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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.