According to Wikipedia, the definition of prospective search is as follows.

“Prospective search, or persistent search, is a method of searching on the Internet where the query is given first and the information for the results are then acquired. This differs from traditional, or “retrospective”, search such as search engines, where the information for the results is acquired and then queried.”

Well, this approach is used to search realtime events, and I’m thinking of implementing prospective search soon, using Python and the Prospective Search API from Google I introduced earlier.

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