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    <article-meta>
      <title-group>
        <article-title>Proceedings of the 1st International</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Learning Systems</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Technology Enhanced Learning: Technology-</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Sustainable World.</string-name>
        </contrib>
      </contrib-group>
      <pub-date>
        <year>2021</year>
      </pub-date>
      <kwd-group>
        <kwd>Enhanced Learning for a Free</kwd>
        <kwd>Safe</kwd>
        <kwd>and</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>Please refer to these proceedings as:</title>
      <p>Roland Klemke, Khaleel Asyraaf Mat Sanusi, Daniel Majonica, Anja
Richert, Valerie Varney, Tobias Keller, Jan Schneider, Daniele Di Mitri,
George-Petru Ciordas-Hertel, Fernando P. Cardenas-Hernandez,
Gianluca Romano, Milos Kravc k, Benjamin Paa en, Ralf Klamma, Michal
Slupczynski, Stefanie Klatt, Mai Geisen, Tobias Baumgartner, &amp; Nina
Riedl: Proceedings of the 1st International Workshop on Multimodal
Multimodal Immersive Learning Systems. At the Sixteenth European
Conference on Technology Enhanced Learning: Technology-Enhanced
Learning for a Free, Safe, and Sustainable WorldO. nline, Bozen-Bolzano,
Italy, September 20-24, 2021, CEUR-WS.org/Vol-2979, ISSN 1613-0073.
© 2021 for the individual papers by the papers' authors. Copying is permitted
for private and academic purposes. Re-publication of material from this volume
requires permission by the copyright owners.</p>
      <p>Address of rst editor:
Khaleel Asyraaf Mat Sanusi
Cologne Game Lab - Cologne University of Applied Sciences (TH Koln)
Schanzenstr. 28, 51063 Koln, Germany
ks@colognegamelab.de</p>
      <sec id="sec-1-1">
        <title>Preface</title>
        <p>Advances in the related elds of wearable sensors, virtual/augmented reality,
and arti cial intelligence make it possible to connect these technologies into
integrated learning solutions. The intersection of these elds of emerging
technologies is an area of many opportunities for innovative learning systems, but
likewise a eld of fuzzy expectations. With this workshop, we contribute to the
systematic organisation of the eld and to the advancement of solutions.</p>
        <p>The MILeS (Multimodal Immersive Learning Systems) 2021 workshop was
organised in the context of the German BMBF-funded research project
MILKIPSY (Multimodal Immersive Learning with Arti cial Intelligence for
Psychomotor Skills), which aims to develop AI-supported, data-intensive, multimodal,
immersive learning environments for the independent learning of psychomotor
skills. This leads to a cross-domain approach that makes it possible to record
the activities of experts in a multimodal manner and to use these recordings as
blueprints for learners. With the help of AI-based analysis, learning progress is
to be supported by automated error detection and automatically generated,
individual feedback. This creates holistic, innovative environments for cultivating
psychomotor skills, in which personalized AI support enables individual learning
processes based on complex data analyzes.</p>
        <p>With the interdisciplinary workshop, we brought together experts and
practitioners from technology-enhanced learning and educational application of
technologies to collect ideas, requirements, best practices, and example cases in the
intersection of Arti cial Intelligence, Multimodal Systems, Immersive Systems,
and their application into actual education. With this context in mind, in this
rst edition of the International Workshop on Multimodal Immersive Learning
Systems (MILeS 2021), we have compiled eight research studies that go from
early stages of development to present empirical studies where novel
experimental designs, theoretical contributions, and practical demonstrations. MILeS 2021
took place on September 21st, 2021, and was run virtually in conjunction with
the Sixteenth European Conference on Technology Enhanced Learning (EC-TEL
2021). Following are the core topics for this workshop:
{ Mobile, wearable, and pervasive technologies
{ Sensors, sensor networks, and Internet of Things
{ Augmented reality, virtual reality, and mixed reality
{ Arti cial intelligence</p>
        <p>The website of the workshop can be found here
https://milki-psy.de/milesworkshop/.</p>
      </sec>
      <sec id="sec-1-2">
        <title>Contributions</title>
        <p>A peer-reviewed process was carried out to select the workshop papers. At least
three members of the Program Committee with expertise in the area reviewed
each paper. As a result, the following eight submissions were accepted, which
discuss ideas and progress on several interesting topics:
{ Paa en et al. sketched a machine learning approach as an early signi cant
step into providing feedback to the learners in the domains of running and
human-robotic interaction. The authors evaluated how movements can be
compared to highlight the variations between the student and expert
movements.
