Hello,
After trying to finish the last year quiz 4 and comparing with the corrections, I have several questions that I don't really understand:
Question 8.1 : the question asks which the better system is where it is important to find all the documents that are relevant. In this case I think we should look at the "Recall" score. However since the two systems have the exactly same recall score, why the answer is S2?
Question 9.2 : in this question, I find out the whole method looks like k-means approach for a clustering problem. So I thought it was an unsupervised classification method. However in the correction, it is said to be a hybrid method. Why is it hybrid in this case?
Thank you in advance for your clarification,
Qi