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.
As popular web applications, web services can provide very flexible application integration taking advantage of existing Internet protocols and open standards. However, there are a few stubborn problems which exist in its architectures, for example, security. Especially in distributed services environment, trust which is a proved way to resolve security problem of web service is crucial to service...
The increasing requirements of education, reduction of study cost and no location limits study have encouraged developers providing e-learning systems. In E-learning system, identity verification of the learner is an important part of the operation of e-learning security. In this paper we combine mobile agent and e-learning system and define a new E-learning system which has a mobile agent named Client...
Many problems in educational data processing on Internet are dynamic optimization problems. These DOPs challenge traditional optimization methods as well as conventional evolutionary algorithms. In this paper, an improved Particle Swarm Optimizer (PSO) by introducing Group Search Optimizer (GSO) mechanisms is proposed to solve optimization in dynamic environment. The member switch method between two...
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.