{ Cardenas et al. proposed the existing Multimodal Learning Analytics Pipeline
to be applied in the domains of running and human-robotic interaction
through the process of data collection, storage, annotation, preparation, and
exploitation. Suitable sensors that can be potentially applied in the two
application cases are also suggested.
{ Slupczynski et al. proposed a cloud-based architecture as a basis for an
AI-based multimodal training and learning environment. The article
discusses some related work on service-based architectures for machine learning,
blockchain, and learning analytics.
{ Quin et al. introduced a prototype that utilizes holographic technologies to
foster natural interactions between teachers and students in an online
classroom setting. The paper described the system architecture of the prototype,
two di erent 3D modeling techniques, and students' experience.
{ Keller et al. presented an approach on how to develop a design framework for
an augmented reality-based training system for the acquisition of
psychomotor skills, more speci cally how to teach workers to properly collaborate
with a robot (i.e., human-robot interaction) and how to keep them motivated
along the way. This is done by exploring the results of three interdisciplinary
workshops.
{ Dikken et al. proposed a framework for a handwriting learning system that
compares a learner trace to an expert trace via dynamic time warping and
then performs an error classi cation based on the remaining deviation
compared to the expert.
{ Mat Sanusi et al. presented two student prototypes in di erent application
areas related to multimodal learning of psychomotor skills in immersive
environments. The prototypes are presented in detail and possible future
optimisation processes within the framework of MILKY-PSY are discussed in
order to ultimately determine the feasibility and advantages of psychomotor
learning with AI-based on both use cases.
{ Geisen et al. proposed a study design to enable subjects to optimize their
psychomotor training performance with real-time feedback in an immersive
training environment. In the context of this paper, a squat exercise was
selected. The authors aim to compare di erent feedback methods that can
be given in real-time and identify the most suitable feedback for motion
learning and optimization.</p>
      </sec>
      <sec id="sec-1-3">
        <title>Conclusions</title>
        <p>MILeS 2021 workshop aimed at gathering new insights around the use of
Arti cial Intelligence, Multimodal Systems, and Immersive Systems for education
and learning leveraging multimodal data sources. With the broad spectrum of
submissions received, the rst edition of the MILeS workshop showed an
interesting perspective on the eld of multimodal immersive learning and highlights
the relevance of this emerging multidisciplinary eld of research, that connects
expertise in computer science, arti cial intelligence, human-computer
interaction, sensor-based systems, educational science, technology-enhanced learning,
and game design. We expect that the rst edition of the MILeS workshop sets
the foundation for a continued and growing series of workshops and publications
in the eld.</p>
      </sec>
      <sec id="sec-1-4">
        <title>Acknowledgments</title>
        <p>The MILeS 2021 chairs would like to thank the authors for their submissions and
the EC-TEL workshop chairs for their advice and guidance during the MILeS
workshop. The MILeS chairs also served as Program Committee that reviewed
high-quality reviews for the received submissions.</p>
        <p>The following project has supported the organisation of the MILeS 2021
workshop: Multimodal Immersive Learning with Arti cial Intelligence for
Psychomotor Skills (MILKI-PSY) funded under the grant number: 16DHB4013 by
the Federal Ministry of Education and Research (BMBF).</p>
      </sec>
      <sec id="sec-1-5">
        <title>Program Committee Members</title>
      </sec>
    </sec>
    <sec id="sec-2">
      <title>Roland Klemke Cologne University of Applied Sciences (TH Koln) and Open University of the Netherlands (OUNL)</title>
    </sec>
    <sec id="sec-3">
      <title>Khaleel Asyraaf Mat Sanusi Cologne University of Applied Sciences (TH Koln)</title>
    </sec>
    <sec id="sec-4">
