Kostas Karpouzis

Prof. Kostas Karpouzis

Communication, Media and Culture, Panteion University, Athens, Attikí, Greece
orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 June 2020 in International Journal of Human-Computer Studies
Verified
Journal Article
Open access
NLNikoletta-Zampeta Legaki
Nikoletta-Zampeta Legaki
NXNannan Xi
Nannan Xi
JHJuho Hamari
Juho Hamari
Kostas KarpouzisKostas Karpouzis
Kostas Karpouzis
VAVassilios Assimakopoulos
Vassilios Assimakopoulos
• We investigated the impact of gamification on learning in statistics education. • We examined challenge-based gamification (points, levels, challenges, leaderboard). • We ran a 2 (read yes | no) x 2 (gamification yes | no) between-subject experiment. • Gamification had a positive impact on learning. • Effect was larger for females and Engineering students versus Business School students.

25 October 2008 in Multimedia Tools and Applications
Verified
Journal Article
Closed access
PDF file
SAStylianos Asteriadis
Stylianos Asteriadis
Paraskevi TzouveliParaskevi Tzouveli
Paraskevi Tzouveli
Kostas KarpouzisKostas Karpouzis
Kostas Karpouzis
Stefanos KolliasStefanos Kollias
Stefanos Kollias

19 November 2013 in IEEE Transactions on Cybernetics
Verified
Journal Article
Closed access
NSNoor Shaker
Noor Shaker
SAStylianos Asteriadis
Stylianos Asteriadis
GYGeorgios N. Yannakakis
Georgios N. Yannakakis
Kostas KarpouzisKostas Karpouzis
Kostas Karpouzis
Estimating affective and cognitive states in conditions of rich human-computer interaction, such as in games, is a field of growing academic and commercial interest. Entertainment and serious games can benefit from recent advances in the field as, having access to predictors of the current state of the player (or learner) can provide useful information for feeding adaptation mechanisms that aim to maximize engagement or learning effects. In this paper, we introduce a large data corpus derived from 58 participants that play the popular Super Mario Bros platform game and attempt to create accurate models of player experience for this game genre. Within the view of the current research, features extracted both from player gameplay behavior and game levels, and player visual characteristics have been used as potential indicators of reported affect expressed as pairwise preferences between different game sessions. Using neuroevolutionary preference learning and automatic feature selection, highly accurate models of reported engagement, frustration, and challenge are constructed (model accuracies reach 91%, 92%, and 88% for engagement, frustration, and challenge, respectively). As a step further, the derived player experience models can be used to personalize the game level to desired levels of engagement, frustration, and challenge as game content is mapped to player experience through the behavioral and expressivity patterns of each player.

11 April 2024 in Electronics
Verified
Journal Article
Open access
PDF file
Kostas KarpouzisKostas Karpouzis
Kostas Karpouzis
Generative Artificial Intelligence (AI) systems, like ChatGPT, have the potential to perpetuate and amplify cultural biases embedded in their training data, which are predominantly produced by dominant cultural groups. This paper explores the philosophical and technical challenges of detecting and mitigating cultural bias in generative AI, drawing on Plato’s Allegory of the Cave to frame the issue as a problem of limited and distorted representation. We propose a multifaceted approach combining technical interventions, such as data diversification and culturally aware model constraints, with a deeper engagement with the cultural and philosophical dimensions of the problem. Drawing on theories of extended cognition and situated knowledge, we argue that mitigating AI biases requires a reflexive interrogation of the cultural contexts of AI development and a commitment to empowering marginalized voices and perspectives. We claim that controlling cultural bias in generative AI is inseparable from the larger project of promoting equity, diversity, and inclusion in AI development and governance. By bridging philosophical reflection with technical innovation, this paper contributes to the growing discourse on responsible and inclusive AI, offering a roadmap for detecting and mitigating cultural biases while grappling with the profound cultural implications of these powerful technologies.

10 December 2013 in International Journal of Computer Vision
Verified
Journal Article
Closed access
PDF file
SAStylianos Asteriadis
Stylianos Asteriadis
Kostas KarpouzisKostas Karpouzis
Kostas Karpouzis
Stefanos KolliasStefanos Kollias
Stefanos Kollias

1 June 2021 in Technological Forecasting and Social Change
Verified
Journal Article
Open access
NLNikoletta-Zampeta Legaki
Nikoletta-Zampeta Legaki
Kostas KarpouzisKostas Karpouzis
Kostas Karpouzis
VAVassilios Assimakopoulos
Vassilios Assimakopoulos
JHJuho Hamari
Juho Hamari