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== Exploiting User Generated Content to Improve Web Search ==

Speaker: Wolfgang Nejdl

===Abstract:===

More and more information is available on the Web, and the current
search engines do a great job to make it accessible. Yet, optimizing for
a large number of users, they usually provide good answers only to "most
of us", and have yet to provide satisfying mechanisms to search for
audiovisual content.

In this talk I will present some ongoing work at L3S addressing these
challenges, done in the context of several European Union funded
projects on personal information management and web search.  Regarding
personalization, I will talk about personalizing Web Search based on
user content on the desktop, which goes beyond simple user profiles used
in other systems. Regarding search for audiovisual content, I will focus
on exploiting user generated information, and discuss what kinds of tags
are used for different resources like audio and pictures, and how they
can help for search.