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Dive into the research topics where Georgios Giannakopoulos is active.

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Featured researches published by Georgios Giannakopoulos.


Journal of Systems and Information Technology | 2014

Human factor and information security in higher education

Efthymia Metalidou; Catherine Marinagi; Panagiotis Trivellas; Niclas Eberhagen; Georgios Giannakopoulos; Christos Skourlas

– The purpose of this paper is to investigate the association of lack of awareness and human factors and the association of lack of awareness and significant attacks that threat computer security in higher education. , – Five human factors and nine attacks are considered to investigate their relationship. A field research is conducted on Greek employees in higher education to identify the human factors that affect information security. The sample is consisted of 103 employees that use computers at work. Pearson correlation analysis between lack of awareness and nine (9) computer security risks is performed. , – Examining the association of lack of awareness with these attacks that threat the security of computers, all nine factors of important attacks exert significant and positive effect, apart from phishing. Considering the relationship of lack of awareness to human factors, all five human factors used are significantly and positively correlated with lack of awareness. Moreover, all nine important attacks, apart from one, exert a significant and positive effect. , – The paper extends understanding of the relationship of the human factors, the lack of awareness and information security. The study has focused on employees of the Technological Educational Institute (TEI) of Athens, namely, teachers, administrators and working post-graduate students. , – The paper has used weighted factors based on data collection in higher education to calculate a global index for lack of awareness, as the result of the weighted aggregation of nine (9) risks, and extends the analysis performed in the literature to evaluate the effectiveness of security awareness in computer risk management.


Library Review | 2016

Self-other agreement for improving communication in libraries and information services

Ioannis C. Drivas; Damianos P. Sakas; Georgios Giannakopoulos

Purpose – This paper aims to examine the Self-Other Agreement between leaders and employees in the sector of Libraries and Information Services (LIS) to construct a sustainable and strategic communicational process among library directors and staff. Design/methodology/approach – A sample of 135 leaders-employees of 17 organisations of LIS in more than five countries answered on a quantitative methodological research instrument in a multiplicity of variables. Statistical analysis of independent samples t-test was used to testify our research hypotheses. Findings – Results indicated that there is a difference in means between the two independent samples (leaders-employees). There are library leaders who rate themselves quite high, and there are employees who rate their leaders with lower evaluations. Research limitations/implications – This research extends and improves the matter of Self-Other Agreement in the sector of LIS through the collection of data that indicated a possible gap of communication and t...


Library Review | 2016

Integration of institutional repositories and e-learning platforms for supporting disabled students in the higher education context

Christos Skourlas; Anastasios Tsolakidis; Petros Belsis; Dimitris Vassis; Argyrw Kampouraki; Panos Kakoulidis; Georgios Giannakopoulos

Purpose – Institutional repositories (IR) are usually used to archive and manage digital collections including research results, educational material, etc. Learning management systems (LMS) form a popular basis for e-learning and blended learning. This paper aims to study how to integrate IR and LMS to support accessibility of disabled students and students with learning difficulties (dyslexic students) in higher education. Customised ontologies focusing on disabled students can be used to facilitate indexing, and access of items in the repository. Design/methodology/approach – The authors propose a simple methodological approach to establish an integrating system for supporting accessibility. First, the authors review research works related to adaptive learning environments (ALEs) and blended learning, and discuss issues of the interoperability of IR and LMS. Then, based on the review, the authors discuss the use of an integrated ALE for supporting disabled students in the domain of higher technological ...


INTERNATIONAL CONFERENCE ON INTEGRATED INFORMATION (IC-ININFO 2014): Proceedings of the 4th International Conference on Integrated Information | 2015

DSpace and customized controlled vocabularies

Christos Skourlas; Anastasios Tsolakidis; Panos Kakoulidis; Georgios Giannakopoulos

The open source platform of DSpace could be defined as a repository application used to provide access to digital resources. DSpace is installed and used by more than 1000 organizations worldwide. A predefined taxonomy of keyword, called the Controlled Vocabulary, can be used for describing and accessing the information items stored in the repository. In this paper, we describe how the users can create, and customize their own vocabularies. Various heterogeneous items, such as research papers, videos, articles and educational material of the repository, can be indexed in order to provide advanced search functionality using new controlled vocabularies.


