Google Inc.

Jesse L Alpert

Yair Kurzion

Praveen K Tammana

David Benjamin Auerbach

Determining a schedule for recrawling pages is disclosed. A crawling schedule that specifies a due date at which each page is to be crawled is determined according to a first scheme. A set of pages that includes one or more pages each of which has a due date that has passed is determined. The set of pages is ordered according to a second scheme.

Managing items in crawl schedule

Crawling pages is disclosed. Pages are crawled up to a target number of pages. Additional pages, that have an importance that is equal to or greater than an importance threshold, are crawled beyond the target number of pages. In some embodiments, pages having an importance less than an importance threshold are deleted.

Managing URLs

A method for determining a recrawl schedule of items on an intranet using a search appliance includes estimating, using the search appliance installed on the intranet, a change period for items on the intranet using a history of crawl information for the items. The change period for an item may be a frequency of change in content of the item. The method includes calculating a crawl period for each of the items, where the crawl period for an item is set relative to the change period for the item. The method includes determining whether to adjust the calculated crawl period for each of the items using adjustment criteria, adjusting the calculated crawl period for selected items determined for adjustment using the adjustment criteria and creating a recrawl schedule of the items on the intranet using a recrawl time for each of the items.

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Albany, CA, United States of America

Jesse L Alpert