Track B
Ground
What does the system know, and how do we prove where it came from?
The knowledge graph is a provenance and governance layer, not only a retrieval technique.
Why it matters
If the system cannot show where a fact came from, it cannot be audited.
Directions
1. Corroboration-gated graph construction.
Corroboration-gated graph construction.
2. Selective graph pruning for constrained devices.
Selective graph pruning for constrained devices.
3. GraphRAG versus vector RAG compared on quality per watt and per euro.
GraphRAG versus vector RAG compared on quality per watt and per euro.
4. Temporal and versioned memory with contradiction detection.
Temporal and versioned memory with contradiction detection.
5. Policy as graph.
Policy as graph.
Provenance graph (illustration)
Illustration of an invoice, line item and supplier, each tied to evidence sources with a corroboration badge. Example data only.
Select a node to see its linked evidence. Illustration only.
Select a node to see its linked evidence. Illustration only.
View as table
| From | To |
|---|---|
| Invoice | Line item |
| Line item | Supplier |
| PDF extract | Invoice |
| Master data | Supplier |
Planned metrics
Values show Pending until measurements exist.
Provenance coverage
Pending
Share of graph assertions with a recorded source
Contradiction rate
Pending
Share of facts that conflict with another recorded fact
Update cost
Pending
Compute and time to ingest a document update into the graph
Answer accuracy per unit of graph size
Pending
Answer quality relative to stored graph size
Connects to
The lab designs and studies five research objects. They are planned artifacts on the agenda, not products with published measurements.
Work with HOPN Lab
Enterprise buyers, academic collaborators, students and funders in Europe can write to us.