University of Ploiesti

Romania

University of Ploiesti

Romania
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Constantinescu Z.,ZealSoft Ltd. | Marinoiu C.,University of Ploiesti | Vladoiu M.,University of Ploiesti
International Journal of Computers, Communications and Control | Year: 2010

This paper investigates the modeling of the personal driving style of various vehicle drivers based on several driving parameters. The purpose of such an endeavor is to classify the drivers according to their risk-proneness within the larger context of increasing traffic safety, which is a major concern worldwide. This information is valuable especially for those involved in fleet management and it can be used to improve and to make safer the driving style of various individuals who serve within that fleet. Equally important, such information could help any driver to see the danger within his or her driving style. Cluster and principal component analyses from exploratory statistics have been used to identify and explain drivers grouping according to their driving behavior. The driving parameters (behavioral indices) are collected from urban traffic by an in-house developed GPS-based device and sent to a data server for analysis. © 2006-2010 by CCC Publications.


Constantinescu Z.,ZealSoft Ltd. | Constantinescu Z.,University of Ploiesti | Vladoiu M.,University of Ploiesti
World Academy of Science, Engineering and Technology | Year: 2011

Lately there has been a significant boost of interest in music digital libraries, which constitute an attractive area of research and development due to their inherent interesting issues and challenging technical problems, solutions to which will be highly appreciated by enthusiastic end-users. We present here a DL that we have developed to support users in their quest for classical music pieces within a particular collection of 18,000+ audio recordings. To cope with the early DL model limitations, we have used a refined socio-semantic and contextual model that allows rich bibliographic content description, along with semantic annotations, reviewing, rating, knowledge sharing etc. The multi-layered service model allows incorporation of local and distributed information, construction of rich hypermedia documents, expressing the complex relationships between various objects and multi-dimensional spaces, agents, actors, services, communities, scenarios etc., and facilitates collaborative activities to offer to individual users the needed collections and services.


Moise G.,University of Ploiesti | Vladoiu M.,University of Ploiesti | Constantinescu Z.,University of Ploiesti
Advances in Intelligent Systems and Computing | Year: 2014

Group creativity is a hot topic in the creativity literature, yet no method to obtain the most creative teams given a group of individuals is available. We introduce here a method for building creative teams, based on unsupervised learning and implemented with support from a multiagent system. Our first experiments with using this method for grouping learners involved in online brainstorming are presented as well. © Springer International Publishing Switzerland 2014


Vladoiu M.,University of Ploiesti | Constantinescu Z.,University of Ploiesti
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2012

In spite of the scale, popularity, and importance of the open courseware movement for users worldwide, there is yet no quality assessment framework that could support users on their quest for finding the most appropriate learning resource with regard to their educational needs. This paper presents both an evaluation and a comparison between three open courseware on databases offered by three major open courseware providers, which comply with three different open courseware paradigms. Both evaluation and comparison are based on our set of quality criteria that serve as general guidelines for development, use, modification, evaluation, and comparison of open educational resources and open courseware, from a social and constructivist perspective. © 2012 Springer-Verlag.


Vladoiu M.,University of Ploiesti
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2014

Seeing the world's knowledge as a public asset that can be accessed, shared, used and reused, etc. mediated by technology, especially ICT, is a potent idea and it may have an influential impact on educational processes within our society. A decade of development of initiatives that offer open courseware and open educational resources has passed, and all the related projects have contributed to the provision of open university-level digital educational materials. For the time being, there is no articulated set of quality criteria to be used for development, use, modification, evaluation, and comparison of such resources, though, there is concern about this subject. We introduce here a set of criteria for Quality Assurance of open courseware and open educational resources, from a social and constructivist perspective, as a first step towards construction of a quality model. They have been grouped in four categories related with content, instructional design, technology and courseware evaluation. © 2014 Springer-Verlag.


Vladoiu M.,University of Ploiesti
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2014

Despite the momentum of the open courseware movement around the world, no quality criteria and metrics for evaluation of open courseware or open educational resources' repositories are available yet. Therefore, learners and instructors have no support and guidance in their quest for locating the most suitable learning resource that fulfills their educational aims. The same is true for developers, who have no guidelines for designing and building such educational resources. We present here an evaluation and comparison between two open courseware on data structures and algorithms, which are available from two important open courseware providers and that comply with different open courseware paradigms. Both evaluation and comparison rely on our socio-constructivist quality model, which consists of a set of quality criteria that serve as general guidelines for development, use, modification, evaluation, and comparison of open educational resources and open courseware. © 2014 Springer-Verlag.


Constantinescu Z.,University of Ploiesti | Vladoiu M.,University of Ploiesti
2013 17th International Conference on System Theory, Control and Computing, ICSTCC 2013; Joint Conference of SINTES 2013, SACCS 2013, SIMSIS 2013 - Proceedings | Year: 2013

In this paper, we analyze and discuss some of the challenges regarding safety, security, and privacy involved in developing a vehicle tracking system, zooming on the tracking device. Potential concerns as vehicle and tracking system safety, tampering activity, criminal activity, and unauthorized access to the system are approached and several solutions are presented. © 2013 IEEE.


Vladoiu M.,University of Ploiesti | Constantinescu Z.,University of Ploiesti
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2013

In this paper we introduce a rubric for assessing quality of open educational resources and open courseware based on our socio-constructivist quality model (QORE) that includes 70 criteria grouped in four categories related with content, instructional design, technology, and courseware evaluation. Quality is assessed from an educational point of view, i.e. how useful are such resources for various actors involved in educational processes taken into account their goals, objectives, abilities etc. QORE's focus is on the resources' potential to act as true open educational content available online that has a genuine educational value in this context. Several challenges of using this rubric for evaluation of such educational resources are discussed as well. © 2013 Springer-Verlag.


Vladoiu M.,University of Ploiesti | Constantinescu Z.,University of Ploiesti | Moise G.,University of Ploiesti
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2013

More than a decade has passed since the start of the MIT OCW initiative, which, along with other similar projects, has been expected to change dramatically the educational paradigms worldwide. However, better findability is still expected for open educational resources and open courseware, so online guidance and services that support users to locate the appropriate such resources are most welcome. Recommender systems have a very valuable role in this direction. We propose here a hybrid architecture that combines enhanced casebased recommending (driven by a quality model tenet) with (collaborative) feedback from users to recommend open courseware and educational resources. © Springer-Verlag 2013.

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