First and foremost, we would like to thank the Institute for Applied Informatics for supporting our community and many thanks to the SEMANTiCS organization team for hosting this year’s community meeting. 

Opening of the DBpedia Day

Also this year, our CEO Sebastian Hellmann opened the community meeting by presenting the Databus 2.1.0 project (slides). Afterwards, Edward Curry from the University of Galway gave his fantastic keynote presentation “Towards Foundation Models for Data Spaces”. You can read his abstract here.

Member Presentation Session

Milan Dojchinovski, InfAI/DBpedia Association and CTU Prague, started the member presentation session with a short welcome. The first speaker was Angel Moreno, GNOSS, with his presentation “NEURALIA Rioja: the unified Knowledge Graph of La Rioja Government which integrates twenty six sources of information in a single access point” (slides). Shortly after, Enno Meijers, KB, talked about “Network-of-Terms, bringing links to your data” (slides). Next, Sarah Binta Alam Shoilee, Network Institute & Vrije Universiteit Amsterdam talked about ”Cultural AI Lab”(slides). This was followed by the presentation “Linking and Consumption of DBpedia in TriplyDB” by Kathrin Dentler & Wouter Beek, TriplyDB (slides). Then Sebastian Gabler, SWC, talked about “Using Dewey Decimal Classification for linked data” (slides). Finally, the last talk of this session was given by  Sebastian Tramp, eccenca, with “Using DBpedia Services with eccenca Corporate Memory and eccenca.my”.

For further details of the presentations follow the links to the slides. 

• “NEURALIA Rioja: the unified Knowledge Graph of La Rioja Government which integrates twenty six sources of information in a single access point” by Angel Moreno, GNOSS (slides)
• “Network-of-Terms, bringing links to your data” by Enno Meijers, KB (slides)
• ”Cultural AI Lab” by Sarah Binta Alam Shoilee, Network Institute & Vrije Universiteit Amsterdam (slides)
• “Linking and Consumption of DBpedia in TriplyDB” by Kathrin Dentler & Wouter Beek, TriplyDB (slides)
• “Using Dewey Decimal Classification for linked data” by Sebastian Gabler, SWC (slides)
• “Using DBpedia Services with eccenca Corporate Memory and eccenca.my” by Sebastian Tramp, eccenca (slides)

DBpedia Science: Linking and Consumption

This session was dedicated to the most recent research on linking and consumption of the DBpedia Knowledge Graph and beyond. Novel methods, tools and challenges around linking and consumption of knowledge graphs were presented and discussed. Milan Dojchinovski, InfAI/DBpedia Association and CTU Prague, chaired this session with five talks. Hereafter you will find the presentations given during this session:

• “Open Research Knowledge Graph” by Sören Auer, TIB
• “Blocking Methods for Entity Resolution on Knowledge Graphs” by Daniel Obraczka, Data Science Center ScaDS.AI Dresden/Leipzig (slides)
• “Validating SHACL Constraints with Reasoning: Lessons Learned from DBpedia” by Maribel Acosta, TUM School of Computation, Information and Technology
• “Exploiting Semi-Structured Information in Wikipedia for Knowledge Graph Construction” by Nicolas Heist, Data and Web Science Group, University of Mannheim (slides)
• “Using Pre-trained Language Models for Abstractive DBpedia Summarization” by Hamada Zahera, Data Science Group, Paderborn University (slides)

DBpedia Community session

Sebastian Hellmann, InfAI/DBpedia Association, hosted this year’s community session. DBpedia has had a major impact on data landscape during our 15-year journey. This session discussed the progress of the vision of a “Global and Unified Access to Knowledge Graphs”, which paved the way for an international FAIR Open Data Space driven by knowledge graphs. The session focused on the potential of large-scale knowledge graphs to reshape the open data domain. Topics included how the DBpedia community can pool its data, tools and know-how more effectively, and how we can make these assets more findable, accessible and interoperable. The session provided an insightful discourse on the future of open data and how we can forge strategic alliances across diverse industrial sectors.

Following, you find the presentations of this session: 

• “Update Japanese DBpedia” Hideaki Takeda, LODI (slides)
• Several impulses about different topics and follow-up discussion, moderated by Sebastian Hellmann, InfAI/DBpedia Association (discussion document)

In case you missed the event, all slides are also available on our event page. Further insights, feedback and photos about the event are available on Twitter via #DBpediaDay. 

We are now looking forward to more DBpedia events in the upcoming months and at next year’s SEMANTiCS Conference, which will be held in Amsterdam, Netherlands.  

