We present Aardvark, a social search engine. With Aardvark, users ask a question, either by instant message, email, web input, text message, or voice. Aardvark then routes the que...
In cyberspace, the emergence and increasing importance of search engine prompts numerous evaluation studies in regard to its effectiveness. Based on a user-oriented perspective, t...
In this paper we study several dimensions of web dynamics in the context of large-scale Internet search engines. Both growth and update dynamics clearly represent big challenges f...