Christian Guetl

Graz University of Technology | TU Graz · Institute of Interactive Systems and Data Science

Comments in source code have been perceived to enhance understandability, readability, and knowledge retention by professional programmers and educators alike. Programming novices in introductory programming courses are therefore taught to use comments to highlight specific code sections, clarify complex algorithms, and organize source code structu...

The number of scientific publications is increasing at a rate that makes them progressively more impossible to keep up with. Consequently, automatic creation of summaries from a collection of articles could significantly speed up the selection of publications of interest. This paper focuses on the use case of ultra-short summaries to be used for th...

In introductory programming courses (IPCs), students encounter various difficulties that are related to low achievement and high dropout and failure rates. Technology-rich approaches that promote self-directed learning while facilitating competency development and knowledge construction through social collaboration may offer advantages in this cont...

Systematic reviews provide robust evidence but require significant human labor, a challenge that can be mitigated with digital tools. This paper focuses on machine learning (ML) support for the title and abstract screening phase, the most time-intensive aspect of the systematic review process. The existing literature was systematically reviewed and...

In computer science education, various teaching and learning methods exist to teach novice students programming. However, students’ source code primarily serves as the basis for grading. Usually, it is not considered to identify key concepts and skills required to complete the course and understand the student’s learning process. This paper present...

In computer science education, various teaching and learning methods exist to teach novice students programming. However, students' source code primarily serves as the basis for grading. Usually, it is not considered to identify key concepts and skills required to complete the course and understand the student's learning process. This paper present...

Immersive learning research is a field of study that emphasizes diversity of scholarship and subject areas. This diversity presents a challenge for understanding the breadth and depth of the field of immersive learning, a challenge that led to the Immersive Learning Research Network’s call for the community of immersive learning researchers to deve...

The research areas of the Immersive Learning community cover many different interests and perspectives on teaching and learning with immersive technologies. Based on existing efforts to map the field of research, we gathered 35 participants at the iLRN 2022 conference during an open hybrid workshop. These volunteers formed expert groups focusing on...

AI4Reporters is a project designed to produce automated electronic tip sheets for news reporters covering the statehouses (state level legislatures) in the United States. The project aims to capture the most important information that occurred in a bill discussion to allow reporters to quickly decide if they want to pursue a story on the subject. I...

Web search is a crucial technology for the digital economy. Dominated by a few gatekeepers focused on commercial success, however, web publishers have to optimize their content for these gatekeepers, resulting in a closed ecosystem of search engines as well as the risk of publishers sacrificing quality. To encourage an open search ecosystem and off...

We design and evaluate a mixed reality real-time communication system for remote assistance during CPR emergencies. Our system allows an expert to guide a first responder, remotely, on how to give first aid. RGBD cameras capture a volumetric view of the local scene including the patient, the first responder, and the environment. The volumetric capt...

The course Introduction to Programming is one of the first and fundamental courses within any computer science-related study program. Traditionally, such introductory courses are characterized by a large group of students, whereas this group has a heterogeneous prior knowledge of the topic. These courses are usually taught in a traditional setting...

Representing and visualizing data as networks is a widely spread approach to analyzing highly connected data in domains such as medicine, social sciences, and information retrieval. Investigating data as networks requires pre-processing, retrieval or filtering, conversion of data into networks, and application of various network analysis approaches...

This paper presents a training course that aims to develop the competence to identify disinformation and fake news. Disinformation constitutes a huge problem in our world of digital media and digital communication. In particular, people with little understanding of problematic online content tend to share and distribute false information. The train...

Empathy refers to what people experience and feel. Experts believed that empathy is an emotional intelligence skill that can be trained and taught. Therefore, it is very important to explore ways to experience and teach emotional empathy. Empathy experiences can be stimulated by reading fiction and other narratives, storytelling, watching movies, a...

The objective of this work was to support the sustainable deployment of immersive learning environments, which face varied obstacles, including the lack of support infrastructures for active learning pedagogies. Sustainability from the perspective of the integration of these environments in educational practice entails situational awareness, worklo...

Oversharing exposes risks such as improved targeted advertising and sensitive information leakage. Requiring only the bare minimum of data diminishes these risk factors while simultaneously increasing the privacy of each individual user. Using anonymized data for finding communities enables new possibilities for large organizations under strong dat...

Different definitions, structures, guidelines, and architec-tures for ML pipelines exist. However, most of these guidelines do not require a level of privacy and anonymization for sensitive data and also do not account for reproducibility. To address the mentioned problems of providing a platform for open sourcing, deployment, and evaluation of rep...

