Irene-Angelica Chounta

Irene-Angelica Chounta
University of Duisburg-Essen | uni-due · Abteilung Informatik und Angewandte Kognitionswissenschaft

PhD in Educational Technologies/Learning Analytics

About

86
Publications
19,322
Reads
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432
Citations
Citations since 2017
53 Research Items
353 Citations
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Introduction
Junior Professor (WISNA, Tenure-track), Computational Methods in Modeling and Analysis of Learning Processes, Department of Computer Science and Applied Cognitive Science, University of Duisburg-Essen --> https://www.uni-due.de/colaps/ Research Interests: Artificial Intelligence in Education (AIED), Learning Analytics, Student Modeling, Computer-Supported Collaborative Learning (CSCL), Computer-Supported Cooperative Work (CSCW), Human-Computer Interaction (HCI)
Additional affiliations
April 2021 - present
University of Duisburg-Essen
Position
  • Professor (Assistant)
Description
  • Computational Methods in Modeling and Analysis of Learning Processes
February 2018 - March 2021
University of Tartu
Position
  • Professor (Assistant)
Description
  • Exploring the use of Learning Analytics to provide personalized feedback and to scaffold learning.
April 2016 - February 2018
Carnegie Mellon University
Position
  • PostDoc Position
Description
  • Developing a student model to support the adaptation of tutorial dialogues for a physics intelligent tutoring system.
Education
January 2009 - June 2014
University of Patras
Field of study
  • Human Computer Interaction - Collaborative Technologies
June 2001 - June 2005
University of Patras
Field of study
  • Electrical and Computer Engineering
September 1996 - June 2000
University of West Attica
Field of study
  • Computer Systems

Publications

Publications (86)
Article
Full-text available
This paper presents the integration of a real time evaluation method of collaboration quality in a monitoring application that supports teachers in class orchestration. The method is implemented as an automatic rater of collaboration quality and studied in a real time scenario of use. We argue that automatic and semi-automatic methods which provide...
Article
Full-text available
(authors' copy) The analysis and evaluation of computer-supported collaborative activities is a complex and tedious task. However, it is necessary in order to support collaborative scenarios, to scaffold the collaborative knowledge building and to evaluate the learning outcome. Various automated techniques have been proposed to minimize the worklo...
Conference Paper
Full-text available
In this paper, we propose a computational approach to modeling the Zone of Proximal Development of students who learn using a natural-language tutoring system for physics. We employ a student model to predict students’ performance based on their prior knowledge and activity when using a dialogue tutor to practice with conceptual, reflection questio...
Conference Paper
Full-text available
In this paper, we explore how the time students take to solve a problem is related to their success. Even though prior research indicates that students' response times can provide some indication regarding correctness, time is not consistently and broadly used when modeling students' performance. We aim to clarify the relationship between the step...
Article
Full-text available
In this article, we present a study on teachers’ perceptions about Artificial Intelligence (AI) as a tool to support teaching in Estonian K-12 education. Estonia is promoting technological innovation in education. According to the Index of Readiness for Digital Lifelong Learning (IRDLL), Estonia was ranked first among 27 European countries. In this...
Conference Paper
On-demand help is suggested among the means of reinforcing help-seeking behaviors. This paper presents Help-Button, a closed-loop mechanism for Learning Management Systems that provides students a channel for on-demand support requests, and at the same time informs the teachers about students' progress to intervene accordingly. To explore Help-Butt...
Article
Full-text available
Starting as niche programming events, hackathons have since become a popular form of collaboration. Events are organized in various domains across the globe, aiming to foster innovation and learning, create and expand communities and tackle civic and environmental issues. While research around such events has grown in recent years, most studies are...
Chapter
Full-text available
Applications of pedagogical agent (PA) systems incorporating animated characters in school settings have mainly addressed students at an individual level. However, how these systems could be used and designed for supporting teachers while taking advantage of artificial intelligence (AI) technology is an open question. Therefore, we carried out a fo...
Article
Full-text available
Although the number of students in higher education institutions (HEIs) has increased over the past two decades, it is far from assured that all students will gain an academic degree. To that end, institutional analytics (IA) can offer insights to support strategic planning with the aim of reducing dropout and therefore of minimizing its negative i...
Conference Paper
Full-text available
Social media are an integral part of the daily lives of today’s young generation. In addition to the positive impact on learning through these channels, there are also risks related to toxic content like “fake news” on various social media. Fake news aims to change opinions based on disinformation or misinformation supporting conspiracy theories, e...
Conference Paper
“See the Image in Different Contexts”: Using Reverse Image Search to Support the Identification of Fake News in Instagram-Like Social Media
Preprint
Full-text available
In this article, an overview of the background, the research approaches and the patterns of practice in the field of collaborative learning are provided. A definition of collaborative learning and an overview of fundamental aspects that shape research and practice in this field are included. Pedagogies and learning theories that are used as foundat...
