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I applied via Referral and was interviewed in May 2024. There was 1 interview round.
I solved a problem by using machine learning algorithms to predict customer churn for a telecom company.
Identified relevant data sources such as customer demographics, usage patterns, and customer service interactions.
Preprocessed and cleaned the data to handle missing values and outliers.
Built and trained a machine learning model using algorithms like logistic regression and random forest.
Evaluated the model's perform...
I expect a supportive work environment, opportunities for growth, and clear communication.
Clear communication on project goals and expectations
Opportunities for professional development and growth
Supportive team environment
Regular feedback and performance evaluations
Visa interview questions for designations
Top trending discussions
I applied via Campus Placement and was interviewed before Feb 2019. There were 3 interview rounds.
To choose optimum probability threshold from ROC, we need to balance between sensitivity and specificity.
Choose the threshold that maximizes the sum of sensitivity and specificity
Use Youden's J statistic to find the optimal threshold
Consider the cost of false positives and false negatives
Use cross-validation to evaluate the performance of different thresholds
To test time series trend break up, statistical tests like Augmented Dickey-Fuller test can be used.
Augmented Dickey-Fuller test can be used to check if a time series is stationary or not.
If the time series is not stationary, we can use differencing to make it stationary.
After differencing, we can again perform the Augmented Dickey-Fuller test to check for stationarity.
If there is a significant change in the mean or va...
Communicate transparently and offer alternative solutions.
Explain the limitations of the available data and the potential risks of making decisions based on incomplete information.
Offer alternative solutions that can be implemented with the available data.
Collaborate with the customer to identify additional data sources or explore other options to gather more data.
Provide regular updates on the progress of data collect...
I applied via LinkedIn and was interviewed in Apr 2023. There were 3 interview rounds.
A Hackerank test with 2 SQL questions and 7 MCQ questions on Probablity,Naive Bayes,Excel 7 some Graph analysis questions
Python, general data related coding
I applied via Recruitment Consulltant and was interviewed before Sep 2023. There were 2 interview rounds.
SQL and python questions
Regarding some puzzles and guestimate
based on 2 interviews
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