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<!DOCTYPE HTML>
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<html>
<head>
<title> Personalisation in Cyber-Physical-Social Systems </a> </title>
<meta charset="utf-8" />
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<ul>
<li><a href="#intro">Welcome</a></li>
<li><a href="#Abstract">Abstract</a></li>
<li><a href="#one">Chapter 1</a></li>
<li><a href="#two">Chapter 2</a></li>
<li><a href="#three">Chapter 3</a></li>
<li><a href="#four">Chapter 4</a></li>
<li><a href="#five">Thesis Defence</a></li>
<li><a href="#six">Get in touch</a></li>
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<section id="intro" class="wrapper style1 fullscreen fade-up">
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<h2>Personalisation in Cyber-Physical-Social Systems</h2>
<p> Hello there, thanks for stopping by! </p>
<p> This web page is dedicated for a concise summary of my PhD thesis, associated links and resources.<br>
<br>
The thesis is done in collaboration with the <a href="https://www.list.lu/"target="_blank"> Luxembourg Institute of Science and Technology (LIST)</a> and
(<a href="http://doctorat.univ-lorraine.fr/en/doctoral-schools/iaem"target="_blank">IAEM Doctoral School,</a> under
the <a href="http://www.cran.univ-lorraine.fr/index.php?codelangue=EN"target="_blank"> Research Center for Automatic Control (CRAN)</a>,
a joint research unit between the <a href="https://welcome.univ-lorraine.fr/en"target="_blank"> University of Lorraine</a>
and the <a href="https://www.cnrs.fr/"target="_blank"> French National Scientific Research Center (CNRS)</a> -
<a href="https://ins2i.cnrs.fr/en/institut-ins2i"target="_blank"> Institute for Information Sciences and Technologies (INS2I)</a>.</p>
<ul class="actions">
<li><a href="#Abstract" class="button scrolly">Learn more</a></li>
</ul>
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</section>
<!-- Abstract -->
<section id="Abstract" class="wrapper style2-alt fullscreen fade-up">
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<h2>Abstract</h2>
<p align=" justify"> The notion of Cyber-Physical-Social system (CPSS) is an emerging concept developed as a
result of the need to understand the impact of Cyber-Physical Systems (CPS) on humans and
vice versa. The concept of CPSS has been around for over a decade now, and it has gained
increasing attention over the past few years. Nevertheless, its conceptualisation has always been
use-case dependent and there is no generic view as most works focus on specific domains of
application. Despite the notion that CPSS is still in its infancy, the evolution to incorporate
human aspects in the CPS research has unlocked many research challenges. CPSS environments
are often regarded as physical and virtual places of interaction that humans and sensor-enabled
smart devices cohabitate. Thus, the social aspect is tightly coined with the presence of a human
in the vicinity of the so-called smart devices either serving as a source of information or consuming
a service. The prominent aim of this paradigm shift is to ultimately ensure a seamless human-machine interaction experience. Hence, the newly introduced social part largely resides in how
machines perceive and respond to humans’ interaction responses. This constitutes complex
emotional, cognitive and behavioural facets. However, none of the existing works provides a
comprehensive representation of such aspects.</p>
<p align ="justify"> It is also evident that the evolution towards
a more and more pervasiveness of technology is gradually increasing the complexity of CPSS
environments. Especially since the rationale behind the CPSS paradigm is to bring humans to
the centre of the interaction experience, system designs should carefully address various aspects
of social dynamics. Nevertheless, ensuring a seamless experience in such a context is not a
trivial task. Particularly because it is often a subjective experience that is largely influenced
by individual preferences, interests, needs and capabilities varying from one person to another.