Preprint
Full-text available
We explore the impact of Casual Affective Triggers (CAT) on response rates of online surveys. As CAT, we refer to objects that can be included in survey participation invitations and trigger participants' affect. The hypothesis is that participants who receive CAT-enriched invitations are more likely to respond to a survey. We conducted a study whe...
Article
Full-text available
The potential of social media technology has made its use a daily habit among individuals, institutions, and communities. However, several studies on technology adoption, especially social media use in education, focus more on its impact on the student than the teacher, who is generally perceived as a key stakeholder. This study used purposive samp...
Chapter
Full-text available
Today’s young generation uses a variety of social media as part of their everyday life. This can be seen as an enrichment, but it is also the source of various threats: Filter bubbles and echo chambers are general phenomena that counter-balance free communication and exchange and can lead to toxic radicalization confirmation bias and polarization....
Article
Full-text available
This paper presents the findings of a study into the application process of the professional standards (PS) qualification in Estonia, which is a standard used to identify the level of professionalism of a teacher. The study collected the views of active teachers who have applied for the PS and those of the assessors to understand the shortcomings i...
Article
Full-text available
Providing adequate support to MOOC participants is often a challenging task due to massiveness of the learners’ population and the asynchronous communication among peers and MOOC practitioners. This workshop aims at discussing common learners’ problems reported in the literature and reflect on designing adequate feedback interventions with the use...
Conference Paper
Full-text available
The aim of this work is to provide data-driven insights regarding the factors behind dropouts in Higher Education and their impact over time. To this end, we analyzed stu-dents' data collected by a Higher Education Institute over the last 11 years and we explored how socioeconomic and academic changes may have impacted student dropouts and how thes...
Conference Paper
Full-text available
The use of Curriculum Analytics (CA) helps teachers, learners, as well as other institutional stakeholders to make evidence-based decisions at the program level to improve student success and reduce dropouts. This paper presents the first insights of a systematic literature review on Curriculum Analytics at Higher Education Institutions to determin...
Article
Jim Greer and his colleagues argued that student modelling is essential to provide adaptive instruction in tutoring systems and showed that effective modelling is possible, despite being enormously challenging. Student modelling plays a prominent role in many intelligent tutoring systems (ITSs) that address problem-solving domains. However, conside...
Article
Full-text available
People can learn a lot through (collaborative) reflection at work: In organizations, staff debate experiences and due to issues every day, thus reflecting together and learning from each other. While this is desirable, it is often hindered by differences in time and space. Online discussions in community-like systems may provide a means to overcome...
Article
Full-text available
Time-based events, such as hackathons and codefests, have become a global phenomenon attracting thousands of participants to hundreds of events every year. While research on hackathons has grown considerably, there is still limited insight into what happens to hackathon projects after the event itself has ended. While case studies have provided ric...
Conference Paper
Full-text available
In this paper we present a study that took place in an elementary school in Mexico. The study aimed to explore the use of a digital application for the design and orchestration of collaborative, game-based learning activities for STEAM and to study the impact of group formation with respect to students' background knowledge. In particular, our goal...
Chapter
Full-text available
In this paper we present a study that took place in an elementary school in Mexico. The study aimed to explore the use of a digital application for the design and orchestration of collaborative, game-based learning activities for STEAM and to study the impact of group formation with respect to students’ background knowledge. In particular, our goal...
Article
In this work, we theorise the role of the educational technologist in an educational institution as a “variety-handler”. That is, we theorise the educational technologist as responsible for the orchestration of educational and technical resources, namely tools, either to attenuate systemic variety or amplify regulative variety at a certain level of...
Conference Paper
Full-text available
In this paper, we present a computational approach to assess study success in a Higher Education academic institution. To that end, we employ data-mining and machine-learning methods to identify factors that may contribute to students' decision to drop out from their studies and to assess the risk of dropping out for each individual student. In ord...
Book
This book constitutes the proceedings of the 26th International Conference on Collaboration Technologies and Social Computing, CollabTech 2020. The conference was scheduled to take place in Tartu, Estonia, in September 2020. It was held virtually due to the COVID-19 pandemic. The 10 full and 5 work-in-progress papers presented in this volume were c...
Preprint
This work aims to propose a method to support students in finding appropriate peers in collaborative and blended learning settings. The main goal of this research is to bridge the gap between pedagogical theory and data driven practice to provide personalized and adaptive guidance to students who engage in computer supported learning activities. Th...
Chapter
Full-text available
This paper explores the design and development of two mobile applications that can be used to study a foreign language. Each application is designed with a different approach to learning. One immerses the learner into a traditional environment with the ability to review grammar, track personal statistics, and complete tasks. The other employs gamif...
