The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Information retrieval activities in many different areas are using popular Web search engines, such as Google, Yahoo!, and Live Search, etc. to obtain initial helpful information. These retrieved information items may not be relevant to the search target in the search engine user's mind. The user in turn has to shortlist the results. These popular Web search engines use first generation search service...