Massive open online courses (MOOCs) are an indispensable component in university education today. In large introductory courses especially, MOOCs can promote the efficiency of online teaching tremendously, since a large and heterogeneous group of students can be prepared for further courses and learn self-paced and self-directed. However, MOOCs are...

The course Introduction to Programming is one of the first and fundamental courses within any computer science-related study program. Traditionally, such introductory courses are characterized by a large group of students, whereas this group has a heterogeneous prior knowledge of the topic. These courses are usually taught in a traditional setting...

We present a volumetric communication system that is designed for remote assistance of procedural tasks. The system allows a remote expert to visually guide a local operator. The two parties share a view that is spatially identical, but for the local operator it is of the object on which they operate, while for the remote expert, the object is pres...

We propose a real-time system for synthesizing gestures directly from speech. Our data-driven approach is based on Generative Adversarial Neural Networks to model the speech-gesture relationship. We utilize the large amount of speaker video data available online to train our 3D gesture model. Our model generates speaker-specific gestures by taking...

Kommerzielle digitale Spiele dienen in erster Linie der Unterhaltung. Allerdings haben sie auch das Potenzial, einen Beitrag zur Bildung und zum Kompetenzerwerb in zahlreichen Domänen zu leisten, sowohl im Rahmen des Schulunterrichts und von Arbeitsgemeinschaften als auch beim normalen Spielen in der Freizeit. Insofern richtet sich dieses Buch an e...

Learning Analytics are a valuable way for teachers and educators to support their student’s learning progress. Data can be used to identify issues, provide personalized learning, and improve the overall quality of learning. There are diverse types of educational data which are available for instance log data, given answers, or source code. Just as...

Digital skills are essential in a broad range of today’s life and properly dealing with social media is one important and challenging area. Thus, this research study focuses on investigating and devising a method to assess digital skills in the context of social media applications. The study is executed online via the custom-made CoDiS Survey tool...

In today’s world, there is a growing demand for professionals with skills in Science, Technology, Engineering and Mathematics. At the same time, teaching STEM subjects can be a challenging task, as students struggle to understand abstract concepts and complex phenomena in lectures and textbooks. This has given rise to a new approach to learning cal...

E-learning systems present an opportunity for both students and the field of education that has been steadily increasing in importance, especially over the past few years. This paper examines an intra-university e-learning course built on the principle of self-regulated learning, with the goal of finding behavioral patterns in the way learners navi...

Privacy is of worldwide concern regarding activities and processes that include sensitive data. For this reason, many countries and territories have been recently approving regulations controlling the extent to which organizations may exploit data provided by people. Artificial intelligence areas, such as machine learning and natural language proce...

Algorithmic journalism refers to automatic AI-constructed news stories. There have been successful commercial implementations for news stories in sports, weather, financial reporting and similar domains with highly structured, well defined tabular data sources. Other domains such as local reporting have not seen adoption of algorithmic journalism,...

Privacy is of worldwide concern regarding activities and processes that include sensitive data. For this reason, many countries and territories have been recently approving regulations controlling the extent to which organizations may exploit data provided by people. Artificial intelligence areas, such as machine learning and natural language proce...

Access to large amounts of information has resulted in users experiencing the effects of information overload, which is the state where users are presented with a much higher amount of information than they can process at a given time. Information overload is also observed in Social Media Platforms (SMP), which has resulted in the invention of miti...

Learning Analytics are a valuable way for teachers and educators to support their student's learning progress. Data can be used to identify issues, provide personalized learning, and improve the overall quality of learning. There are diverse types of educational data which are available for instance log data, given answers, or source code. Just as...

In real life, people communicate using both speech and non-verbal signals such as gestures, face expression or body pose. Non-verbal signals impact the meaning of the spoken utterance in an abundance of ways. An absence of non-verbal signals impoverishes the process of communication. Yet, when users are represented as avatars, it is difficult to tr...

Questionnaires are important instruments to gather information from people in a wide range of application scenarios, such as analyzing the responses for evaluations, collecting preferences, or retrieving self-estimations in learning settings. However, based on the setting and design of a questionnaire participating can be boring or frustrating and...

The interdisciplinary field of immersive learning research is scattered. Combining efforts for better exploration of this field from the different disciplines requires researchers to communicate and coordinate effectively. We call upon the community of immersive learning researchers for planting the Knowledge Tree of Immersive Learning Research, a...

In real life, people communicate using both speech and non-verbal signals such as gestures, face expression or body pose. Non-verbal signals impact the meaning of the spoken utterance in an abundance of ways. An absence of non-verbal signals impoverishes the process of communication. Yet, when users are represented as avatars, it is difficult to tr...

As many concepts in programming are difficult for novices to learn, it can be frustrating for them to stay motivated. For this purpose, alternative approaches like game-based learning can help increase their motivation. sCool is a serious game that supports learning computational skills through conceptual aspects and practicing programming, but is...