Library Review | 2014

Archival studies in greece and the emerging field of integrated information

Georgios Giannakopoulos; Ioannis Koumantakis

Purpose – The purpose of this paper is to present a survey carried out on a sample of Greek university students (including students of library and archival science) that aimed to map and clarify perceptions of the archive among the students as well as their understanding of the nature of archival science. Moreover, it intends to investigate the information regarding student’s opinions and expectations about their archival studies. Design/methodology/approach – Two separate groups took part in this research and were asked to answer a questionnaire with 16 closed-type multiple-choice questions. The first group included 244 individuals, all of them Higher-Educational Institutions students from almost all academic fields. The second group contained 130 students from the three Information Departments of Greece. Findings – The conclusions verify Greek society’s view of archives. Even though no consistent definition of the archive seems to exist among the sample of students on which this survey drew, there is a ...


Library Review | 2014

School libraries’ impact on secondary education: a users’ study

Georgios Bikos; Panagiota Papadimitriou; Georgios Giannakopoulos

Purpose – The purpose of this paper is to offer an overview of students’ and teachers’ perceptions of school libraries’ impact on academic performance in secondary education in Greece, using sociological analysis to assess the data and contextualise it in the particular case and social context of Greece after the crisis. Design/methodology/approach – This paper developed structured questionnaires for the key categories of users visiting school libraries, teachers and students, trying to explore a set of questions which would give us a better image of their behaviour. The results from our empirical study, following the creation and distribution of a purpose made questionnaire in secondary schools in the area of Athens, was then evaluated in the context of sociological analysis. This paper argued that social factors may explain discrepancy in opinions regarding school libraries’ (SLs) role. Findings – The data which the paper present elucidates, not only the frequency and ways in which pupils of an age up t...


Education for Information | 2012

Teaching information as an integrated field: Assessing the curriculum of the LIS Dept of the TEI of Athens

Georgios Giannakopoulos; Daphne Kyriaki-Manessi; Spiros Zervos

This study focuses on assessing the results of the implementation of a curriculum based on the aforementioned principle. The study collected data from the student work experience program which took place after a three year implementation of the new curriculum. The work experience program took place in diverse information organizations and both parties involved, i.e. students and employers participated in the research. The research was designed to explore the degree of knowledge gained and the ability of students to apply it to diverse information organizations. Furthermore, it attempted to determine the needs of information organizations in specific areas of knowledge. The methodology used included two surveys with cross corresponding questions, one addressed to the students during the work experience program and the other to the hosting organizations. Results highlight the emerging students’ professionalism and indicate that students can manage at a good level all major information science tasks independently of the type of organization or the form of their collections. It became evident that students are able to work and implement professional tasks likewise in libraries, archives and museums. Similarly, organizations perceive their abilities and knowledge in the same way, independently of their nature. Suggestions for further improvement of the curriculum, deriving from the research described here, include the incorporation of a course or a module within a course regarding user education/information literacy.


INTERNATIONAL CONFERENCE ON INTEGRATED INFORMATION (IC-ININFO 2014): Proceedings of the 4th International Conference on Integrated Information | 2015

CIDOC-CRM extensions for conservation processes: A methodological approach

Evgenia Vassilakaki; Spiros Zervos; Georgios Giannakopoulos

This paper aims to report the steps taken to create the CIDOC Conceptual Reference Model (CIDOC-CRM) extensions and the relationships established to accommodate the depiction of conservation processes. In particular, the specific steps undertaken for developing and applying the CIDOC-CRM extensions for defining the conservation interventions performed on the cultural artifacts of the National Archaeological Museum of Athens, Greece are presented in detail. A report on the preliminary design of the DOC-CULTURE project (Development of an integrated information environment for assessment and documentation of conservation interventions to cultural works/objects with nondestructive testing techniques [NDTs], www.ndt-lab.gr/docculture), co-financed by the European Union NSRF THALES program, can be found in Kyriaki-Manessi, Zervos & Giannakopoulos (1) whereas the NDT&E methods and their output data through CIDOC-CRM extension of the DOC-CULTURE project approach to standardize the documentation of the conservation were further reported in Kouis et al. (2).


