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.
Constellation networking is the prominent technology for the next generation satellite systems. The communication schedule is a key problem for constellation maintenance. However, the traditional SRS (Satellite Range Scheduling) model do not use inter-satellite links. In this paper, a communication scheduling model is proposed, in which the ISLs (Inter Satellite Links) is built. And the NP complicity...
Feature selection for spectral data can be highly beneficial both to improve the predictive ability of the model and to greatly enhance its interpretation. This paper presents an efficient approach based on regularized orthogonal forward selection. The selection procedure is a direct optimization of model generalization capability by sequentially minimizing the leave-one-out (LOO) test error. Moreover,...
Diversity maintenance of solutions is a crucial part in multi-objective optimization. However, most of existing studies show a good distribution with a large computational load or a comparative bad distribution quickly. In this paper, a method for pruning a set of non-dominated solutions using a spanning tree is proposed. This approach defines a density estimation metric - spanning tree crowding distance...
In the following, engineering model was applied to estimate the cost of China metropolitan IP network. The cost estimating model we established is born of local exchange cost optimization model (LECOM) and hybrid cost-proxy model (HCPM). Improvements embody two parts: introducing one more factor into original model, which indicates complex geographical environment, and building an algorithm for optimization...
Based on the structured singular value theory, a tractable stability measure is derived for controllers/filters with the finite word length implementation consideration. The optimal realizations of controllers/filters are defined as those that maximize this measure. A sophisticated optimization strategy is presented to provide an efficient method for solving this problem based on the linear matrix...
A new approach is proposed to design optimal finite word length (FWL) realizations of digital controllers implemented in fixed-point arithmetic. An analytical method is first formulated to obtain a global optimal controller realization that optimizes an FWL closed-loop stability measure. A dynamic range measure is next derived for the implemented controller realization, and a numerical optimization...
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.