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» Optimal crawling strategies for web search engines
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ERCIMDL
2005
Springer
305views Education» more  ERCIMDL 2005»
14 years 28 days ago
Focused Crawling Using Latent Semantic Indexing - An Application for Vertical Search Engines
Vertical search engines and web portals are gaining ground over the general-purpose engines due to their limited size and their high precision for the domain they cover. The number...
George Almpanidis, Constantine Kotropoulos, Ioanni...
SIGIR
2009
ACM
14 years 1 months ago
The impact of crawl policy on web search effectiveness
Crawl selection policy has a direct influence on Web search effectiveness, because a useful page that is not selected for crawling will also be absent from search results. Yet th...
Dennis Fetterly, Nick Craswell, Vishwa Vinay
JIS
2008
119views more  JIS 2008»
13 years 6 months ago
A three-year study on the freshness of web search engine databases
This paper deals with one aspect of the index quality of search engines: index freshness. The purpose is to analyse the update strategies of the major Web search engines Google, Y...
Dirk Lewandowski
HT
2006
ACM
14 years 1 months ago
Evaluation of crawling policies for a web-repository crawler
We have developed a web-repository crawler that is used for reconstructing websites when backups are unavailable. Our crawler retrieves web resources from the Internet Archive, Go...
Frank McCown, Michael L. Nelson
WWW
2009
ACM
14 years 8 months ago
Sitemaps: above and beyond the crawl of duty
Comprehensive coverage of the public web is crucial to web search engines. Search engines use crawlers to retrieve pages and then discover new ones by extracting the pages' o...
Uri Schonfeld, Narayanan Shivakumar