Author Archives: Rohit Garg

27 Oct

Study Notes on Machine Learning Pipeline – Feature Engineering, Feature Selection and Hyper-Parameters Optimization

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image-27791
Machine learning is the scientific study of algorithms and statistical models to perform a specific task effectively without using explicit instructions. Machine learning algorithms include – supervised and unsupervised algorithms.  Supervised Learning  In supervised learning, the target is already known and is used in the model prediction. Classification: When target variable is categorical  Regression: When…
25 Oct

20 Advanced Level Puzzles Asked In Analytics Interview

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image-27731
The objective of this article is to put together the most popular puzzles asked in data science/analytics interviews. The article is helpful for candidates looking to get some insights into the puzzles asked. These puzzles have been asked in companies like Wipro, EXL, TCS, PWC, etc.  Also Read: 10 Commonly Asked Puzzles In A Data Science Interview…
19 Jul

PPNR Modeling – OLS, Co-Integration and ARIMAX

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image-24376

The objective of this article is to evaluate different techniques for time series forecasting. These techniques include OLS model, Co-integration model and ARIMAX model  Business problem: To forecast the different components of PPNR. These components include Non-interest Income and Non-interest Expense. Proposed solution OLSModel Co-IntModel ARIMAXModel Notes Preference  High Medium  Low   Complexity  Low  Medium …

The post PPNR Modeling – OLS, Co-Integration and ARIMAX appeared first on Analytics India Magazine.

05 Feb

30 Interview Questions on Risk Analytics

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image-19827

The demand for Credit Risk Analytics professionals across the geographies with technical expertise such as statistical modelling and domain expertise have increased exponentially over years. There is a need for professionals who have an ability to overlay data analytics and perform statistical modelling, all this with business insights. Overall, the Indian Risk Analytics industry was…

The post 30 Interview Questions on Risk Analytics appeared first on Analytics India Magazine.

05 Feb

30 Interview Questions on Risk Analytics

image-19828
image-19828

The demand for Credit Risk Analytics professionals across the geographies with technical expertise such as statistical modelling and domain expertise have increased exponentially over years. There is a need for professionals who have an ability to overlay data analytics and perform statistical modelling, all this with business insights. Overall, the Indian Risk Analytics industry was…

The post 30 Interview Questions on Risk Analytics appeared first on Analytics India Magazine.

09 Feb

60 Interview Questions On Machine Learning

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image-9933

We frequently come out with resources for aspirants and job seekers in data science to help them make a career in this vibrant field. Cracking interviews especially where understating of machine learning is needed can be tricky. Here are 60 most commonly asked interview questions for data scientists, broken into linear regression, logistic regression and…

The post 60 Interview Questions On Machine Learning appeared first on Analytics India Magazine.

02 Feb

40 Interview Questions On Statistics For Data Scientists

We frequently come out with resources for aspirants and job seekers in data science to help them make a career in this vibrant field. Cracking interviews especially where understating of statistics is needed can be tricky. Here are 40 most commonly asked interview questions for data scientists, broken into basic and advanced. Here are some…

The post 40 Interview Questions On Statistics For Data Scientists appeared first on Analytics India Magazine.

13 Jan

A Beginners Guide To Regression Techniques

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image-9452

Regression analysis is a form of predictive modelling technique which investigates the relationship between a dependent (target) and independent variable (s) (predictor). This technique is used for finding the relationship between the variables. Example: Let’s say, you want to estimate growth in sales of a company based on current economic conditions. You have the recent company data which indicates…

The post A Beginners Guide To Regression Techniques appeared first on Analytics India Magazine.