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Lien

@liendata.bsky.social
521 followers 865 following 241 posts

Data. Semiconductor. Process mining. Homemade memes. Occasional artist. Skills of a data engineer and education of a data scientist... but I enjoy working as an overqualified data analyst instead 🦄

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Lien @liendata.bsky.social · 03/01/2026
For the ones interested: these are all the ways the organization "Raad Van State" and its legal id where spelled in the EU Tender data, for a very limited subset of data (50ish procedures). ted.europa.eu/en/
ted.europa.eu
TED ---- TED - EU Tenders, the Supplement to the Official Journal
Homepage of the official portal of TED, Tenders Electronic Daily. TED contains all active notices published in the Supplement to the EU Official Journal.
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Lien @liendata.bsky.social · 03/01/2026
Haters gonna hate but I love wild data. It just doesn't hit the same after all the little human footprints are scrubbed clean #databs
Screenshot that shows 6 objects called a variation of "Raad van State" having an id that is a variation of "0931.814.266".
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Lien @liendata.bsky.social · 09/12/2025
Hit my goal early this year 🌟 (and made a chart of course #databs)
Chart with title "2025 Goal Progress". Horizontal axis from January 1st to December 31st. Vertical axis from 0 to 100. Light blue area chart went up to about 20 around the end of March, plateaued until mid August, climbed up to 50 by end of September and climbed further to 100 by beginning of December.
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Lien @liendata.bsky.social · 07/12/2025
Ending a busy weekend with solving days 5, 6 and 7 in one sitting. Only 5 days left of unconventional SQL fun 😊
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Lien @liendata.bsky.social · 05/12/2025
When you picked the right programming language for day 5 😄
Success kid meme.
Mentally preparing myself for another day of recursive SQL.
"they give you a copy of their database (your puzzle input)."
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Lien @liendata.bsky.social · 04/12/2025
Day 4 was definitely a lot harder then the first three, but happy to report I eventually figured out how to do it with SQL 😊 #AdventOfCode #databs adventofcode.com/2025/day/4
adventofcode.com
Day 4 - Advent of Code 2025
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Lien @liendata.bsky.social · 03/12/2025
Day 3... Strap in for some recursive SQL 🔋🔋🔋🔋🔋🔋🔋🔋🔋🔋🔋🔋 adventofcode.com/2025/day/3
adventofcode.com
Day 3 - Advent of Code 2025
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Lien @liendata.bsky.social · 02/12/2025
Should I use SQL for Advent of Code? ...probably not But can I solve all puzzles using SQL? ...again, probably not But will I try anyway? ... definitely yes 🦆 #databs github.com/LienBosmans/...
github.com
GitHub - LienBosmans/AdventOfCode2025: Solving Advent of Code puzzles with SQL (DuckDB)
Solving Advent of Code puzzles with SQL (DuckDB). Contribute to LienBosmans/AdventOfCode2025 development by creating an account on GitHub.
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Reposted by Lien
Lien @liendata.bsky.social · 26/11/2025
To all data peeps that want to work on very cool data & all (semiconductor) industry peeps that want to move into a full-time data role, this is your chance! www.imec-int.com/en/work-at-i...
imec-int.com
Fab Reporting Business Analyst | imec
As a Fab Reporting Business Analyst, you provide the Fab teams with the data and reports they need to run the Pilot Lines effectively and efficiently.
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Lien @liendata.bsky.social · 26/11/2025
To all data peeps that want to work on very cool data & all (semiconductor) industry peeps that want to move into a full-time data role, this is your chance! www.imec-int.com/en/work-at-i...
imec-int.com
Fab Reporting Business Analyst | imec
As a Fab Reporting Business Analyst, you provide the Fab teams with the data and reports they need to run the Pilot Lines effectively and efficiently.
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Lien @liendata.bsky.social · 07/10/2025
If you're not making yourself the hero of the internal documentation you're writing, what's even the point? #databs
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Lien @liendata.bsky.social · 07/10/2025
You are faced with two data sources. One mostly tells the truth, the other sometimes lies. They never answer your questions at the same time. A small mob of stake-holders is demanding a fresh and perfectly trustworthy report of events. In short, you are utterly and completely fucked. Luckily, ...
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Lien @liendata.bsky.social · 04/10/2025
hehe, spotted a "TODO" in the documentation... Can't even blame them, I do it all the time 😂
Screenshot of eProcurementOntology documentation (link at end).
