Evaluation for hydrologykg
Evaluator: Automated Evaluation
Evaluated on: 2026-01-06
⚠️ Automated Evaluation: This evaluation was generated automatically using an AI-based system. It is distinct from manual evaluations curated by human experts. Please review findings carefully and report any inaccuracies.
Evaluation Criteria: This evaluation uses the KG-Registry evaluation rubric as described in Cortes et al. (2025) . The rubric assesses knowledge graphs across multiple dimensions including access, provenance, documentation, maintenance, and fitness for purpose.
Access Level and Types
| Question | Answer | Comment |
|---|---|---|
| Access to data outside of the knowledge graph | Y | SAWGraph Hydrology KG SPARQL endpoint at frink.apps.renci.org/hydrologykg/sparql for querying hydrological data |
| API or online access to the knowledge graph | N | SPARQL only; no REST API or web portal interface documented |
| Multiple access options available | N | Single SPARQL access method; no web UI, downloads, or alternative access mechanisms |
| Source code availability | N | No public source code repository found; KG construction methodology not openly available |
| Downloadable knowledge graph | N | No bulk download option; SPARQL queries required for data extraction |
Section Score: 1/5
Provenance of Nodes and Edges
| Question | Answer | Comment |
|---|---|---|
| Source list provided | Y | Data from SAWGraph project combining hydrological systems data; sources documented in project |
| Source versions information | N | No versioning information for upstream hydrological data sources |
| Import dependencies | Y | SAWGraph framework integration apparent but detailed dependencies not documented |
| Node and edge sources | Y | Hydrological relationships defined but mapping to source publications unclear |
| Edges deduplication | N | No documentation of deduplication for overlapping hydrological feature relationships |
| Triples source details | N | RDF schema not formally documented or published |
| Edge type schema | N | Hydrological relationship types not mapped to standard ontologies |
Section Score: 3/7
Documented standards, schema, construction
| Question | Answer | Comment |
|---|---|---|
| Biological usable data | Y | Hydrological data directly applicable to water resource management and environmental science |
| Resolvable IDs | N | Identifiers may not be resolvable outside the SPARQL endpoint; no external identifier mapping documented |
| Construction documentation | N | KG construction methodology not publicly documented |
| Transformation documentation | N | Data transformation and integration steps not transparent |
| Schema used | N | RDF schema and ontology choices not published or documented |
Section Score: 1/5
Update frequency and versioning
| Question | Answer | Comment |
|---|---|---|
| Stable versions | N | No formal versioning scheme; continuous updates without released stable versions |
| Public tracker information | N | No public issue tracker or development roadmap visible |
| Knowledge graph contact information | Y | Contact Torsten Hahmann (torsten.hahmann@maine.edu) available via resource metadata |
| Updated annually | N | Update frequency and schedule not documented |
| Prior versions access | N | No version history or archived snapshots available |
Section Score: 1/5
Evaluation - Metrics and Fitness for Purpose
| Question | Answer | Comment |
|---|---|---|
| Use case provided | Y | Use cases in hydrological systems modeling and water resource management |
| Evaluation against other models | N | No comparison with other hydrological knowledge graphs or databases |
| Defined scope | Y | Focused on SAWGraph hydrological system data |
| Multiple evaluation methods | N | No validation against ground truth or independent datasets |
| Accuracy metrics | N | No accuracy, completeness, or coverage metrics reported |
Section Score: 2/5
License Information
| Question | Answer | Comment |
|---|---|---|
| License |