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.
The aim of this paper is to address the issue concerning the tools for getting feedback from e-learning platform users. Our research analyzes the role of human presence in mediated learning environments proposing a possible strategy to detect it. The proposed system is based on web 2.0 patterns that are suitable for activating a virtual classroom tool with a feedback system to evaluate the student's...
Detecting human presence automatically is a challenging task since several environmental parameters may affect the quality and the continuity of detection. Although many techniques have been developed so far in the literature to solve this problem, they generally rely on well-defined operational context. Hence, they are sensitive to uncontrolled variables and unpredicted events. In this work an ontology-based...
Aim of this work is to present a new approach to the problem of user presence monitoring in working environments. Particularly, this work is focused on the evaluation of the presence or absence of a user in front of a terminal. This question is of paramount importance in applications requiring the user's presence e.g. video surveillance systems, control centrals, etc. The authors propose a technique...
A hierarchical multi-agent system that exploits one (or more) semantic lexicon for performing semantic markup of Web resources is presented. Semantic lexicon is considered here as a golden ontology defining taxonomical relations among concepts such as hypernymy, meronymy, holonymy and so forth. The system attempts to annotate Web resources according to the available taxonomical relations using simple...
This paper addresses the new emerging approach of Semantic Lexicon-based systems for modeling semantic Web applications. The paper endeavors to shed lights on some misconceptions in the literature about the use of taxonomy and ontology as interchangeable terms, defining a midpoint between the two extremes. Semantic Lexicon is considered as the right match between the semantic layer represented by...
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.