Ansgar Scherp
@ansgarscherp.bsky.social
Researcher, Entrepreneur-thinker, Free-Your-Mind!
We are happy to announce an update to our article “Semantic Web: Past, Present, and Future”, published in TGDK 2(1): 3:1–3:37 (2024). ✨
The article has been extended with learning methods on knowledge graphs and language models and knowledge graphs. 🤖📚
🔗 lnkd.in/eDNDYSp5
Feedback is very welcome! 💬
The article has been extended with learning methods on knowledge graphs and language models and knowledge graphs. 🤖📚
🔗 lnkd.in/eDNDYSp5
Feedback is very welcome! 💬
LinkedIn
This link will take you to a page that’s not on LinkedIn
lnkd.in
November 20, 2025 at 12:06 PM
We are happy to announce an update to our article “Semantic Web: Past, Present, and Future”, published in TGDK 2(1): 3:1–3:37 (2024). ✨
The article has been extended with learning methods on knowledge graphs and language models and knowledge graphs. 🤖📚
🔗 lnkd.in/eDNDYSp5
Feedback is very welcome! 💬
The article has been extended with learning methods on knowledge graphs and language models and knowledge graphs. 🤖📚
🔗 lnkd.in/eDNDYSp5
Feedback is very welcome! 💬
An interesting new paper on the Distances Between Formal Concept Analysis Structures just published in @tgdkjournal.bsky.social See: drops.dagstuhl.de/entities/doc...
Distances Between Formal Concept Analysis Structures
drops.dagstuhl.de
October 16, 2025 at 8:38 PM
An interesting new paper on the Distances Between Formal Concept Analysis Structures just published in @tgdkjournal.bsky.social See: drops.dagstuhl.de/entities/doc...
I wonder how many conferences taking place this year in the US will be online only / in parts virtual because of what is going on there - Or to put it in MeidasTouch's Tennessee Brando's words, "America Is Now a Dictatorship", see substack.com/inbox/post/1...
America Is Now a Dictatorship
We Are There Now
substack.com
September 7, 2025 at 8:24 PM
I wonder how many conferences taking place this year in the US will be online only / in parts virtual because of what is going on there - Or to put it in MeidasTouch's Tennessee Brando's words, "America Is Now a Dictatorship", see substack.com/inbox/post/1...
When Springer renames a journal from IR to "Discover Computing", it sucks! Now it looks like our article with @lukasgalke.bsky.social and Iacopo Vagliano appeared in there. I don't even know what "Discover Computing" is, nor does my AI-companion.
Stop doing this. The journal impact factor is now 0.
Stop doing this. The journal impact factor is now 0.
May 27, 2025 at 4:45 PM
When Springer renames a journal from IR to "Discover Computing", it sucks! Now it looks like our article with @lukasgalke.bsky.social and Iacopo Vagliano appeared in there. I don't even know what "Discover Computing" is, nor does my AI-companion.
Stop doing this. The journal impact factor is now 0.
Stop doing this. The journal impact factor is now 0.
🤖 Classic ML Still Matters: I make my case
🔍 Discrete Key-Value Bottleneck
arxiv.org/abs/2207.11240
➡️ k-means for codebook—buried in refs
🌲 CascadeXML
arxiv.org/abs/2211.00640
➡️ Transformer + hierarchical k-means label tree
🧠 Mirage
arxiv.org/abs/2310.09486
➡️ Graph distillation via pattern mining
🔍 Discrete Key-Value Bottleneck
arxiv.org/abs/2207.11240
➡️ k-means for codebook—buried in refs
🌲 CascadeXML
arxiv.org/abs/2211.00640
➡️ Transformer + hierarchical k-means label tree
🧠 Mirage
arxiv.org/abs/2310.09486
➡️ Graph distillation via pattern mining
Discrete Key-Value Bottleneck
Deep neural networks perform well on classification tasks where data streams are i.i.d. and labeled data is abundant. Challenges emerge with non-stationary training data streams such as continual lear...
