemble learning method that builds multiple decision trees and merges them to improve accuracy and prevent overfitting.
Random forest is a type of ensemble learning method.
It builds multiple decision trees during training.
Each tree is built using a subset of the training data and a random subset of features.
The final prediction is made by averaging the predictions of all the individual trees.
Random...
Decision trees are a popular machine learning algorithm used for classification and regression tasks.
Decision trees are a flowchart-like structure where each internal node represents a feature or attribute, each branch represents a decision rule, and each leaf node represents the outcome.
They are easy to interpret and visualize, making them popular for exploratory data analysis.
Decision trees can handle both numerical ...
In the next 5 years, I see myself growing into a senior data scientist role, leading projects and mentoring junior team members.
Continuing to enhance my skills in data analysis, machine learning, and programming languages such as Python and R
Taking on more responsibilities in project management and client interactions
Working towards becoming a subject matter expert in a specific industry or domain
Mentoring and guiding ...
I was a student pursuing my undergraduate degree in Computer Science.
5 years back, I was studying Computer Science in college.
Now, I have completed my degree and gained experience in data science through internships and projects.
I have developed strong analytical and programming skills over the past 5 years.
I have also learned new technologies and tools in the field of data science.
I have a better understanding of real
In the second technical round interview asked me about advanced sql topics, theory questions and two coding questions in joins and window functions.
Approach involves data preprocessing, model training, evaluation, and interpretation.
Perform data preprocessing such as handling missing values, encoding categorical variables, and scaling features.
Split the data into training and testing sets.
Train the logistic regression model on the training data.
Evaluate the model using metrics like accuracy, precision, recall, and F1 score.
Interpret the model coefficients to under...
I would seek opportunities to apply my skills in related fields within the company.
Explore other departments or teams within the company that may have projects related to my field of interest
Offer to collaborate with colleagues in different departments to bring a new perspective to their projects
Seek out professional development opportunities to expand my skills and knowledge in related areas
I applied via campus placement at Institute of Technology, Banaras Hindu University and was interviewed in Sep 2024. There was 1 interview round.
Decision tree is a tree-like model of decisions and their possible consequences, while random forest is an ensemble learning method that builds multiple decision trees and merges them together.
Decision tree is a flowchart-like structure where each internal node represents a decision based on an attribute, each branch represents the outcome of the decision, and each leaf node represents a class label.
Random forest is a ...
posted on 21 May 2024
I applied via Referral and was interviewed in Apr 2024. There were 2 interview rounds.
I applied via campus placement at Birla Institute of Technology and Science (BITS), Pilani and was interviewed in Dec 2023. There were 2 interview rounds.
The first round was a 45 min long aptitude and case study round which involved basic aptitude questions along with certain cases like "There has been a drop off in customers booking a hotel though the the total number of visits to the site has not dropped. How would you you design a system to analyze the problem and what kind of data will you collect." It was followed by a couple of HR questions
A mock data set of hotel bookings in different countries for last two years were given a week prior to the interview. We were to clean, prepare, derive insights and recommend actions. All of this needed to be documented as 15 page presentation. This presentation then needed to be presented in a 45 min meet.
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