@article {vassilakis-snam-2017a,
	title = {Stimulation of reflection and discussion in museum visits through the use of social media},
	journal = {Social Network Analysis and Mining},
	volume = {7},
	number = {40},
	year = {2017},
	month = {12},
	pages = {1-12},
	publisher = {Springer-Verlag GmbH Austria},
	abstract = {In this paper, we examine how social media can be linked to cultural heritage and in particular how we can incorporate games, social networks, history reflection and culture. More specifically, we explore the following aspects: (a) how social media sites can be integrated into the museum user experience (b) how user interactions within the social media, both within the context of the museum experience and outside it, can be exploited to enhance the quality of recommendations made to the users, (c) how trending topics from social media can be used to link museum exhibits with today{\textquoteright}s topics of interest and (d) how multi-level related terms extraction from social media data can lead to proposals for reflections to users. The end goal is to provide increased stimuli for users to study exhibits deeper and reflect on them, as well as to trigger discussion between the users, thus maximizing the impact of a museum visit.},
	keywords = {big data, cognitive style, Communication, reflection, Social Networks, user profiling},
	doi = {10.1007/s13278-017-0460-3},
	url = {https://link.springer.com/article/10.1007/s13278-017-0460-3},
	author = {Costas Vassilakis and Angela Antoniou and Giorgos Lepouras and Vassilis Poulopoulos and Manolis Wallace and Stavroula Bampatzia and Ioannis Bourlakos}
}
@conference {bampatzia-gala2016,
	title = {Serious games: Valuable Tools for Cultural Heritage},
	booktitle = {Proceedings of the 2016 Games and Learning Alliance Conference},
	year = {2016},
	month = {12},
	pages = {331{\textendash}341},
	abstract = {Wishing to connect cultural heritage, games and social networks, the present work describes games to be used within the framework of a European H2020 project. For the purposes of supporting the museum visit, before, during and after, 5 games were designed for social networks to accomplish user profil-ing, to promote the museum and the application through social network dissemi-nation, to introduce museum items and themes and to also function as visit sou-venirs. The games are also presented in a generic framework for games in cultural heritage, which has been used successfully in the past.},
	doi = {https://doi.org/10.1007/978-3-319-50182-6_30},
	url = {https://link.springer.com/chapter/10.1007/978-3-319-50182-6_30},
	author = {Stavroula Bampatzia and Ioannis Bourlakos and Angela Antoniou and Costas Vassilakis and Giorgos Lepouras and Manolis Wallace}
}
@conference {Akim2011a,
	title = {Spreading Activation for Web Scale Reasoning: Promise and Problems},
	booktitle = {WebSci 11, poster presentation},
	year = {2011},
	month = {6},
	pages = {1-4},
	abstract = {Various forms of spreading activation has been used in a number of web systems, not least in the PageRank algorithm. In our own work we have been using this as a technique for managing context over small and large ontologies, and both our own work and that in LarKC suggests that spreading activation has the potential to aid in reasoning over web-scale data sets including the growing set of linked open data resources. Of particular importance is that spreading activation can be applied locally to a dynamic selfselecting working set of an (practically) unbound linked data collection, as well as globally to the entire collection. However, this potential does not come without problems, some concerning the nature of the algorithm on any large data set, and some more to do with the particular nature of linked open data.},
	author = {Nazihah Md. Akim and Alan Dix and Akrivi Katifori and Giorgos Lepouras and Nadeem Shabir and Costas Vassilakis}
}
@article {dix2010,
	title = {Spreading Activation Over Ontologies: From Personal Context To Web Scale Reasoning},
	journal = {International Journal of Semantic Computing},
	volume = {Special issue on Web Scale Reasoning},
	year = {2010},
	pages = {59{\textendash}102},
	abstract = {This paper describes methods to allow spreading activation to be used on web-scale information resources. Existing work has shown that spreading activation can be used to model context over small personal ontologies, which can be used to assist in various user activities, for example, in autocompleting web forms. This previous work is extended and methods are developed by which large external repositories, including corporate information and the web, can be linked to the user?s personal ontology and thus allow automated assistance that is able to draw on the entire web of data. The basic idea is augment the personal ontology with cached data from external repositories, where the choice of what data to fetch or discard is related to the level of activation of entities already in the personal ontology or cached data. This relies on the assumption that the working set of highly active entities is relatively small; empirical results are presented, which suggest these assumptions are likely to hold. Implications of the techniques are discussed for user interaction and for the social web. In addition, warm world reasoning is proposed, applying rule-based reasoning over activate entities, potentially merging symbolic and sub-symbolic reasoning over web-scale knowledge bases.},
	doi = {10.1142/S1793351X10000973},
	author = {Alan Dix and Akrivi Katifori and Giorgos Lepouras and Costas Vassilakis and Nadeem Shabir}
}
@conference {Katifori2008133,
	title = {Selected results of a comparative study of four ontology visualization methods for information retrieval tasks},
	booktitle = {Proceedings of the 2nd International Conference on Research Challenges in Information Science, RCIS 2008},
	year = {2008},
	note = {cited By (since 1996) 0},
	month = {6},
	pages = {133-140},
	abstract = {The need for effective ontology visualization for design, management and browsing has arisen as a result of the progress in the areas of Semantic Web and Personal Information Management. There are several ontology visualizations available through existing ontology management tools, but not as many evaluations to determine their advantages and disadvantages and their suitability for various ontologies and user groups. This work presents selected results of an evaluation of four visualization methods in ProtΓ{\textcopyright}gΓ{\textcopyright}.},