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Maria & Julia

on behalf of the DBpedia Association

The post DBpedia Day in Leipzig @ SEMANTiCS 2023 appeared first on DBpedia Association.

For the 11th year in a row, we have been able to support and guide young, ambitious developers who joined us as an open source organization to work on a programming project over this summer. Each year we have been inspired by new project ideas, many amazing students, and mostly great project results that have shaped the future of DBpedia. One of the advantages of Google Summer of Code 2022 is, especially in times like these, the chance to work on projects remotely, but still obtain a first deep dive into Open Source projects like us – DBpedia. 

Meet our Google Summer of Code 2022 contributors and their projects

Throughout the summer program, our five finalists worked intensely on their challenging DBpedia projects with great outcomes to show to the public. Projects ranged from extending a neural extraction framework to enhancing DBpedia with image-based querying. If you want to have deeper insights into our GSoC contributer’s work you can find their blogs and repos in the following list. Check them out! 

• Neural Extraction Framework
• DEVELOPING A NEW DBPEDIA ABSTRACT EXTRACTOR
• Template Discovery for Neural Question Answering over DBpedia
• Enhancing DBpedia with image-based querying

We started out with five contributors that committed to GSoC projects. However, in the course of the summer, one dropped out and did not pass the final evaluation. In the end, we had four finalists that made it through the program. If you are interested in the project “Understanding and Optimizing DBpedia Question Answering through Explanations”, please check GitHub. 

Thanks to mentors

Thanks to all our mentors around the world for joining us in this endeavour, for mentoring with kindness and technical expertise. A huge shout out to those who have been by our side for so many years in a row. Thank you all again for spending over 3.5+ months working with this year’s GSoC contributors and helping them become better open source contributors!

Mentor Summit

During the previous years you might have noticed that we always organized a little lottery to decide which mentor or organization admin can join the annual GSoC mentor summit. As this year’s event will take place online, space is open to all organization admins and mentors alike. The Google Summer of Code 2022 Virtual Mentor Summit takes place on November 4, 2022 from about 8am – 12pm PT. This year we hope all our mentors will find the time to join and exchange with fellow mentors from around dozens of open source projects. 

After GSoC is before the next GSoC

We can not wait for the 2023 edition. Likewise, if you are an ambitious student who is interested in open source development and working with DBpedia you are more than welcome to either contribute your own project idea or apply for project ideas we offer starting in early 2023. If you would like to know where previous mentors and contributors are now working, please read our GSoC blog post about the last 10 years of DBpedia at GSoC. 

In case you like to mentor a project do not hesitate to also get in touch with us via dbpedia@infai.org. 

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Emma & Julia

on behalf of the DBpedia Association

The post Retrospective: Google Summer of Code 2022 appeared first on DBpedia Association.

First and foremost, we would like to thank the Institute for Applied Informatics for supporting our community and many thanks to the SEMANTiCS organization team for hosting this year’s DBpedia Day. 

Opening of the DBpedia Day

Also this year, our CEO Sebastian Hellmann opened DBpedia Day by presenting the Linkmaster 3000 project (slides). Afterwards, Olaf Harting from Linköping University gave his fantastic keynote presentation “Towards Querying Heterogeneous Federations of Interlinked Knowledge Graphs”. If you would like to get more insights, please find his slide deck here.

Member Presentation Session

Gavin Mendel Gleason, TerminusDB, started the DBpedia member presentation session with his presentation “TerminusCMS: the semantically aware & natively versioned content management system”. Shortly after, Susana López-Sola, GNOSS, talked about “Open GNOSS V.5.0: the platform for creating Semantic AI solutions. Everything is interlinked”. Next, Sotiris Karampatakis, Semantic Web Company, talked about “Using PoolParty to provide up-to-date vocabularies to CKAN data portals”. Followed by an online presentation by David Riccitelli, WordLift, presenting the “Making sense of your Knowledge Graph with Google DataStudio”. 

For further details of the presentations follow the links to the slides. 

