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**Harald Sack** @lysander07@sigmoid.social · 18h

Harald Sack @lysander07@sigmoid.social

@fiz_karlsruhe On the picture (left to right): Tabea Tietz @tabea, Bruno Sartini, Arianna Graciotti, Sasha Bruns @sashabruns

#dh #digitalhunanities #semweb

**Harald Sack** @lysander07@sigmoid.social · 1d

Harald Sack @lysander07@sigmoid.social

Catching up with dear old friends and colleagues at the #eswc2025 welcome receiption yesterday evening. With more than 270 participants the conference already is a big success! I met Claudia d‘Amato for the first time back in 2005 or 2006 at an Italian Semantic Web Conference in Trento

Me and Claudia smiling to the camera. I‘m wearing sun glasses.

#semanticweb #semweb #KnowledgeGraphs

**Harald Sack** @lysander07@sigmoid.social · 2d *

2d *

Harald Sack @lysander07@sigmoid.social

LLMs are starving for knowledge graphs. Raphael Troncy was pointing out that many LLM company crawlers are constantly visiting their KGs. Some crawlers even perform explicit SPARQL queries on the KGs.

#knowledgegraphs #eswc2025 #semweb

**Harald Sack** @lysander07@sigmoid.social · 2d *

2d *

Harald Sack @lysander07@sigmoid.social

In his keynote, Raphael Troncy is asking whether we should keep building knowledge graphs....taking into account 20 years of experience in building knowledge graphs

https://2025.eswc-conferences.org/keynotes-announcement-raphael-troncy/

The image shows a presentation setting with a speaker standing at a podium. The speaker is a man wearing a light-colored shirt and a lanyard, addressing an audience. Behind him, a large screen displays a slide with a blue background and white text. The slide's title reads "Building Knowledge Graphs For 20 Years: Should We Keep Doing This?" and includes the name "Prof. Raphael Troncy" below the title. The presentation appears to be taking place in a conference or seminar room, with a plain wall in the background and a few audience members visible in the foreground. The lighting is focused on the speaker and the screen, creating a professional atmosphere.

#eswc2025 #semanticweb #semweb

**Harald Sack** @lysander07@sigmoid.social · 2d *

2d *

Harald Sack @lysander07@sigmoid.social

From this year on, ESWC will be under the umbrella of SWSA, the Semantic Web Science Association, to secure financial sustainability for the upcoming years after its previous supporting organisation STI was dissolved in 2023. Basics about the transition are given by Elena Simperl, president of SWSA.

https://swsa.semanticweb.org/

#swsa #eswc2025 #iswc2025 @eswc_conf #semanticweb #semweb

The image shows a presentation slide titled "ESWC[@]SWSA" displayed on a large screen. The slide outlines the oversight rules that SWSA will follow with ESWC, similar to those at ISWC. The text includes bullet points detailing the roles and responsibilities, such as inviting the general chair, approving program chairs, and holding town hall meetings for improvement. It also mentions the transparent process for appointing local hosts, using profits for sustainability, and ensuring the conference series meets standards of excellence. The slide concludes with a note about exploring opportunities to align ESWC and ISWC for greater impact as a joint community.

In the foreground, a person stands at a podium, presumably delivering the presentation. The audience is partially visible, with a few individuals facing the speaker. The setting appears to be a conference room with a plain wall and a projection screen. The overall atmosphere suggests a formal presentation or meeting.

Provided by @altbot, generated privately and locally using Ovis2-8B

**Harald Sack** @lysander07@sigmoid.social · 2d *

2d *

Harald Sack @lysander07@sigmoid.social

ESWC 2025 has just started with the presentation of the submission numbers to the individual tracks:
research track: 98 papers
resource track: 36 papers
in-use track: 22 papers

Looking forward to great presentations and discussions!

