3. Question 3 In content-based filtering, an item is recommended to a user based on whether other “similar” users like the item or not. 1 point False True
2. Question 2 Information filtering systems are more suitable to help users satisfy long-term information needs than short-term ad hoc information needs. 1 point True False
1. Question 1 When using the learning to rank framework for combining multiple features into a ranking function, training data composed of queries and relevance judgments is needed to learn…
8. Question 8 The advantages of incremental crawling are: 1 point It adds overhead. It targets frequently accessed pages. It targets frequently updated pages. It learns…
7. Question 7 What is true about Rocchio feedback? 1 point It can be used for relevance feedback and also pseudo feedback. Negative examples are as important as…
5. Question 5 Imagine if the web is fully connected with N pages such that for any pair of pages, P and Q, there exists a link from P to…
9. Question 9 What is NOT the reason that PageRank works better than “citation counting”? 1 point It utilizes text information other than link information. PageRank has smoothing….
6. Question 6 Which of the following is/are the difference(s) between pseudo and implicit feedback? 1 point Implicit feedback assumes user-clicked documents are relevant. Pseudo feedback assumes top…
3. Question 3 In MapReduce, the Reduce function is called for each unique key of the output key-value pairs from the Map function. 1 point True False
1. Question 1 Which of the following is not true about GFS? 1 point The file data transfer happens directly between the GFS client and the GFS master. …
