Search Result Diversification

Studies show that the vast majority of queries to search engines are short and vague in specifying a user’s intent. Different users may have completely different information needs and goals when using precisely the same query. For example, User A is finding information about Apply Company by issuing a query "apple,", while User B is finding information related to fruit apple using the same query. When such a query is issued, search engines will return a list of documents that mix different topics. It takes time for a user to choose which information he/she wants. Search Result Diversification is an effective way to solve this problem. It provides a list of results that cover as many aspects as possible, so that most users can be satisfied by the top results.

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