read the paper and answering questions below

1.WHAT? (List 2 or 3 main objectives of the paper. what question addressed)

2. WHY? (Why is this important? Motivation and evidence. )

3. HOW? (How do the authors arrive at the conclusion? Models? Quantitative Methods?)

4. Results (Experiments) and Conclusion.

5. What do you think is the weakness of their approach?