The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2015
Filed:
Jun. 26, 2009
Joseph Yossi Azar, Redmond, WA (US);
Eric Horvitz, Kirkland, WA (US);
Eyal Lubetzky, Bellevue, WA (US);
Dafna Shahaf, Pittsburgh, PA (US);
Joseph Yossi Azar, Redmond, WA (US);
Eric Horvitz, Kirkland, WA (US);
Eyal Lubetzky, Bellevue, WA (US);
Dafna Shahaf, Pittsburgh, PA (US);
Microsoft Technology Licensing LLC, Redmond, WA (US);
Abstract
Many computing scenarios involve an item cache or index, comprising items corresponding to source items that may change without notice, rendering the item in the item cache or index stale. It may not be possible to guarantee the freshness of the items, but it may be desirable to reduce staleness in an efficient manner. Therefore, the refreshing of items may be prioritized by first predicting the query frequency of respective item representing the rate at which an item is retrieved from the item cache (e.g., by monitoring queries for the item), predicting an update frequency representing the rate at which the source item is updated by the source item host (e.g., by classifying the source item type), and computing a refresh utility representing the improvement in cache freshness achieved by refreshing the item. Respective items may then be prioritized for refreshing according to the computed refresh utilities.