arxiv.org
May 16, 2025 at 8:25 PM
🤖 Classic ML Still Matters: I make my case
🔍 Discrete Key-Value Bottleneck
arxiv.org/abs/2207.11240
➡️ k-means for codebook—buried in refs
🌲 CascadeXML
arxiv.org/abs/2211.00640
➡️ Transformer + hierarchical k-means label tree
🧠 Mirage
arxiv.org/abs/2310.09486
➡️ Graph distillation via pattern mining
🔍 Discrete Key-Value Bottleneck
arxiv.org/abs/2207.11240
➡️ k-means for codebook—buried in refs
🌲 CascadeXML
arxiv.org/abs/2211.00640
➡️ Transformer + hierarchical k-means label tree
🧠 Mirage
arxiv.org/abs/2310.09486
➡️ Graph distillation via pattern mining
Thank you, we still have sane people in the US!
@meidastouch.com
Now it is time for US research institutions to stand up! @columbiauniversity.bsky.social you can do better!
Make Ron happy!
@meidastouch.com
Now it is time for US research institutions to stand up! @columbiauniversity.bsky.social you can do better!
Make Ron happy!
INSANE news day. I really need nothing else to happen today. Thank you.
May 8, 2025 at 7:12 PM
Thank you, we still have sane people in the US!
@meidastouch.com
Now it is time for US research institutions to stand up! @columbiauniversity.bsky.social you can do better!
Make Ron happy!
@meidastouch.com
Now it is time for US research institutions to stand up! @columbiauniversity.bsky.social you can do better!
Make Ron happy!
In the US, classes are back online — not due to a pandemic, but because students fear being snatched off the street and deported 😟📚
Meanwhile, in Germany, some still act like it’s a game
To students & scholars: you’re welcome here.
To Europe’s academics: wake up. This is not a drill. ⏰🌍
#50501
Meanwhile, in Germany, some still act like it’s a game
To students & scholars: you’re welcome here.
To Europe’s academics: wake up. This is not a drill. ⏰🌍
#50501
May 8, 2025 at 7:08 PM
In the US, classes are back online — not due to a pandemic, but because students fear being snatched off the street and deported 😟📚
Meanwhile, in Germany, some still act like it’s a game
To students & scholars: you’re welcome here.
To Europe’s academics: wake up. This is not a drill. ⏰🌍
#50501
Meanwhile, in Germany, some still act like it’s a game
To students & scholars: you’re welcome here.
To Europe’s academics: wake up. This is not a drill. ⏰🌍
#50501
The AI that DOGE allegedly uses is obviously a simple list of regular expressions (aka a Gazetteer approach) and aims to delete all web content, fire all people, etc., that match on trans*, gay*, dei * ...
see also the "Enola Gay" story, www.youtube.com/watch?v=CQ90...
see also the "Enola Gay" story, www.youtube.com/watch?v=CQ90...
March 9, 2025 at 7:35 PM
The AI that DOGE allegedly uses is obviously a simple list of regular expressions (aka a Gazetteer approach) and aims to delete all web content, fire all people, etc., that match on trans*, gay*, dei * ...
see also the "Enola Gay" story, www.youtube.com/watch?v=CQ90...
see also the "Enola Gay" story, www.youtube.com/watch?v=CQ90...
📢 A major tech-related legal case is back in the spotlight! A well-documented scandal in the British Post Office—caused by programming errors—led to serious miscarriages of justice.
Great to see *Comm. of the ACM* covering this important issue in their latest edition.
cacm.acm.org/news/how-sof...
Great to see *Comm. of the ACM* covering this important issue in their latest edition.
cacm.acm.org/news/how-sof...
How Software Bugs led to ‘One of the Greatest Miscarriages of Justice’ in British History – Communications of the ACM
cacm.acm.org
March 6, 2025 at 9:17 PM
📢 A major tech-related legal case is back in the spotlight! A well-documented scandal in the British Post Office—caused by programming errors—led to serious miscarriages of justice.
Great to see *Comm. of the ACM* covering this important issue in their latest edition.
cacm.acm.org/news/how-sof...
Great to see *Comm. of the ACM* covering this important issue in their latest edition.
cacm.acm.org/news/how-sof...
