iiinova — where your digital self keeps evolving

Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 19/04/2026

I also got gifts from Wikimedia 😃. A pair of socks with Wikipedia jigsaw motifs. A deck of playing cards. This is not a usual one; the figures are historical card pictures and have references to their sources in Wikimedia Commons. I got a beautiful "Wikipedia […] [Original post on mstdn.degu.cl]

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 19/04/2026

The Stadtbibliothek Stuttgart has a very special architecture. The building is like a cube with small rectangular windows. A glass ceiling on top allows natural light to enter—it is probably the floor of the upper levels of the library. Visiting the library is […] [Original post on mstdn.degu.cl]

Looking up at the ceiling inside the Stadtbibliothek Stuttgart. A white cube-shaped interior with small square windows scattered across the walls and ceiling, appearing as diamonds due to the perspective, a square glass skylight in the center, and purple ambient lighting along the edges.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 19/04/2026

The #WikipediaBus is touring Germany for the 25th anniversary of #Wikipedia! If you missed the Stuttgart stop, there are still several cities to go: - May 9, Münster - May 30, Hamburg - June 6, Berlin (MV) - June 20, Köln - July 11, München - September 18 […] [Original post on mstdn.degu.cl]

Me standing next to the Wikipedia Bus, a blue van with the text "Wissen ist menschlich" ("Knowledge is human") on the side and a large Wikipedia globe balloon on the roof. The bus is parked in front of the Stadtbibliothek Stuttgart. Behind is the entrance to the Milaneo commercial center.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 19/04/2026

Yesterday, I celebrated the 25th anniversary of Wikipedia with the Wikipedia Bus at the Stadtbibliothek Stuttgart. With the Cluster of Excellence SimTech of the University of Stuttgart (@Uni_Stuttgart), we prepared some activities to explain how knowledge is […] [Original post on mstdn.degu.cl]

An interactive stand at the Wikipedia Bus event in the Stadtbibliothek Stuttgart. A table with a laptop and a large screen displaying a Wikidata quiz application. Behind the table, two research posters titled "Research Knowledge Meets Wikidata" and "Wie hängt Wissen zusammen?" ("How is knowledge connected?"), alongside a SimTech banner.

Three people are standing in front of the research posters and the SimTech banner at the Wikipedia Bus event, smiling at the camera. They are wearing event badges on lanyards. From left to right: Tabea, Daniel, and Patrick.

Three people are standing in front of the research posters at the Wikipedia Bus event. From left to right: Daniel, Patrick, and Denny.

Group photo of six people standing in front of the research posters and SimTech banner at the Wikipedia Bus event in the Stadtbibliothek Stuttgart. All are wearing event badges. From left to right: Blazej, Daniel, Denny, an attendee who joined us, Tabea, and Jenny Kopsch-Xhema (CEO of Cluster of Excellence and SC SimTech).

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 30/03/2026

It was snowing a minute ago. Now the sun is shining again. It has been this way all day: snow, sun, snow, sun. #Snow #Photography #Stuttgart

Some trees in a forest that I can see from my window. The snow is falling between the trees, and it is so dense that I cannot see the trees well. Snowflakes are about one centimeter.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 29/03/2026

This is Koblenz Hbf, the main train station in #Koblenz, #Germany. I am waiting for the train to Stuttgart. This is the third time @Ayenkantun and I visited Koblenz. This time we traveled to attend Philipp Seifer's PhD defense. I co-author several papers with […] [Original post on mstdn.degu.cl]

View of the train station. It is mostly empty and the sky is blue with some clouds.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 22/03/2026

I went with @Ayenkantun to the Schwabengalerie shopping center yesterday. There were many decorations! #Stuttgart #Germany #Ostern

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 08/03/2026

A picture shows women joining in the center of #Santiago de #Chile for the #8M. Baquedano Square looks beautiful again with the green of the grass and trees. I can distinguish women walking, buying green and purple "pañuelos" and people around a performance. 🙂 […] [Original post on mstdn.degu.cl]

The Baquedano Square in the center of Santiago de Chile. The picture is taken from the air, likely from a drone. Many people are joining and doing different things. Around the Baquedano Square are buildings with multiple floors and the green of the trees. Behind the buildings it is possible to see some mountains.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 04/03/2026

@Ayenkantun found these pictures from 2011 at the XI Congreso Nacional de Software Libre (XI National Free Software Congress) in La Paz, Bolivia. I talked about #OpenData and #KnowledgeGraphs. Between 2009 and 2011, I worked on Chilean open data projects […] [Original post on mstdn.degu.cl]

Sonia and Daniel with TuX (a penguin-dressed person) in the middle. Above is a promotional banner from the conference, with the title, sponsors, and Tux's face. The banner background is a picture of La Paz.

