Sijin Cheng (@sijin_cheng) 's Twitter Profile
Sijin Cheng

@sijin_cheng

PhD of computer science from @liusemweb @liu_universitet. Knowledge Graphs & Semantic Web

ID: 940162037539319809

calendar_today11-12-2017 10:11:11

42 Tweet

222 Followers

520 Following

International Semantic Web Conference (@iswc_conf) 's Twitter Profile Photo

Sijin Cheng gives a presentation on Source Selection for SPARQL Endpoints: Fit for Heterogeneous Federations of RDF Data Sources? #iswc_conf #iswc2022

Sijin Cheng gives a presentation on Source Selection for SPARQL Endpoints: Fit for Heterogeneous Federations of RDF Data Sources?
#iswc_conf #iswc2022
LiU Semantic Web (@liusemweb) 's Twitter Profile Photo

Huge congratulations to our Patrick Lambrix (Patrick Lambrix) for being honored as the "Remarkable Citizen 2022" of his home town Tongenaar, Belgium (stad Tongeren)! 🎉 🎉🎉 We are happy to have you at Linköpings universitet!!

Sijin Cheng (@sijin_cheng) 's Twitter Profile Photo

Many thanks to my supervisors Olaf Hartig and Patrick Lambrix for continuously giving me encouragement and support. Special thanks to Katja Hose as the opponent for raising great questions and discussions. Of course, I am just halfway through my PhD journey, keep going …

Olaf Hartig (@olafhartig) 's Twitter Profile Photo

There is a lot of research on establishing mappings between different ontologies, but hardly any work on how to leverage such mappings in a query federation engine. With Sijin Cheng and Seba Ferrada, we have embarked on changing that. Paper at CoopIS 2023 olafhartig.de/files/ChengEtA…

Katja Hose (@hosekatja) 's Twitter Profile Photo

Adiós, Málaga! And a big thank you to all participants and organizers of the COST Action meeting on #DistributedKnowledgeGraphs for 2 days full of inspiring discussions. cost.eu/actions/CA1913… COST Action Distributed Knowledge Graphs

Adiós, Málaga!
And a big thank you to all participants and organizers of the COST Action meeting on #DistributedKnowledgeGraphs for 2 days full of inspiring discussions.
cost.eu/actions/CA1913…
<a href="/cost_dkg/">COST Action Distributed Knowledge Graphs</a>
Sijin Cheng (@sijin_cheng) 's Twitter Profile Photo

It’s a great honor that Seba Ferrada, Olaf Hartig and I have received the Best Paper Award at CoopIS 2023 for our paper titled “Considering Vocabulary Mappings in Query Plans for Federations of RDF Data Sources.” Find the paper at: ida.liu.se/~sijch63/files…

It’s a great honor that <a href="/ferradest/">Seba Ferrada</a>,  <a href="/olafhartig/">Olaf Hartig</a> and I have received the Best Paper Award at <a href="/CoopIS2023/">CoopIS 2023</a> for our paper titled “Considering Vocabulary Mappings in Query Plans for Federations of RDF Data Sources.” 

Find the paper at:
ida.liu.se/~sijch63/files…
Huanyu Li (@huanyuli1) 's Twitter Profile Photo

Our paper "Ontology-Based GraphQL Server Generation for Data Access and Data Integration" just got "Accept" at Semantic Web Journal Semantic Web Journal, together with Olaf Hartig, @ArmientoRickard and Patrick Lambrix. 🥂🥂 LiU Semantic Web ▶️ ida.liu.se/~huali50/paper…

Our paper "Ontology-Based GraphQL Server Generation for Data Access and Data Integration" just got "Accept" at Semantic Web Journal <a href="/SW_Journal/">Semantic Web Journal</a>, together with <a href="/olafhartig/">Olaf Hartig</a>, @ArmientoRickard and <a href="/LiuPatla/">Patrick Lambrix</a>. 🥂🥂
<a href="/liusemweb/">LiU Semantic Web</a>
▶️ ida.liu.se/~huali50/paper…
Frank van Harmelen (@frankvanharmele) 's Twitter Profile Photo

A course on Knowledge Graphs is nothing new, but a course on Knowledge Graphs from this set of teachers is an interesting signal. GenAI is rapidly becoming the best motivation for symbolic AI in a long time!

Huanyu Li (@huanyuli1) 's Twitter Profile Photo

Dear colleagues, please share our call for papers from SeMats workshop which will be co-located with the 20th SEMANTiCs conference in Amsterdam, September 17-19, 2024. ▶️sites.google.com/view/semanticm…

LiU E-Press (@liu_epress) 's Twitter Profile Photo

Ph.D. defence this week: Sijin Cheng, Query Processing over Heterogeneous Federations of Graph Data Thursday 23 May, 08:30 in Ada Lovelace, B Building, Campus Valla, Linköping urn.kb.se/resolve?urn=ur… #LiU

Ph.D. defence this week: Sijin Cheng, Query Processing over Heterogeneous Federations of Graph Data Thursday 23 May, 08:30 in Ada Lovelace, B Building, Campus Valla, Linköping  urn.kb.se/resolve?urn=ur… #LiU
Olaf Hartig (@olafhartig) 's Twitter Profile Photo

LiU Semantic Web Sijin Cheng Linköpings universitet LiU IDA The opponent, Andreas Harth (Andreas Harth), has clearly worked with the material. Thanks Andreas! And thanks a lot as well to the examination committee, Maria-Esther Vidal, Graham Kemp, and Zheng Chen.

<a href="/liusemweb/">LiU Semantic Web</a> <a href="/Sijin_Cheng/">Sijin Cheng</a> <a href="/liu_universitet/">Linköpings universitet</a> <a href="/LiU_IDA1983/">LiU IDA</a> The opponent, Andreas Harth (<a href="/aharth/">Andreas Harth</a>), has clearly worked with the material. Thanks Andreas! And thanks a lot as well to the examination committee, Maria-Esther Vidal, Graham Kemp, and Zheng Chen.
Olaf Hartig (@olafhartig) 's Twitter Profile Photo

RDF & SPARQL folks! Here 👇🏻 is an example of the current standard approach to capture basic composite values such as lists in RDF. Have you tried querying such "lists" in SPARQL? Even manipulating them? It's painful!! We 🔱 will propose a new solution at ESWC Conferences. Stay tuned!

RDF &amp; SPARQL folks!
Here 👇🏻 is an example of the current standard approach to capture basic composite values such as lists in RDF.

Have you tried querying such "lists" in SPARQL? Even manipulating them? It's painful!!

We 🔱 will propose a new solution at <a href="/eswc_conf/">ESWC Conferences</a>. Stay tuned!