Title
Exploiting site-level information to improve web search
Abstract
Ranking Web search results has long evolved beyond simple bag-of-words retrieval models. Modern search engines routinely employ machine learning ranking that relies on exogenous relevance signals. Yet the majority of current methods still evaluate each Web page out of context. In this work, we introduce a novel source of relevance information for Web search by evaluating each page in the context of its host Web site. For this purpose, we devise two strategies for compactly representing entire Web sites. We formalize our approach by building two indices, a traditional page index and a new site index, where each "document" represents the an entire Web site. At runtime, a query is first executed against both indices, and then the final page score for a given query is produced by combining the scores of the page and its site. Experimental results carried out on a large-scale Web search test collection from a major commercial search engine confirm the proposed approach leads to consistent and significant improvements in retrieval effectiveness.
Year
DOI
Venue
2010
10.1145/1871437.1871630
CIKM
Keywords
Field
DocType
bag of words,web pages,search engine,machine learning,algorithms
Web search engine,Static web page,Data mining,Web search query,Information retrieval,Web page,Computer science,Web query classification,Web modeling,Backlink,Web crawler
Conference
Citations 
PageRank 
References 
11
0.63
14
Authors
6
Name
Order
Citations
PageRank
Andrei Broder17357920.20
Evgeniy Gabrilovich24573224.48
Vanja Josifovski32265148.84
George Mavromatis4181.29
Donald Metzler53138141.39
Jane Wang6110.63