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.
Combinatorial testing is an efficient technique that reveals the faults caused by parameters interaction in software systems. It uses covering arrays as test suites to avoid the combinatorial explosion of parameter values. However, the construction of covering arrays with minimum size is still a challenging problem. This is because most of the existing methods to construct covering arrays result in...
Taking B-C websites as example, the thesis researched the price trend of books, empirical study of the price-following of online in China. The thesis concluded that price-following exists in domestic B-C retail websites and they were divided into three types according to price-following: price leaders; price followers and price rigidity type. The price-following tactics were different based on different...
To solve the problem of user valuation in telecommunication networks, a networked approach has been proposed for discovering high-value users. A network is constructed from the phone call records data. Each node in the network presents a user, which attribute is communication costs, and each link stands for the call relationship, which attribute is the cumulative number of calls placed between the...
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.