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Oradea, Romania

Benta D.,Agora University of Oradea | Bologa G.,Agora University of Oradea | Dzitac I.,Agora University of Oradea | Dzitac I.,Aurel Vlaicu University
Procedia Computer Science

This paper describes our experience in using e-learning platforms to support face to face instruction in academic field. We used Moodle as interactive e-learning tool to motivate students and involve them in resolving single and collaborative homework tasks. However, while many universities in the world use e-learning platforms, in our case this was for the first time used and it was a great teaching/learning experience. This paper aims to be easy to read and understand by proving the importance of using e-learning platforms in higher education. © 2014 Published by Elsevier B.V. Source

Dzitac I.,Aurel Vlaicu University | Dzitac I.,Agora University of Oradea
International Journal of Computers, Communications and Control

Membrane Computing is a branch of Computer Science initiated by Gheorghe Păun in 1998, in a technical report of Turku Centre for Computer Science published as a journal paper ("Computing with Membranes" in Journal of Computer and System Sciences) in 2000. Membrane systems, as Gheorghe Păun called the models he has introduced, are known nowadays as "P Systems" (with the letter P coming from the initial of the name of this research area "father"). This note is an overview of the impact in ISI WoS of Gheorghe Păun's works, focused on Membrane Computing and P Systems field, on the occasion of his 65th birthday anniversary. © 2006-2015 by CCC Publications. Source

Bucerzan D.,Aurel Vlaicu University | Ratiu C.,Vasile Goldis Western University of Arad | Manolescu M.-J.,Agora University of Oradea
International Journal of Computers, Communications and Control

With the development of mobile devices the security issue migrates from the PC platform to this new technology. Securing confidential information on the mobile platforms has been, is and will be a topical issue for the specialists. In this paper we propose a new solution in order to provide security of digital data that is transferred through today's available platforms for communication. We developed SmartSteg application that works on Android platform and it is able to hide and fast encrypt files using digital images of MB dimension as cover. LSB steganography is combined with a random function and symmetric key cryptography to transfer digital information, in a secure manner between smartphones that run under Android. © 2006-2013 by CCC Publications. Source

Brasoveanu A.,Lucian Blaga University | Manolescu A.,Agora University of Oradea | Spinu M.N.,Aurel Vlaicu University
International Journal of Computers, Communications and Control

Watching the evolution of the Semantic Web (SW) from its in-ception to these days we can easily observe that the main task the developers face while building it is to encode the human knowledge into ontologies and the human reasoning into dedicated reasoning engines. Now, the SW needs to have efficient mechanisms to access information by both humans and arti-ficial agents. The most important tools in this context are ontologies. The last years have been dedicated to solving the infrastructure problems related to ontologies: ontology management, ontology matching, ontology adoption, but as time goes by and these problems are better understood the research interests in this area will surely shift towards the way in which agents will use them to communicate between them and with humans. Despite the fact that interface agents could be bilingual, it would be more efficient, safe and swift that they should use the same language to communicate with humans and with their peers. Since anthropocentric systems entail nowadays multimodal interfaces, it seems suitable to build multimodal ontologies. Generic ontologies are needed when dealing with uncertainty. Multimodal ontologies should be designed taking into account our way of thinking (mind maps, visual thinking, feedback, logic, emotions, etc.) and also the processes in which they would be involved (multimodal fusion and integration, error reduction, natural language processing, multimodal fission, etc.). By doing this it would be easier for us (and also fun) to use ontologies, but in the same time the communication with agents (and also agent to agent talk) would be enhanced. This is just one of our conclusions related to why building generic multimodal ontologies is very important for future semantic web applications. © 2006-2010 by CCC Publications. Source

Dzitac I.,Aurel Vlaicu University | Dzitac I.,Agora University of Oradea
International Journal of Computers, Communications and Control

The aim of this survey article, dedicated to the 50th anniversary of Zadeh's pioneering paper "Fuzzy Sets" (1965), is to offer a unitary view to some important spaces in fuzzy mathematics: fuzzy real line, fuzzy topological spaces, fuzzy metric spaces, fuzzy topological vector spaces, fuzzy normed linear spaces. We believe that this paper will be a support for future research in this field. © 2006-2015 by CCC Publications. Source

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