The image shows a presentation slide titled "Research Track in Numbers" displayed on a projector screen. The slide details the statistics of a research track, including the number of abstracts and full paper submissions, the acceptance rate, and the reviewing team's performance. It states that there were 125 abstracts and 98 full paper submissions, with 5 desk rejects and 26 accepted papers, representing a 26.5% acceptance rate. The reviewing team consisted of 23 Senior Program Committee (SPC) members, 156 regular reviewers, 8 emergency reviewers, and 31 subreviewers. The reviewing load was low, with an average of 2.9 papers per PC, 4.0 papers per SPC, and 4.4 reviews per paper. The slide is presented by two individuals standing behind a podium, with one person speaking into a microphone. The background is a plain wall with a green curtain on the left side.

Provided by @altbot, generated privately and locally using Ovis2-8B

The image shows a presentation slide titled "In-Use Track in Numbers" displayed on a large screen. The slide contains bullet points with statistical information about the track. The first bullet point states that there were 22 abstracts and 22 full submissions, with 0 desk rejects and 8 accepted papers, which is 36.3% of the submissions, indicating a very competitive track. The second bullet point highlights the "Great reviewing team!" with 25 reviewers, 71 reviews in total, and an average of 3-4 reviews per paper. The third bullet point mentions a "Low review workload" with 2.8 papers per PC (Program Committee member). The presenter is standing at a podium on the left side of the image, with an audience visible in the foreground, facing the screen. The room appears to be a conference or seminar setting, with a simple and professional atmosphere.

The image shows a presentation slide titled "Resource Track in Numbers" displayed on a large screen. The slide contains bullet points with numerical data. The first bullet point states "41 abstracts / 36 full submissions," with sub-points indicating "1 desk reject" and "11 accepted papers (30.6%)." The second bullet point is labeled "Reviewing" and includes "131 reviews," "10 SPC," and "52 reviewers." A person is standing at a podium to the left of the screen, wearing a green shirt and a lanyard, with a microphone in front of them. The audience is partially visible, with the backs of their heads shown. The room appears to be a conference or seminar setting, with a plain background and a projector screen.

#eswc2025 #semweb #semanticweb

**Harald Sack** @lysander07@sigmoid.social · 3d

Harald Sack @lysander07@sigmoid.social

Post workshop refreshment out on the roof terrace...
The SemDH 2025 received lots of positive feedback from all of the people I spoke with. Very well done and kudos to the organising team: @tabea @srush_nlp Arianna Graciotti and Bruno Sartini! Looking forward to the workshop dinner tonight

#semdh @semdh #eswc2025 #semanticweb #semweb #knowledgegraphs #ontologies #dh #digitalhumanities #photo #bokeh @eswc_conf @fiz_karlsruhe @fizise @nfdi4culture

A wineglass filled with icecubes and an orange bitter lemonade, called "gingerino", standing on a white table next to a small and empty bottle of Gingerino. The rest of the scenery is the inventory of a roof terrace, all out of focus of the camera.

**Harald Sack** @lysander07@sigmoid.social · 3d

Harald Sack @lysander07@sigmoid.social

Excellent keynote in the #SemDH2025 workshop by Laura Hollink on Cultural Bias in Linked Open Data. Laura is addressing all bias related aspects in cultural heritage items itself, in the data representing it, the data schemata, vocabularies, and ontologies on which the data are based, as well as in the knowledge representation languages used to create the schemata.

#bias #eswc2025 #semanticweb #semweb #knowledgegraphs #ethics @nfdi4culture

Laura Hollink presenting her keynote at Semantic Digital Humanities 2025 Workshop, standing in front of the projection screen.

**Harald Sack** @lysander07@sigmoid.social · 3d

Harald Sack @lysander07@sigmoid.social

"Learn how to see. Realize that everything connects to everything else", but how to do this with Linked Data? Eero Hyvönen is quoting Leonardo Da Vinci as an intro to his presentation "How to Create a Portal for Digital Humanities Research Using a Linked Open Data Cloud of Cultural Heritage Knowledge Graphs: Case SampoSampo"

paper: https://semdh.github.io/accepted-papers#paper11
webpage: https://seco.cs.aalto.fi/projects/ss/

#semdh2025 #eswc2025 #semanticweb #semweb #knowledgegraphs #sampo @nfdi4culture

Eero Hyvönen sitting in fron of the presentation screen, delivering his talk.

