Lecture 8 Future Trends, Big Data and Predictions

Question 1

What are the five steps of the process of machine learning?

Answer 1

1. collecting data
2. exploring and preparing data
3. training a model on the data
4. evaluate model performance
5. improving model performance

Question 2

What are the 5 V’s of Big data?

Answer 2

1. volume
2. variety (multiple types/sources)
3. velocity (produced at high rates)
4. veracity (accuracy and completeness)
5. value

Question 3

What two key forces determine engagement in influencer marketing?

Answer 3

1. Reach: Number of followers exposed to content (increasing number of followers (D))
2. Engagement probability: Reached followers decide whether to engage with content with certain probability, driven by perceived tie strength with influencer (decreasing in number of followers (D))