CURRENTLY PATERNITY LEAVE. Notes on my work with (cultural heritage) FAIR data. Topics cover Programming, Open Science, Digital Humanities, Knowledge Graphs, Linked Data, Metadata, data catalogs, Wikidata, RDF, SPARQL and the Semantic Web.

Royal Library of Belgium

Sven Lieber

Dear subscriber,  Welcome to the first edition of my new weekly newsletter! Within different recurring categories I will provide updates of my work, my personal journey, and topics such as Knowledge Graphs, Linked Data, FAIR data, Open Science and many more. It is conference season!

FAIR Data Digest #1

Hi everyone,  in today’s slightly more technical edition I will focus on my recent encounters with the Linked Data query language SPARQL. Many of you may know it as a language to retrieve data (possibly from Wikidata). I mainly use it for a project where I recently found some performance issues that could be resolved by either rewriting the query or changing the approach.

FAIR Data Digest #22

Hi everyone,  last week I told you about
<em>
 European Research Infrastructures Consortia
</em>
or ERIC in short. Today we gonna look into one of these ERICs that is active in the Cultural Heritage field. I also have to celebrate a tiny anniversary related to Wikidata and I will share a resource about FAIR Jupyter notebooks.

FAIR Data Digest #7

Hi everyone,  welcome to the 3rd edition of my newsletter! Besides the fact that we have suffered the first official heat wave in Belgium this year, I have other hot information to share.

FAIR Data Digest #3

Dear subscriber,  welcome to the second edition of the newsletter and also a warm welcome to all new subscribers. It has been an interesting week. In this edition I will talk about some work updates, a one-day workshop I’ve attended last week and I have a video recommendation.

FAIR Data Digest #2

Hi everyone,  welcome to today’s edition on the the
<em>
 European Day of Languages
</em>
(Q496423).  ::: {.subscription-widget-wrap attrs=“{"url":"https://fairdata.substack.com/subscribe?","text":"Subscribe","language":"en"}” component-name=“SubscribeWidgetToDOM”}  Thanks for reading FAIR Data Digest! Subscribe for free to receive new posts and support my work.

FAIR Data Digest #17

Hi everyone,  welcome to another summer-break edition. This time with a webinar recording about persistent identifiers for FAIR data and news about data cataloging with DCAT both in Europe and the US.  ::: {.subscription-widget-wrap attrs=“{"url":"https://fairdata.substack.com/subscribe?","text":"Subscribe","language":"en"}” component-name=“SubscribeWidgetToDOM”}  Thanks for reading FAIR Data Digest!

FAIR Data Digest #10

Hi everyone,  greetings to one of our summer editions! Whether you're on vacation, just back, or about to head off, I've got some interesting content to share with you.

FAIR Data Digest #9

Hi everyone,  today’s edition is about FAIR data that is not necessarily related to cultural heritage, but related to cars 🚗. We will have a look into an Open Data dataset of the Dutch government that provides data which hopefully helps me to answer some questions about
<strong>
 child safety seats
</strong>
. Statistics shown in this post come from this GitHub repository.

FAIR Data Digest #23

Hi everyone,  did you ever wonder how FAIR data is put into practice? This week I went down the rabbit hole and what I brought back is the start of a new series to
<strong>
 unravel the many FAIR data initiatives
</strong>
. There are also some good news for (Belgian) FAIR data in my work update!

FAIR Data Digest #5

Hi everyone,  I’m on vacation now, but thanks to pre-scheduling you won’t miss out FAIR data updates! Today I want to share with you a research paper in which the authors report on the creation of large amounts of FAIR data which they host on Wikidata.

FAIR Data Digest #12

Hello everyone,  welcome to today’s Halloween edition about
<em>
 data anti-patterns
</em>
that hopefully will scare you so much you don’t do them :-) Things you better avoid when aiming for FAIR data. Anti patterns?

FAIR Data Digest #20

Hi everyone,  greetings from Karlsruhe in Germany where I am attending a conference about research data infrastructure at the moment.

FAIR Data Digest #15

Hi everyone,  it has been a while since we talked about research infrastructures. Many of them might sound abstract or just like super specialized app stores. But today we have a brief look into something very tangible: heritage objects that are analyzed by instruments or are digitized in other forms. There is lots of diverse data in Heritage Science. ❓ FAIR Buzzword Bingo: what is E-RIHS?

