@conference {821,
	title = {RoG: A Pipeline for Automated Sensitive Data Identification and Anonymisation},
	booktitle = {Proceedings of the 2023 IEEE CSR Workshop on Data Science for Cyber Security (DS4CS)},
	year = {2023},
	abstract = {<p>Nowadays, the amount of data available online is constantly increasing. This data may contain sensitive or private information that can expose the person behind the data or be misused by malicious actors for identity theft, stalking, and other nefarious purposes. There is thus, a growing need to protect individuals{\textquoteright} privacy and prevent data breaches in several application domains. Protecting data privacy though, is a complex and multifaceted issue that involves a range of legal, ethical, and technical considerations. In this paper, we discuss the challenges associated with data protection, the role of automated tools, and the effectiveness of identifying and anonymising sensitive data. We then, propose a fully-automated process for sensitive data identification and anonymisation, based on Natural Language Processing (NLP) techniques, that can be applied both in big diverse datasets and to a wide range of domains.</p>
},
	keywords = {anonymisation, automated process, k-anonymity, NER, NLP, pipeline, sensitive/private data},
	author = {Sotiris Nikoletos and Stefanos Vlachos and Efstathios Zaragkas and Costas Vassilakis and Christos Tryfonopoulos and Paraskevi Raftopoulou}
}
@article {715,
	title = {Bringing a peripheral, traditional venue to the digital era with targeted narratives},
	journal = {Digital Applications in Archaeology and Cultural Heritage},
	volume = {14},
	year = {2019},
	month = {sep},
	pages = {e00111},
	abstract = {The current work presents a method of enhancing museum content with narratives targeting history reflection in a personalized manner, delivered by an especially designed mobile app. The mobile app is a part of a technology ecosystem that supports the visitor before, during and after her visit. Within the framework of the European H2020 CrossCult project, a method was designed, implemented and tested to enhance museum content with digital material, enriched narratives and means to actively engage visitors. In particular, the method was implemented and tested for the content of the Archaeological Museum of Tripolis (Greece) and specific content examples are presented here, together with data from visitor evaluation. The results showed that content was significantly and qualitatively enhanced and visitors recognized the potential of the app in triggering visitor curiosity, new forms of engagement, and the ability to reflect on the connections between historical and social phenomena.},
	keywords = {Cultural heritage, Museum app, Narratives, reflection, Visitor experience},
	doi = {10.1016/j.daach.2019.e00111},
	url = {https://www.sciencedirect.com/science/article/pii/S2212054819300098},
	author = {Angeliki Antoniou and Susana Reboreda Morillo and George Lepouras and Jason Diakoumakos and Costas Vassilakis and Martin Lopez Nores and Catherine Emma Jones}
}
@inbook {Vasilakis2018BigData,
	title = {Big Data Platforms and Applications},
	year = {2018},
	publisher = {Springer},
	organization = {Springer},
	chapter = {exhiSTORY: Smart self-organizing exhibits},
	abstract = {Creating stories for exhibitions is a fascinating and in parallel laborious task. As every exhibition is designed to tell a story, museum curators are responsible for identifying, for each exhibit, its aspects that fit to the message of the story and position the exhibit at the right place in the story thread. In this context we analyze how the technological advances in the fields of sensors and Internet of Things can be utilized in order to construct a "smart space", which consists of self-organizing exhibits that cooperate with each other and provide visitors with comprehensible, rich, diverse, personalized and highly stimulating experiences. We present the system named "exhiSTORY" that intends to provide the appropriate infrastructure to be used in museums and places where exhibitions are held in order to support smart exhibits. The architecture of the system and its application potential is presented and discussed.},
	author = {Costas Vassilakis and Vassilis Poulopoulos and Angela Antoniou and Manolis Wallace and Giorgos Lepouras and Martin Lopez Nores},
	editor = {TBC}
}
@conference {PoulopoulosGIIS2018,
	title = {ExhiSTORY: IoT in the service of Cultural Heritage},
	booktitle = {Proceedings of the Global Information Infrastructure and Networking Symposium (GIIS 2018), Special Session on IoT and Cultural Heritage Protection},