      <title>Daniel Majonica Cologne University of Applied Sciences (TH Koln)</title>
    </sec>
    <sec id="sec-5">
      <title>Anja Richert Cologne University of Applied Sciences (TH Koln)</title>
    </sec>
    <sec id="sec-6">
      <title>Valerie Varney Cologne University of Applied Sciences (TH Koln)</title>
    </sec>
    <sec id="sec-7">
      <title>Tobias Keller Cologne University of Applied Sciences (TH Koln)</title>
    </sec>
    <sec id="sec-8">
      <title>Jan Schneider Leibniz Institute for Human Development and Educational Information (DIPF)</title>
    </sec>
    <sec id="sec-9">
      <title>Daniele Di Mitri Leibniz Institute for Human Development and Educational Information (DIPF)</title>
    </sec>
    <sec id="sec-10">
      <title>George-Petru Ciordas-Hertel Leibniz Institute for Human Development and Educational Information (DIPF)</title>
    </sec>
    <sec id="sec-11">
      <title>Fernando P. Cardenas-Hernandez Leibniz Institute for Human Development and Educational Information (DIPF)</title>
    </sec>
    <sec id="sec-12">
      <title>Gianluca Romano Leibniz Institute for Human Development and Educational Information (DIPF)</title>
    </sec>
    <sec id="sec-13">
      <title>Milos Kravc k German Research Center for Arti cial Intelligence (DFKI)</title>
    </sec>
    <sec id="sec-14">
      <title>Benjamin Paa en</title>
      <p>German Research Center for Arti cial Intelligence (DFKI)</p>
    </sec>
    <sec id="sec-15">
      <title>Ralf Klamma RWTH Aachen</title>
    </sec>
    <sec id="sec-16">
      <title>Michal Slupczynski RWTH Aachen</title>
    </sec>
    <sec id="sec-17">
      <title>Stefanie Klatt German Sport University Cologne (DSHS)</title>
    </sec>
    <sec id="sec-18">
      <title>Mai Geisen German Sport University Cologne (DSHS)</title>
    </sec>
    <sec id="sec-19">
      <title>Tobias Baumgartner German Sport University Cologne (DSHS)</title>
    </sec>
    <sec id="sec-20">
      <title>Nina Riedl German Sport University Cologne (DSHS)</title>
      <sec id="sec-20-1">
        <title>Teaching psychomotor skills using machine learning for error detection</title>
        <p>Benjamin Paa en, Milos Kravc k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8</p>
      </sec>
      <sec id="sec-20-2">
        <title>Multimodal Immersive Learning with Arti cial Intelligence for Robot and Running application cases</title>
        <p>Fernando P. Cardenas-Hernandez, Gianluca Romano, Hendrik Drachsler . 15</p>
      </sec>
      <sec id="sec-20-3">
        <title>MILKI-PSY Cloud: Facilitating multimodal learning analytics by explainable AI and blockchain</title>
        <p>Michal Slupczynski, Ralf Klamma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22</p>
      </sec>
      <sec id="sec-20-4">
        <title>HoloLearn: Using holograms to support naturalistic interaction in virtual classrooms</title>
        <p>Tristan Quin, Bibeg Limbu, Michel Beerens, Marcus Specht . . . . . . . . . . . . . . . 29</p>
      </sec>
      <sec id="sec-20-5">
        <title>WIP: Development of a design framework for the provision of multimodal content in an AR-based training system for the acquisition of psychomotor skills</title>
        <p>Tobias Keller, Valerie Varney, Anja Richert . . . . . . . . . . . . . . . . . . . . . . . . . . . 37</p>
      </sec>
      <sec id="sec-20-6">
        <title>Expert Distribution Similarity Model: Feedback methodology for nonimitation based handwriting practice</title>
        <p>Olivier Dikken, Bibeg Limbu, Marcus Specht . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46</p>
      </sec>
      <sec id="sec-20-7">
        <title>Immersive training environments for psychomotor skills development:</title>
      </sec>
      <sec id="sec-20-8">
        <title>A student driven prototype development approach</title>
        <p>Khaleel Asyraaf Mat Sanusi, Daniel Majonica, Lukas Kunz, Roland Klemke 53</p>
      </sec>
      <sec id="sec-20-9">
        <title>Real-time visual feedback on sports performance in an immersive training environment: Presentation of a study concept</title>
        <p>Mai Geisen, Tobias Baumgartner, Nina Riedl, Stefanie Klatt . . . . . . . . . . . . . 59</p>
      </sec>
    </sec>
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