Prospective search

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.

Comparison to retrospective search

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, often months apart. 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 use 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.

See also

* PubSub
* Google Alerts

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 [http://www.globalprblogweek.com/2005/09/21/wyman-reputation-management/]

References

[http://www.globalprblogweek.com/2005/09/21/wyman-reputation-management/ Blogs & Prospective Search Technology for Corporate Reputation Management] , Bob Wyman, on Global PR Blog Week website.


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