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I applied via Company Website and was interviewed before Jan 2020. There was 1 interview round.
I applied via Campus Placement and was interviewed before Sep 2020. There were 3 interview rounds.
I applied via Referral and was interviewed in Mar 2021. There were 4 interview rounds.
Data science is the field of extracting insights and knowledge from data using various techniques and tools.
Data science involves collecting, cleaning, and analyzing data to extract insights.
It uses various techniques such as machine learning, statistical modeling, and data visualization.
Data science is used in various fields such as finance, healthcare, and marketing.
Examples of data science applications include fraud...
Python and R are programming languages commonly used in data science and statistical analysis.
Python is a general-purpose language with a large community and many libraries for data manipulation and machine learning.
R is a language specifically designed for statistical computing and graphics, with a wide range of packages for data analysis and visualization.
Both languages are popular choices for data scientists and hav...
I applied via Job Portal and was interviewed in Jan 2021. There were 3 interview rounds.
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 May 2024. There was 1 interview round.
Using pandas to manipulate dataframes through screen sharing coding.
Use pandas library in Python for data manipulation
Share screen to demonstrate coding techniques
Use functions like merge, groupby, and apply for data manipulation
Use Twitter API to extract tweets, perform text analysis to identify top discussed topics.
Access Twitter API to retrieve tweets
Perform text analysis using NLP techniques like TF-IDF or LDA
Identify keywords or hashtags with highest frequency to determine top discussed topics
Basic for loop question,
TCS
Accenture
Wipro
Cognizant