American scientists, come to Europe! 🌍✈️ We all speak English, we have excellent affordable health care 🏥💊, safe schools 🏫🔒, and free university education for your kids 🎓👨👩👧👦. Enjoy more money after deduction of taxes and living expenses 💰📉. We care for you! ❤️🤝
www.youtube.com/watch?v=9_l0...
www.youtube.com/watch?v=9_l0...
American Scientists - come to Europe.
YouTube video by Scientists for EU
www.youtube.com
February 27, 2025 at 11:10 AM
American scientists, come to Europe! 🌍✈️ We all speak English, we have excellent affordable health care 🏥💊, safe schools 🏫🔒, and free university education for your kids 🎓👨👩👧👦. Enjoy more money after deduction of taxes and living expenses 💰📉. We care for you! ❤️🤝
www.youtube.com/watch?v=9_l0...
www.youtube.com/watch?v=9_l0...
🗞️ A simple trick improves embedding retrieval performance even without further training.
ZCA whitening increases isotropy of the embedding space and thereby helps retrieval
Paper by Andor Diera and with @lukasgalke.bsky.social at ESANN 2025.
Preprint: arxiv.org/abs/2411.17538
ZCA whitening increases isotropy of the embedding space and thereby helps retrieval
Paper by Andor Diera and with @lukasgalke.bsky.social at ESANN 2025.
Preprint: arxiv.org/abs/2411.17538
Isotropy Matters: Soft-ZCA Whitening of Embeddings for Semantic Code Search
Low isotropy in an embedding space impairs performance on tasks involving semantic inference. Our study investigates the impact of isotropy on semantic code search performance and explores post-proces...
arxiv.org
February 20, 2025 at 9:43 PM
🗞️ A simple trick improves embedding retrieval performance even without further training.
ZCA whitening increases isotropy of the embedding space and thereby helps retrieval
Paper by Andor Diera and with @lukasgalke.bsky.social at ESANN 2025.
Preprint: arxiv.org/abs/2411.17538
ZCA whitening increases isotropy of the embedding space and thereby helps retrieval
Paper by Andor Diera and with @lukasgalke.bsky.social at ESANN 2025.
Preprint: arxiv.org/abs/2411.17538
🚀 Text News Alert! 🚀
Our long-running text classification survey just got a fresh new home—and an epic boost! 🎉 /w @lukasgalke.bsky.social
* Added hierarchical classification (HTC) 📚
* Latest research papers on leveraging LLMs 🤖
👉 Explore More: github.com/ascherp/text...
Our long-running text classification survey just got a fresh new home—and an epic boost! 🎉 /w @lukasgalke.bsky.social
* Added hierarchical classification (HTC) 📚
* Latest research papers on leveraging LLMs 🤖
👉 Explore More: github.com/ascherp/text...
GitHub - ascherp/text-classification-survey: Companion website to a long-running survey on text classification.
Companion website to a long-running survey on text classification. - ascherp/text-classification-survey
github.com
February 20, 2025 at 9:37 PM
🚀 Text News Alert! 🚀
Our long-running text classification survey just got a fresh new home—and an epic boost! 🎉 /w @lukasgalke.bsky.social
* Added hierarchical classification (HTC) 📚
* Latest research papers on leveraging LLMs 🤖
👉 Explore More: github.com/ascherp/text...
Our long-running text classification survey just got a fresh new home—and an epic boost! 🎉 /w @lukasgalke.bsky.social
* Added hierarchical classification (HTC) 📚
* Latest research papers on leveraging LLMs 🤖
👉 Explore More: github.com/ascherp/text...
When fact's don't matter anymore, you end up with Elon and Donald. -
He's mad his lies about Ukraine were fact-checked by his own website so he wants to change the fact-checking system
February 20, 2025 at 9:21 PM
When fact's don't matter anymore, you end up with Elon and Donald. -
German public news authority @tagesschau.de.web.brid.gy's front page calls the Trump government by the right words: dictatorship and coup.
As a researcher, I need unfiltered facts.
I deleted the @cnn.com app weeks ago.
Tune in to Prof @meiselasb.bsky.social and @meidastouch.com
Src:
As a researcher, I need unfiltered facts.
I deleted the @cnn.com app weeks ago.
Tune in to Prof @meiselasb.bsky.social and @meidastouch.com
Src:
February 11, 2025 at 4:57 PM
German public news authority @tagesschau.de.web.brid.gy's front page calls the Trump government by the right words: dictatorship and coup.