This plays a crucial role in determining users’ quality of experience. Additionally, the actions
and behaviours of people within a CPSS are also reflections of their unique personalities shaped
over time through personal experiences, knowledge, and different environmental factors that are
not yet fully understood. Therefore, recognising personal preferences, interests, limitations and
opportunities of individuals become one of the necessities to ensure a seamless interaction within
a CPSS. This positions the notion of personalisation at the heart of the CPSS paradigm. In this
context the objective of the thesis is primarily to provide a theoretical contribution in formalising
the concept of CPSS, thereby establishing a domain-independent understanding of the paradigm.
Subsequently, to propose a novel personalisation approach in the context of CPSS by taking into
account the overall systemic complexities which is not the case of current approaches. Finally, to
demonstrate the proposed approach by designing personalisation algorithms for selected case studies and experimentally validate the feasibility. </p>
<p> Below you can find a summarized introduction for each of the thesis chapters.</p>
<ul class="actions">
<li><a href="#one" class="button scrolly">Learn more</a></li>
</ul>
</div>
</section>
<!-- One -->
<section id="one" class="wrapper style2 spotlights">
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<h2>Chapter 1: Literature Survey</h2>
<p align ="justify">In this chapter, we begin with a detailed overview of Cyber-Physical-Social System (CPSS)
through a Systematic Literature Review (SLR). The SLR explores the different definitions of
CPSS, its application areas and how the social aspect is conceptualised in literature. This will
lead us to discuss the open challenges and opportunities in the CPSS paradigm, particularly in
terms of integrating the social aspect with the existing notion of Cyber-Physical System (CPS).
Following this, we justify the need for a systemic formalisation of the CPSS paradigm as a central
unifying criterion. Subsequently, we discuss the role of personality as one of the social dimensions
and its enormous impact on the interaction experience of users in a CPSS. Hence, we position
the contribution of the thesis based on these findings. </p>
<ul class="actions">
<li><a href="#two" class="button scrolly">Learn more</a></li>
</ul>
</div>
</section>
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<h2>Chapter 2</h2>
<p align ="justify">In this chapter, we present the main contributions of this thesis. Primarily, we propose a formalisation to the notion of CPSS which captures the existing conceptualisation in literature and
projects a view for the future developments of the paradigm. The formalisation mainly constitutes a generic definition of CPSS and a meta-model proposal. This offers a domain independent
understanding of the concept. Secondly, we introduce the concept of personalisation to the domain of CPSS as one feasible solution to support the integration of social aspects in the CPSS
paradigm. Particularly, we proposed a novel problem formulation strategy that can be used to
implement personalisation in different domains of CPSS. <br>
<div class="features"> </div>
The following papers can be interesting to read:
</p>
<ul style="list-style-type:circle" class="actions">
<li>Systemic formalisation of Cyber-Physical-Social System (CPSS): A systematic literature review.<br>
<a href="https://www.sciencedirect.com/science/article/abs/pii/S0166361521000658" target="_blank" class="button">
Read the paper</a></li>
</ul>
<ul style="list-style-type:circle" class="actions">
<li> A meta-model of Cyber-Physical-Social System: The cpss paradigm to support human-machine collaboration in industry 4.0.<br>
<a href="https://link.springer.com/chapter/10.1007/978-3-030-28464-0_2" target="_blank" class="button">
Read the paper</a></li>
</ul>
<ul style="list-style-type:circle" class="actions">
<li> A new Paradigm and Meta-Model for Cyber-Physical-Social Systems. <br>
<a href="https://www.sciencedirect.com/science/article/pii/S2405896320336065" target="_blank" class="button">
Read the paper</a></li>
</ul>
<ul style="list-style-type:circle" class="actions">
<li> Introduction to Personalisation in Cyber-Physical-Social Systems. <br>
<a href="https://link.springer.com/chapter/10.1007/978-3-030-11683-5_3" target="_blank" class="button">
Read the paper</a></li>
</ul>
</div>
</section>
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<section id="three" class="wrapper style2 fade-up">
<div class="inner">
<h2>Chapter 3: Case Studies</h2>
<p align ="justify">In this chapter, we present two independent case studies, which instantiate the CPSS meta-model and
the CPSS-specific personalisation method proposed in chapter 2. These case studies
illustrate the domain-independent characteristic of our approach. The first case study concerns
personalised recommendation and guidance in smart exhibition areas, whereas the second one
is about adaptation of collaborative robots (Cobots) in a smart workshop setting. Framing
their respective scenarios on the basis of CPSS, each of the case studies resort to different
implementation techniques to fulfil their personalisation objective, fitting to their specific context.
