THE TWO MAIN ALGORITHMS
Grehan, CEO and founder of Searchvisible has written much
over the years about search engine algorithms. During 1997-1998,
two most influential hyperlink based search algorithms PageRank
and HITS were reported. They are related to social networks
and exploit the hyperlinks of the Web to rank pages according
to their levels of "prestige" or "authority".
from ranking documents at search engines, hyperlinks are
also useful for finding Web communities. A Web community
is a cluster of densely linked pages representing a group
of people with a special interest. Social network analysis
is applied by search engines to the Web. Essentially, the
web is a virtual society creating a virtual social network.
page is a social actor and each hyperlink a relationship.
Much research in social network analysis can be adapted
and extended for use in the Web context. The two main algorithms
rely on two types of social network analysis, centrality
and prestige, which are closely related to hyperlink analysis
and search on the Web.
you'd like to learn more about search engine algorithms
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