Add dataset card

README.md

@@ -0,0 +1,57 @@
+---
+language:
+- en
+license: mit
+library_name: ladybug
+pretty_name: Small Knowledge Graphs (small-kgs)
+size_categories:
+- n<1K
+tags:
+- graph
+- knowledge-graph
+- ladybug
+---
+
+# Small Knowledge Graphs (small-kgs)
+
+A collection of small knowledge graphs in multiple formats for graph ML research and development.
+
+## Dataset Structure
+
+This dataset contains knowledge graphs in three formats:
+
+### graph-std
+Compressed Sparse Row (CSR) graph format with parquet files containing:
+- Node data (persons, organizations, events, concepts, places, knowledge graphs)
+- Edge indices and indirection pointers
+- Node/edge type mappings
+- Schema definition
+
+### duckdb
+DuckDB database format for efficient analytical queries on graph data.
+
+### lbdb
+LadybugDB format for graph database operations using the LadybugDB embedded graph database.
+
+## Usage
+
+```python
+from datasets import load_dataset
+
+# Load graph-std version
+dataset = load_dataset("ladybugdb/small-kgs", name="graph-std")
+
+# Load duckdb version  
+dataset = load_dataset("ladybugdb/small-kgs", name="duckdb")
+
+# Load lbdb version
+dataset = load_dataset("ladybugdb/small-kgs", name="lbdb")
+```
+
+## Contents
+
+| Version | File | Size |
+|---------|------|------|
+| graph-std | csr_graph_*.parquet | ~200KB |
+| duckdb | kg_history.duckdb | ~5MB |
+| lbdb | kg_history.lbdb | ~8MB |