Introduction to graph-based knowledge representation for LLMs
Graph-based knowledge representation allows complex relationships to be encoded between concepts and facts, which can significantly enhance the contextual understanding of LLMs. In a graph, nodes represent entities, and edges represent relationships between them.

Figure 27.1 – Graph-based knowledge representation for LLMs
The following are the key benefits of graph-based knowledge for LLMs:
- Captures complex relationships
- Enables multi-hop reasoning
- Provides structured context for generation
- Facilitates domain-specific knowledge integration
Let’s start by implementing a simple graph structure:
from typing import Dict, List, Tuple class KnowledgeGraph: def __init__(self): self.nodes: Dict[str, Dict] = {} self.edges: Dict[str, List[Tuple...