• “TerminusCMS: the semantically aware & natively versioned content management system” by Gavin Mendel Gleason, TerminusDB (slides)
• “Open GNOSS V.5.0: the platform for creating Semantic AI solutions. Everything is interlinked.” by Susana López-Sola, GNOSS (slides)
• “Using PoolParty to provide up-to-date vocabularies to CKAN data portals.” by Sotiris Karampatakis, Semantic Web Company (slides)
• “Making sense of your Knowledge Graph with Google DataStudio” by David Riccitelli, WordLift (slides)

DBpedia Science: Linking and Consumption

This session was dedicated to the latest research on linking and using the DBpedia Knowledge Graph and beyond. New methods, tools and challenges around knowledge graph linking and usage were presented and discussed. Milan Dojchinovski (InfAI, CTU Prague) chaired this session with five talks. Hereafter you will find the presentations given during this session:

• “Know, Know Where, KnowWhereGraph” by Krzysztof Janowicz, University of Vienna (slides)
• “Fast Hubness-Reduced Nearest Neighbor Search for Entity Alignment in Knowledge Graphs” by Daniel Obraczka, Data Science Center ScaDS.AI Dresden/Leipzig (slides)
• “Open Research Knowledge Graph” by Vinodh Ilangovan, Leibniz Information Centre for Science and Technology (TIB) (slides)
• “Bootstrapping Knowledge Graphs using DBpedia’s Ecosytem – AKSW.org KG 2.0” by Marvin Hofer, Data Science Center ScaDS.AI Dresden/Leipzig (slides)
• “SDM-RDFizer” by Enrique Iglesias, L3S (slides)

DBpedia Community session

Sebastian Hellmann, InfAI/DBpedia Association, hosted this year’s DBpedia Community Session. Linking data has been heavily researched for decades. The main reason for its popularity is that linking is a necessary condition for use in the sense of discovery (follow links) and integration (use links for data fusion). This session focused on data from specific communities (e.g., national datasets, digital humanities, DBpedia language chapters) so that best practices for discovery, linking, and use can be derived. The three talks were dedicated to this topic.

Following, you find a list of all presentations of this session: 

• “Linking Linked Data – Useful Links” by Sebastian Hellmann, InfAI/DBpedia Association (slides)
• “DBpedia Databus – User-generated Data Catalogues” by Johannes Frey, InfAI/DBpedia Association 
• “Open Data Austria” by Brigitte Barotanyi, Federal Ministry of Labour and Economy (Austria) (slides)

In case you missed the event, all slides are also available on our event page. Further insights, feedback and photos about the event are available on Twitter via #DBpediaDay. 

We are now looking forward to more DBpedia events in the upcoming months and next year’s SEMANTiCS Conference, which will be held in Leipzig, Germany.  

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Emma & Julia

on behalf of the DBpedia Association

The post DBpedia Day in Vienna – Servus! appeared first on DBpedia Association.

Following, we will give you a brief retrospective about DBpedia @ the LSWT 2022 as well as the first DBpedia Knowledge Engineering PhD Symposium.

DBpedia @ the LSWT 2022

On Tuesday, 5th July, the Leipzig Semantic Web Day (LSWT) took place as part of the Data Week Leipzig. It was an opportunity for scientists, enterprises, and organizations to discuss topics in the field of Semantic Technology. These emphases are demonstrated in presentations by experts from industry and science.

As a part of the LSWT and the session “Data Acquisition and Data Sovereignty“ Sebastian Hellmann (AKSW, InfAI/DBpedia) presented „Linkmaster 3000. If it’s not linked, does it even exist?“. 

Later that day, Denis Streitmatter (AKSW, InfAI/DBpedia) gave his talk „Why we need Archivo“ as part of the session “Collaboration and Ontologies”.

1st DBpedia PhD Symposium

Wednesday, July 6th, was all about scientific exchange where junior and senior researchers establish relations and collaborations and exchange ideas. The goal of the event manifests a scientific community as a driver for DBpedia and Linked Data and expects synergies effects that will greatly improve scientific output by the involved community members.

To start the day, Sören Auer (TIB) opened the first PhD Symposium with words of welcome and by giving insights into his experience on “what makes a good PhD”.

The first session started with presentations by Aleksandr Perevalov on “Multilingual Accessibility of Knowledge Graph Question Answering Systems” and Johannes Frey on “Towards FAIR Linked Data Integration”. 

After a short coffee break, session 2 started with Marvin Hofer speaking about “Multilingual Accessibility of Knowledge Graph Question Answering Systems”. This was followed by the contribution of Fidan Limani “Bringing Research Artifacts (as closer) Together: Knowledge Graphs for Libraries”.

Afternoon Session

The last Session of the day was started by Gollam Rabby and his topic “Machine Learning on Semantic Scientific Knowledge” followed by Mehdi Azarafza and his presentation about “Distributed Approaches for Knowledge Representation and Reasoning on Geospatial Data”. Afterwards Mirza Mohtashim Alam was speaking about “Representation and Reinforcement Learning on Knowledge Graphs” and Paulo Ricardo Viviurka do Carmo closed the last session with his presentation on “Unsupervised Information Extraction from Academic Data Sources to Knowledge Graphs”. 

