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.
Keyword-based web search engine uses text to reflect users' query intentions. However, it is hard to descript user's intention with simple text terms accurately, and besides of this, it is also hard to make the association between the text terms and images precisely. As a result, the keyword-based image search engine may return large amount of junk images. In this paper, an interactive image filter...
Currently, with the popularization of the computer and Internet technologies, electronic documents have become the most important resource in enterprises or organizations. The security of documents and protecting the information resident in these documents is of paramount importance to the organizationpsilas progress and in some cases, their survival too. Hence, electronic documents are the target...
Positive feedback traders buy the asset when price is rising and sell it when price is falling. This type of speculation in short term causes the violent fluctuation for a given asset price, and make great influence to the stabilization of the financial market. The price reaction model under the influence of noise traders is established by considering the influence which the investment cost and information...
This paper focuses on the design of a fuzzy sliding mode controller for stochastic time-delay systems with unknown nonlinearities. The Takagi-Sugeno (T-S) fuzzy model is generalized to describe the stochastic delay system. A sufficient condition is derived such that the sliding mode dynamics is mean-square exponentially stable in the specified switching surface. Then, a sliding mode based control...
A novel totally blind direct symbol recovery method is developed for zero padding (ZP) OFDM. Unlike existing methods, most of which are based on subspace approach, and are not capable of tracking channel with rapid variations, the proposed two-stage method which enables direct blind symbol recovery is based on symbol-by-symbol approach and, thus, its performance will not degrade in rapid channel variation...
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.