The text "TODO: add defintion" is highlighted.
https://docs.ted.europa.eu/EPO/latest/_attachments/html_reports/ePO/EARoot/EA1/EA2/EA102.htm
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Lien @liendata.bsky.social · 04/10/2025
Those pesky datasets never are 🥲
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Lien @liendata.bsky.social · 04/10/2025
I'm currently in the muddy part of getting to know a new dataset... and a new API... and a new query language... wish me luck #databs! At least the documentation seems pretty complete 😊
docs.ted.europa.eu
eProcurementOntology
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Lien @liendata.bsky.social · 30/09/2025
Damn... If you know data people that want to move to Europe, they'd be very welcome... imec is a cool organization and pretty international. www.imec-int.com/en/work-at-i... www.imec-int.com/en/work-at-i... www.imec-int.com/en/work-at-i...
imec-int.com
ICT Solution architect data platforms | imec
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Lien @liendata.bsky.social · 29/09/2025
New PyStack't documentation site is live! lienbosmans.github.io/pystackt/ #pystackt #opensource #OCED #processmining
lienbosmans.github.io
PyStack’t Documentation
Real-life data for object-centric processing mining
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Lien @liendata.bsky.social · 25/09/2025
Not yet, I'm sure they are out there! But I'm guessing they are busy doing more useful things than giving these kind of demos 😄
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Lien @liendata.bsky.social · 25/09/2025
What's awesome about building open source is that you don't have to worry about sales prospects. For example, using your favourite animal stacking poo cubes as the logo for a data preparation tool, is a totally valid option. #databs
Drawing of a wombat with clean, simple lines. The gray wombat is sitting and stacking three rounded cubes in front of it. The cubes are brown. To the left of the wombat, in light brown, the letters of PyStack't are stacked a bit jumbly in three rows: p y - s t a - c k 't.
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Lien @liendata.bsky.social · 23/09/2025
How's your side project going? #databs #opensource
Drake No/Yes Meme. No: Improving PyStack't. Yes: Creating a cute logo. The logo in question shows a black-and-white drawing of a wombat with clean, simple lines. The wombat is sitting and stacking three rounded cubes in front of it. To the left of the wombat, in light grey, the letters of PyStack't are stacked a bit jumbly in three rows: py - sta - ck't.
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Lien @liendata.bsky.social · 28/08/2025
Mister Crabs (from Spongebob) lying in a pile of money. Caption reads "Software vendors after showing demo of AI going brrrrr to C-suite."
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Lien @liendata.bsky.social · 22/08/2025
Mostly DuckDB & some Polars at home, SQL, Excel, Databricks and PowerBI at work.
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Lien @liendata.bsky.social · 21/08/2025
Vendor demos be like "give us money because AI goes brrrrr"
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Lien @liendata.bsky.social · 17/08/2025
Ooooh, I made a tool that can extract a dataset from the activity data (issues/pull requests) of a GirHub repo. I'll try it with the tidytuesday repo next week to see what comes out 😄
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Lien @liendata.bsky.social · 05/08/2025
#objectcentric #processmining #pystackt #databs
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Lien @liendata.bsky.social · 05/08/2025
👑 Improve the docs. (I'm known as a queen of typos after all)
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Lien @liendata.bsky.social · 05/08/2025
🐍 Fix my code. (Apparently, it's not "pythonic" enough... or so I'm told)
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Lien @liendata.bsky.social · 05/08/2025
🎁 Contribute a data exporter to your favorite OCED format, or a data extractor for an open data source you're excited to dive into.
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Lien @liendata.bsky.social · 05/08/2025
📣 Shamelessly promote your compatible & open-source tool, method, use-case, ... by dropping a link in our docs.
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Lien @liendata.bsky.social · 05/08/2025
📢 PyStack't is now open for contributions! (To be honest, it always was, but now there is a contributing guide to make it more obvious and to help you get started.) So, for anyone out there working on object-centric process mining, you're invited to 🧵 github.com/LienBosmans/...
github.com
GitHub - LienBosmans/pystackt: Data preparation for object-centric process mining
Data preparation for object-centric process mining - LienBosmans/pystackt
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Lien @liendata.bsky.social · 25/07/2025
Blub 🫧
Screenshot of draw a fish app after you let the fish swim. My fish is orange/red and has a cute black eye with a white highlight.
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Lien @liendata.bsky.social · 05/07/2025
This app allows me to relive my insect nerd childhood days and I'm loving it 😍 play.google.com/store/apps/d...
Grey-banded Mining Bee. (Kruiskruidzandbij in Dutch.) Little bee sitting on a yellow flower.Marmalade Hoverfly. (Snorzweefvlieg in Dutch.) Hoverflu with yellow, white and black stripes and big reddish eyes sitting on a blue flower.Empis livida. (Akkerdisteldansvlieg in Dutch.) Looks like a hybrid between a mosquito and a fly, sitting on a white flower.Common Carder Bumblebee. (Akkerhommel in Dutch). Close up of a bumblebee hanging upside down on small white flowers.
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Lien @liendata.bsky.social · 01/07/2025
"The translation from a business-oriented request into a data-oriented request should be on the data professional, not the stakeholder." and plenty more wisdom nuggets to be found here ⬇️
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Reposted by Lien
Nicola Rennie @nrennie.bsky.social · 01/07/2025
If you're not sure how to interpret horizon plots, this gif is a nice, quick explainer: bernatgel.github.io/karyoploter_...