While the students held their presentations, they received feedback and on the other hand, the symposium participants gained insight 1) on how they structure and define their PhDs, 2) on what the current trends are and 3) on potential connecting a dedicated poster session where all PhD participants could bring their poster and discussed with the audience during the coffee breaks.

Closing

As the first DBpedia PhD Symposium came to an end, Sebastian Hellmann (AKSW, InfAI/DBpedia) and Milan Dojchinovski (DBpedia & CTU Prague) closed the meeting. Afterwards all participants were gathered for a city walking tour followed by the Living Lab Tour.

In case you missed the event, our presentations are available on the DBpeda event page. Further insights, feedback and photos about the event are available on Twitter (#DBpediaPhDSymposium hashtag).

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Julia & Emma

on behalf of the DBpedia Association

The post Wrap up Data Week Leipzig 2022 appeared first on DBpedia Association.

For the 11th year in a row, we have been accepted to be part of this incredible program to support young ambitious developers who want to work with open-source organizations like DBpedia. 

So far, each year has brought us new project ideas, many amazing students and great project results that shaped the future of DBpedia. Even though Covid-19 changed a lot in the world, it couldn’t shake Google Summer of Code (GSoC) much. The program, designed to mentor youngsters from afar is almost too perfect for us. One of the advantages of GSoC is, especially in times like these, the chance to work on projects remotely, but still obtain a first deep dive into Open Source projects like us.

DBpedia is now looking for contributors who want to work with us during the upcoming summer months.  

What is Google Summer of Code?

Google Summer of Code is a global program focused on bringing developers into open source software development. Funds will be given to all new beginner contributors to open source over 18 years to work for two and a half months (or longer) on a specific task. For GSoC-Newbies, this short video and the information provided on their website will explain all there is to know about GSoC2022.

And this is how it works …

Application Procedure

Further information on the application procedure is available in our DBpedia Guidelines. There you will find information on how to contact us and how to appropriately apply for GSoC2022. Please also note the official GSoC 2022 timeline for your proposal submission and make sure to submit on time. Unfortunately, extensions cannot be granted. Final submission deadline is April 19, 2022 at 18:00 UTC.

Contact

Detailed information on how to apply are available on the DBpedia website. We’ve prepared an information kit for you. Please find all necessary information regarding the student application procedure here.

And in case you still have questions, please do not hesitate to contact us via dbpedia@infai.org.

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Finally, we are looking forward to your contribution!

Yours DBpedia Association

The post GSoC2022 – Call for Contributors appeared first on DBpedia Association.

First and foremost, we would like to thank the Institute for Applied Informatics for supporting our community and many thanks to the VU University Amsterdam and the SEMANTiCS organisation team for hosting this year’s DBpedia Day.  

Opening of the DBpedia Day

Our CEO, Sebastian Hellmann, opened the DBpedia Day with an update about the DBpedia Databus and DBpedia members. He presented the huge and diverse network DBpedia has built up in the last 13 years. Afterwards, Maria-Esther Vidal, TIB, completed the opening session with her keynote “Enhancing Linked Data Trustability and Transparency through Knowledge-driven Data Ecosystems”. If you would like to get more insights, please find both slide decks here.  

Member Presentation Session 

Dennis Diefenbach, The QA Company, started the DBpedia member presentation session with his presentation “Question Answering over DBpedia”. Shortly after,  Luke Feeney and Gavin Mendel-Gleason, TerminusDB, promoted the implementation of a cloud data mesh with a Knowledge Graph. Next, Russa Biswas, FIZ, talked about “Entity Type Prediction in DBpedia using Neural Networks”. Followed by another remote presentation by Ricardo Alonso Maturana and Susana López, Gnoss, presenting the “Didactalia Encyclopaedia”. They demonstrated a chronological, compared and contextual perspective of enriched and linked entities. 

Afterwards, Antonia Donvito from FinScience explained how they use DBpedia Spotlight-a tool for automatically annotating mentions of DBpedia resources in text, providing a solution for linking unstructured information sources to the Linked Open Data cloud through DBpedia. Kathrin Dentler, Triply, talked about “Bringing linked data to the domain expert with TriplyDB data stories”. Closing the member session, Margaret Warren, ImageSnippets, presented “Anchoring Images to Meaning Using DBpedia” live via Zoom from Florida, U.S.      

For further details of the presentations follow the links to the slides. 

