CfP: Deadline Extension for Challenges Proposals at ISWC 2025 (March 4)

24th International Semantic Web Conference (ISWC 2025)
Nara, Japan
November 2-6, 2025

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A great way to advance the state of the art in a given domain is to create competition. We invite you to propose an ISWC 2025 Challenge, in which you define an open competition on a problem of your choice within the Semantic Web domain.

Topics:
For ISWC 2025, Challenge proposals are invited for any challenge involving Semantic Web tasks, including but not limited to:
- Ontology and knowledge graph alignment
- Ontology and knowledge graph quality assurance (QA)
- Knowledge graph construction and refinement
- Graph embeddings and graph neural networks
- Query and reasoning scalability
- Open information extraction
- Neurosymbolic reasoning
- Semantic Web and data mining
- Semantic Web, machine learning, and neuro-symbolic AI
- Link prediction
- Question answering
- Stream processing and reasoning
- Semantic table understanding
- Agents (especially using neuro-symbolic methods) and agentic workflows
- Retrieval Augmented Generation (RAG)

Proposal Stage:
ISWC 2025 will run multiple challenges with the aim of evaluating and comparing software solutions for the Semantic Web and Knowledge Graphs in a systematic way. To propose a challenge, you are required to:
- Specify a task to be addressed.
- Provide an evaluation dataset.
- Define evaluation measures to compare the performance of participating systems.

Important Date:
Challenge proposal submission due March 4th, 2025

Website: https://iswc2025.semanticweb.org/#/calls/challenges

Semantic Web Challenge Chairs:
Contact: iswc2025-challenge@easychair.org

Mayank Kejriwal
University of Southern California, United States

Pablo Mendes
Upwork, United States

Would you like to know about the host city, Nara? Check out this blog: https://iswc2025.semanticweb.org/#/blogs/host