FAIR Data Digest #21

Hi everyone,  in today’s edition I will try to explain what DARIAH / CLARIAH is and what they do in the context of FAIR data. I am also sharing a video of some recent presentations about Wikipedia from the Wikimedia Research Showcase. ::: {.subscription-widget-wrap attrs=“{"url":"https://fairdata.substack.com/subscribe?","text":"Subscribe","language":"en"}” component-name=“SubscribeWidgetToDOM”}  Thanks for reading FAIR Data Digest!

FAIR Data Digest #8

Hi everyone,  if you are a researcher and you want to follow the FAIR data principles you are not left alone. In today’s edition I will try to explain what ERIC is and what they have to do with FAIR data. As for work updates: I was on a small camping vacation in France, so there are no work updates, but I came back with many ideas for the future!

FAIR Data Digest #6

Hi everyone,  this week it’s all about hands-on! I will talk about a webinar on trying to fix quality issues in Wikidata by using its ontology. Additionally I will share a few resources around basics and advanced uses of the query language SPARQL that is used to query Linked Data, for example from Wikidata.

FAIR Data Digest #4

Hi everyone,  welcome back to today’s edition in which I share a work update related to bibliographic data and provide information to an upcoming interesting talk. ::: {.subscription-widget-wrap attrs=“{"url":"https://fairdata.substack.com/subscribe?","text":"Subscribe","language":"en"}” component-name=“SubscribeWidgetToDOM”}  Thanks for reading FAIR Data Digest! Subscribe for free to receive new posts and support my work.

FAIR Data Digest #19

Hi everyone,  this edition starts with two announcements before it dives into the topic of software engineering skills for data science. This newsletter started as a
<strong>
 weekly newsletter
</strong>
in which I shared topics around FAIR data and updates about my work. Selecting one or more topics each week is fun and helps myself to
<em>
 summarize
</em>
and
<em>
 understand
</em>
topics better.

FAIR Data Digest #18

Hi everyone,  as promised, today you will hear more about the research data infrastructure conference where I and around
<strong>
 680 other people
</strong>
attended last week in Karlsruhe, Germany. Grab a cup of coffee of tea and enjoy today’s edition!

FAIR Data Digest #16

Hi everyone,  I hope you had a great summer. The academic year is about to start and I hope you are hungry for some knowledge :-) In today’s edition I want to introduce you to the European Open Science Cloud (EOSC).  ::: {.subscription-widget-wrap attrs=“{"url":"https://fairdata.substack.com/subscribe?","text":"Subscribe","language":"en"}” component-name=“SubscribeWidgetToDOM”}  Thanks for reading FAIR Data Digest!

FAIR Data Digest #14

Hi everyone,  this last summer-break edition ties in with the previous edition. Last week I’ve wrote over research to make
<strong>
 publication metadata
</strong>
from the free publishing service CEUR-WS
<strong>
 available in a FAIR fashion
</strong>
, such that the data can be explored.

FAIR Data Digest #13

Hi everyone,  today’s summer-break edition is for anyone who likes free and open knowledge. There is a short video that explains the intriguing new
<strong>
 Wikifunctions
</strong>
project. Besides that I will talk about my experiences of creating a Wikidata page about a company, hopefully it inspires you to also contribute to free and open knowledge.

FAIR Data Digest #11

FAIR Data Digest

Hi everyone,

today's summer-break edition is for anyone who likes free and open
knowledge. There is a short video that explains the intriguing new
**Wikifunctions** project. Besides that I will talk about my experiences
of creating a Wikidata page about a company, hopefully it inspires you
to also contribute to free and open knowledge. Warning, it can be
addicting ;-)

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🎥 Anyone who has ever cooked knows that **only knowing the ingredients
is not sufficient for success**. The recipe to follow, thus the steps to
perform is of great importance to create a delicious meal. In computer
science you have functions which you give an input to receive an output.
As with a recipe, **what the function does is important knowledge!**
Don\'t miss the *Wikifunctions in 7 minutes* video that explains how the
**Wikimedia foundation** is creating a **catalog of multilingual
functions** to share such important knowledge.

🌐 I was updating my Wikidata entry and noticed that a company I've
previously worked for was not yet on Wikidata. Check out how I used
**existing databases, guidelines and the web archive** to create FAIR
data about my former employer *science + computing ag*
([Q121307911](https://www.wikidata.org/wiki/Q121307911)).

