Efficient crawling through URL ordering (Reprinted from COMPUTER NETWORKS AND ISDN SYSTEMS, vol 30, pg 161, 1998)
In this paper we study in what order a crawler should visit the URLs it has seen, in order to obtain more "important" pages first. Obtaining important pages rapidly can be very useful when a crawler cannot visit the entire Web in a reasonable amount of time. We define several importance metrics, ordering schemes, and performance evaluation measures for this problem. We also experimentally evaluate the ordering schemes on the Stanford University Web. Our results show that a crawler with a good ordering scheme can obtain important pages significantly faster than one without. (c) 2010 Elsevier B.V. All rights reserved.
crawling url ordering