Recall is a search engine at the Internet Archive that indexes the text of over 11 Billion pages. The archive has pages dating way back to 1996 through the present day. If you need more help or see a bug during this Beta phase please e-mail firstname.lastname@example.org. A discussion forum is also available on the web.archive.org page. Try a search by clicking here.
A presentation about this technology can be downloaded.
- Searching: Recall searches the text of the HTML pages at the Internet Archive. To use its search capabilities, simply enter the words for the query separated by spaces - and either hit return or click on the button. Recall attempts to make the input into meaningful phrases, so it will default to finding pages about "Anna Patterson" if you enter the two words Anna Patterson into the search box.
- Personalized Searching: If you are using the personalized version and it does not seem to be working properly, you must enable cookies. If you have cookies enabled and are still having difficulties e-mail Anna with your browser type.
- Time-based Searching: Recall has time-based modifiers to the right of the search box. The default is to search the entire archive, however you can set the time modifiers for any time frame that the archive contains. Most search engines replace old pages with more recent pages. The archive wants to keep all data alive and therefore has many copies of a page as it changes over time.
- Time-based Relevancy: The panel below the search window shows the main topics covering the search and how these topics have changed in relevancy over time.
- Time-based Results: At the right is a graph showing how many pages there are pertaining to the search term at any given time point so that you can see how a topic grows and dwindles over time.
- Ranking: The search results appear in the panel below the search box. To get these results we use content based ranking. Since we know what the page is about, we use the content measure of the page to determine its worth rather than the now standard popularity measure.
- Categories and Topics: The panel to the right of the result section contains the topics that cover the results of the search. These topics help steer the searcher towards narrower results. To use this feature, simply click on an item in one of the menus. For example if you search for Postpartum Depression there is a category concerning Drugs one might take and another concerning topics related to Postpartum Psychosis.
Anna Patterson developed this technology. To learn more contact email@example.com