Publications de Andrii Vozniuk

A Blueprint for a Blockchain-Based Architecture to Power a Distributed Network of Tamper-Evident Learning Trace Repositories

Denis Gillet, Andrii Vozniuk, Maria Jesus Rodriguez Triana, Juan Carlos Farah

The need to ensure privacy and data protection in educational contexts is driving a shift towards new ways of securing and managing learning records. Although there are platforms available to store educational activity traces outside of a central repositor ...

2018

Blending Digital and Face-to-Face Interaction Using a Co -Located Social MediaApp in Class

Benoît Garbinato, Denis Gillet, Andrii Vozniuk, Sten Govaerts, Adrian Christian Holzer

Improving face-to-face (f2f) interaction in large classrooms is a challenging task as student participation can be hard to initiate. Thanks to the wide adoption of personal mobile devices, it is possible to blend digital and face-to-face interaction and in ...

IEEE COMPUTER SOC2018

GraaspBox: Enabling Mobile Knowledge Delivery into Underconnected Environments

Denis Gillet, Andrii Vozniuk, Adrian Christian Holzer

Interacting with knowledge in a timely fashion is critical for the success of humanitarian missions. At the same time, the places where humanitarian action is needed are often those where Internet connection is poor or not available at all, making digital ...

ACM2017

Beyond ePortfolios: Creating, Exploiting, and Archiving Activity Traces, Learning Outcomes, and Learning Analytics as Personal Shareable Online Spaces

Denis Gillet, Andrii Vozniuk, Adrian Christian Holzer, Maria Jesus Rodriguez Triana, Juan Carlos Farah

The concept of an ePortfolio was introduced in 1999 as an electronic learning record and further developed to overcome the limitation of learning management systems lacking persistent storage for learning artifacts. Nowadays, educational platforms have evo ...

IEEE2017

Monitoring, Awareness and Reflection in Blended Technology Enhanced Learning: a Systematic Review

Denis Gillet, Andrii Vozniuk, Mina Shirvani Boroujeni, Adrian Christian Holzer, Beat Adrian Schwendimann, Luis Pablo Prieto Santos, Maria Jesus Rodriguez Triana

Education is experiencing a paradigm shift towards blended learning models in technology-enhanced learning (TEL). Despite the potential benefits of blended learning, it also entails additional complexity in terms of monitoring, awareness and reflection, as ...

2017

Enhancing Social Media Platforms for Educational and Humanitarian Knowledge Sharing : Analytics, Privacy, Discovery, and Delivery Aspects

Andrii Vozniuk

Social media (SM) platforms have demonstrated their ability to facilitate knowledge sharing on the global scale. They are increasingly often employed in educational and humanitarian domains where, despite their general benefits, they expose challenges pecu ...

EPFL2017

Perceiving learning at a glance: A systematic literature review of learning dashboard research

Denis Gillet, Pierre Dillenbourg, Andrii Vozniuk, Mina Shirvani Boroujeni, Adrian Christian Holzer, Beat Adrian Schwendimann, Maria Jesus Rodriguez Triana

This paper presents a systematic literature review of the state-of-the-art of research on learning dashboards in the fields of Learning Analytics and Educational Data Mining. Research on learning dashboards aims to identify what data is meaningful to diffe ...

Institute of Electrical and Electronics Engineers2017

Understanding learning at a glance: An overview of learning dashboard studies

Denis Gillet, Pierre Dillenbourg, Andrii Vozniuk, Mina Shirvani Boroujeni, Adrian Christian Holzer, Beat Adrian Schwendimann, Luis Pablo Prieto Santos, Maria Jesus Rodriguez Triana

Research on learning dashboards aims to identify what data is meaningful to different stakeholders in education, and how data can be presented to support sense-making processes. This paper summarizes the main outcomes of a systematic literature review on l ...

Assoc Computing Machinery2016

Peer Assessment Dataset

Denis Gillet, Andrii Vozniuk, Adrian Christian Holzer

Peer assessment is seen as a powerful supporting tool to achieve scalability in the evaluation of complex assignments in large courses, possibly virtual ones, as in the context of massive open online courses (MOOCs). However, the adoption of peer assessmen ...