	year = {2018},
	month = {oct},
	publisher = {IEEE},
	organization = {IEEE},
	abstract = {Creating stories for exhibitions is a fascinating and in parallel laborious task. As every exhibition is designed to tell a story, museum curators are responsible for analyzing each exhibit in order to extract messages that form a story and position accordingly the objects in correct order within the museum space. In this context, we analyze how the technological advances in the fields of sensors and the Internet of Things can be utilized in order to construct a {\textquotedblleft}smart space{\textquotedblright}, where exhibits can communicate with the visitors and to each other and can be organized automatically so that they can generate rich, personalized, coherent and highly stimulating experiences. We present the architecture of the system named {\textquotedblleft}exhiSTORY{\textquotedblright}, that intends to provide the appropriate infrastructure to be used in museums and places where exhibitions are held, in order to support smart exhibits. We discuss and analyze the architecture of the system and the ways of its application in a cultural space.},
	doi = {10.1109/GIIS.2018.8635759},
	author = {Vassilis Poulopoulos and Costas Vassilakis and Angela Antoniou and Manolis Wallace and Giorgos Lepouras and Martin Lopez Nores}
}
@article {Vassilakis_fgcs17,
	title = {exhiSTORY: Smart Exhibits That Tell Their Own Stories},
	journal = {Future Generation of Computer Systems},
	volume = {81},
	year = {2018},
	pages = {542-556},
	abstract = {Museum exhibitions are designed to tell a story; this story is woven by curators and in its context a particular aspect of each exhibit, fitting to the message that the story is intended to convey, is highlighted. Adding new exhibits to the story requires curators to identify for each exhibit its aspects that fit to the message of the story and position the exhibit at the right place in the story thread. The availability of rich semantic information for exhibits, allows for exploiting the wealth of meanings that museum exhibits express, enabling the automated or semi-automated generation of practically countless stories that can be told. Personalization algorithms can then be employed to choose from these stories the ones most suitable for each individual user, based on the semantics of the stories and information within the user profile. In this work we examine how opportunities arising from technological advances in the fields of IoT and semantics can be used to develop smart, self-organizing exhibits that cooperate with each other and provide visitors with comprehensible, rich, diverse, personalized and highly stimulating experiences. These notions are included in the design of a system named exhiSTORY, which also exploits previously ignored information and identifies previously unseen semantic links. We present the architecture of the system and discuss its application potential.},
	keywords = {Cultural heritage, IoT, personalization, Quality of Experience (QoE), Self-organizing exhibitions, semantics},
	doi = {https://doi.org/10.1016/j.future.2017.10.038},
	url = {https://www.sciencedirect.com/science/article/pii/S0167739X17324093},
	author = {Costas Vassilakis and Vassilis Poulopoulos and Angela Antoniou and Manolis Wallace and Giorgos Lepouras and Martin Lopez Nores}
}
@conference {boukoros2017,
	title = {Modeling Server Workloads for Campus Email Traffic Using Recurrent Neural Networks},
	booktitle = {Proceedings of the 24th International Conference on Neural Information Processing (ICONIP 2017)},
	year = {2017},
	pages = {57{\textendash}66},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {As email workloads keep rising, email servers need to handle this explosive growth while offering good quality of service to users. In this work, we focus on modeling the workload of the email servers of four universities (2 from Greece, 1 from the UK, 1 from Australia). We model all types of email traffic, including us-er and system emails, as well as spam. We initially tested some of the most popu-lar distributions for workload characterization and used statistical tests to evaluate our findings. The significant differences in the prediction accuracy results for the four datasets led us to investigate the use of a Recurrent Neural Network (RNN) as time series modeling to model the server workload, which is a first for such a problem. Our results show that the use of RNN modeling leads in most cases to high modeling accuracy for all four campus email traffic datasets.},
