Konstantina Chrysafiadi

ORCID: 0000-0001-8096-1407
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About
Contact & Profiles
Research Areas
  • Intelligent Tutoring Systems and Adaptive Learning
  • Online Learning and Analytics
  • Fuzzy Logic and Control Systems
  • Educational Technology and Assessment
  • Educational Games and Gamification
  • Cognitive Science and Mapping
  • Context-Aware Activity Recognition Systems
  • IoT-based Smart Home Systems
  • AI-based Problem Solving and Planning
  • Multi-Criteria Decision Making
  • Teaching and Learning Programming
  • Artificial Intelligence in Games
  • Energy Efficiency in Computing
  • Innovative Teaching and Learning Methods
  • Open Education and E-Learning
  • E-Learning and Knowledge Management
  • Rough Sets and Fuzzy Logic
  • Online and Blended Learning
  • Music and Audio Processing
  • Virtual Reality Applications and Impacts
  • Speech and dialogue systems
  • Big Data Technologies and Applications
  • Infrastructure Resilience and Vulnerability Analysis
  • Learning Styles and Cognitive Differences
  • Ferroelectric and Negative Capacitance Devices

University of Piraeus
2014-2025

National and Kapodistrian University of Athens
2005

In this paper, a novel approach to web-based education that performs individualized instruction on the domain of programming languages is presented. This fully implemented and evaluated in an educational application module, called fuzzy knowledge state definer (FuzKSD). particular, FuzKSD user modeling by dynamically identifying updating student's level all concepts knowledge. The operation based cognitive maps (FCMs) are used represent dependences among concepts. uses sets as subset Thus,...

10.1109/tfuzz.2014.2310242 article EN IEEE Transactions on Fuzzy Systems 2014-03-11

Abstract Nowadays, the improvement of digital learning with Artificial Intelligence has attracted a lot research, as it provides solutions for individualized education styles which are independent place and time. This is particularly case computer science, tutoring domain, rapidly growing changing such, learners need frequent update courses. In this paper, we present thorough evaluation fuzzy-based intelligent system (ITS), that teaches programming. The concerns multiple aspects ITS....

10.1007/s10639-022-11444-3 article EN cc-by Education and Information Technologies 2022-11-17

In this paper, a fuzzy-based evaluation method is presented for the impact of e-learning on several aspects learning lives academic students Information and Communication Technologies (ICT) during COVID-19 pandemic. Specifically, year 2020–2021 was considered when general lockdown imposed in Greece all courses were delivered exclusively through web. The criteria are (i) acceptance, (ii) effectiveness, (iii) students’ engagement (iv) socializing interpersonal relationships educational...

10.3390/electronics12020428 article EN Electronics 2023-01-13

In this paper, we present an Intelligent Tutoring System (ITS), for use in teaching the logic of computer programming and language ‘C’. The aim ITS is to adapt delivered learning material lesson sequence knowledge level needs each individual student. adaptation presented based on fuzzy a machine technique. Particularly, system uses distance weighted k-nearest neighbor algorithm detect learner’s abilities concerning during her/ his first interaction with system. Next subsequent interactions...

10.1142/s0218213023600114 article EN International Journal of Artificial Intelligence Tools 2023-03-07

In the era of smart tourism, providing seamless and personalized experiences has become significant for enhancing user satisfaction engagement. This paper presents a novel fuzzy logic-based application system designed to enhance personalization in tourism. The proposed integrates real-time data delivers customized services each particular user. particular, incorporates recommendation mechanism that combines TOPSIS (Technique Order Preference by Similarity Ideal Solution) with logic assess...

10.3390/math13050846 article EN cc-by Mathematics 2025-03-03

As Artificial Intelligence becomes increasingly integrated into educational games, conforming with the General Data Protection Regulation (GDPR)—a legal framework governing data protection and privacy in European Union—remains an important yet complex challenge, particularly when minors are involved. Users required to provide consent multiple times, often unexpectedly, at different game levels. This process is further complicated by varying durations for which remains valid. a result,...

10.1177/18724981251322884 article EN other-oa Intelligent Decision Technologies 2025-03-18

In this paper a knowledge representation approach of an adaptive and/or personalized tutoring system is presented. The domain should be represented in more realistic way order to allow the deliver learning material each individual learner dynamically taking into account her/his needs and different pace. To succeed this, has depict possible increase or decrease learner's knowledge. Considering that concepts constitute are not independent from other, recognize either already partly completely...

10.1186/2193-1801-2-81 article EN SpringerPlus 2013-03-05

Abstract An educational game aims to employ the pleasant and fascinating environment of a for purpose. However, when game’s content or playing does not match with player’s learning needs game-playing skills, player can find either too easy difficult decide drop it. Therefore, successful has offer Dynamic Difficulty Adjustment (DDA) both environment. Considering above, in this paper fuzzy-based DDA mechanism 3D-game, that teaches programming language ‘HTML’, is presented. The adapts...

10.1007/s11042-023-14515-w article EN cc-by Multimedia Tools and Applications 2023-02-16

<?Pub Dtl=""?> This paper describes ELaC, a fully implemented and evaluated novel integrated environment for personalized e-training in programming the language C. Software development relies on many different languages tools, ranging from procedural to object-oriented query languages; an individual learning new may already know range of other languages, or no at all. Given variety backgrounds prospective learners programming, developing environments all them is not easy. In light these...

10.1109/te.2013.2243914 article EN IEEE Transactions on Education 2013-02-14

Towards the last decade, digital education has become a burning issue in related scientific literature and involves production of Intelligent Tutoring Systems (ITSs). ITSs are adaptive educational applications that enrich tutoring learning processes with "intelligence" by divulging abilities weaknesses each student, order to provide him/her personalized experience. A crucial factor systems is testing, indeed testing. It challenge create an test includes most suitable...

10.1109/smc.2018.00049 article EN 2022 IEEE International Conference on Systems, Man, and Cybernetics (SMC) 2018-10-01

This paper explores the integration of ChatGPT, a state-of-the-art language model, in domain cultural heritage Artificial Intelligence-based e-learning, with specific focus on analysis and interpretation lyrics poems. Cultural preservation education have increasingly turned to Intelligence (AI) technologies enhance learning experiences promote understanding appreciation diverse artistic expressions. We conducted an initial empirical study how ChatGPT can assist learners analysing...

10.1109/iisa59645.2023.10345878 article EN 2023-07-10

Testing is a significant part of the teaching and learning process. An assessment test has to include items that are tailored individual needs students in order be more accurate support effective way. In this paper, fuzzy-based mechanism presented for automatic personalized an e-learning system computer programming. Particularly, selection most appropriate each student based on variety criteria: (i) student’s knowledge level, (ii) prior programming, (iii) type programming errors prone make,...

10.3233/idt-220227 article EN Intelligent Decision Technologies 2022-11-29

The quizzes allow the tutor to assess student's knowledge level briefly. However, creating a quiz is challenging task that requires time and effort. If wants create multiple tailored needs, needed construct them increases dramatically. Furthermore, large pool of questions activities makes personalised more complex. A solution above employing genetic algorithms quickly automatically produce tests. algorithm uses complex mathematical forms, which tutors various domains find difficult...

10.1109/iisa59645.2023.10345881 article EN 2023-07-10
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