@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 {kalikakis2007a,
	title = {Towards a P2P world: peered taxation},
	booktitle = {Proceedings of the 2nd International Workshop "E-taxation: State \& Perspectives"},
	year = {2007},
	month = {2},
	abstract = {This paper presents the current model for taxation and distribution of the taxes to government activities, and an alternative model is presented, according to which tax-payers can determine, to some extent, the way that the taxes they pay will be spent. The goal of this proposal is to increase citizen involvment and system transparency. The model proposal comescomplete with an architecture that supports the realization of the proposed scheme},
	author = {M. Kalikakis and D. Gouscos and Costas Vassilakis and P. Georgiadis}
}
@conference {vassilakis05b,
	title = {A Blackboard-oriented Architecture for e-Government service composition},
	booktitle = {Proceedings of the IRMA 2005 conference},
	year = {2005},
	month = {5},
	abstract = {A requirement for electronic government initiatives to succeed is the ability to offer a citizen-centric view of the government model. The most widely adopted paradigm supporting this task is the life event model, which combines basic services offered from multiple public authorities into a single, high-level service that corresponds to an event in a citizen{\textquoteright}s life. This composition is not always straightforward though, because the constituent services are generally developed in an independent fashion, using incompatible input and output formats; moreover the task of synchronising the documents required and produced by the services is tedious to implement and costly to maintain, since changes to requirements and legislation necessitate continuous updates to this scheme. In this paper, we present a blackboard architecture that can be used to deliver life-event oriented services to the citizens. The blackboard proposed for this architecture is an active one, undertaking the tasks of conversions, where appropriate. The blackboard couples a data flow approach with event-condition-action rules to enable dynamic formulation of life-event services, decentralising their development and maintenance.},
	author = {Costas Vassilakis and Anya Sotiropoulou and Dimitrios Theotokis and D. Gouscos}
}
@conference {Vassilakis2005421,
	title = {A semantics-based consultations workbench},
	booktitle = {ITI 3rd International Conference on Information and Communications Technology, ICICT 2005 - Enabling Technologies for the New Knowledge Society},
	volume = {2005},
	year = {2005},
	note = {cited By (since 1996) 0},
	month = {12},
	pages = {421-434},
	abstract = {Econsultations constitute an effective means to inclusive and informed participation of citizens and society in policy, decision and law formulation processes, and an answer to democratic deficit issues. Econsultation platforms need to support all stages of consultation processes including agenda setting and topics raising, legislation proposal publicity, notification of developments, proposal debate and commentary, collection, analysis and synthesis of views. In this paper we present the design of an open platform assisting policy makers and the civil society in the set-up, enactment, management and federation of inclusive and informed digital consultations. The proposed platform employs semantic techniques, such as semantics, content annotation and summarization to support the consultation processes and provide targeted and digested information to participants, and facilitates tailoring of Econsultation procedures by offering basic Econsultation activities as building blocks, which can be combined according to contextual needs. The platform also enables distinct Econsultation processes to be federated, allowing the exchange of information, which may be subject to different semantic annotations and classifications, according to the rules of each Econsultation process.},
	keywords = {Classification (of information), Content annotation, Data transfer, Decision making, Econsultations, Knowledge based systems, Logic programming, Platform architecture, Public policy, Semantic technologies, semantics},
	doi = {10.1109/ITICT.2005.1609641},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33847729948\&partnerID=40\&md5=54c7a246c0ee9ae483889741a327253b},
	author = {Costas Vassilakis and D. Gouscos and P. Georgiadis}
}
@conference {667640,
	title = {An Object-Oriented Approach for Designing Administrative E-forms and Transactional E-services},
	booktitle = {OOIS {\textquoteright}02: Proceedings of the 8th International Conference on Object-Oriented. Information Systems},
	year = {2002},
	month = {9},
	pages = {19{\textendash}30},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	address = {London, UK},
	abstract = {Although electronic transaction services are considered to be a necessity for e-government, it has not been possible insofar to unleash their full potential. E-forms are central to the development of e-government, being a basic means for implementing the majority of the public services considered as required for local and central public administration authorities. In this paper, we present an object-oriented model for e-form-based administrative services, which spans the e-service lifecycle, including development, deployment and use by enterprises and citizens, data collection and communication with legacy information systems. The proposed approach encompasses semantic, structural and active aspects of e-forms, providing thus an inclusive framework for modelling electronic services.},
	isbn = {3-540-44087-9},
	doi = {10.1007/3-540-46102-7_6},
	author = {D. Gouscos and S. Rouvas and Costas Vassilakis and P. Georgiadis}
}
@conference {1990-hatzopoulos-delta,
	title = {An Object-Oriented Data Model for Hypermedia Systems},
	booktitle = {Proceedings of the DELTA Conference in Research and Development},
	year = {1990},
	month = {10},
	pages = {483{\textendash}493},
	abstract = {Hypermedia [1] is a fast growing field of research interest because of the new aspects introduced as far as it concerns the interaction between the machine and the user. The innovative features mainly refer to - the presence of various information types (multimedia environment) - the mapping of the semantic connections between information items into a flexible, efficient representation. This feature enables navigation through the information network in a meaningful way. Our effort concentrated on the definition and partial implementation of a flexible, general-purpose model through which the full capabilities of object-oriented programming can be exploited.},
	keywords = {databases},
	url = {http://cst.uop.gr/images/papers/1990-hatzopoulos-delta.pdf},
	author = {M. Hatzopoulos and D. Gouscos and M. Spiliopoulou and Costas Vassilakis and M. Vazirgiannis}
}
