Question: 12
(Choose 1 answer)
What are two assumptions on which the discounted cumulative gain (DCG) measure bases for evaluating
web search and related applications?
A. Highly relevant documents are less useful than marginally relevant documents
B. The higher the ranked position of a relevant document, the more useful it is
C. Highly relevant documents are more useful than marginally relevant documents, and the lower the ranked
position of a relevant document, the less useful it is
D. The higher the ranked position of a relevant document, the more likely it is to be examined by the user
