# Tutor profile: Shraddha S.

## Questions

### Subject: Machine Learning

Regression vs time series forcasting? which one to choose when?

Time series can be used if the dataset is stationary. Regression model can be used when the data set satisfies the assumptions of regression model.

### Subject: Statistics

What are the applications of the goodness of the FIT test?

The goodness of fit test is a hypothesis test that is used for normally distributed data. It is used to test how well our sample dataset represents the actual population. Popular GoF test is: Chi-square test Kolmogorov-Smirnov

### Subject: Data Science

What type of features is produced from Word2vec?

Word2Vec produces word embeddings. It gives us metrics of comparison of how closely a particular word is related to every other word. This metric is calculated using the frequency of occurrence of words together in the past. It is one of the techniques to learn word embeddings and is built using neural networks.

## Contact tutor

needs and Shraddha will reply soon.