Search For:

Displaying 1-13 out of 13 total
A Web 2.0 Citizen-Centric Model for T-Government Services
Found in: IEEE Intelligent Systems
By Alexandros Dais,Mara Nikolaidou,Dimosthenis Anagnostopoulos
Issue Date:September 2013
pp. 10-18
To fully realize the potential of IT governmental services, or T-Government, proponents must enhance and encourage active citizen involvement. A citizen-centric interaction model that uses the Web 2.0 paradigm helps citizens better control their private da...
An Integrated Approach to Automated Semantic Web Service Composition through Planning
Found in: IEEE Transactions on Services Computing
By Ourania Hatzi,Dimitris Vrakas,Mara Nikolaidou,Nick Bassiliades,Dimosthenis Anagnostopoulos,Ioannis Vlahavas
Issue Date:July 2012
pp. 319-332
The paper presents an integrated approach for automated semantic web service composition using AI planning techniques. An important advantage of this approach is that the composition process, as well as the discovery of the atomic services that take part i...
A Specialized Search Engine for Web Service Discovery
Found in: 2012 IEEE 19th International Conference on Web Services (ICWS)
By Ourania Hatzi,Georgios Batistatos,Mara Nikolaidou,Dimosthenis Anagnostopoulos
Issue Date:June 2012
pp. 448-455
Web service discovery on the web is not a trivial task as the number of available web service descriptions continuously increases, and global UDDI registries are no longer available. As discovery through conventional, general-purpose search engines does no...
Assessing the Contribution of Lecture Video Service in the Hybrid Learning Ecosystem of Harokopio University of Athens
Found in: Mobile, Hybrid, and On-line Learning, International Conference on
By Mara Nikolaidou, Chryssa Sofianopoulou, Ioannis Giannopoulos
Issue Date:February 2010
pp. 141-146
After the wide acceptance of hybrid learning methods in the Harokopio University of Athens, it was decided to explore the support of a lecture video service and its impact in hybrid learning process. Such evaluation should explore the affect of the specifi...
Handling Non-functional Requirements in Information System Architecture Design
Found in: Software Engineering Advances, International Conference on
By Anargyros Tsadimas, Mara Nikolaidou, Dimosthenis Anagnostopoulos
Issue Date:September 2009
pp. 59-64
Information system architecture design is a complex task depending on both functional and non-functional requirements. Since system architecture definition is strongly related to system performance, non-functional requirements play a significant role durin...
A SysML Profile for Classical DEVS Simulators
Found in: Software Engineering Advances, International Conference on
By Mara Nikolaidou, Vassilis Dalakas, Loreta Mitsi, George-Dimitrios Kapos, Dimosthenis Anagnostopoulos
Issue Date:October 2008
pp. 445-450
Discrete event simulation specification (DEVS) is a formalism facilitating hierarchical and modular description of the models executed using DEVS simulators. Lack of standardized, easy-to-use interface enabling simulation practitioners to define their mode...
Enabling On-the-Fly Business Process Composition through an Event-Based Approach
Found in: Hawaii International Conference on System Sciences
By Nancy Alexopoulou, Mara Nikolaidou, Yannis Chamodrakas, Drakoulis Martakos
Issue Date:January 2008
pp. 379
Agility is a key characteristic for modern enterprises operating in a highly dynamic environment. The attainment of agility is a difficult issue involving all organizational aspects, such as business processes, information systems, personnel, organizationa...
Data Organization and Data Comparison for Model Validation in Faster-than-Real-Time Simulation
Found in: Simulation Symposium, Annual
By Dimosthenis Anagnostopoulos, Mara Nikolaidou
Issue Date:April 2006
pp. 252-260
Validation is an essential feature of faster-than-real-simulation (FRTS), since models must be validated prior used for nearfuture predictions. As no relevant approaches exist in the literature, the paper contribution is to propose an approach a) accomplis...
Enterprise Information Systems Configuration: Emphasizing the Symbiotic Relationship between Applications and the Underlying Network
Found in: Engineering of Complex Computer Systems, IEEE International Conference on
By Mara Nikolaidou, Dimosthenis Anagnostopoulos
Issue Date:April 2004
pp. 47-56
Enterprise information systems consist of interrelated Intranet-based and Internet-based applications, thus the Web platform serves well as the middleware for their development. Even though, in many cases, discrete applications operate efficiently, the ove...
Executing a Minimum Number of Replications to Support the Reliability of FRTS Predictions
Found in: Distributed Simulation and Real Time Applications, IEEE/ACM International Symposium on
By Dimosthenis Anagnostopoulos, Mara Nikolaidou
Issue Date:October 2003
pp. 138
In faster-than-real-time simulation (FRTS), a valid model may be maintained in real time through comparing simulation results with the corresponding system observations at regular time intervals. As, in the general case, simulation does not reach a steady ...
Using a Medical Digital Library for Education Purposes
Found in: Computer-Based Medical Systems, IEEE Symposium on
By Mara Nikolaidou, Dimosthenis Anagnostopoulos, Michael Hatzopoulos
Issue Date:June 2003
pp. 22
Athens Medical School is one of the largest medical research institutions in Greece, where educational activities are combined with every-day practice in the University Hospital. The laboratories operating in the University Hospital produce a large amount ...
Employing Zachman Enterprise Architecture Framework to Systematically Perform Model-Based System Engineering Activities
Found in: Hawaii International Conference on System Sciences
By Mara Nikolaidou, Anargyros Tsadimas, Nancy Alexopoulou, Dimosthenis Anagnostopoulos
Issue Date:January 2009
pp. 1-10
There are numerous Enterprise Information System (EIS) engineering methodologies in the literature, each covering different aspects. However, in order to integrate them in an Enterprise Architecture, model-based engineering can be adopted. In such a case, ...
Evaluating software architecture in a model-based approach for enterprise information system design
Found in: Proceedings of the 2010 ICSE Workshop on Sharing and Reusing Architectural Knowledge (SHARK '10)
By Anargyros Tsadimas, Dimosthenis Anagnostopoulos, Mara Nikolaidou
Issue Date:May 2010
pp. 72-79
Enterprise information system architecture design is the process of defining and optimizing its structure (both software and hardware) to effectively support provided functionality. System architects are combining software and hardware vital components, us...