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 move the sample points towards the optimality according to an attraction-repulsion mechanism, an improved heuristic is proposed. Firstly, the constrained optimization problem is transformed into an unconstrained optimization problem by external point method. Secondly, the formula of the particle charge is re-defined to decrease the amount of calculation and improve the efficiency. Then the formula...
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.