Answer / Satya Prakash

Recall, also known as Sensitivity or True Positive Rate (TPR), is a performance metric for classification problems. It measures the proportion of actual positives that are correctly identified by the classifier.

Do you prefer python or r for text analytics?

1 Answers  

---

What would you do to summarize a Twitter feed?

1 Answers   Microsoft,

---

Explain systematic sampling?

1 Answers  

---

How can bogus Facebook accounts be detected?

1 Answers   Facebook,

---

Which language is best for text analytics? R or python?

1 Answers  

---

Why do you need a for loop? How do you do for loops in python and r?

1 Answers  

---

How make you 3d plots/visualizations using numpy/scipy?

1 Answers  

---

What is the law of large numbers?

1 Answers  

---

You are given a training dataset of users that contain their demographic details, the pages on Facebook they have liked so far and results of psychology test based on their personality i.e. their openness to like FB pages or not. How will you predict the age, gender and other demographics of unseen data?

1 Answers   American Express,

---

Find out K most frequent numbers from a given stream of numbers on the fly.

1 Answers   LinkedIn,

---

Write a function to check whether a particular word is a palindrome or not.

1 Answers   Microsoft,

---

Can you explain difference between data modeling and database design?

1 Answers  

---