INTERNATIONAL CONFERENCE ON INTEGRATED INFORMATION (IC-ININFO 2014): Proceedings of the 4th International Conference on Integrated Information | 2015

Significance of clustering and classification applications in digital and physical libraries

Ioannis Triantafyllou; Alexandros Koulouris; Spiros Zervos; Markos Dendrinos; Georgios Giannakopoulos

Applications of clustering and classification techniques can be proved very significant in both digital and physical (paper-based) libraries. The most essential application, document classification and clustering, is crucial for the content that is produced and maintained in digital libraries, repositories, databases, social media, blogs etc., based on various tags and ontology elements, transcending the traditional library-oriented classification schemes. Other applications with very useful and beneficial role in the new digital library environment involve document routing, summarization and query expansion. Paper-based libraries can benefit as well since classification combined with advanced material characterization techniques such as FTIR (Fourier Transform InfraRed spectroscopy) can be vital for the study and prevention of material deterioration. An improved two-level self-organizing clustering architecture is proposed in order to enhance the discrimination capacity of the learning space, prior to cl...


metadata and semantics research | 2015

Standardizing NDT& E Techniques and Conservation Metadata for Cultural Artifacts

Dimitris Kouis; Evgenia Vassilakaki; Eftichia Vraimaki; Eleni Cheilakou; Amani Christiana Saint; Evangelos Sakkopoulos; Emmanouil Viennas; Erion-Vasilis M. Pikoulis; Nikolaos Nodarakis; Nick Achilleopoulos; Spiros Zervos; Georgios Giannakopoulos; Daphne Kyriaki-Manessi; Athanasios K. Tsakalidis; Maria Koui

Conservation activities, before and after decay detection, are considered as a prerequisite for maintaining cultural artifacts in their initial/original form. Taking into account the strict regulations where sampling from art works of great historical value is restricted or in many cases prohibited, the application of Non-Destructive Testing techniques (NDTs) during the conservation or even decay detection is highly appreciated by conservators. Non-destructive examination include the employment of multiple analysis approaches and techniques namely Infrared Thermography (IRT), Ultrasonics (US), Ground Penetrating Radar (GPR), VIS–NIR Fiber Optics Diffuse Reflectance Spectroscopy (FORS), portable X-Ray Fluorescence (XRF), Environmental Scanning Electron Microscopy with Energy Dispersive X-Ray Analysis (ESEM-EDX), Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR) and micro-Raman Spectroscopy. These produce a huge amount of data, in different formats, such as text, numerical sets and visual objects (i.e. images, thermograms, radargrams, spectral data, graphs, etc). Moreover, conservation documentation presents major drawbacks, as fragmentation and incomplete description of the related information is usually the case. Assigning conservation data to the objects’ metadata collection is very rare and not yet standardized. The Doc-Culture Project aims to provide solutions for the NDT application methodologies, analysis and process along with their output data and all related conservation documentation. The preliminary results are discussed in this paper.

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Alexandros Koulouris

Technological Educational Institute of Athens

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Daphne Kyriaki-Manessi

Technological Educational Institute of Athens

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Spiros Zervos

Technological Educational Institute of Athens

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Christos Skourlas

Technological Educational Institute of Athens

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Sryridon Zervos

Technological Educational Institute of Athens

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Daphne Kyriaki Manesi

Technological Educational Institute of Athens

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Dimitris Kouis

Technological Educational Institute of Athens

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Evagelia Lappa

Technological Educational Institute of Athens

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