Find opinions on an object
We use product reviews as an example:
Searching for opinions in product reviews is different from general Web search.
E.g., search for opinions on “Motorola RAZR V3”
General Web search (for a fact): rank pages according to some authority and relevance scores.
The user views the first page (if the search is perfect).
One fact = Multiple facts
Opinion search: rank is desirable, however
reading only the review ranked at the top is not appropriate because it is only the opinion of one person.
One opinion Multiple opinions