Me speaking with the microphone in one hand. In one corner there is a part of the projected slide, and in the other is a conference banner with some information and Tux. I am wearing a sweater I bought in La Paz.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 28/02/2026

This branch line was declared a national monument in 2007. The map comes from the description of the branch line in the Spanish #wikipedia25 The map is part of the provincial maps of the “Atlas Centenario,” which was edited between 1908 and 1911 […] [Original post on mstdn.degu.cl]

Provincial map including Talca and Chillan. It includes part of the ocean and a section of Chile, including the branch line. It is painted by hand and shows the mountains.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 28/02/2026

There was a fire on the tracks along the way. The train had to stop to assess the situation. The train attendants (and I) got off to see what it was. Since it was only a minor fire, the engineer instructed us to get back on board, and the train passed over the […] [Original post on mstdn.degu.cl]

Picture taken from the train windows after the train stopped. It is possible to see the fire on the lines with so much smoke because of the burning grass. The sky was blue because it was a sunny summer day.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 28/02/2026

The train was full of passengers, some wearing traditional local clothing. As it traveled through rural areas, many people boarded with agricultural products or animals such as chickens. It stopped in many small towns where you could get off to buy a snack. In […] [Original post on mstdn.degu.cl]

In this picture, people are buying snacks.

All the seats are taken. Some people are standing, holding onto a bar on the train ceiling.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 28/02/2026

This was the Talca train station in 2009. #Chile #Trains #Memories Picture credits: @Ayenkantun

Talca train station. The walls are painted in soft colors, and there is a sign on the entrance door indicating the name of the station: “Estación de Talca.” The station doors are made of wood, and there are five steps to climb to enter the station. The sky is a deep blue color.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 28/02/2026

Two days ago, Gabriel Boric reopened the Talca-Constitución branch line, which was damaged during the 2010 earthquake. @Ayenkantun and I took that trip in February 2009. This is a photo from our journey. www.instagram.com/reel/DVMtRDiDmRk

Sonia and I before boarding the train at Talca station. Behind us you can see the cyan, yellow, and white train. The train was old but very well maintained. We are smiling for the camera with our luggage while someone nearby took our picture.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 15/02/2026

@Ayenkantun made this picture of me a couple of weekends ago. I was running, and she was riding the bike on a path in the forest between Vaihingen and Sindelfingen. I liked the picture, but it seems I am overstriding because my foot lands behind my center of […] [Original post on mstdn.degu.cl]

A man (me) running on a gravel path in the forest. The trees show no leaves, the grass is short, and some small trees have orange leaves. There is some fog in the distance.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 08/02/2026

@joacim @selea @Ayenkantun It seems I resolved the issues with the TongFang GX4 laptop 😃. I thought a newer kernel would help, so I installed Pop!_OS on this laptop. However, it continues with many issues (such as the one in the picture when powering it on and […] [Original post on mstdn.degu.cl]

Picture of the laptop screen with a kernel panic message in the middle, written with white letters over a purple screen. In the corner there is a penguin drawn with ASCII art.

Picture of the screens showing a message multiple times when the system is powering off. The message says, "INFO: task shutdown:1 blocked for more than 122 seconds." It increases the number of seconds ten times until reaching 1228 seconds.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 01/02/2026

According to this #Wikidata query (w.wiki/HgMK), there are currently two universities in the world with #Mastodon instances, managed by @KIT_Karlsruhe and @uniinnsbruck. Are there more?

This image shows the form and the results at the bottom.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 02/01/2026

En Alemania, el deshollinador es un símbolo de buena suerte para el nuevo año. Además, tiene un trébol de cuatro hojas para reforzar la prosperidad en el nuevo año. Este lo compramos con @Ayenkantun para el 2026. Ella estuvo haciendo una investigación sobre […] [Original post on mstdn.degu.cl]

Una pequeña figura humana con una escalera amarilla en una mano. El cuerpo está hecho con un alambre con fibras negras. La cabeza es una bolita de esponja rosada con una cara sonriente dibujada, cachetes rojos y un sombrero de copa negro. Esta figura está entre unas hojas de trébol de cuatro hojas sobre un macetero dorado.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 15/11/2025

Hoy tomamos el tren a Múnich con @Ayenkantun para votar mañana las elecciones presidenciales de #Chile. Al llegar nos encontramos con un tren arcoiris. Espero que mañana la gente no vote a la extrema derecha ni al facismo y podamos seguir teniendo un Chile democrático y respetuoso con la diversidad.