• “Question Answering over DBpedia” by Dennis Diefenbach, The QA Company (slides)
• Implementing a Cloud Data Mesh with a Knowledge Graph” by Luke Feeney and Gavin Mendel-Gleason, TerminusDB (slides)
• “Entity Type Prediction in DBpedia using Neural Networks” by Russa Biswas, FIZ Karlsruhe (slides)
• “Didactalia Encyclopaedia: a chronological, compared and contextual perspective of enriched and linked entities which presents a global view of human knowledge using semantic artificial intelligence” by Ricardo Alonso Maturana, GNOSS (slides)
• “DBpedia Spotlight @ FinScience: alternative data for fintech applications” by Antonia Donvito, FinScience (slides)
• “Bringing linked data to the domain expert with TriplyDB data stories” by Kathrin Dentler, Triply (slides)
• “Anchoring Images to Meaning Using DBpedia” by Margaret Warren, ImageSnippets (slides)

Ontology and NLP Sessions at the DBpedia Day

As a regular part of the DBpedia Community Meeting, we had two parallel sessions in the afternoon where DBpedians discussed most recent challenges in the context of DBpedia. Participants interested in NLP-related topics joined the NLP & DBpedia session. Milan Dojchinovski (InfAI, CTU Prague) chaired this session with four very stimulating talks. Hereafter you will find the presentations given during this session:

• “Zero-Shot Text Classification for Scholarly Data with DBpedia” by Fabian Hoppe, FIZ Karlsruhe (slides)
• “European network for Web-centred linguistic data science” by Jorge Gracia (University of Zaragoza) and Thierry Declerck, DFKI, Germany (slides)
• “Capturing the semantics of documentary evidence of humanities research” by Enrico Daga, KMi, The Open University, United Kingdom (slides)
• “NLP & DBpedia: Literature Review” by Artem Revenko, Semantic Web Company, Austria (slides)

At the same time, the DBpedia Ontology Session provided a platform for the community to discuss implementable criteria to evaluate ontologies, especially the ontology archive DBpedia Archivo. Hereafter you will find all presentations given during this session: 

• “Introduction & Motivation” by Sebastian Hellmann, InfAI/DBpedia (slides)
• “Exploiting Semantic Knowledge Graphs to enable data integration and interoperability within the Agrifood sector” by Monika Solanki, Agrimetrics (slides)
• “DBpedia Archivo” by Denis Streitmatter, InfAI/AKSW (slides)
• “FOOPS! An Ontology Pitfall Scanner for the FAIR principles” by Daniel Garijo, UPM (slides)

Diversity of DBpedia – The DBpedia Language Chapters

This year’s DBpedia Day also covered a special chapter session, chaired by Enno Meijers, KB and Dutch DBpedia Language Chapter. Two speakers presented the latest technical and organizational developments of their respective chapters. Furthermore, Johannes Frey showcased the Dutch National Knowledge Graph (DNKG). During the DBpedia Autumn Hackathon 2020 the DBpedia team worked together with a group of Dutch organizations to explore the feasibility of building a DNKG. The knowledge graph was built from a number of authoritative datasets using the DBpedia Databus approach. 

Following, you find a list of all presentations of this session: 

• “Latest enhancements in the Spanish DBpedia” by Mariano Rico, Technical University of Madrid (UPM) (slides)
• “Creating the Hungarian DBpedia using the Databus” by Andras Micsik, SZTAKI (slides)
• “Dutch National Knowledge Graph pilot” by Johannes Frey, InfAI/DBpedia Association) (slides)
• Discussion about the future of the local DBpedia chapters lead by Enno Meijers

In this DBpedia chapter session we had a closer look at the results of the DNKG pilot. Furthermore, two DBpedia language chapters (Spanish and Hungarian) presented current developments and research results. Closing this session, Enno Meijers led a discussion about the opportunities of the DBpedia Databus for creating local chapters and building (national) knowledge graphs in general.

Summing up, the DBpedia Day at the SEMANTiCS conference brought together more than 100 DBpedia enthusiasts from Europe who engaged in vital discussions about Linked Data, the DBpedia archivo as well as DBpedia use cases and services.

In case you missed the event, all slides are also available on our event page. Further insights, feedback and photos about the event are available on Twitter via #DBpediaDay. 

We are now looking forward to more DBpedia meetings in the next year. DBpedia will be part of the Connected Data World taking place online on December 1–3, 2021. We will organize a masterclass.

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Julia

on behalf of the DBpedia Association

The post DBpedia Day – Hallo Gemeenschap! appeared first on DBpedia Association.

First and foremost, we would like to thank the LSWT organizing team for hosting these events. Following, we will give you a brief retrospective about the presentations. For further details of the tutorial follow the link to the slides.

