update

The process through which search crawls content and compiles an index of the content. Full updates include all content, incremental updates include only content that has changed. Adaptive updates include only content that is likely to have changed based on an analysis of historical information.

Search engines frequently update their algorithms and data sets to help keep their search results fresh and make their relevancy algorithms hard to update. Most major search engines are continuously updating both their relevancy algorithms and search index.

See also:

• Google Terminology - Video where Google's Matt Cutts discusses various commonly used terms inside Google.

The regeneration of a display to show current status, based on changes to the previously displayed data. Note: An update can be accomplished upon user request or by automatic means.