Web Search

The Web today plays a central part in the cultural, educational and commercial life of millions of users. Due to the astonishing amount of information available on the Web, users typically rely on the Web search engines in order to locate relevant and useful information. A Web search engine’s task is to find the most relevant content on the Web, given a user’s query. To achieve this, different search engines may follow different approaches, but, in general, major search engines such as Google [14], Live Search [19] and Yahoo! [37] follow the architecture outlined in Figure 1.