@conference {Theodoropoulos_2019_atmf,
	title = {ATMF: A student-centered framework for the effective implementation of alternative teaching methods for CSEd},
	booktitle = {Proceedings of the Innovative Teaching of Introductory Topics in Information Technology - 3(IT) Workshop in the context of the 19th IFIP Conference on e-Business, e-Services and e-Society (I3E 2019)},
	year = {2019},
	month = {01/2020},
	abstract = {<p>The dynamic development of Informatics introduces new educational and pedagogical challenges, including the instructional design of teaching and learning. How can we teach our students better in such a growing and demanding field? Moreover, how can we motivate them and together have better learning results? This paper aims to give answers to these questions, through a student-centered framework for effectively encompassing alternative teaching methods within CS. The proposed framework (ATMF) summarizes the benefits of alternative teaching methods in contrast with known is-sues of traditional teaching. In addition, ATMF is built upon empirical evidence and concludes that alternative practices, if used under the right conditions, can provide increased motivation for learning and better learning out-comes.</p>
},
	keywords = {Alternative Teaching Methods, Computer Science Education, Teaching Framework},
	doi = {10.1007/978-3-030-39634-3_11},
	author = {Anastasios Theodoropoulos and Costas Vassilakis and Angela Antoniou and Manolis Wallace and Giorgos Lepouras}
}
@conference {Margaris2013RCIS,
	title = {Adapting WS-BPEL scenario execution using collaborative filtering techniques},
	booktitle = {IEEE 7th International Conference on Research Challenges in Information Science (RCIS)},
	year = {2013},
	month = {may},
	publisher = {IEEE},
	organization = {IEEE},
	abstract = {WS-BPEL has been adopted as the predominant method for composing individual web services into higher-level business processes. The designers of WS-BPEL scenarios define at development time the specific web services that will be invoked in the context of the business process they model; in the context however of the current web, where each functionality is offered by multiple service providers, under different quality of service parameters, using a fixed BPEL scenario has been recognized to be inadequate for servicing the diverse needs of business processes clients. To this end, WS-BPEL scenario execution adaptation has been proposed, mainly allowing clients to specify quality of service policies, which drive the dynamic selection of the services that will be invoked. In this paper, we present a framework extending the quality of service-based adaptation mechanisms with collaborative filtering techniques, allowing clients to further refine the adaptation process by considering service selections made by other clients, in the context of the same business processes.},
	doi = {10.1109/rcis.2013.6577691},
	author = {Dionisis Margaris and P. Georgiadis and Costas Vassilakis}
}
@article {lep2008a1,
	title = {An active blackboard for service discovery, composition and execution},
	journal = {International Journal of Electronic Governance},
	volume = {1},
	number = {3},
	year = {2008},
	pages = {275 - 295},
	publisher = {Inderscience Publishers},
	abstract = {Organisations are turning to customer-centric electronic services, oriented to servicing customers{\textquoteright} life-events. This development requires methods for automatically locating and synthesising individual services to compose complex ones that will service the customer{\textquoteright}s life-events, since manual composition, either at the customer or the organisation side, incurs functional, economic and technical problems. In this paper we present an active blackboard architecture, which automates the task of service composition based on the semantics of individual services and data dependencies between them. The blackboard incorporates registries, which facilitate service discovery and an execution engine that arranges for dynamic service composition and execution.},
	keywords = {blackboard architecture, e-government, e-services, electronic governance, electronic services, ontologies, semantics, service composition},
	doi = {10.1504/IJEG.2008.020450},
	author = {Giorgos Lepouras and Costas Vassilakis and Anya Sotiropoulou and Dimitrios Theotokis and Akrivi Katifori}
}
@conference {kalikakis2007b,
	title = {An Approach for re-engineering the Taxation Process to Support Participatory Decisions on Tax Budget Allocation},
