Kleftodimos Alexandros

• PhD in Computer Science, MSc in Computer Science, BSc in Mathematics
• Professor (Assistant) at University of Western Macedonia

Animated videos have been used in education for many years, and their efficacy in enhancing student motivation, engagement, and performance has been evaluated and reported in many studies. The aim of this study is twofold. First, after examining seventy-seven research articles, this study will attempt to provide an updated comprehensive literature...

Augmented reality (AR) applications are currently used in many fields for communication and educational purposes. Tourism is also a sector where augmented reality is used for destination marketing and cultural heritage promotion. This study will focus on mobile location-based AR applications and their potential in tourism. Such applications can gui...

The aim of this paper is to present an approach that utilizes several mixed reality technologies for touristic promotion and education. More specifically, mixed reality applications and games were created to promote the mountainous areas of Western Macedonia, Greece, and to educate visitors on various aspects of these destinations, such as their hi...

Location-based Augmented Reality (AR) is a type of markerless AR technology where content is activated when a user reaches a specific location. This type of AR is currently used in many fields, such as tourism, recreational games, marketing, education, and initiatives that combine these purposes. Location-based AR applications typically rely on the...

Augmented reality (AR) applications are regarded as effective experiential marketing practices that can help companies promote their products/services in an interactive manner and deliver exceptional consumer experiences. The purpose of the present study is to evaluate a wine-label AR mobile application by examining its impact on consumer experienc...

Location-based Augmented Reality applications are increasingly used in many research and commercial fields. Some of the fields that these applications are used are recreational digital games, tourism, education, and marketing. This study aims to present a location-based augmented reality (AR) application for cultural heritage communication and educ...

Today, augmented reality (AR) applications are being used in many fields, such as advertising, entertainment, tourism, and education. Location-based augmented reality (AR) is a technology where interactive digital content is associated with real-world locations and their geo-based markers. The merging of the real-world environment with the digital...

Oral communication and presentation skills are considered key competencies for many academic fields and professions, including science-related ones. Therefore, it is vital that students are given sufficient class time in the curriculum for practicing public speaking. It is well documented in the literature that video technology can be of valuable a...

Augmented reality (AR) technologies are constantly developing in various fields of communication such as entertainment, education, information, and marketing and other fields such as industrial product design among others. This paper aims to present an integrated AR workflow for the labelling of wine products. The proposed wine label enhancement wo...

Location-based AR games are becoming increasingly popular in education. With location-based AR games, learners can obtain knowledge by visiting places of educational value through informative digital content that is activated and displayed on their mobile devices when specific locations are reached. To create location-based AR games, there are seve...

The study pursues a line of inquiry into male and female candidates’ political campaign strategies on Facebook, drawing a sample from the 2019 National elections in Greece. The findings suggest that both genders disseminate one-way campaign information and address a wider palette of political issues than the ones typically associated with their gen...

In this paper, we study the concepts, materials, tools, and applications that constitute what we call augmented reality (AR) for the wine industry. A comprehensive review of what are the basic multimedia content for constructing successful AR applications for wine products is given. To this end, we provide a detailed analysis of how AR technology i...

The use of online videos is a common practice today in education and this is evident from the abundance of free online courses that are delivered by universities, educational organizations as well as individual professionals. In most cases, the videos that exist in educational platforms are linear without any scope for interactivity and in cases wh...

This paper analyzes the communication strategies used by Greek local governments through the utilization of Web 2.0 technologies, specifically Facebook, and the effectiveness of these strategies in relation to citizens’ online engagement. More specifically, it examines Facebook communication strategies and levels of citizens’ engagement. For this p...

The aim of the present study is to examine the communication strategies used by Greek mayors in Twitter across different periods of an electoral cycle (pre-campaign, campaign, and post-campaign). Moreover, this study tries to delineate the effects of Twitter strategies on users’ engagement and identify the most effective ones. To that end, a conten...

The present study1 examines the communication strategies used by Greek local governments on Facebook as well as their effectiveness in engaging citizens' online. Towards this end, a content analysis was conducted on the active and official Facebook pages of local municipalities in Greece. Results suggest that local governments are using Facebook in...

The purpose of this study is the development of a citizen-centric framework for the evaluation of municipal websites that is validated in the context of Greek local governments. The proposed model consists of four categories, 14 factors/indices and 83 criteria. The framework incorporates the different aspects of e-government as well as e-democracy....

This paper addresses the importance of “knowledge” and “access to information” in the formation of young citizens’ opinion through deliberative procedures. The research presented in this paper is grounded in the theoretical framework of deliberative democracy as a democratic model and procedure that allows participants to be engaged in a rational a...

Online videos are extensively used in education, and a recent trend is the integration of interactive elements and Web content into educational videos. This paper describes in brief how open source tools can be used for developing learning environments where video content is aggregated with interactive elements, educator content, and content coming...

The purpose of the present study is first to evaluate local e-government initiatives in Greece from a citizen perspective and then to test how well Greek municipalities perform on the most important e-government applications as perceived by citizens. Towards this end, a citizen survey was conducted using an instrument that contained 14 indices and...

The purpose of the present study is to investigate the main antecedents of candidates' popularity on social media. Herein, social media popularity was measured based on the number of Facebook page likes, Twitter followers, and YouTube video views. Our analysis focuses on candidates from Greece who run for the 2014 European Parliamentary elections....

