fbpx

Interview Experiences

Cognizant Job Interview Experience, Role : Data Scientist

Job Interview Experiences Job Interview Experience For The Role Of Data Scientist at Cognizant Cognizant is an American multinational technology company that provides business consulting, information technology and outsourcing services. This company provides information technology, information security, consulting, ITO and BPO services. Cognizant includes services like business and technology consulting, systems integration, application development and …

Cognizant Job Interview Experience, Role : Data Scientist Read More »

IBM Job Interview Experience For The Role Of Data Scientist

Job Interview Experiences Job Interview Experience For The Role Of Data Scientist at IBM International Business Machines Corporation (IBM) is an American multinational technology company. IBM produces and sells computer hardware, middleware and software. It also provides hosting and consulting services in areas ranging from mainframe computers to nanotechnology. For the fiscal year 2020, IBM …

IBM Job Interview Experience For The Role Of Data Scientist Read More »

Job Interview Experience For The Role Of Data Scientist at Google

Job Interview Experiences Job Interview Experience For The Role Of Data Scientist at Google 1. Why do you use feature selection?2. What is the effect on the coefficients of logistic regression if two 3. predictors are highly correlated?4. What are the confidence intervals of the coefficients?5. What’s the difference between Gaussian Mixture Model and K-Means?6. …

Job Interview Experience For The Role Of Data Scientist at Google Read More »

Job Interview Experience For The Role Of Data Scientist at TCS

Job Interview Experiences Job Interview Experience For The Role Of Data Scientist at Tcs 1. Explain about Time series models you have used?2. SQL Questions – Group by Top 2 Salaries for Employees – use Row num and Partition3. Pandas find Numeric and Categorical Columns. For Numeric columns in Data frame, find the mean of the entire column …

Job Interview Experience For The Role Of Data Scientist at TCS Read More »

Job Interview Experience For The Role Of Data Scientist at Capital One

Job Interview Experiences Job Interview Experience For The Role Of Data Scientist at Capital One 1. How would you build a model to predict credit card fraud?2. How do you handle missing or bad data?3. How would you derive new features from features that already exist?4. If you’re attempting to predict a customer’s gender, and …

Job Interview Experience For The Role Of Data Scientist at Capital One Read More »

Job Interview Experience For The Role Of Data Scientist at Infosys

Job Interview Experiences Job Interview Experience For The Role Of Data Scientist at Infosys 1) curse of dimensionality? How would you handle it?2) How to find the multi collinearity in the data set3)Explain the difference ways to treat multi collinearity!4) How you decide which feature to keep and which feature to eliminate after performing multi …

Job Interview Experience For The Role Of Data Scientist at Infosys Read More »

Job Interview Experience For The Role Of Data Scientist at Wipro

Job Interview Experiences Job Interview Experience For The Role Of Data Scientist at Wipro 1. Difference between WHERE and HAVING in SQL2. Basics of Logistics Regression3. How do you treat outliers ?4. Explain confusion matrix ?5. Explain PCA (Wanted me to explain the co-variance matrix and eigen vectors and values and the mathematical expression and …

Job Interview Experience For The Role Of Data Scientist at Wipro Read More »

Job Interview Experience For The Role Of Data Scientist at Genpact

Job Interview Experiences Job Interview Experience For The Role Of Data Scientist at Genpact 1. Why do we select validation data other than test data?2. Difference between linear logistic regression?3. Why do we take such a complex cost function for logistic?4. Difference between random forest and decision tree?5. How would you decide when to stop …

Job Interview Experience For The Role Of Data Scientist at Genpact Read More »

Scroll to Top