**Harald Sack** @lysander07@sigmoid.social · 3d

Harald Sack @lysander07@sigmoid.social

Good Morning Portoroz! Day 02 of ESWC 2025 is going to start with many interesting Workshops! Hope to see you there! Let’s have a coffee
#eswc2025 #semanticweb #semweb #KnowledgeGraphs #NeuroSymbolicAI #dh #semdh2025 @fiz_karlsruhe @fizise @tabea @sashabruns @enorouzi @nfdi4culture

**Harald Sack** @lysander07@sigmoid.social · 4d

Harald Sack @lysander07@sigmoid.social

SemDH Workshop is about to take place at ESWC25 in the beautiful city of Portoroz, Slovenia on Monday, June 2nd, 2025!

Check out the full, detailed program at https://semdh.github.io/program.html

The keynote will be held by Laura Hollink, Human-Centered Data Analytics group leader at CWI, Amsterdam on "Cultural bias in Linked Open Data"

#semdh2025 #semdh25 #eswc2025 @eswc_conf #dh #digitalhumanities #semweb #semanticweb #knowledgegraphs @tabea @semdh @sashabruns @albertmeronyo

Piazza Tartini in pitoresque Piran, a small village located only 10 minutes from the conference location.

**Harald Sack** @lysander07@sigmoid.social · 4d *

4d *

Harald Sack @lysander07@sigmoid.social

Conference colateral benefit: catching up with Good old Friends & colleagues, talking research, and having a decent Espresso

#eswc2025 #slovenia #semanticweb #NeuroSymbolicAI #semweb #KnowledgeGraphs #academiclife @AxelPolleres @fiz_karlsruhe @fizise @eswc_conf

Me (left) and Axel, smiling for a selfi above the adriatic sea. @lysander07 The image features two men standing close together, smiling at the camera. They are both wearing glasses and lanyards with green tags. The man on the left has white hair and a beard, wearing a striped shirt, while the man on the right has gray hair and is wearing a black polo shirt. They are positioned in front of a large window that offers a scenic view of a body of water, likely a lake or sea, with lush green trees and a clear blue sky in the background. The setting appears to be a sunny day, with the men standing on a balcony or terrace, enjoying the view.

Provided by @altbot, generated privately and locally using Ovis2-8B

🌱 Energy used: 0.148 Wh

**Harald Sack** @lysander07@sigmoid.social · 4d *

4d *

Harald Sack @lysander07@sigmoid.social

Good Morning ESWC 2025! If you want to join me for a morning run during the conference week, don’t hesitate to address me when you see me around

Me, taking a selfie at Piazza Tartini, Piran, slovenia. @lysander07 The image features a man standing in the foreground, taking a selfie. He is wearing a black cap with the word "HULDA" printed on it, a black t-shirt with blue accents, and glasses. The man has a gray beard and is smiling. In the background, there is a large, open square with classical architecture, including a prominent building with columns and a tall tower with a spire. The sky is clear and blue, indicating a sunny day. The buildings are painted in pastel colors, and the square is empty, suggesting it might be a quiet time of day.

Provided by @altbot, generated privately and locally using Ovis2-8B

🌱 Energy used: 0.143 Wh

#eswc2025 #academiclife #semweb

**Harald Sack** @lysander07@sigmoid.social · 5d

Harald Sack @lysander07@sigmoid.social

Portoroz coastline by night. Tomorrow, ESWC 2025 will start with 2 days of workshops & tutorials, before the main conference with the "official" opening on June 3rd. Looking forward to a great conference! :)

https://2025.eswc-conferences.org/about/

#eswc2025 #semanticweb #semweb #knowledgegraphs #reliableAI #explainableAI #llms #slovenia @fiz_karlsruhe @fizise @tabea @enorouzi @sashabruns

Portoroz coastline with the harbour and the lights by night.

**isws** @isws@sigmoid.social · May 19

May 19

isws @isws@sigmoid.social

Dear registered students for ISWS 2025, please keep in mind that the deadline for the poster submission is not far away...
We are looking forward to your submissions!