	keywords = {Email traffic, Model server workload, Recurrent neural network, Time series modeling},
	doi = {10.1007/978-3-319-70139-4_6},
	author = {Spyros Boukoros and Anupiya Nugaliyadde and Angelos Marnerides and Costas Vassilakis and Polychronis Koutsakis and Kok Wai Wong}
}
@proceedings {DBLP:conf/gis/2017,
	title = {Proceedings of the 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, GIS 2017, Redondo Beach, CA, USA, November 7-10, 2017},
	year = {2017},
	publisher = {ACM},
	isbn = {978-1-4503-5490-5},
	url = {http://dl.acm.org/citation.cfm?id=3139958},
	editor = {Erik G. Hoel and Shawn D. Newsam and Siva Ravada and Roberto Tamassia and Goce Trajcevski}
}
@conference {vas-euromed16,
	title = {Interconnecting Objects, Visitors, Sites and (Hi)Stories Across Cultural and Historical Concepts: The CrossCult Project},
	booktitle = {Digital Heritage. Progress in Cultural Heritage: Documentation, Preservation, and Protection},
	year = {2016},
	month = {10},
	pages = {501{\textendash}510},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Human History, is a huge mesh of interrelated facts and concepts, spanning beyond borders, encompassing global aspects and finally constituting a shared, global experience. This is especially the case regarding European history, which is highly interconnected by nature; however, most History-related experiences that are today offered to the greater public, from schools to museums, are siloed. The CrossCult project aims to provide the means for offering citizens and cultural venue visitors a more holistic view of history, in the light of cross-border interconnections among pieces of cultural heritage, other citizens viewpoints and physical venues. To this end, the CrossCult project will built a comprehensive knowledge base encompassing information and semantic relationships across cultural information elements, and will provide the technological means for delivering the contents of this knowledge base to citizens and venue visitors in a highly personalized manner, creating narratives for the interactive experiences that maximise situational curiosity and serendipitous learning. The CrossCult platform will also exploit the cognitive/emotional profiles of the participants as well as temporal, spatial and miscellaneous features of context, including holidays and anniversaries, social media trending topics and so forth.},
	doi = {10.1007/978-3-319-48496-9_39},
	url = {http://link.springer.com/chapter/10.1007/978-3-319-48496-9_39},
	author = {Costas Vassilakis and Angela Antoniou and Giorgos Lepouras and Manolis Wallace and Ioanna Lykourentzou and Y. Naudet}
}
@conference {bampatzia2016a,
	title = {The use of semantics in the CrossCult H2020 project},
	booktitle = {Proceedings of the second International KEYSTONE Conference, (IKC2016)},
	year = {2016},
	pages = {190{\textendash}195},
	abstract = {CrossCult is a newly started project that aims to make reflective history a reality in the European cultural context. In this paper we examine how the project aims to take advantage of advances in semantic technologies in order to achieve its goals. Specifically, we see what the quest for reflection is and, through practical examples from two of the project{\textquoteright}s flagship pilots, explain how semantics can assist in this direction},
	doi = {https://doi.org/10.1007/978-3-319-53640-8_17},
	url = {https://link.springer.com/chapter/10.1007/978-3-319-53640-8_17},
	author = {Stavroula Bampatzia and Omar Gustavo Bravo-Quezada and Angela Antoniou and Martin Lopez Nores and Manolis Wallace and Giorgos Lepouras and Costas Vassilakis}
}
@conference {masie2013,
	title = {Improving museum visitors{\textquoteright} Quality of Experience through intelligent recommendations: A visiting style-based approach},
	booktitle = {Proceedings of MASIE 2013 Workshop, co-located with the 9th International Conference on Intelligent Environments IE{\textquoteright}13},
	year = {2013},
	month = {7},
	address = {Athens, GR},
	abstract = {This paper investigates the effect that smart routing and recommendations can have on improving the Quality of Experience of museum visitors. The novelty of our approach consists of taking into account not only user interests but also their visiting styles, as well as modeling the museum not as a sterile space but as a location where crowds meet and interact, impacting each visitor?s Quality of Experience. The investigation is done by an empirical study on data gathered by a custom-made simulator tailored for the museum user routing problem. Results are promising and future potential and directions are discussed.},
