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.
XML has been in prevalent use nowadays, so it is necessary to take measures to ensure the security of XML data. Recently, many access control models have been presented and many models are based on the concept of security views, which provide for each user group (a) an XML view consisting of all and only the information that the users are authorized to access, and (b) a view DTD that the XML view...
Schema matching is a critical problem in many applications of database system, such as information integration, data warehouses, e-commerce, etc. So far, many solutions based on schema and element have been proposed. In this paper we present a new approach of instance-based matching building on the hypothesis that the corresponding attributes have equal relative importance. The framework of our approach...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.