	booktitle = {Proceedings of the 1st International Conference on Methodologies, Technologies and Tools enabling e-Government},
	year = {2007},
	month = {9},
	abstract = {The tax collection process has been described as a bureaucratic one, that confines citizen involvement to the role of passive fulfillment of administrative and financial obligations. Active citizen participation, in the form of some political say on the allocation of collected taxes which could potentially improve and further legitimize tax collection, is not a part of the traditional taxation model. In this paper we describe a new taxation model which, in the spirit of participatory budgeting approaches, supports active citizens? participation on decision making regarding tax funds allocation.},
	author = {M. Kalikakis and D. Gouscos and Costas Vassilakis and P. Georgiadis}
}
@conference {Lepouras2005573,
	title = {An active ontology-based blackboard architecture for Web service interoperability},
	booktitle = {2005 International Conference on Services Systems and Services Management, Proceedings of ICSSSM{\textquoteright}05},
	volume = {1},
	year = {2005},
	note = {cited By (since 1996) 1},
	month = {6},
	pages = {573-578},
	abstract = {Web services are functional, independent components that can be called over the web to perform a task. Web services are provided by organizations to enable others to perform tasks the organization offers online. However, with an ever increasing number of web services, finding the web service that performs a certain task is not always easy. Furthermore, adopting an end-user point of view what is needed is the actual result and not the service per se. It is often the case that more than one service have to be combined to produce the anticipated outcome, e.g. in the case of life-events. To this end, we propose an active, ontology-based blackboard architecture that aims at tackling the problems inherent in dynamic synthesis of composite web services and at facilitating user interaction with complex e-government transactions. Β{\textcopyright} 2005 IEEE.},
	keywords = {Active blackboard architecture, Computer architecture, Electronic commerce, Interoperability, Ontology-based architecture, Web service synthesis, World Wide Web},
	doi = {10.1109/ICSSSM.2005.1499537},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33745256434\&partnerID=40\&md5=d1cd6446d2f3bc9ed098036d2f2bd384},
	author = {Giorgos Lepouras and Costas Vassilakis and Anya Sotiropoulou and Dimitrios Theotokis and Akrivi Katifori}
}
@inbook {lepbook2005a,
	title = {Adaptable and Adaptive Hypermedia Systems},
	year = {2005},
	pages = {190{\textendash}205},
	publisher = {IRM Press},
	organization = {IRM Press},
	chapter = {Adaptive Virtual Museums on the Web},
	abstract = {This chapter presents an architecture for supporting the creation of adaptive virtual reality museums on the web. It argues whether the task of developing adaptive virtual reality museums is a complex one, presenting key challenges, and should thus be facilitated by means of a supporting architecture and relevant tools. The proposed architecture is flexible enough to cater for a variety of user needs, and modular promoting extensibility, maintainability and tailorability. Adoption of this architecture will greatly simplify the development of adaptive virtual reality museums, reducing the needed effort to exhibit digitisation and user profile specification; user profiles are further refined dynamically through the user data recorder and the user modelling engine, which provide input for the virtual environment generator.},
	doi = {10.4018/978-1-59140-567-2.ch010},
	author = {Giorgos Lepouras and Costas Vassilakis},
	editor = {S. Y. Chen and G. D. Magoulas}
}
@conference {Dimitrios00anapproach,
	title = {An Approach to Designing and Implementing Virtual Museums},
	booktitle = {Proceedings of the seventh UK VR-SIG Conference},
	year = {2000},
	month = {9},
	abstract = {The current paper describes an approach to designing and implementing a virtual environment comprising ten different museums. The number of museums as well as the variety of their exhibits lead to the adoption of a generalised strategy that catered for all museum presentation needs and allowed for future expansion. Furthermore, the system architecture supports the delivery of multimedia content either over the Internet or via a local immersive virtual reality installation.},
	author = {D. Charitos and Giorgos Lepouras and Costas Vassilakis and Akrivi Katifori and C. Halatsis}
}
