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Sepideh Alassi committed Jan 19, 2024
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<div class="full-size scroll-y-only">

<div class="sidebar">

<button mat-stroked-button class="previousBtn" (click)="location.back()">
<mat-icon>arrow_back</mat-icon>Previous
</button>

</div>

<div class="main-content">

<section>
<h1 style="font-size:50px; font-family: 'Times New Roman'">Bernoulli Euler Digital</h1>
<p>
The Bernoulli-Euler Digital represents a notable expansion of the <a target="_blank" href="https://app.dasch.swiss/project/yTerZGyxjZVqFMNNKXCDPF">Bernoulli-Euler Online (BEOL)</a> project.
This platform serves as a dedicated virtual research environment, focusing on exploring the influence of the
mathematicians of Basel on early modern mathematics and science. These mathematicians are members of the
Bernoulli dynasty, Leonhard Euler and his son Johann Albrecht Euler, and other prominent mathematicians such
as Jacob Hermann (Jacob Bernoulli's disciple) and Nicolaus Fuss.<br/>
</p>
<br/>
<h2 style="font-size:35px; font-family: 'Times New Roman'" mat-card-subtitle>Technical Description</h2>
<p>
Bernoulli Euler Digital is partially implemented using the
<a target="_blank" href="https://docs.dasch.swiss/">DaSCH Service Platform</a> &mdash; a generic virtual research
environment (VRE) for the humanities, built with
<a target="_blank" href="https://www.npmjs.com/org/dasch-swiss">DSP-JS and DSP-UI libraries</a>.
This platform will be further extended with further editions of works and correspondence of the members
of the Bernoulli dynasty and Leonhard Euler.
</p>
<p>
Bernoulli Euler Digital contains the first RDF-star-based digital edition in the field of humanities, namely the digital edition of
Jacob Bernoulli's Reisbüchlein. The information about the journeys is structured as RDF-star data using
the RDF-star-based `trip` ontology we defined for this purpose.
The SHACL shapes accompanied by this ontology are used to verify the data representing journeys, stays,
activities etc. that are given in travel journals such as Reisbüchlein.
We employed RDF-star technology to generate the digital edition of Reisbüchlein data because it is well suited for representing metadata-oriented documents. <br/>
The RDF-star data of Reisbüchlein are stored separately from the DaSCH storage system in a GraphDB
triplestore. Hence, complex queries can be efficiently performed on this database using SPARQL-star technology.
</p>
<p>
It is to be noted that the named entities (persons and locations) are extracted automatically from the entries of Reisbüchlein through the
<a target="_blank" href="https://sepidehalassi.github.io/textToRDFGraph/">textToRDFGraph</a>
pipeline, which structures the extracted entities as RDF resources and enriches them with information available on
the <a target="_blank" href="https://www.wikidata.org/wiki/Wikidata:Main_Page">Wikidata</a> database.
</p>
<p>
Bernoulli Euler Digital also contains the BEOL editions, including the correspondence of members of the
Bernoulli dynasty, their disciples, Leonhard Euler and his son, and a few other prominent mathematicians who were originally from Basel. <br/>
The Meditationes, the scientific notebook of Jacob Bernoulli, is also presented on this platform with his travel diary.
Like Reisbüchlein, this notebook is also represented as an interactive region-based digital edition, but
it is also multi-layered; i.e., the edition is created in four layers: diplomatic, critical, and
normalized transcriptions, as well as English translation layers.
</p>
<p>
Since early modern mathematicians corresponded extensively, creating a network of ideas known today as
the Republic of Letters, we have attempted to create an e-version of the Republic of Letters by
connecting our repository of the correspondence of Bernoulli mathematicians and Leonhard Euler to other
third-party repositories. As a proof of concept, we have connected the scientific correspondence of Sir
Isaac Newton (created by
<a target="_blank" href="https://www.newtonproject.ox.ac.uk/">The Newton Project</a> of the University
of Oxford) and the <a target="_blank" href="http://leibniz-briefportal.adw-goe.de/start">Briefportal Leibniz</a>,