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Lien @liendata.bsky.social · 26/06/2025
#processmining #OCPM #pystackt
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Lien @liendata.bsky.social · 26/06/2025
🪶 Even better documentation! "The docs maketh the tool" - "Write for the user base you want, not the user base you have" - "Fine docs make a fine tool" ..or something like that.
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Lien @liendata.bsky.social · 26/06/2025
🧪 Experimental support for PromG! Getting the data in an event knowledge graph just got easier... Not easy breazy lemon squeezy, lots of room for improvement in future releases, hence that "experimental" over there, but definitely easier than in the previous version, when there was nothing for EKGs.
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Lien @liendata.bsky.social · 26/06/2025
😧 No more disappointment in the morning when your overnight GitHub log extraction failed because of GitHub API outages, forced system restarts or obscure errors... Thank you improved error handling and intermediate save functionality!
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Lien @liendata.bsky.social · 26/06/2025
New PyStack't release! This one is called v0.1.0 and includes 🧵 github.com/LienBosmans/... #databs
github.com
GitHub - LienBosmans/pystackt: Data preparation for object-centric process mining
Data preparation for object-centric process mining - LienBosmans/pystackt
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Lien @liendata.bsky.social · 25/06/2025
You can always use this comic from Nathan W. Pyle? 😄
Four panel comic about 2 blue aliens on a science fair. First panel: Young being standing next to a poster says "I have attempted science" and teacher asks "Please explain". Second panel: Young being replies "I formed an idea and then discovered I was wrong". Third panel: teacher looks closely at the poster and remarks "there are numerous diagrams" to which young being replies "I was wrong in numerous ways". Fourth panel: Young being says "I produced a detailed tribute to my wrongness" to which teacher replies "That is science".
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Lien @liendata.bsky.social · 24/06/2025
In my neighborhood you can order local plants once a year, which we did for some of the hedges and shrubs, because it was cheap and easy 😄 I'll link it for anyone from Vlaams-Brabant, Belgium in case they are interested 😉 www.behaagjetuin.be
behaagjetuin.be
Behaag je tuin | Home
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Lien @liendata.bsky.social · 24/06/2025
Our garden is a mixed bag of local plants (like shrubs and hedges) and a wildflower patch for pollinators, but also some plain grass for playing and some non-local plants I like.
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Lien @liendata.bsky.social · 24/06/2025
It's not always clear which plants are native when you go to the plant store, and I don't want to do a lot of research. Sometimes you also want to plant stuff of which you have fond (childhood) memories, and, if it's not invasive, I think that's a valid reason to choose some non-local plants too.
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Lien @liendata.bsky.social · 22/06/2025
open.spotify.com
Tegenwoordige Tijd
Pommelien Thijs · Tegenwoordige Tijd · Song · 2025
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Lien @liendata.bsky.social · 20/06/2025
I agree that's not where you want to start a career in data engineering but I actually really liked starting out as a data team of one to figure out which parts of the job I liked best before moving into an analyst focused role 😄
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Reposted by Lien
Ben Harrap @bharrap.bsky.social · 20/06/2025
It's funny how the answer to "What is the problem with this function!?" is almost always "it's me, I am the problem" #rstats #databs
media.tenor.com
a drag queen is standing in front of an orange background and asking is it me ? am i the drama ?
Alt: a drag queen is standing in front of an orange background and asking is it me ? am i the drama ?
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Lien @liendata.bsky.social · 19/06/2025
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Lien @liendata.bsky.social · 18/06/2025
I built an open-source Python package to feed some data-starving researchers some real-life process data (activity from open-source GitHub repos) and, apart from a GitHub API outage, the testing is going surprisingly well.
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Ellie Sleightholm @elliesleightholm.bsky.social · 18/06/2025
Talking about a beautiful branch of mathematics :) #mathematics #stem
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Lien @liendata.bsky.social · 18/06/2025
Getting closer...
Screenshot of terminal output.
18-06-2025 19:27    Extracting and mapping data for issue #17289 done ...66.5% (about 37679.9s remaining)
18-06-2025 19:27    Starting intermediate save process...
18-06-2025 19:27    Saving object-centric event data extracted from pandas-dev/pandas to DuckDB database file ./pandas_all_20250617.duckdb, schema stackt.
Overwriting schema 'stackt'
    Table object_types (4 records) done.
    Table object_attributes (15 records) done.
    Table objects (214020 records) done.
    Table object_attribute_values (643050 records) done.
    Table event_types (37 records) done.
    Table events (836399 records) done.
    Table event_attributes (37 records) done.
    Table event_attribute_values (251858 records) done.
    Table relation_qualifiers (7 records) done.
    Table event_to_object (1837081 records) done.
    Table object_to_object (50698 records) done.
    Table event_to_object_attribute_value (0 records) done.
18-06-2025 19:32    Extracting and mapping data for issue #17089 done ...66.8% (about 37327.3s remaining)
18-06-2025 19:36    Extracting and mapping data for issue #16941 done ...67.0% (about 37056.2s remaining)
18-06-2025 19:37    Extracting and mapping data for issue #16903 done ...67.1% (about 36988.2s remaining).
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