Un largo tren blanco con una franja arcoiris que se encuentra detenido en la estación. El cielo se ve oscuro y las luces de la estación están encendidas.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 29/10/2025

A week ago, @wai@https://w3c.social tell us (w3c.social/@wai/115411162522521110) that WCAG 2.2 becomes an ISO standard. According to the WHO, 1.3 billion people experience significant disabilities. This is thus a big step for making a #Web for all […] [Original post on mstdn.degu.cl]

Top of the first page of the paper, showing the title, AccessGuru: Leavering LLMs to Detect and Correct Web Accessibility Violations in HTML Code. It also shows the authors: Nadeen Fathallah, Daniel Hernández, and Steffen Staab.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 26/10/2025

How to represent scenes that change on the time to perform tasks on them? Tomorrow, Oct 26, @osamamohammed will present a paper by Osama Mohammed, Jiaxin Pan, Mojtaba Nayyeri, me, and Steffen Staab at the European Conference on Artificial Intelligence […] [Original post on mstdn.degu.cl]

A figure showing a graph where nodes are edges use different colors. Yellow, green, and blue nodes represent dynamic elements of the scene, whereas black nodes represent static elements. Red dashed arrows represent edges between different snapshots. Below the figure, there are labels explaining the use of colors for the respective snapshots.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 25/10/2025

In a world striving for sustainability, circular production is no longer optional, it's essential. At the Circular Production Systems and Technologies conference experts from research and industry will discuss how circular technologies reshape production […] [Original post on mstdn.degu.cl]

A picture of the Karlsruhe castle with the logos of the organizers on the bottom, and the tittle of the conference on the top. The castle have yellow walls and a gray roof. The sky looks cloudy.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 20/08/2025

@eswc_conf It seems that the ESWC2025 website is not working.

Picture showing an error message: "There has been a critical error on this website. Learn more about troubleshooting WordPress." The last sentence is in blue to indicate it is a link.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 02/08/2025

Yuqicheng Zhu (@yuqichengzhu.bsky.social) presented our paper, Predicate-Conditional Conformalized Answer Sets for Knowledge Graph Embeddings, at #ACL2025. This paper studies a key question for the reliability of applications using knowledge graph embeddings […] [Original post on mstdn.degu.cl]

Yuqicheng is standing in front of his poster. The poster is on a panel with the number 299.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 15/07/2025

Is Complex Query Answering Really Complex? We evaluate models that predict answers to queries over knowledge graphs on a reduced set of standardized benchmarks. This Wednesday at 16:30, Cosimo Gregucci will discuss this question and our paper at the poster […] [Original post on mstdn.degu.cl]

Picture of the poster extended over a table under the light of the sun crossing the window. The poster describes several graphs representing queries and their answers.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 28/06/2025

A hummingbird butterfly was flying among the lavender flowers when @Konenpanien and I were on the way to the supermarket this morning. We don't always have the opportunity to see one that stays among the same flowers long enough to film it. It's a pity we didn't have a better camera with us.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 15/06/2025

Today we were skating with @Ayenkantun on a nice track in Vaihingen. She made a video of me skating. The grass around the track was high, and full of flowers and insects. We discovered a good place to skate.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 11/05/2025

Cosimo Gregucci (PhD student at @UniStuttgartAI @Uni_Stuttgart) will present our paper "Is Complex Query Answering Really Complex?" at the International Conference on Machine Learning, #ICML2025. We observed that we can answer many of the current benchmarks for […] [Original post on mstdn.degu.cl]

A screenshot of the paper showing the structures of queries, depending on the links that were seen in training and the links that are missing. Queries are depicted with directed graphs, where missing links are represented with dotted lines and seen links are represented with regular lines.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 01/05/2025

Yesterday @royaheeee and I presented our paper, DAGE: DAG Query Answering via Relational Combinator with Logical Constraints, at the Web Conference #WWW2025. Existing query answering methods over knowledge graph embedding were limited to decomposable queries […] [Original post on mstdn.degu.cl]

Yunjie he is presenting a poster to a woman.

Yunjie He is presented a poster to a man.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 16/02/2025

@skinnylatte Thank you for sharing this story. When I was in Singapore in 2024, I had to read about the Japanese occupation after seeing this mural that was in the top of the Faber mount. The project of saving the oral histories is extremely valuable […] [Original post on mstdn.degu.cl]

A relief mural showing the Japanese army entering Singapore, and killing some blindfolded people. A group of planes passes by bombing the city and a military man is standing in front of a committee sitting at a table, in what looks like an act of surrender.

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Daniel Hernández @daniel.mstdn.degu.cl.ap.brid.gy · 10/02/2025

Today @yiyiyiyi gave @Ayenkantun and me some gifts from China. In the pictures, there are moon cakes (to celebrate the Chinese new year). The covering is sweet cake, it is filled with winter melon jam, and in the middle it has a salty egg yolk. A very uncommon combination for us, but very delicious.

A moon cake with a removed piece to show how it is inside.

A moon cake where the egg yolk is distinguishable from the winter melon jam.

The box with a bitten moon cake. The cover has a relief that appears to be a woman dancing in a dress with Chinese symbols.

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