containing the correspondence of Gottfried Wilhelm Leibniz. Users can thus access the letters included
in these two repositories through our platform. Furthermore, through advanced query tools of our platform,
users of our platform can also perform metadata and text queries on the entire correspondence network
included in this platform, namely correspondence of Bernoulli mathematicians Leonhard Euler, Johann
Albrecht Euler, Isaac Newton, and Gottfried Leibniz. Users can also see the correspondence network visually.
</p>
<p>
We have created 3D interactive web-based <a target="_blank" hre="https://vis.beol.dasch.swiss/">visualizations</a>
of the correspondence data that can be accessed here. The correspondence networks are visualized as 3D
force-directed graphs preventing the overlap of nodes and edges. Nodes represent RDF resources
(for correspondents and letters), and edges represent the relations between the resources; for example,
see <a target="_blank" href="https://vis.beol.dasch.swiss/myLetterNetwork_3D/graphs/bebbCorrespondence/">here</a>.
Users can interact with the visualization, zoom in and out, move the graph nodes around, and change
their viewpoint to study the graph. To study the underlying resources (letters, persons) closely, users
can access the representation of the nodes on the BEOL platform with a simple double-click on the nodes.
These visualizations are also available in WebVR format and can be viewed and interacted with using
standard VR headsets (such as Oculus). Our platform also contains the visualization of the correspondence
of Leonhard Euler and Christian Goldbach based on the topic of letters visualized as a 3D DAG-Force tree;
see <a target="_blank" href="https://vis.beol.dasch.swiss/myLetterNetwork_3D/graphs/subjectVisualization/">here</a>.
Through this visualization, users can study the change in the topic of correspondence between these two mathematicians over time.
</p>
<br/>
<h2 style="font-size:35px; font-family: 'Times New Roman'" mat-card-subtitle>About us</h2>
<p>
Bernoulli Euler Digital, as an extension of BEOL, was created in the framework of the
<a target="_blank" href="https://forschdb2.unibas.ch/inf2/rm_projects/object_view.php?r=4665830&type=1">JourneyStar
project</a> funded by the University of Basel and executed at the <a target="_blank" href="https://dhlab.unibas.ch">Digital Humanities Lab</a>
of the University of Basel. The project team consisted of:
</p>
<ul>
<li><a target="_blank" href="https://orcid.org/0000-0002-5627-9501">Dr. Sepideh Alassi</a> (Project Lead)</li>
<li>Vijeinath Tissaveerasingham (Front-End Developer)</li>
<li><a target="_blank" class="salsah-link" (click)="goToResource('http://rdfh.ch/0801/c4O3sR9bRp-xytsF4GJ-NQ')"> Martin Mattmüller</a> (Chief Editor)</li>
<li>Eline Elmiger (Assistant)</li>
<li>Ann Karimi Kern (Assistant)</li>
</ul>
<p>
Bernoulli-Euler Online (BEOL) was a <a href="https://p3.snf.ch/project-166072" target="_blank">project</a> funded by the Swiss
National Science Foundation during 2016-2020. It was a collaboration between the
<a target="_blank" href="https://bez.unibas.ch">Bernoulli Euler Centre</a> and the
<a target="_blank" href="https://dhlab.unibas.ch">Digital Humanities Lab</a> (both University of Basel).
The BEOL project team consisted of:
</p>
<ul>
<li><a target="_blank" href="https://orcid.org/0000-0003-1681-4036">Prof. Dr. Lukas Rosenthaler</a> (PI)</li>
<li>Prof. Dr. Helmut Harbrecht (PI)</li>
<li><a target="_blank" href="https://orcid.org/0000-0002-4480-900X">Dr. Tobias Schweizer</a> (Project Lead, Developer)</li>
<li><a target="_blank" href="https://orcid.org/0000-0002-5627-9501">Dr. Sepideh Alassi</a> (PhD candidate at the time, Developer)</li>
<li><a target="_blank" class="salsah-link" (click)="goToResource('http://rdfh.ch/0801/c4O3sR9bRp-xytsF4GJ-NQ')"> Martin Mattmüller</a> (Chief Editor)</li>
</ul>
<br/>
<h3 style="font-size:35px; font-family: 'Times New Roman'" mat-card-subtitle>Feedback</h3>
<p>
In case of questions or problems or if you have suggestions,
<br>please <a href="/contact">contact</a> us.
</p>
<br/>

</section>
</div>
</div>

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