DGLink

DGLink introduces semantic interoperability within data portals through automated metadata extraction and knowledge graph construction. DGLink connects data semantically within a data portal and maps data to external knowledge to enable knowledge-driven data interpretation and discovery.

Structure

1. scripts - Scripts for recreating KG and artifacts
2. examples - Example code, so far just the original proof of concept not using the package.
3. dglink/core - Core DGLink code, applicable for all portals.
4. dglink/portals - Portal specific code.
5. dglink/applications - Applications of KGs constructed with DGLink.
   1. dglink/applications/semantic_search - bring up web UI for semantic searching on the KG (see instructions bellow)
   2. dglink/applications/project_similarity - Leverage KG embedding methods for accessing project similarity (need to install additional dependencies with) uv pip install ".[graph_embedding]"
6. dglink/resources - data and container for brining up the Neo4j instance.

Steps for running semantic search UI

1. Go into the semantic search directory with cd dglink/applications/semantic_search
2. Bring up the service (and build images if required with) docker-compose up --build
3. Connect to the services.
   • semantic search UI http://localhost:5000/
   • neo4j browser http://localhost:7474/browser/