	doi = {10.3233/978-1-61499-286-8-507},
	author = {Ioanna Lykourentzou and Claude, X. and Y. Naudet and Tobias, E. and Angela Antoniou and Giorgos Lepouras and Costas Vassilakis}
}
@proceedings {DBLP:conf/pkdd/2013-3,
	title = {Machine Learning and Knowledge Discovery in Databases - European Conference, ECML PKDD 2013, Prague, Czech Republic, September 23-27, 2013, Proceedings, Part III},
	volume = {8190},
	year = {2013},
	publisher = {Springer},
	isbn = {978-3-642-40993-6},
	doi = {10.1007/978-3-642-40994-3},
	url = {https://doi.org/10.1007/978-3-642-40994-3},
	editor = {Hendrik Blockeel and Kristian Kersting and Siegfried Nijssen and Filip Zelezn{\'y}}
}
@conference {gala2013,
	title = {User Profiling: Towards a Facebook Game that Reveals Cognitive Style},
	booktitle = {Proceedings of the GALA 2013 conference},
	year = {2013},
	month = {10},
	pages = {349{\textendash}353},
	address = {Paris, FR},
	abstract = {This paper presents an innovative approach based on social-network gaming, which will extract players? cognitive styles for personalization purposes. Cognitive styles describe the way individuals think, perceive and remember information and can be exploited to personalize user interaction. Questionnaires are usually employed to identify cognitive styles, a tedious process for most users. Our approach relies on a Facebook game for discovering potential visitors? cognitive styles with an ultimate goal of enhancing the overall visitors{\textquoteright} experience in the museum. By hosting such a game on the museum?s webpage and on Facebook, the museum aims to attract new visitors, as well as to support the user profiling process.},
	doi = {10.1007/978-3-319-12157-4_28},
	author = {Angela Antoniou and Ioanna Lykourentzou and Rompa, J. and Tobias, E. and Giorgos Lepouras and Costas Vassilakis and Y. Naudet}
}
@article {Maroulis2004267,
	title = {A web browser for ISDN card phones},
	journal = {Journal of Internet Technology},
	volume = {5},
	number = {3},
	year = {2004},
	note = {cited By (since 1996) 1},
	pages = {267-277},
	abstract = {In order to cover the ever-increasing need for more direct and easy access to information, new information access means need to be devised or existing ones need to be further exploited. In this paper, we present a mini Web Browser for ISDN card phones, which enables this widespread device to be used for accessing information in the World Wide Web. The implemented web browser supports HTML and WML pages, while special care was taken to tackle the limitations imposed by the ISDN card phone{\textquoteright}s hardware, such as small screen, limited keyboard, scarce processing and memory resources. One of the techniques employed to increase the capabilities of the ISDN card phone browser was the introduction of a proxy server, which transforms demanding media types to formats that can be handled by the ISDN card phone hardware.},
	keywords = {Bandwidth, Costs, Embedded systems, HTML, Information analysis, Integrated multiprotocol, ISDN card phone, Laptop computers, Mobile phones, Personal computers, Personal digital assistants, Proxy servers, Voice/data communication systems, Web browsers},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-4344632311\&partnerID=40\&md5=9242e761d5eedb61880ca004cdaa873d},
	author = {Maroulis, D. and Aronis, S. and Nassiapoulou, V. and Grammenos, N. and Costas Vassilakis}
}
@proceedings {DBLP:conf/chorochronos/2003,
	title = {Spatio-Temporal Databases: The CHOROCHRONOS Approach},
	volume = {2520},
	year = {2003},
	publisher = {Springer},
	isbn = {3-540-40552-6},
	doi = {10.1007/b83622},
	url = {https://doi.org/10.1007/b83622},
	editor = {Manolis Koubarakis and Timos K. Sellis and Andrew U. Frank and St{\'e}phane Grumbach and Ralf Hartmut G{\"u}ting and Christian S. Jensen and Nikos A. Lorentzos and Yannis Manolopoulos and Enrico Nardelli and Barbara Pernici and Hans-J{\"o}rg Schek and Michel Scholl and Babis Theodoulidis and Nectaria Tryfona}
}
@conference {599,
	title = {Agents in Decentralised Information Ecosystems: The DIET Approach},
	booktitle = {Symposium on Information Agents for E-Commerce, AISB Convention},
	year = {2001},
	month = {March},
	address = {University of York, United Kingdom},