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# 🎥 Videos not to miss: Wikifunctions in 7 minutes {#videos-not-to-miss-wikifunctions-in-7-minutes}

<div>

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</div>

Could you bake delicious pancakes only with ingredients and without the
recipe of your grandma? In this case maybe yes, but for many things the
recipe, or more general the steps to perform are important knowledge. In
technical terms you can speak of *functions*, and the **Wikimedia
foundation is trying to give them also a dedicated home such that they
become FAIR!**

The following 7 minutes video by [Denny
Vrandečić](https://twitter.com/vrandezo), one of the founders of
Wikidata, will tell you all about the new exiting project Wikifunctions.

Not part of the video, but I'm also curious to see how Wikifunctions
will **integrate with** **other existing catalogs of functions**. [Ben
De Meester](https://work.de-meester.org/), a former colleague of mine,
created the Function Ontology (🦄 FnO) and a
[hub](https://fno.io/hub/search) to search for functions. [DOI:
10.1016/j.future.2019.10.006](https://doi.org/10.1016/j.future.2019.10.006).

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aktiviere JavaScript, falls es in deinem Browser deaktiviert sein
sollte.
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# 🌐 Wikidata Spotlight: company s+c {#wikidata-spotlight-company-sc}

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</div>

Last week I noticed that an IT company for which I've worked for a few
years was not yet linked to my Wikidata page. This information is on my
LinkedIn page, but **not yet as structured open data on Wikidata and I
wanted to change that!**

First things first: I used the **Wikidata search** to check if the
company already exists on Wikidata. If yes I could have just created a
link. Unfortunately there was not yet a Wikidata item. Thus I've created
one with a label and a description to start with. There are
[guidelines](https://www.wikidata.org/wiki/Help:Description) about what
a good description should look like.

I also **looked up the company in different databases to obtain
third-party identifiers**: the [Virtual International Authority
File](https://viaf.org/) (VIAF) and the [International Standard Name
Identifier](https://isni.org/) (ISNI). Additionally, I've looked up the
companies identifier in the Google Knowledge Graph via the
[kalicube](https://kalicube.pro/tools/knowledge-graph-explorer) website.

Ideally, **claims on Wikidata should be supported with references**.
Specific information about the registration of the company I found in
the *German Commercial register (Handelsregister)*. Since 2020 they
provide a web interface to search for registered companies.
Unfortunately there are **no unique links or identifiers**. So instead
of providing a precise URL as a reference, I could only indicate
***that*** the information is stated in the register, but not
***where*** (see image below).

::: {.captioned-image-container}
<figure>
<a
href="https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb868535c-beae-402c-abaa-f3436fcb57c5_804x237.png"
class="image-link image2" target="_blank"
data-component-name="Image2ToDOM"></a>
<div class="image2-inset">
<img
src="https://substackcdn.com/image/fetch/w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb868535c-beae-402c-abaa-f3436fcb57c5_804x237.png"
class="sizing-normal"
data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b868535c-beae-402c-abaa-f3436fcb57c5_804x237.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:237,&quot;width&quot;:804,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:22296,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null}"
srcset="https://substackcdn.com/image/fetch/w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb868535c-beae-402c-abaa-f3436fcb57c5_804x237.png 424w, https://substackcdn.com/image/fetch/w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb868535c-beae-402c-abaa-f3436fcb57c5_804x237.png 848w, https://substackcdn.com/image/fetch/w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb868535c-beae-402c-abaa-f3436fcb57c5_804x237.png 1272w, https://substackcdn.com/image/fetch/w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb868535c-beae-402c-abaa-f3436fcb57c5_804x237.png 1456w"
sizes="100vw" loading="lazy" width="804" height="237" />
<div>

</div>
</div>
<figcaption>Backing up a claim by using a reference: if the source would
provide a unique identifier and URL this would be even
better.</figcaption>
</figure>
:::

## Finding references and other links. {#finding-references-and-other-links.}

Nowadays, the company is part of another company. Via the [web
archive](https://archive.org/) I checked older news items from the
company to check for noteworthy links. Apparently the company
participated in the European project KnowARC
([Q2602664](https://www.wikidata.org/wiki/Q2602664)). I found that
project on Wikidata with minimal information (only a label and subclass
of statement). So, by looking up the project on the European CORDIS
service, I could complete the Wikidata item of the project, including a
link to the company item I just created =\> science + computing ag
([Q121307911](https://www.wikidata.org/wiki/Q121307911)).

There are actually many tutorials on how to do things on Wikidata. Go
check them out and contribute as well to open and free knowlegde.

[Check out the Wikidata
tutorials](https://www.wikidata.org/wiki/Wikidata:Tours){.button
.primary}

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That's it for this week of the FAIR Data Digest. I hope you found the
content interesting. Don't forget to share or subscribe. See you next
week!

Sven

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