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.
To address the challenge of the accuracy and efficiency of the metamodel, an adaptive sequential polynomial chaos expansion (ASPCE) metamodel technique is presented. The Latin hypercube sampling (LHS) is used to obtain the initial samples. A new adaptive truncation strategy of polynomial chaos expansion (PCE) is presented for high order PCE, and the parameters are updated by global sensitivity indices...
Stream data classification is a research topic of growing interest. Traditional approaches treat all attributes (i.e. features) of a stream data object fairly during the process of classification. Yet, in a real streaming environment, not all of the features are equally important to the classification result. Therefore, the classification accuracy can be improved by highlighting representative features...
This work focuses on applying data mining techniques to a practical example of cross-selling problem raised by PAKDD'07 Data Mining Competition. Firstly, we build decision tree from high dimensional data to identify the most important features according to information gain. Some comprehensible business insights are also gained from it. Secondly, a novel re-sampling technique is proposed to resolve...
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.