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In Conversation with Naeem Siddiqi – Author Credit Risk Scorecards and Credit Scoring Guru

· Roopam Upadhyay · 5 Comments

Predictive analytics is considered one of the sexiest professions of our times. But where did it all start? What was the first business application of predictive analytics? It is hard to pin down one particular application but one of the earliest and highly successful applications is certainly credit risk models and retail credit scorecards. Credit scorecards help banks assess

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Posted in Events & Interviews, Risk Analytics |

Intuitive Machine Learning : Gradient Descent Simplified

· Roopam Upadhyay · 21 Comments

How do machines learn? They learn the same way as humans. Humans learn from experience and so do machines. For machines, the experience is in the form of data. Machines use powerful algorithms to make sense of the data. They identify underlining patterns within the data to learn things about the world. Like humans, machines

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Posted in Gradient Descent, Machine Learning and Artificial Intelligence |

What is the Right Sample Size for Your Analysis?

· Roopam Upadhyay · 5 Comments

A few years ago, I did a day-long workshop on Statistical Thinking for a large German shipping & cargo company in Mumbai. During the Q&A session, the Vice President of operations asked a tricky question: what is a good sample size to achieve precision and accuracy for your analysis? He was looking for a one-size-fits-all answer and

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Posted in Analytics Tips and Tricks |

7 Worst Mistakes in Data Science Interviews, and How to Avoid Them.

· Roopam Upadhyay · 7 Comments

Are you preparing for data science interviews? To help you in your preparation, in this article, I will discuss some of the worst mistakes candidates make in data science interviews. In the previous article, we discussed the structure of data science interviews along with sample questions and preparation strategy. Many times I have noticed that well-prepared

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Posted in Analytics Tips and Tricks, Data Science Career |

7 Data Science Job Interview Types, Sample Questions, and Preparation Strategies

· Roopam Upadhyay · 23 Comments

Are you preparing for a data science job interview? To help you, in this article I will explore some of the most common techniques used by data scientists to select their future colleagues. Additionally, I will also share many sample questions for data science job interviews and suggest a few strategies to prepare. Moreover, please post your

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Posted in Analytics Tips and Tricks, Data Science Career |

Process Optimization & Real Time Analytics – Case Study Example (Part 2)

· Roopam Upadhyay · 1 Comment

This is a continuation of the case study example for optimization of a business process. You can find the previous part at this link. In this case study example, you are helping a company reduce their process turn-around-time through advanced analytics and data science. You will use some of the key data science activities including business process optimization, customer

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Posted in Call Center Case Study Example |

My New Year Wish for Professionals

· Roopam Upadhyay · 4 Comments

Mornings in 2016 May your days start with the joy you feel about your work. May the sheer pleasure of your work be the driving force for you. May you have several new ideas that you want to try when you reach work. May you work on things you strongly believe in. May you find pleasure in small things.  

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Posted in Events & Interviews |

3 Suggestions for Career Transition to Data Science and Business Analytics for Experienced Professionals

· Roopam Upadhyay · 17 Comments

A couple of weeks ago I was at two different business schools as a guest speaker. Both ISB, Hyderabad, and MISB Bocconi have specialized programs in business analytics and data science for working professionals. I gave talks about ‘career in data science & industry’s expectations from data scientists’. I got the opportunity to speak to more

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Posted in Analytics Tips and Tricks, Data Science Career, Events & Interviews |

Business Process Optimization – A Call Center Case Study Example (Part 1)

· Roopam Upadhyay · 6 Comments

In this post we will start a new data science case study example on YOU CANalytics. In this case study example, you will learn about some of the key data science activities including business process optimization, linear / integer programming, customer & agent profiling, and real-time analytics. To understand these concepts better we will use a case

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Posted in Call Center Case Study Example |

Learning Resources : Artificial Intelligence, Cognitive Computing, Deep Learning, & Neural Networks

· Roopam Upadhyay · 5 Comments

This article is an effort to make you into a “semi-expert” in artificial intelligence, cognitive computing, deep learning and neural networks from scratch. Here I will share a few cool learning resources for these topics. These resources include documentaries, TED talks, online lecture videos, and books. There are several videos and online books included in

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Posted in Analytics Book Club, Analytics Tips and Tricks |
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Must Read

Career in Data Science - Interview Preparation - Best Practices

Free Books - Machine Learning - Data Science - Artificial Intelligence

Case-Studies

- Marketing Campaign Management - Revenue Estimation & Optimization

Customer Segmentation - Cluster Analysis - Segment wise Business Strategy

- Risk Management - Credit Scorecards

- Sales Forecasting - Time Series Models

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I must thank my wife, Swati Patankar, for being the editor of this blog.

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