Konstantinos Zervoudakis

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• Doctor of Philosophy
• Ph.D. at Technical University of Crete

This paper introduces a new method called the Mayfly Algorithm (MA) to solve optimization problems. Inspired from the flight behavior and the mating process of mayflies, the proposed algorithm combines major advantages of swarm intelligence and evolutionary algorithms. To evaluate the performance of the proposed algorithm, 38 mathematical benchmark...

The aim of the current paper is to introduce a global optimization algorithm, inspired from the survival strategies of flying foxes during a heatwave, called as Flying Foxes Optimization (FFO). The proposed method exploits a Fuzzy Logic (FL) technique to determine the parameters individually for each solution, thus resulting in a parameters-free op...

Theatrical performance constitutes a complicated way for students to express and to communicate with each other, since it targets both various artistic and educational goals. Even though it constitutes a top moment of students’ expression, several students do not feel comfortable when participating in such cultural activities, as performance anxiet...

Product design constitutes a critical process for a firm to stay competitive. Whilst the biologically inspired Clonal Selection Algorithms (CSA) have been applied to efficiently solve several combinatorial optimization problems, they have not yet been tested for optimal product lines. By adopting a previous comparative analysis with real and simula...

Designing a successful product line is a critical decision for a firm to stay competitive. By offering a line of products, the manufacturer can maximize profits or market share through satisfying more consumers than a single product would. The optimal Product Line Design (PLD) problem is classified as NP-hard. This paper proposes a Fuzzy Self-Tunin...

Customer segmentation, a critical strategy in marketing, involves grouping consumers based on shared characteristics like age, income, and geographical location, enabling firms to effectively establish different strategies depending on the target group of customers. Clustering is a widely utilized data analysis technique that facilitates the identi...

An adequate and reliable precautionary upkeep plan in power generation systems is required to reduce failures, to improve the generator's lifespan, to diminish repair costs and to ensure consistent power supply to consumers with managing the energy flows in power systems. The Generators’ Precautionary Upkeep Planning (GPUP) problem is a complex opt...

Anxiety is an important issue that affects their academic performance, mental health, and overall educational journey. To address this issue, it is important to accurately assess anxiety levels and provide evidence-based techniques. However, due to the complexity of anxiety and individual differences, analyzing clustering algorithms to efficiently...

The rapid shift to online education during the COVID-19 crisis has presented both challenges and opportunities for educators worldwide. This paper aims to analyze free-text comments from instructors at Greek Higher Education Institutions (HEIs), gathered during a quantitative survey on the impact of the intensive use of ICT during the lockdown. Top...

Unveiling the intersection of technology and art, this research aims to explore the vital role of Computational Intelligence (CI) techniques in shaping digital theater performances within virtual worlds by managing student populations engaged in these productions. The realm of digital theater offers opportunities for creative expression and collabo...

The aim of this study is to apply a multi-objective product line optimization approach for reducing food waste while balancing profit and buyer’s welfare. The proposed approach is based on a Non-dominated Sorting Genetic Algorithm II (NSGA-II) and it is used for addressing the NP-hard problem of product line redesign, by optimizing both economic an...

The aim of this study is to investigate the challenges and opportunities faced by university instructors in using ICT technologies during the COVID-19 pandemic. The study utilized a dataset collected through an online survey of university instructors in Greece during the lockdown and applied advanced topic modelling techniques using Large Language...

Research indicates that the importance the social validity of an appropriate principal-selection method may have, as well as the importance of the parameters that affect it, is directly related to the acceptance or reaction of the candidates to it and their job satisfaction. The aim of this quantitative research is to examine and present the candid...

Product design constitutes a critical process for a firm, which if not implemented effectively it may even question its viability. The optimal product line design is an NP-hard problem, where a company aims at designing a set of products that will optimize a specific objective. Whilst Tabu Search (TS) has effectively solved a large number of combin...

Η διδακτική αυτοαποτελεσματικότητα των καθηγητών ειδικής αγωγής για την υποστήριξη μαθητών ειδικής αγωγής, δηλαδή ο βαθμός στον οποίο αισθάνονται αποτελεσματικοί κατά την άσκηση των διδακτικών τους καθηκόντων σε μαθητές που χρήζουν παράλληλης στήριξης, είναι βασικός παράγοντας της εκπαιδευτικής διαδικασίας για τη συμπερίληψη όλων των μαθητών και τη...

