US10216847B2
патент
Systems and method are provided for setting a respective reuse flag for a corresponding document in a plurality of documents based on a query -independent score associated with the corresponding document. A document crawling operation is performed on the plurality of documents in accordance with the reuse flag for respective documents in the plurality of documents. This document crawling opera tion includes reusing a previously downloaded version of a
Притязаний: 15. Знаков текста: 73 211.