	abstract = {The complexity of the current global information infrastructure requires novel means of understanding and exploiting the dynamics of information. One means may be through the concept of an information ecosystem. An information ecosystem is analogous to a natural ecosystem in which there are flows of materials and energy analogous to information flow between many interacting individuals. This paper describes a multi-agent platform, DIET (Decentralised Information Ecosystem Technologies) that can be used to implement open, robust, adaptive and scalable ecosystem-inspired systems. We describe the design principles of the DIET software architecture, and present a simple example application based upon it. We go on to consider how the DIET system can be used to develop information brokering agents, and how these can contribute to the implementation of economic interactions between agents, as well as identifying some open questions relating to research in these areas. In this way we show the capacity of the DIET system to support applications using information agents.},
	author = {P. Marrow and Manolis Koubarakis and R.H. van Lengen and F. Valverde-Albacete and E. Bonsma and J. Cid-Suerio and A.R. Figueiras-Vidal and A. Gallardo-Antolin and C. Hoile and T. Koutris and H. Molina-Bulla and A. Navia-Vazquez and Paraskevi Raftopoulou and N. Skarmeas and Christos Tryfonopoulos and F. Wang and C. Xiruhaki}
}
@conference {aisb01-MKL+,
	title = {Agents in Decentralised Information Ecosystems: The DIET Approach},
	booktitle = {Proccedings of the Symposium on Information Agents for E-Commerce, AISB Convention},
	year = {2001},
	month = {March},
	pages = {109{\textendash}117},
	address = {York, UK},
	author = {P. Marrow and Manolis Koubarakis and R.H. van Lengen and F. Valverde-Albacete and E. Bonsma and J. Cid-Suerio and A.R. Figueiras-Vidal and A. Gallardo-Antolin and C. Hoile and T. Koutris and H. Molina-Bulla and A. Navia-Vazquez and Paraskevi Raftopoulou and N. Skarmeas and Christos Tryfonopoulos and F. Wang and C. Xiruhaki}
}
@conference {1993-kassapidis-hci,
	title = {Comparative Study of Protocols of the Transport Layer for Multimedia Applications},
	booktitle = {Proceedings of the 4th Hellenic Conference on Informatics},
	year = {1993},
	month = {12},
	pages = {105-118},
	abstract = {The forthcoming use of multimedia applications will require powerful computers and high performance networks. While great progress has been made to the physical layer of networks, the upper software layers of the OSI reference model have not kept up pace with them. This paper presents the demands imposed by multimedia applications on the underlying networks and their mapping to transport layer services, that protocols implementing it must provide. Four well-known transport layer protocols are briefly presented (TCP, TP4, VMTP, HSTP/XTP). The mechanisms employed by each one of those are studied and their suitability for demanding multimedia environments are evaluated. We conclude that much more effort needs to be made on the transport layer protocols so that high performance network architectures will be available to fullfill the diverse requirements of tomorrow{\textquoteright}s multimedia applications.},
	url = {http://cst.uop.gr/images/papers/1993-kassapidis-hci.pdf},
	author = {Kassapidis, P. and Costas Vassilakis and M. Nikolaidou and P. Georgiadis and Votsis, Gr. and Pronios, N.}
}
@conference {1993-vassilakis-hci,
	title = {A Methodology for the Implementation of Software for the Design of Distributed Systems},
	booktitle = {Proceedings of the 4th Hellenic Conference on Informatics},
	year = {1993},
	month = {12},
	pages = {673{\textendash}686},
	abstract = {As the use of distributed systems is spreading, and applications designed for such systems become more and more demanding, optimal design of distributed systems becomes a critical issue. Designing a distributed system has become more complex, due to the number of alternatives for each decision that must be made and because of the existence of many parameters which influence the overal performance of the distributed system. Thus, it is necessary to use software tools, capable of accepting a description of the user{\textquoteright}s requirements and suggesting solutions to the problem of designing a distributed system which meets the user{\textquoteright}s requirements. In this paper, we present a disciplined approach to the construction of such a software tool, which combines methods from the Artificial Intelligence domain, that are used in order to design the distributed system, along with simulation techniques, used to estimate the system{\textquoteright}s overall performance.},
	author = {Costas Vassilakis and P. Georgiadis and D. Lelis and D. Mouzakis and M. Nikolaidou}
}