Talks at the LSWT 

Opening

Nathanael Arndt (AKSW / InfAI) opened the third session of the LSWT 2021 with a few welcoming words and information about the programme schedule.

Updates DBpedia: Stable Releases

Afterwards, Marvin Hofer (InfAI / DBpedia Association) spoke about the Milestones of the DBpedia Association before presenting the three major DBpedia editions – Latest core, DBpedia Global & DBpedia Live. 

Latest Core and Tiny Diamond

Marvin explained the differences between the latest core dataset and the snapshot edition – Tiny Diamond. The latest core data is online for 1 year and gets monthly updates of its contained dataset. It contains community extensions, developer debugging as well as rapid community reviewing. The DBpedia snapshot release is the same kind of data as the Latest core, contains the main content of DBpedia and is more stable and consistent. The next snapshot release will be published by end of July 2021. Check more details here. 

DBpedia Global

Furthermore, Marvin introduced DBpedia Global, a more powerful kernel for LOD Cloud Knowledge Graph that ultimately strengthens the utility of Linked Data principles by adding more decentralization i.e., broadening the scope of Linked Data associated with DBpedia. It was released in June 2021 and you can read more details on the DBpedia blog. Finally, Marvin demonstrated that DBpedia Global can be used very visually with an example of Erich Schröger. To get more information feel free to check out the presentation here.

DBpedia Archivo

Following, Dennis Streitmatter (InfAI / DBpedia Association) explained how DBpedia Archivo can be used, especially in order of ontology FAIRness which aims to improve (re)usability. Therefore, he presented ways to find an ontology, how to access ontologies via an API, how to interoperate an ontology and how to reuse it. Speaking about interoperable ontologies, he also showed the star rating system, which is testing parsing, license and consistency for the ontologies usability. To get more information about DBpedia Archivo feel free to check out the presentation here. 

DBpedia Live 2.0

As the last part of the session, Alex Winter (InfAI / DBpedia Association) and Maximilian Ressel (InfAI / DBpedia Association) presented DBpedia Live 2.0 which is a cool new API and is more flexible and usable than the recent DBpedia Live version. The goal of the project is to have an always up-to-date DBpedia Knowledge Graph. It started at the beginning of 2021 and it is only available in German and English, although they will adopt more languages. For the future they aim to find early adopters and gain first customers to further improve the service so it can be even more usable. To get more information about DBpedia Live, please go to the DBpedia website or check out the presentation here.

Outro

At the very end Nathanael closed the LSWT 2021 with some thank you words to all presentators, the audience as well as the co-organisators. The next LSWT will be part of a bigger event – the Data Week – which will also include a special DBpedia event. Stay tuned!

DBpedia Tech Tutorial @ LSWT 2021 on July 8

Opening

Jan Forberg (InfAI / DBpedia Association) opened the online tutorial with some general information about the program of the tutorial, the scope and the technical information.

DBpedia in a Nutshell and Getting Started with DBpedia sessions

After the opening, Jan continued with the first topic, the background on the DBpedia Association – how it all started and the evolution of DBpedia. The DBpedia Ontology was also addressed as well as the mappings, extractors and data groups (e.g. mappings, generic, text, wikidata). Jan concluded the first topic with information on the DBpedia Knowledge Graph Diamonds.

Getting Started with DBpedia session

In addition, Jan explained where to find data including DBpedia SPARQL endpoint, the DBpedia Databus platform as a repository for DBpedia and related datasets and the novel “collections” concept. Furthermore he demonstrated how to use the DBpedia data and the DBpedia Knowledge Graph.

DBpedia Technology Stack

Fabian Götz (InfAI / DBpedia Association) opened the session with a talk about the DBpedia Databus platform. He explicated how the Databus platform works, the Databus SPARQL endpoints and the Web API as well as the Maven Plugin. After that, he presented dockersized services including DBpedia Virtuoso and the DBpedia Plugin, DBpedia Spotlight (incl. use cases) and DBpedia Lookup.

Afterwards, Marvin Hofer (InfAI / DBpedia Association) explained the DBpedia release process on the Databus and showed his work on debugging DBpedia and the DBpedia Mods technology. He also demonstrated the quality assurance process using the concept of  minidumps. Furthermore, the topics (Pre)fusion, ID management and the novel concept of cartridges were explained by him.

Subsequently, Denis Streitmatter (InfAI / DBpedia Association) presented the DBpedia Archivo ontology manager and how to include ontologies here. He showed various use cases, e.g. how to find ontology, how to test your ontology and how to back it up. Then he shared the ontology tests 4 star schema and the SHACL based tests for ontologies with the audience. Please read the official DBpedia Archivo call here.