After presenting the approaches we finalise each case study by discussing experimental results.
Finally we close the chapter by summarising the takeaways from the two case studies.
<div class="features"> </div>
The following papers can be interesting to read:
</p>
<ul style="list-style-type:circle" class="actions">
<li> Personalisation in Cyber-Physical-Social Systems: A Multi-stakeholder aware Recommendation and Guidance.<br>
<a href="https://dl.acm.org/doi/abs/10.1145/3450613.3456847" target="_blank" class="button">
Read the paper</a> <a href="https://github.com/Bekyilma/Multi-Stakeholder_Recommendation" target="_blank" class="button">
Code</a></li>
</ul>
<ul style="list-style-type:circle" class="actions">
<li> Personalised Visual Art Recommendation by Learning Latent Semantic Representations. <br>
<a href="https://ieeexplore.ieee.org/abstract/document/9248448" target="_blank" class="button">
Read the paper</a> <a href="https://github.com/Bekyilma/Personalized-Visual-Art-Recommendation" target="_blank" class="button">
Code</a></li>
</ul>
<ul style="list-style-type:circle" class="actions">
<li> Towards a Personalisation Framework for Cyber-Physical-Social System (CPSS). <br>
<a href="https://arxiv.org/abs/2103.15781" target="_blank" class="button">
Read the paper</a></li>
</ul>
<ul style="list-style-type:circle" class="actions">
<li>Personalisation in Cyber-Physical-Social System (CPSS): The Case of Recommendations in Cultural Heritage Spaces.<br>
<a href="https://ieeexplore.ieee.org/abstract/document/8501890" target="_blank" class="button">
Read the paper</a></li>
</ul>
</div>
</section>
<!-- Four -->
<section id="four" class="wrapper style1 spotlights">
<div class="inner">
<h2>Chapter 4: Conclusion and Future Directions</h2>
<p align ="justify">
In this thesis, we proposed a systemic formalisation of the Cyber-Physical-Social System (CPSS)
paradigm and a personalisation approach to contribute to the integration of social aspects in
CPSS. In this chapter, we revisit the key research problems, the state-of-the-art limitations as well
as an overview of our contributions. Finally, we provide a concluding discussion outlining the remaining
open challenges and perspectives on potential direction for future work.
</p>
<ul class="actions">
<li><a href="https://drive.google.com/file/d/1_ZS5SsIqHWiDfq32eQkcj4bFFK4nZ8C7/view?usp=sharing" target="_blank" class="button">Read the full Thesis</a>
<a href="https://hal.univ-lorraine.fr/tel-03367875" target="_blank" class="button">
Published version</a></li>
</ul>
</div>
</section>
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<h2>Thesis Defence</h2>
Watch the thesis defence <br>
<br>
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<img src="images/cover.png" width="624" height="352" style="cursor:pointer" />
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</div>
</div>
</section>
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<h2>Get in touch</h2>
<p><a href="https://bekyilma.github.io/" target="_blank" >If you have questions, comments or interested to collaborate, please feel free to reach out.</a></p>
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<h3>Email</h3>
<a>bereket.yilma@uni.lu</a> <br>
<a>byilmalux@gmail.com</a>
</li>
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<h3>Phone</h3>
<span>(+352) 275 888 2887</span>
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<h3>Address</h3>
<span>MAISON DE L'INNOVATION<br />
5, AVENUE DES HAUTS-FOURNEAUX<br />
L-4362 ESCH-SUR-ALZETTE<br />
LUXEMBOURG</span>
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