	keywords = {Communication, Comparative studies, Information management, Information retrieval, Information science, Information services, Information theory, Management, Management information systems, Ontology, Ontology managements, Personal Information managements, Semantic Web, Telecommunication services, User groups, User interfaces, Visualization, visualization methods},
	doi = {10.1109/RCIS.2008.4632101},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-57349172797\&partnerID=40\&md5=1f36a9a0febecb929cd7904c84004143},
	author = {Akrivi Katifori and Elena Torou and Costas Vassilakis and Giorgos Lepouras and C. Halatsis}
}
@article {Lepouras2003248,
	title = {A system to support dissemination of knowledge and sharing of experiences in the working environment: Review Code 066},
	journal = {International Journal of Continuing Engineering Education and Lifelong Learning},
	volume = {13},
	number = {3/4},
	year = {2003},
	pages = {248-257},
	publisher = {Inderscience Publishers},
	abstract = {In the information era, enterprises strive to be productive and efficient. One feature of this goal is for employers to engage their employees in education programs, to help them to gain new experiences and knowledge and to adapt to an ever-changing working environment. Such programs must be carefully designed in order to achieve satisfactory results. Recently, enterprises, recognising the role that technology can play in the education of their employees, have adopted systems that supplement the traditional educational model with mechanisms that enable the sharing of experiences and knowledge. In this paper we describe an architecture and a system prototype that allows users to search easily for information, interact with colleagues and share experiences, and to compose and disseminate best practices and knowledge. The design of this system is based on insights gained from the operation of the Greek taxation system.},
	keywords = {Education computing, Engineering education, Information dissemination, Integrated systems, Knowledge based systems, Systems analysis},
	doi = {10.1504/ijceell.2003.003277},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0041975974\&partnerID=40\&md5=3fdaf5e728f5571c01c70507e0ad7004},
	author = {Giorgos Lepouras and Costas Vassilakis and G.R.S. Weir}
}
@conference {649749,
	title = {Serving Enhanced Hypermedia Information},
	booktitle = {Proceedings of the 24th BCS-IRSG European Colloquium on IR Research},
	year = {2002},
	month = {3},
	pages = {86{\textendash}92},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	address = {London, UK},
	abstract = {An apparent limitation of existing Web pages is their inability to accommodate differences in the interests and needs of individual users. The present paper describes an approach that dynamically customises the content of public Web-based information via an interceding {\textquoteright}enhancement server{\textquoteright}. The design and operation of this system is described with examples drawn from two current versions. Indications from early trials support the view that this approach affords considerable scope for accommodating the needs and interests of individual Web users.},
	isbn = {3-540-43343-0},
	doi = {10.1007/3-540-45886-7_6},
	author = {Giorgos Lepouras and Costas Vassilakis and G.R.S. Weir}
}
@conference {lep2002a1,
	title = {SMARTGOV: A Governmental Knowledge-based Platform for Public Sector Online Services},
	booktitle = {Proceedings KMGov2002},
	year = {2002},
	month = {5},
	pages = {173{\textendash}185},
	address = {Copenhagen, Denmark},
	abstract = {Public transaction services (such as e-forms), although perceived the future of e-government have not yet realised their full potential. E-forms have a significant role in e-government, as they are the basis for realising most of the twenty public services that all European Union member states have to provide to their citizens and businesses. The aim of this paper is to present a knowledge-based platform to assist public sector employees to generate online transaction services by simplifying their development, maintenance and integration with already installed IT systems.},
	author = {E. Tambouris and G. Boukis and Costas Vassilakis and Giorgos Lepouras and S. Rouvas and Canadas, R. and Heredia, S. and Lopez Usero, J. C.}
}
@conference {Georgiadis_2002,
	title = {SmartGov: A Knowledge-Based Platform for Transactional Electronic Services},
	booktitle = {Lecture Notes in Computer Science},
	year = {2002},
	month = {9},
	pages = {362-369},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	abstract = {Public transaction services (such as e-forms) although perceived the future of e-government have not yet realised their full potential. E-forms have a significant role in e-government, as they are the basis for implementing most of the twenty public services that all member states have to provide to their citizens and businesses. The aim of the SmartGov project is to specify, develop, deploy and evaluate a knowledge-based platform to assist public sector employees to generate online transaction services by simplifying their development, maintenance and integration with already installed IT systems. This platform will be evaluated in two European countries (in one Ministry and one Local Authority). This paper outlines key issues in the development of the SmartGov system platform.},
	doi = {10.1007/978-3-540-46138-8_59},
	url = {https://link.springer.com/chapter/10.1007/978-3-540-46138-8_59},
	author = {P. Georgiadis and Giorgos Lepouras and Costas Vassilakis and G. Boukis and E. Tambouris and S. Gorilas and E. Davenport and A. Macintosh and J. Fraser and D. Lochhead}
}
@conference {vassil99a,
	title = {Is Server-Side Programming Killing Your Web Server?},
	booktitle = {Proceedings of the ActiveWeb 99 Conference},
	year = {1999},
	month = {10},
	address = {Staffordshire University},
	abstract = {The paper addresses issues related to client/server technologies and specifically the effectiveness of server-side programming techniques. The motive for this study was the need to create a lightweight and dynamic navigational aid for use in a web site. Towards this goal a number of possible solutions were considered and for two of them an experiment was run to determine the best suited for our case. The rest of the paper outlines our findings.},
	url = {http://www.visualize-uk.com/conf/activeweb/proceed/pap7/},
	author = {Costas Vassilakis and Giorgos Lepouras}
}