Poster
Full-text available
This work aims to propose a method to support students in finding appropriate peers in collaborative and blended-learning settings. The main goal of this research is to bridge the gap between pedagogical theory and data-driven practice to provide personalized and adaptive guidance to students who engage in computer-supported learning activities. Th...
Chapter
In this entry, an overview of the background, the research approaches, and the patterns of practice in the field of collaborative learning are provided. A definition of collaborative learning and an overview of fundamental aspects that shape research and practice in this field are included. Pedagogies and learning theories that are used as foundati...
Chapter
This paper describes an initial pilot study of Rimac, a natural-language tutoring system for physics. Rimac uses a student model to guide decisions about what content to discuss next during reflective dialogues that are initiated after students solve quantitative physics problems, and how much support to provide during these discussions—that is, do...
Conference Paper
Full-text available
This work aims to propose a methodological framework to provide personalized and adaptive scaffolding to students who engage with computer-supported learning activities. Bridging the gap between pedagogical theories and established practice, my particular aim is to answer the following research questions: what makes scaffolding more beneficial for...
Article
Full-text available
Professional development is a key process within the wider agenda of raising standards and increasing societal growth capacity by improving teaching policy and practice in education. The aim of the research was to explore the relations between teacher’s professionality and occupational qualifications. Forty teachers were asked to estimate their ped...
Conference Paper
Full-text available
In this paper, we explore how we can model students' response times to predict student performance in Intelligent Tutoring Systems. Related research suggests that response time can provide information with respect to correctness. However, time is not consistently used when modeling students' performance. Here, we build on previous work that indicat...
Conference Paper
Full-text available
In this paper we share our experience from designing a Learning Analytics platform to support the needs of stakeholders from a higher-education academic institution in Estonia. We present the design framework and the architecture of our platform and we discuss how we aim to address challenges imposed by context. For the design of the platform, we c...
Conference Paper
Full-text available
In this paper, we explore how we can use step duration as a feature for predicting student performance. In particular, we aim to implement an enhanced version of a standard cognitive student model, the Additive Factors Analysis Model (AFM) using step duration as a quadratic predictive feature. Our work builds on related research that suggests that...
Book
This book constitutes the refereed proceedings of the 25th International Conference, CRIWG+CollabTech 2019, held in Kyoto, Japan in September 2019. The 12 full papers presented in this book together with 8 work-in-progress papers were carefully reviewed and selected from 28 submissions, and the program also included an invited talk. This year pres...
Preprint
Full-text available
In this report, we provide an overview of the most prominent Artificial Intelligence (AI) and Machine Learning (ML) practices used in educational contexts focusing on Open Educational Resources (OER) and educational portals aiming to support K-12 education. To that end, we will provide definitions and descriptions of relevant terms, a short histori...
Chapter
Full-text available
This paper discusses how a dialogue-based tutoring system makes decisions to proactively scaffold students during conceptual discussions about physics. The tutor uses a student model to predict the likelihood that the student will answer the next question in a dialogue script correctly. Based on these predictions, the tutor will, step by step, choo...
Conference Paper
Full-text available
In this paper, we present a study on group work in which student volunteers from different disciplines worked together to create an augmented reality expedition. The goal of the project was to develop an augmented campus tour for students. The project was successful in delivering the app but through post project interviews we found that volunteers...
Chapter
We describe and illustrate factors that specify what it means for a tutor to provide different “levels of support”, based on our analyses of models of the levels of support provided during human tutoring and teacher-led small group work. We then show how we used these factors to implement contingent scaffolding in a tutorial dialogue system for...
Article
Full-text available
Dev Camps are events that enable participants to tackle challenges using software tools and different kinds of hardware devices in collaborative project-style activities. The participants conceptualize and develop their solutions in a self-directed way, involving technical, organizational and social skills. In this sense, they are autonomous produc...
Article
Full-text available
Organizations conduct series of face-to-face meetings aiming to improve work practices. In these meetings, participants from different backgrounds collaboratively design artifacts, such as knowledge or process maps. Such meetings are orchestrated and carried out by facilitators and the success of the meetings almost solely depends on the experience...
Conference Paper
Full-text available
In this paper, we propose a computational approach to model the Zone of Proximal Development (ZPD) using predicted probabilities of correctness while students engage in reflective dialogue. We employ a predictive model that uses a linear function of a variety of parameters, including difficulty and student knowledge, as students use a natural-langu...
Article
Full-text available
Dev Camps are events that enable participants to tackle challenges using software tools and different kinds of hardware devices in collaborative project-style activities. The participants conceptualize and develop their solutions in a self-directed way, involving technical, organizational and social skills. In this sense, they are autonomous produc...
Conference Paper
Full-text available
Research has shown that the construction of visual representations may have a positive effect on cognitive skills, including argumentation. In this paper we present a study on learning argumentation through computer-supported argument diagramming. We specifically focus on whether students, when provided with an argument-diagramming tool, create bet...
