Landing Page
Features
🔍 Search Bar
The search bar is the main way to explore the Knowledge Graph. It sits at the centre of the page and lets you search across all available content.
- Search field — Type any keyword, topic, or resource name to get started.
- Category filter (dropdown) — To the left of the search field, a dropdown labelled "All" lets you narrow your search to a specific type of content category before you search.
- Search button — Click the teal magnifying glass icon to run your search.
🎲 "Show Me Something Interesting"
Below the search bar, there is a button labelled "show me something interesting".
Clicking this will surface a random or highlighted item from the Knowledge Graph — a great way to explore if you are not sure where to start.
📋 Information Cards
Below the hero section, the page displays three information cards that explain what the platform offers:
| Card | What it covers |
|---|---|
| About the Knowledge Graph | Explains the mission of HelmholtzKG — strengthening metadata quality, data findability, visibility, and reuse across the Helmholtz Association. Includes a link to learn more. |
| Organizing Principles | Describes how digital assets are structured into semantic categories, and how the search interface helps you explore connections. Links to the underlying documentation. |
| Access the Full Dataset | Explains how to query the complete Knowledge Graph using SPARQL endpoints. Directs you to QLever for high-performance queries or Virtuoso for advanced SPARQL features. |
Each card has an arrow link (→) to take you to more detailed information.
🔗 Quick Access Links
To the right of the information cards, four quick-access buttons are available:
- QLever SPARQL — Launch the QLever interface to run high-performance SPARQL queries.
- Virtuoso SPARQL — Access the Virtuoso endpoint for advanced query features.
- Source Code — View the source code repository (links to GitLab).
- Documentation — Open the platform documentation.
Getting Started
If you are new to the platform, here are a few suggested first steps:
- Use the search bar to look up a dataset, tool, or research topic you are interested in.
- Try the category filter to narrow results to a specific type of content.
- Click "show me something interesting" to browse the Knowledge Graph without a specific goal in mind.
- Read the information cards to understand how data is organised and how to access the full dataset.
- Use the quick access links if you want to run SPARQL queries or explore the documentation directly.
