Prospective search

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.[1]

Retrospective search starts by gathering the information, indexing it, then letting users query the information. The results don't change until the index is rebuilt. Prospective search starts with the user's queries, gathers the information in a targeted way, indexing it and then providing the results as they arrive. Sometimes Ping Servers are used to gather notification of changes to websites so that the information received is as fresh as possible. Users can be notified in a number of ways of new results.

Prospective search is well suited to queries where the results change over time, such as the current news, blogs and trends.

gollark: I generally wouldn't agree with vaguely dishonest things like that, and I don't know if anyone actually thinks that's the goal.
gollark: I suppose if you model LGBTQ+ etc. acceptance as some sort of 1D scale ranging from "persecuted heavily" to "worshiped as gods" with "general sensible acceptance" in the middle, and we're somewhere down between "persecuted" and "acceptance", then even if the target is "general sensible acceptance" it may be more effective to... market stuff? slightly more toward the "worshiped as gods" end in order to reach the middle.
gollark: Yes.
gollark: I mean, I prefer "let's learn about some historical issues regarding [GROUP]" over "[GROUP] great, let us all praise [GROUP]".
gollark: Sorry, have been.

See also

Quotes

Prospective search is emerging as a way of keeping up-to-date on any subject of interest. This technology constantly monitors relevant blogs and Web feeds for matches to users’ subscriptions and delivers results in real time. Thus, users are notified whenever something new appears on their subject of choice

— Global PR Blog Week[1]

References
  1. Bob Wyman (2005). "Blogs & Prospective Search Technology for Corporate Reputation Management". Global PR Blog Week website.
  2. https://code.google.com/appengine/docs/python/prospectivesearch/
  3. https://cloud.google.com/appengine/docs/deprecations/prospective_search?hl=en
  4. http://blog.superfeedr.com/full-text-trackers/


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