Article
Full-text available
To further develop rich and expressive ways of modelling roles of contributors in discussion forums of massive open online courses (MOOCs), we analyse a networks of forum users based on the relations of information-giving and information seeking. Specific connection patterns that appear in the information exchange networks of forum users are used t...
Conference Paper
This paper describes the analysis of the social and semantic structure of discussion forums in massive open online courses (MOOCs) in terms of information exchange and user roles. To that end, we analyse a network of forum users based on information-giving relations extracted from the forum data. Connection patterns that appear in the information e...
Article
Full-text available
In graph visualizations, dynamic networks are a special challenge. A typical approach is visualizing the network at several points in time. Drawing these individual time slices often leads to changes in the layout that distract viewers from important information about individual nodes. In this article, we present a mathematical model to quantify th...
Article
Full-text available
The European Go-Lab project aims to promote Inquiry-based Learning (IBL) with online laboratories. To support teachers and students, the project provides an IBL model (a sequence of inquiry phases) as well as the technological infrastructure to implement it: the Graasp platform and the Golabz repository. Using these technologies, teachers create In...
Conference Paper
Full-text available
The European Go-Lab project aims to promote Inquiry-based Learning (IBL) with online laboratories. To support teachers and students, the project provides an IBL model (a sequence of inquiry phases) as well as the technological infrastructure to implement it: the Graasp platform and the Golabz repository. Using these technologies, teachers create In...
Conference Paper
Full-text available
Dev Camps are events that enable participants to tackle challenges using software tools and different kinds of hardware devices in collaborative project style activities. The participants conceptualize and develop their solutions in a self-directed way, involving technical, organizational and social skills. In this sense, they are autonomous produc...
Conference Paper
Full-text available
In this paper we investigate patterns of resource usage for exam preparation based on a resource intensive blended learning course. To this end, we analyzed a blended learning, online course facilitated by Moodle. During the course, the students had to work individually and in teams. Furthermore, they were given access to a broad spectrum of learni...
Conference Paper
Full-text available
This paper aims to explore the use of common learning analytics methods, such as activity metrics and network analytics, in order to analyse the activi-ty of users and the communication flow in discussion forums that serve Massive Open Online Courses (MOOCS). We particularly seek to identify trends and patterns that may potentially be used to chara...
Conference Paper
Full-text available
This paper proposes a network analytic approach for scientific paper recommendations to researchers and academic learners. The proposed approach makes use of the similarity between citing and cited papers to eliminate irrelevant citations. This is achieved by combining both content-related and network-based similarities. The process of selecting re...
Conference Paper
Full-text available
In this paper, we present algorithms to compute the node partition of a foresighted graph layout. We aim to produce a dynamic graph drawing that allows the users to track actors in a dynamic social network, supporting a satisfying user experience along with an efficient visual search and recognition of elements. The drawings produced by the algorit...
Conference Paper
Full-text available
This work explores network analysis methods for the analysis emergent themes as well as types of users in discussion forums. The paper provides both, a description of the analysis approach and its application as a case study. To that end, keywords are extracted from forum threads and then linked the users in the forum thread resulting in a bipartit...
Conference Paper
Full-text available
In this paper, we propose a mathematical model to measure the visual stability of dynamic graph drawings. Our approach was validated through a study, which combined the use of questionnaires and an eye-tracking device. The participants of the study had to track members of a software development community over five periods of time in three different...
Conference Paper
Full-text available
There is an increasing interest in student-centered teaching methods with small group learning as an important ingredient. In this paper, we present a study in which the performance of heterogeneous and homogeneous learning groups has been compared in a technology-enhanced classroom setting in the area of STEM learning. The group formation was base...
Conference Paper
Full-text available
In this paper we explore the application of network analysis techniques in order to analyze synchronous collaborative activities of dyads. The collaborative activities are represented and visualized as networks. We argue that the characteristics and properties of the networks reflect the quality of collaboration and therefore can support the analys...
Conference Paper
Full-text available
This paper describes the analysis of collaborative mobile learning activities. We explore the use of learning analytics for the evaluation of the performance of students as individuals and the performance of teams. We argue that traditional metrics used for learning analytics can provide insight with respect to the quality of the activity and the l...
Thesis
Full-text available
Η διδακτορική διατριβή εντάσσεται στο πεδίο της Υπολογιστικά Υποστηριζόμενης Συνεργατικής Μάθησης, ΥΥΣΜ (Computer Supported Collaborative Learning, CSCL). ‘Eχει ως στόχο την ανάπτυξη και πρόταση μίας μεθόδου για την αυτοματοποιημένη ανάλυση, ταξινόμηση και αξιολόγηση της ποιότητας συνεργατικών εκπαιδευτικών δραστηριοτήτων. Αφενός βασίζεται σε ευρήμ...