Contributions to DBpedia and Outro

As it got to the end of the tutorial, Denis Streitmatter (InfAI / DBpedia Association) explained how to improve mappings or introduce new mappings. He talked about improvement of the DBpedia Information Extraction Framework as well as contributing to DBpedia tests. Afterwards, Marvin Hofer presented how to contribute to DBpedia by writing SHACL tests or by editing mappings. Finally, Jan Forberg closed the meeting by taking questions from the audience. 

In case you missed the tutorial, our presentation is also available here. Further insights, feedback and photos about the event are available on Twitter (#DBpediaTutorial).

We are now looking forward to the next DBpedia tutorial, which will be held on September 1, 2021 co-located with the LDK conference in Zaragoza, Spain. Check more details here and register now! Furthermore, we will organize the DBpedia Day on September 9, 2021 at the Semantics Conference in Amsterdam. We are looking forward to meeting all Dutch DBpedians there! 

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Julia & Emma

on behalf of the DBpedia Association

The post LSWT 2021 – Wrap Up: DBpedia Talks and Tech Tutorial appeared first on DBpedia Association.

Following, we will give you a brief retrospective about the presentations. For further details of the presentations follow the link to the slides.

Opening

The tutorial which was held online was opened by Milan Dojchinovski (InfAI / DBpedia Association /  CTU in Prague) with some general information about the program of the tutorial, the scope and the technical information.

DBpedia in a Nutshell session

After the short opening, Milan continued with the first topic, the background on the DBpedia Association – how it all started and the evolution of DBpedia. Linked Data and the LOD cloud were also addressed as well as the mappings, extractors and data groups (e.g. mappings, generic, text, wikidata). Then Ontology was presented and explained. Milan concluded the first topic with information on the DBpedia SPARQL endpoint and DBpedia Databus platform.

Getting Started with DBpedia session

The next point on the program was split into two subtopics. First of all, Jan Forberg (InfAI / DBpedia Association) explained where to find data including DBpedia SPARQL endpoint, the DBpedia Databus platform as a repository for DBpedia and related datasets and the novel “collections” concept. Moreover, the DBpedia services such as DBpedia Lookup and DBpedia Spotlight were presented.

Afterwards Jan explained how to use the data hosted on the Databus. Starting by selecting particular artifacts, he explained the Docker container where data can be downloaded and a simple bash script to submit SPARQL and retrieve specific data artifacts.

Building National Knowledge Graphs using DBpedia Tech

In the following session, Johannes Frey (InfAI / DBpedia Association) explied how to build national knowledge graphs using DBpedia Tech. The use case of the Dutch National Knowledge Graph was explained as an example. The Dutch National Knowledge Graph was presented during the DBpedia Hackathon 2020. For further information feel free to have a look at the presentations of the Hackathon 2020 here https://tinyurl.com/kgia-2020-dnkg.  Please also see all relevant data here https://databus.dbpedia.org/dnkg/fusion/dutch-national-kg/. 

DBpedia Technology Stack

Talking about DBpedia Technology Stack, Jan started with the DBpedia Databus platform. He explained how the Databus platform works, the benefits (DatalDs and Simple Retrieval), the Databus SPARQL endpoints and the Web API and Maven Plugin. After that, Jan presented the Dockersized Services including DBpedia Virtuoso and DBpedia Plugin, DBpedia Spotlight (incl. use cases) and DBpedia Lookup.

Marvin Hofer (InfAI / DBpedia Association) then explained the DBpedia release process on the Databus and presented his work on debugging DBpedia and the DBpedia Mods technology. Marvin also explained the quality assurance process using the concept of  minidumps.

Afterwards, Johannes explained (Pre)fusion, ID management and the novel concept of cartridges.

Subsequently, Denis Streitmatter (InfAI / DBpedia Association) presented the DBpedia Archivo ontology manager and how to include your ontology here. He also explained various  use cases, e.g. how to find ontology, how to test your ontology and how to back it up. Then he presented the ontology tests 5 star schema and the SHACL based tests for ontologies. Please read the official DBpedia Archivo call here https://www.dbpedia.org/blog/dbpedia-archivo-call-to-improve-the-web-of-ontologies/. 

Contributions to DBpedia

As it got to the end of the tutorial, Milan explained how to improve mappings or introduce new mappings. He talked about improvement of the DBpedia Information Extraction Framework as well as contributing DBpedia tests. Then he explained about contributing mappings and links for knowledge cartridges and how to write Mods for the Databus.

In case you missed the event, our presentation is also available on the DBpeda event page. Further insights, feedback and photos about the event are available on Twitter (#DBpediaTutorial hashtag).