The purpose of this study is to examine the use of social media such as Facebook, Twitter, and YouTube by candidates running for the 2014 Greek Municipal Elections by addressing the following questions: (1) which factors affect social media adoption by municipal candidates?, and (2) whether social media usage along with the popularity of candidates...

The use of online videos is a common practice today amongst education professionals. Interactive features in videos are constantly evolving and a recent trend is the integration of interactive elements and web content into educational videos. The paper (a) provides a roadmap for using open source tools and open internet resources to develop a learn...

This paper aims to develop a citizen-centric framework for the evaluation of local e-government projects. Hence, the demand-side of e-government is taken into consideration. The proposed model consists of four categories (i.e., information, transaction, interaction-participation, and integration), 14 factors/indices and 83 criteria. The framework i...

Are Greek local governments moving towards e-government 2.0 model? What are the factors that impact adoption of Web 2.0 tools? What is the effectiveness of these tools in terms of citizens’ awareness, interest, and engagement? The present study addresses these questions by investigating the usage and effectiveness of Web 2.0 applications employed b...

This study compared the effects between face-to-face and online deliberation on young citizens’ attitudes about opinion polls. Two parallel experiments were conducted to test the outcomes of the two modes of deliberation in terms of (a) significance, (b) direction, and (c) valence of changes. Results suggest that online deliberation affected more r...

The purpose of this study is the development of a citizen-centric framework for the evaluation of local e-government projects that is validated in the context of Greek municipalities. The proposed model consists of four categories, 14 factors/indices and 83 criteria. The framework incorporates the different aspects of e-government as well as e-demo...

This paper addresses the importance of “knowledge” and “access to information” for the formation of young citizens’ opinion on specific topics through deliberative procedures. The research presented in this paper is grounded on the theoretical framework of deliberative democracy as a democratic model and procedure, which allows participants to be e...

Online videos are extensively used in education and a recent trend is the integration of interactive elements and web content into educational videos. This paper describes in brief how open source tools can be used for developing learning environments where video content is aggregated with interactive elements, educator content and content coming f...

The purpose of this study is to examine the use of Facebook by candidates running for the 2014 Greek Municipal Elections by addressing the following questions: (1) which factors affect Facebook adoption by municipal candidates?, and (2) whether Facebook usage along with the popularity of candidates’ Facebook pages influence candidates’ vote share....

The purpose of the present study is to evaluate local e-government initiatives in Greece from a citizens’ perspective. Towards this end, an instrument was developed that contained 14 indices and assessed citizens’ perceived importance of e-government as well as e-democracy features incorporated in municipal portals. Results indicate that Greek citi...

In this paper an experiment was conducted to assess the impact of online deliberation on citizens’ attitudes. Specifically, this research compared pre and post deliberation opinions of participants who deliberated online via an asynchronous platform regarding the issue of political opinion polls. Results indicate that online deliberation had a posi...

The purpose of the present study is to evaluate local e-government initiatives in Greece from a citizens’ perspective. Towards this end, an instrument was developed that contained 14 indices and assessed citizens’ perceived importance of e-government as well as e-democracy features incorporated in municipal portals. Results indicate that Greek citi...

The present study deals with the usage and effectiveness of Facebook pages of 325 Greek local municipal governments. Towards this end, a model was proposed to evaluate Facebook engagement of citizens that is comprised of four elements, namely awareness, attitude expression, engagement, and advocacy. This model captures low as well as more active fo...

In this paper, an experiment was conducted to assess the impact of online deliberation on citizens’ attitudes. Specifically, this research compared pre and post deliberation opinions of participants who deliberated online via an asynchronous platform regarding the issue of political opinion polls. Results indicate that online deliberation had a pos...

On line video is a powerful tool for e-learning and this is evident from a number of reports, research papers and university initiatives, which portray that online video is becoming an important medium for delivering educational content. Therefore, research that focuses on how students view educational videos becomes of particular interest and in p...

Online video use in education is an expanding trend and research that focuses on how students view educational videos becomes of particular interest. In our previous work, we argued that in order to conduct a detailed analysis of the learner viewing behavior we have to deploy tools that log the learner activity and assist statistical analysis and d...

Web 2.0 has transformed user involvement and has created more active, more engaged, more participative, and more demanding users, citizens, and voters. This chapter explores the use of Facebook by candidates during the November 2010 Greek Municipal elections. In particular, this study undertakes an in-depth analysis of the use of Facebook by candid...

Web 2.0 has transformed user involvement and has created more active, more engaged, more participative, and more demanding users, citizens, and voters. This chapter explores the use of Facebook by candidates during the November 2010 Greek Municipal elections. In particular, this study undertakes an in-depth analysis of the use of Facebook by candid...

This paper provides an overview of the advances on web mining in the domain of education by categorizing research on the field using the web-mining taxonomy: web content, web usage and web structure mining. Previous reviews focused on data mining methods applied to data derived from educational software applications (web based or not) and instituti...

Online educational videos are increasingly used by a great number of educators. Besides the typical linear, non-interactive videos, educational videos today can contain other features such as interactivity and quizzes. This paper provides a framework for recording, monitoring and analyzing learner activity behavior while watching or interacting wit...

Web 2.0 has transformed user involvement and has created more active, more engaged, more participative and more demanding users, citizens and voters. This work investigates party initiatives on the Web 2.0 over a period that covers the European Parliament Elections of 2009, the October 2009 Greek National Elections and the Greek Financial Crisis in...