As a researcher, I need unfiltered facts.
I deleted the @cnn.com app weeks ago.
Tune in to Prof @meiselasb.bsky.social and @meidastouch.com
Src:
As a researcher, I need unfiltered facts.
I deleted the @cnn.com app weeks ago.
Tune in to Prof @meiselasb.bsky.social and @meidastouch.com
Src:
After people have left X, they will also leave Facebook after this move. Luckily, not many researchers are actively pushing research content on FB anyway. So I won't care :-) @thebulwark.bsky.social
www.thebulwark.com/p/mark-zucke...
www.thebulwark.com/p/mark-zucke...
Mark Zuckerberg Is a Surrender Monkey
Capitulation is contagious.
www.thebulwark.com
January 7, 2025 at 5:01 PM
After people have left X, they will also leave Facebook after this move. Luckily, not many researchers are actively pushing research content on FB anyway. So I won't care :-) @thebulwark.bsky.social
www.thebulwark.com/p/mark-zucke...
www.thebulwark.com/p/mark-zucke...
🌟 Reflecting on the Semantic Web 🌟 With Katja Hose, Maria-Esther Vidal, Gerd Groener, and Petr Škoda, we wrote "Semantic Web: Past, Present, and Future", published in TGDK. A journey that started 13 years ago! 👉 Primer: drops.dagstuhl.de/entities/doc... ✨ Interested in contributing? Let’s chat!
Semantic Web: Past, Present, and Future
drops.dagstuhl.de
December 29, 2024 at 9:30 PM
🌟 Reflecting on the Semantic Web 🌟 With Katja Hose, Maria-Esther Vidal, Gerd Groener, and Petr Škoda, we wrote "Semantic Web: Past, Present, and Future", published in TGDK. A journey that started 13 years ago! 👉 Primer: drops.dagstuhl.de/entities/doc... ✨ Interested in contributing? Let’s chat!
Reposted by Ansgar Scherp
Transactions on Graph Data & Knowledge (TGDK), Vol. 2, Issues 2 & 3 now available, featuring 8 resource articles, and 2 research articles! All #DiamondOA (no fees for authors/readers) w/ Dagstuhl Publishing.
Enjoy!
2(2): drops.dagstuhl.de/entities/iss...
2(3): drops.dagstuhl.de/entities/iss...
Enjoy!
2(2): drops.dagstuhl.de/entities/iss...
2(3): drops.dagstuhl.de/entities/iss...
December 19, 2024 at 2:00 PM
Transactions on Graph Data & Knowledge (TGDK), Vol. 2, Issues 2 & 3 now available, featuring 8 resource articles, and 2 research articles! All #DiamondOA (no fees for authors/readers) w/ Dagstuhl Publishing.
Enjoy!
2(2): drops.dagstuhl.de/entities/iss...
2(3): drops.dagstuhl.de/entities/iss...
Enjoy!
2(2): drops.dagstuhl.de/entities/iss...
2(3): drops.dagstuhl.de/entities/iss...
Preventing catastrophic forgetting in NLP! 🌟 Our discrete key-value bottleneck enables efficient continual learning in encoder-only language models—no major updates, just localized tweaks. With Andor Diera and @lukasgalke.bsky.social Learn more! 🚀 arxiv.org/abs/2412.08528
Continual Learning for Encoder-only Language Models via a Discrete Key-Value Bottleneck
Continual learning remains challenging across various natural language understanding tasks. When models are updated with new training data, they risk catastrophic forgetting of prior knowledge. In the...
arxiv.org
December 13, 2024 at 10:02 PM
Preventing catastrophic forgetting in NLP! 🌟 Our discrete key-value bottleneck enables efficient continual learning in encoder-only language models—no major updates, just localized tweaks. With Andor Diera and @lukasgalke.bsky.social Learn more! 🚀 arxiv.org/abs/2412.08528
Standard GNNs excel on homophilic graphs but depend on neighborhood patterns. ES-MLP, a student project by Matthias Kohn and co-supervised with Marcel Hoffmann, presented at #log2024, combines Graph-MLP with edge-splitting for faster, robust, edge-free inference. openreview.net/forum?id=BQE...