While on the labour market there is a high demand for employees educated and skilled in the field of natural sciences, engineering and information technologies, a lack of interest in these fields of expertise can be identified in young people. The aim of our research is to leverage a scientifically founded and empirically validated approach and con...

The assessment of the current situation of digital skills and competencies in a given group is a fundamental issue nowadays. Hence, the purpose of the research study is to address this issue. The research methodology is quantitative, including also a case study experiment and pre and post-questionnaires. To obtain and make use of digital resources,...

To help students better understand concepts in an information search and retrieval (ISR) class using the Motivational Active Learning (MAL) pedagogical approach, a tool called Infret was developed. It serves as the interactive experimentation and visualization component of MAL. The design of Infret is based on feedback collected from a testing sess...

Playing provides many opportunities for learning as learners can take charge and make choices about their learning. However, since all play is not learning, it makes sense to combine learning and playing activities. In the area of teamwork training, despite the existence of a number of learning and leisure games, there is still room for a holistic...

Despite several differences in contemporary learning theories and approaches to education, there is strong agreement that scaffolding and feedback are essential to foster successful learning processes. Technological advances have enabled the development of smart learning environments, e.g., intelligent tutoring systems, which provide authoring feat...

Skills in science, technology, engineering, and mathematics (STEM) are increasingly in demand. Theoretical knowledge and formulas alone are frequently not sufficient to understand complex phenomena. Simulations are a valuable tool to support the conceptual understanding by visualizing invisible processes. The constant interaction with the learning...

The assessment of digital skills and competencies required to make use of digital resources poses several challenges. In order to evaluate the current situation and trends, this research study initially presents a review of history, existing trends and digital competence frameworks, learning and teaching methodologies for digital literacy and provi...

Interactive and digital learning experiences are becoming increasingly important and used to improve various learning scenarios. In physics education, the use of digital simulations or virtual laboratories to support the learners' understanding is already part of most classrooms. Virtual reality experiences can be used to create even more exciting,...

This paper presents the perspectives of the immersive learning research network community on the relevance of various challenges to the adoption of immersive learning technology, along three dimensions: access, content production, and deployment. Using a previously validated questionnaire, we surveyed this community of 622 researchers and practitio...

Legislative proceedings present a rich source of multidimensional information that is crucial to citizens and journalists in a democratic system. At present, no fully automated solution exists that is capable of capturing all the necessary information during such proceedings. Even if professional-quality automated transcriptions existed, other task...

This article focuses on how video games may trigger empathy. On the one hand, globalization and our fast-changing, globalized world have resulted in an empathy deficit, a situation that calls desperately for a new approach to tackle the empathy issue. On the other hand, recent statistical data has shown that players in some countries today spend on...

To help students better understand abstract information retrieval (IR) concepts and encourage students to explore new concepts, an existing Web-based IR tool called Infret was enhanced. Based on the feedback from a previous evaluation, the need for additional IR concepts and user tracking functionality was identified. The expanded Infret version wa...

The game sCool [10] is a game-based tool to support learners in STEM education. It is a multi-platform mobile learning game designed for school children supporting a flexible and easy integration of various subjects and different courses. Based on the tool sCool, we present a first integrated course, which encourages children to learn computational...

Playing provides many opportunities for learning as learners can take charge and make choices about their learning. However, since all play is not learning, it makes sense to combine learning and playing activities. In the area of teamwork training, despite the existence of a number of learning and leisure games, there is still room for a holistic...

This volume constitutes the refereed proceedings of the 5th International Conference of the Immersive Learning Network, iLRN 2019, held in London, UK, in June 2019. The 18 revised full papers and presented in this volume were carefully reviewed and selected from 60 submissions. The papers are organized in topical sections on science, technology, e...

In STEM fields, the primary goal is not to teach students how to recite formulas but to support the students’ understanding of underlying principles and phenomena. Students of fields such as physics should be engaged with hands-on experiments and interactive visualizations. In this work, we discuss how modern e-learning tools can support hands-on l...

In this paper we present a case study of the mobile learning game sCool [1]. Based on previous work presented Steinmaurer et. al. (2018) [2] we expand-ed our study by a second experiment and additional aspects. sCool is a mul-ti-platform game that should encourage children learning computational thinking and coding in Python. The learning content i...

Dear [Name], the deadline for the submission of the structured abstracts (2 – 4 pages) is on 22 February 2019. The ICBL is a biennially conference of the International Association of Online Engineering (IAOE) together with the Global Online Laboratory Consortium (GOLC). Blended learning continues to be one of the most promising approaches in the ar...