2016

Agile, Versatile, and Comprehensive Social Media Platform for Creating, Sharing, Exploiting, and Archiving Personal Learning Spaces, Artifacts, and Traces

Denis Gillet, Andrii Vozniuk, Adrian Christian Holzer, Maria Jesus Rodriguez Triana

Nowadays, students bring their full ecosystem of social media platforms and their own devices to school, while teachers benefit from and contribute to local or global repositories of educational resources. As a consequence, educational institutions have to ...

2016

Rule of Thumb – Effect of Social Button Icons on Interaction

Denis Gillet, Samuel Bendahan, Andrii Vozniuk, Adrian Christian Holzer

Social buttons are now widespread in social media apps. They are used to assign weight to user content and trigger user engagement. They come in different shapes (e.g., thumb in Facebook, arrows in Reddit or StackOverflow, plus one in Google+) but very lit ...

2016

Combining Content Analytics and Activity Tracking to Identify User Interests and Enable Knowledge Discovery

Denis Gillet, Andrii Vozniuk, Adrian Christian Holzer, Maria Jesus Rodriguez Triana

Finding relevant content is one of the core activities of users interacting with a content repository, be it knowledge workers using an organizational knowledge management system at a workplace or self-regulated learners collaborating in a learning environ ...

2016

Uncomfortable yet Fun Messaging with Chachachat

Denis Gillet, Angelo Benedetto, Andrii Vozniuk, Sten Govaerts, Adrian Christian Holzer

In order to improve user experience and to foster novel ideas, some voices in the HCI community have argued to break fundamental design rules, an approach well known in the art community. In this paper, we use this radical approach to design a playful mobi ...

2015

Graspeo: a Social Media Platform for Knowledge Management in NGOs

Denis Gillet, Andrii Vozniuk, Sten Govaerts, Adrian Christian Holzer

Timely access to critical information is crucial for any organization operating in situations of emergency. Deploying an adequate information system tailored to specific organizational needs and matched to the organizational structure is essential. To unde ...

2015

Orchestrating Inquiry-Based Learning Spaces: an Analysis of Teacher Needs

Denis Gillet, Andrii Vozniuk, Adrian Christian Holzer, Maria Jesus Rodriguez Triana

The European Go-Lab project offers Inquiry Learning Spaces (ILSs) as open educational resources to support Inquiry-based Learning (IBL). To successfully exploit ILSs and implement IBL, proper support for orchestration is needed. Researchers have highlighte ...

2015

Contextual Learning Analytics Apps to Create Awareness in Blended Inquiry Learning

Denis Gillet, David Sandoz, Andrii Vozniuk, Sten Govaerts, Adrian Christian Holzer, Maria Jesus Rodriguez Triana

Blended inquiry learning, where students for example use online labs to perform experiments, is considered a promising approach to increase the skills and interest of students in science, technology, engineering, and mathematics domains. For teachers to pr ...

2015

Peer Assessment Based on Ratings in a Social Media Course

Denis Gillet, Andrii Vozniuk, Adrian Christian Holzer

Peer assessment is seen as a powerful supporting tool to achieve scalability in the evaluation of complex assignments in large courses, possibly virtual ones, as in the context of massive open online courses (MOOCs). However, the adoption of peer assessmen ...

2014

AngeLA: Putting the Teacher in Control of Student Privacy in the Online Classroom

Denis Gillet, Andrii Vozniuk, Sten Govaerts

Learning analytics (LA) is often considered as a means to improve learning and learning environments by measuring student behaviour, analysing the tracked data and acting upon the results. The use of LA tools implies recording and processing of student act ...

2014

Rich Open Educational Resources for Personal and Inquiry Learning. Agile Creation, Sharing and Reuse in Educational Social Media Platforms

Denis Gillet, Christophe Salzmann, Andrii Vozniuk, Wissam Halimi, Sten Govaerts, Adrian Christian Holzer, Maria Jesus Rodriguez Triana

Open Educational Resources (OERs) are freely accessible, openly licensed multimedia documents or interactive tools that can be typically integrated in Learning Management Systems to support courses. With social media platforms becoming the central piece of ...

2014

SpeakUp in the Classroom: Anonymous Temporary Social Media for Better Interactions

Denis Gillet, Andrii Vozniuk, Sten Govaerts, Adrian Christian Holzer

Student participation in class is an important aspect of the learning experience, and can provide valuable feedback for teachers. However, getting students to interact in large classrooms is challenging. This paper presents SpeakUp, a mobile temporary soci ...

2014