#isws2025 #summerschool #semanticweb #semweb #llm #nlp #knowledgegraph #AI #responsibleAI #reliableAI @sourisnumerique @lysander07

Poster of the ISWS 2024 summer school. The image is of a poster affixed to a fence, highlighting topics related to scientific research. The poster discusses the "VIEWSARI Knowledge Graph 1.0" and references Giorgio Vasari's perspectives on his new renaissance in art and science. There seems to be a focus on ontology mapping within this context as well as recognition of works related to different figures or concepts such as Panoisky's theories or methodologies (referred to as lemeks). The overall theme suggests an evolution or advancement in understanding scientific knowledge through a graphical representation, emphasizing both historical and contemporary insights into various works recognized within this field.

**isws** @isws@sigmoid.social · May 16

May 16

isws @isws@sigmoid.social

Yes, we also have a running group in the mornings. But beware, Bertinoro lies in beautiful Emilia Romagna....and this also means "hills" to climb ;-)

#running #isws2024 #summerschool #semanticweb #semweb #knowledgegraphs #llms #generativeAI #AI @lysander07

Selfie of the ISWS 2024 running group, Day 01, at the point of return back up hill to the castle...

**isws** @isws@sigmoid.social · May 12

May 12

isws @isws@sigmoid.social

Early morning at Bertinoro castle, view towards Rimini and the Adriatic Sea (at the far end of the horizon). Following the antique philosophy of "mens sana in corpore sano", a typical ISWS morning starts with a little sports outside....

#bertinoro #isws #isws2024 #summerschool #semweb #semanticweb #knowledgegraphs #AI @enorouzi @lysander07 #academiclife

View from outside Bertinoro castle towards East. The sun has just risen. Early morning. There is still mist over the beautiful landscape of Emilia Romagna, towards Rimini at the Adriatic sea. On the left we see some of the old fortress murals on which already some bushes of grass are growing. In front, we see a small terrace. The floor is overgrown with grass.

**isws** @isws@sigmoid.social · May 5

May 5

isws @isws@sigmoid.social

...and we also have very good coffee at Bertinoro castle ;-)

#coffeechallenge #perfectespresso #bertinoro #isws #isws2024 #summerschool #semweb #semanticweb #knowledgegraphs #AI @enorouzi @lysander07 @academiclife

A small cup of eswpresso placed on a pedestal in focus. Walls, cobblestone street and pots with plants are in bokeh.

**isws** @isws@sigmoid.social · May 2

May 2

isws @isws@sigmoid.social

Every ISWS student is asked to provide a poster illustrating her/his research. We are organising poster sessions on two days so that students can get valuable feedback (a) from all tutors as well as (b) from their peers. Tutors will discuss all posters and select candidates for "Best Poster" awards ;-)

Poster Title: "Music Composition as a Co-Creation Process Between Artists and AI" (Nicolas Lazzar, supervised by Valentina Presutti).

Description: A comic-strip narrative depicts the evolving human-AI relationship in music—from fear ("I'm afraid of what I don’t understand") to collaboration ("Astonishing!"). Dark, muted visuals show people with computers, instruments, and chess games symbolizing interaction.

Sections:
Future Work & Preliminary Results: Panels on music theory, ontology, and AI-assisted generation, with QR codes.

Logos: STLab, Future AI Research, Universities of Pisa & Bologna.

Mood: Academic yet artistic, hopeful about AI’s role in music despite initial apprehension.

#isws2025 #summerschool #semanticweb

**Harald Sack** @lysander07@sigmoid.social · Apr 25 *

Apr 25 *

Harald Sack @lysander07@sigmoid.social

What does it mean "to know" something? Have you ever thought about it? We tried to make our students think about it in this week's first #ise2025 lecture.

#kit200 #lecture #knowledge #philosophy #knowledgerepresentation #understanding #semweb #knowledgegraph #nlp @fiz_karlsruhe @fizise @enorouzi @sourisnumerique

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