Edge-Splitting MLP: Node Classification on Homophilic and...
Message Passing Neural Networks (MPNNs) have demonstrated remarkable success in node classification on homophilic graphs.
It has been shown that they do not solely rely on homophily but on...
openreview.net
December 7, 2024 at 4:18 PM
Standard GNNs excel on homophilic graphs but depend on neighborhood patterns. ES-MLP, a student project by Matthias Kohn and co-supervised with Marcel Hoffmann, presented at #log2024, combines Graph-MLP with edge-splitting for faster, robust, edge-free inference. openreview.net/forum?id=BQE...
Hierarchical Text Classification (HTC) vs. eXtreme Multilabel Classification (XML) are two research areas that have been disconnected so far. A team of students and with @lukasgalke.bsky.social we show that it is crucial to cross the two worlds. Read more arxiv.org/abs/2411.13687
Hierarchical Text Classification (HTC) vs. eXtreme Multilabel Classification (XML): Two Sides of the Same Medal
Assigning a subset of labels from a fixed pool of labels to a given input text is a text classification problem with many real-world applications, such as in recommender systems. Two separate research...
arxiv.org
December 7, 2024 at 4:04 PM
Hierarchical Text Classification (HTC) vs. eXtreme Multilabel Classification (XML) are two research areas that have been disconnected so far. A team of students and with @lukasgalke.bsky.social we show that it is crucial to cross the two worlds. Read more arxiv.org/abs/2411.13687
LossVal, a new efficient method for data valuation for neural networks. It allows assessing the importance of individual training samples for different tasks and constraints. Find out more arxiv.org/abs/2412.04158
LossVal: Efficient Data Valuation for Neural Networks
Assessing the importance of individual training samples is a key challenge in machine learning. Traditional approaches retrain models with and without specific samples, which is computationally expens...
arxiv.org
December 7, 2024 at 3:52 PM
LossVal, a new efficient method for data valuation for neural networks. It allows assessing the importance of individual training samples for different tasks and constraints. Find out more arxiv.org/abs/2412.04158
I grew up with Twitter, me and my academic life. We used it at conferences, saw it struggle financially & wondered if it’d survive. I never imagined a billionaire would buy it for $44B, overrun it, & turn it into a hate platform. Now, Twitter-based research is part of scientific history?
December 7, 2024 at 3:44 PM
I grew up with Twitter, me and my academic life. We used it at conferences, saw it struggle financially & wondered if it’d survive. I never imagined a billionaire would buy it for $44B, overrun it, & turn it into a hate platform. Now, Twitter-based research is part of scientific history?
Hierarchical text classification does not need a graph encoder or label semantics. Work at the European Conference on Artificial Intelligence 2024 (ECAI) by Yousef Younes and with @lukasgalke.bsky.social - learn more: ebooks.iospress.nl/doi/10.3233/...
IOS Press Ebooks - RADAr: A Transformer-Based Autoregressive Decoder Architecture for Hierarchical Text Classification
ebooks.iospress.nl
December 7, 2024 at 3:35 PM
Hierarchical text classification does not need a graph encoder or label semantics. Work at the European Conference on Artificial Intelligence 2024 (ECAI) by Yousef Younes and with @lukasgalke.bsky.social - learn more: ebooks.iospress.nl/doi/10.3233/...
... but it would be no fun if I just left X without saying anything further. From now on, I will advertise all my messages on Mastodon, BlueSky, and LinkedIn with a link from X and encourage people to move on and turn the page. Meanwhile, my X account is labeled as (legacy account) 😛 Elon
December 7, 2024 at 3:27 PM
... but it would be no fun if I just left X without saying anything further. From now on, I will advertise all my messages on Mastodon, BlueSky, and LinkedIn with a link from X and encourage people to move on and turn the page. Meanwhile, my X account is labeled as (legacy account) 😛 Elon
I decided weeks ago to leave Twitter, prepared it, and now it is done. So many others have done so by now, too.
December 7, 2024 at 3:27 PM
I decided weeks ago to leave Twitter, prepared it, and now it is done. So many others have done so by now, too.