The theatrical performance at school is a top moment of expression of students' theatrical activities which is a complex form of expression and communication that pursues both pedagogical and artistic goals. However, some students feel uncomfortable participating in such cultural activities, as stage fright, an emotional experience that the individ...

The self-efficacy of special education teachers is a key aspect of the educational process for inclusive learning and co-teaching. However, research on self-efficacy perceptions in the area of special education and particularly in the field of parallel support is very limited. The aim of this research is to adapt a scale measuring the beliefs of sp...

The aim of this paper is to present a method that uses computational intelligence techniques to classify students according to the principles of differentiated instruction. A clustering algorithm based on particle swarm optimization is applied to two sets of data emerging from the holistic assessment of the student's particular characteristics and...

Σκοπός αυτής της εργασίας είναι η περιγραφή ενός ψυχομετρικού σταθμισμένου εργαλείου για τον ελληνικό πληθυσμό με την ονομασία «Ανίχνευση Μαθησιακών Δυσκολιών από εκπαίδευτικούς (Α.Μ.Δ.Ε.) των Παντελιάδου και Σιδερίδη (2007). Στα πλαίσια της εργασίας αυτής επιχειρείται η περιγραφή του από βιβλιογραφική σκοπιά, με αναφορές στο σκοπό και πλαίσιο το ο...

Σκοπός της εργασίας είναι η παρουσίαση μιας εφαρμογής που αξιοποιεί τεχνικές υπολογιστικής νοημοσύνης για την κατηγοριοποίηση των μαθητών σύμφωνα με τις αρχές της διαφοροποιημένης διδασκαλίας. Βάσει των αποτελεσμάτων, η εφαρμογή αλγόριθμου διαφορικής εξέλιξης σε δεδομένα που αναφύονται από την πολυπρισματική αξιολόγηση των χαρακτηριστικών και αναγκ...

Το παρόν εκπαιδευτικό σενάριο αποτελεί μία πρόταση διδασκαλίας των γεωμετρικών σχημάτων μέσα από παιχνίδια ρόλων για τις μικρές τάξεις του Δημοτικού σχολείου με τη χρήση δυναμικών ψηφιακών περιβαλλόντων. Η αξιοποίηση του ψηφιακού γεωπίνακα κατά τη διδασκαλία των γεωμετρικών σχημάτων προσφέρει ενδιαφέρον πλαίσιο εργασίας για τους μαθητές, δίνει ευκα...

The optimal product line design is one of the most critical decisions for a firm to stay competitive, since it is related to the sustainability and profitability of a company. It is classified as an NP-hard problem since no algorithm can certify in polynomial time that the optimum it identifies is the overall optimum of the problem. The focus of th...

Σκοπός της εργασίας είναι η σύγκριση τεχνικών υπολογιστικής νοημοσύνης για την κατηγοριοποίηση των μαθητών σύμφωνα με τις αρχές της εξατομικευμένης διδασκαλίας. Βάσει των αποτελεσμάτων, η εφαρμογή αλγόριθμου διαφορικής εξέλιξης και γενετικού αλγορίθμου σε δεδομένα που αναφύονται από την πολυπρισματική αξιολόγηση των χαρακτηριστικών και αναγκών του...

Performing mental calculations is a complex metacognitive activity that relies on the knowledge and basic skills of the learner, on the strategies he/she uses, and on his/her ability to refer to how he/she works, how he/she processes and how he/she recovers data from their cognitive system. The aim of the research is twofold; a) investigate the str...

Η εκτέλεση νοερών πράξεων αποτελεί μια σύνθετη δραστηριότητα που στηρίζεται στις δεξιότητες, στις στρατηγικές και στην ικανότητα ευελιξίας και προσαρμοστικότητας του ατόμου, ενώ συνδέεται με τη ανάπτυξη της αίσθησης των αριθμών και την κατανόηση των ιδιοτήτων του αριθμητικού συστήματος. Σκοπός της εργασίας είναι η διερεύνηση των αποτελεσματικών στρ...