Explain the structure of artificial neural networks?

377

What is column storage?

327

What is the central limit theorem and why is it important?

292

What is logistic regression in data science?

404

What are the roles and responsibilities of a data scientist?

304

Why do you want to work at this company as a data scientist?

270

Which methods are defined for a class of iterators?

316

What is market basket analysis?

328

Pick up a coin C1 given C1+C2 with probability of trials p (h1) =.7, p (h2) =.6 and doing 10 trials. And what is the probability that the given coin you picked is C1 given you have 7 heads and 3 tails?

309

What assumptions does linear regression machine learning algorithm make?

321

What do you understand by ensemble learning?

314

State some use cases where Hadoop MapReduce works well and where it does not.

316

What is the svm algorithm?

363

How do you check for data quality?

297

How can you deal with different types of seasonality in time series modelling?

312