Factspan Interview Question | WiFi
Question
Given that you have wifi data in your office, how would you determine which rooms and areas are underutilized and overutilized?
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Answer ( 1 )
There are 3 popular ways of feature selection in ML models:
1. Filter method
a. Pearson’s correlation
b. ANOVA
c. LDA
d. Chi-Square
2. Wrapper method
a. Forward selection
b. Backward selection
c. Recursive feature elimination
3. Embedded Methods
a. Lasso regression
b. Ridge regression
You can read more about this is the below link:
https://analyticsindiamag.com/what-are-feature-selection-techniques-in-machine-learning/