We are now looking forward to the next DBpedia tutorial, which will be held on September 1, 2021 co-located with the LDK conference in Zaragoza, Spain. Check more details here and register now! Furthermore, we will organize the DBpedia Day on September 9, 2021 at the Semantics Conference in Amsterdam. We are looking forward to meeting all Dutch DBpedians there! 

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Yours DBpedia Association

The post Wrap Up: DBpedia Tech Tutorial @ Knowledge Graph Conference 2021 appeared first on DBpedia Association.

For the 10th year in a row, we have been accepted to be part of this incredible program to support young ambitious developers who want to work with open-source organizations like DBpedia. 

So far, each year has brought us new project ideas, many amazing students and great project results that shaped the future of DBpedia. Even though Covid-19 changed a lot in the world, it couldn’t shake Google Summer of Code (GSoC) much. The program, designed to mentor youngsters from afar is almost too perfect for us. One of the advantages of GSoC is, especially in times like these, the chance to work on projects remotely, but still obtain a first deep dive into Open Source projects like us . 

DBpedia is now looking for students who want to work with us during the upcoming summer months.  

What is Google Summer of Code?

Google Summer of Code is a global program focused on bringing student developers into open source software development. Funds will be given to students (BSc, MSc, PhD.) to work for two and a half months on a specific task. For GSoC-Newbies, this short video and the information provided on their website will explain all there is to know about GSoC2021.

And this is how it works …

Application Procedure

Further information on the application procedure is available in our DBpedia Guidelines. There you will find information on how to contact us and how to appropriately apply for GSoC2021. Please also note the official GSoC 2020 timeline for your proposal submission and make sure to submit on time.  Unfortunately, extensions cannot be granted. Final submission deadline is April 13, 2021 at 8 pm, CEST.

Contact

Detailed information on how to apply are available on the DBpedia Website. We’ve prepared an information kit for you. Please find all necessary information regarding the student application procedure here.

And in case you still have questions, please do not hesitate to contact us via dbpedia@infai.org.

Stay safe and check Twitter or LinkedIn. Furthermore, you can subscribe to our Newsletter for the latest news and information around DBpedia.

Finally, we are looking forward to your contribution!

Yours DBpedia Association

The post GSoC2021 – Call for Students appeared first on DBpedia Association.

This new event is a combination of two already existing ones: the DBpedia Community Meeting, which is regularly held as part of the SEMANTiCS, and the annual Spatial Linked Data conference organised by EuroSDR and the Platform Linked Data Nederland. We fused both together and as a bonus, we added a track about Geo-information Integration hosted by EuroSDR. For the joint opening session, we recruited four amazing keynote speakers to kick the event off.    

Highlights of the Knowledge Graph in Action event

– Hackathon (starts 2 weeks earlier)

– Keynote by Carsten Hoyer-Click, German Aerospace Center

– Keynote by Marinos Kavouras, National Technical University of Athens

– Keynote by Peter Mooney, Maynooth University

– Spatial Linked Data Country Session

– DBpedia Chapter Session

– Self Service GIS Session

– DBpedia Showcase Session

Quick Facts

– Web URL: https://wiki.dbpedia.org/meetings/KnowledgeGraphsInAction

– When: October 6, 2020

– Where: The conference will take place fully online.

Schedule

– Please check the schedule for the upcoming Knowledge Graphs in Action event here: https://wiki.dbpedia.org/meetings/KnowledgeGraphsInAction  

Registration 

– Attending the conference is free. Registration is required though. Please get in touch with us if you have any problems during the registration stage. Register here to be part of the meeting: https://wiki.dbpedia.org/meetings/KnowledgeGraphsInAction 

Organisation

– Benedicte Bucher, University Gustave Eiffel, IGN, EuroSDR

– Erwin Folmer, Kadaster, University of Twente, Platform Linked Data Netherlands

– Rob Lemmens, University of Twente

– Sebastian Hellmann, AKSW/KILT, DBpedia Association

– Julia Holze, DBpedia Association

Don’t think twice and register now! Join the Knowledge Graph in Action event on October 6, 2020 to catch up with the latest research results and developments in the Semantic Web Community. Register here and meet us and other SEMANTiCS enthusiasts.

For latest news and updates check Twitter, LinkedIn, the DBpedia blog and our Website or subscribe to our newsletter.

We are looking forward to meeting you online!

Julia

on behalf of the DBpedia Association

The post ‘Knowledge Graphs in Action’ online event on Oct 6, 2020 appeared first on DBpedia Association.