Semantic Learning Architecture

Agentic Knowledge Retrieval.

Standard vector search retrieves documents based on keyword similarity—which fails when answers require multi-hop reasoning. We engineer intent-aware retrieval engines backed by Neo4j, allowing your AI to autonomously navigate relationships to surface exact answers.

Navigating Relationships, Not Keywords

The Vector Search
Illusion.

If an analyst asks, "Which logistics contracts are exposed to the new tariff?" or a student asks, "Why do I use 'ser' instead of 'estar' here?", a vector database simply returns paragraphs containing those words.

Graph-backed RAG is different. Our Planner Agents write dynamic queries to traverse the graph, connecting contracts to suppliers, or native grammar to target concepts, delivering precise, explainable context.

retrieval_comparison
// Query: "Explain the Japanese 'Te-form' to User_8472."
Standard_Vector_RAG (Pinecone)

> Searching embeddings for keywords...

[Error] Retrieved generic definition. High cognitive load.

Agentic_Graph_RAG (AI Engine)

> [Query_Planner]: Deconstructing intent... Target = User_8472.

> [Graph_Agent]: Generating Cypher traversal (Neo4j).

> [Graph_Agent]: Found analog: [JP] Te-form <-> [EN] "And" (sequential).

> [Synthesizer]: Assembling targeted analogy payload.

graph_retriever.py
Python 3.11
from langchain_community.graphs import Neo4jGraph

# Connecting to the unified Enterprise Knowledge Graph
graph = Neo4jGraph(url="neo4j+s://enterprise-prod.db")

def agentic_graph_retrieval(intent_type: str, params: dict) -> dict:
    """
    The LLM dynamically selects the traversal path based on the domain.
    """
    if intent_type == "B2B_SUPPLY_CHAIN":
        # Traverses: Supplier -> Component -> Risk_Factor
        cypher = """
        MATCH (s:Supplier {id: $supplier_id})-[:PROVIDES]->(c:Component)
        MATCH (c)-[:AFFECTED_BY]->(r:Risk_Factor {type: $risk_type})
        RETURN s.name, c.part_number, r.severity
        """
        
    elif intent_type == "LANGCASE_PEDAGOGY":
        # Traverses: Mastered Concept (Native) -> Analogous Concept (Target)
        cypher = """
        MATCH (s:Student {id: $student_id})-[:MASTERED]->(known:Concept)
        MATCH (known)-[:ANALOGOUS_TO]->(target:Concept {name: $target_concept})
        RETURN known.name AS bridge_concept, target.rules AS target_rules
        """
        
    return graph.query(cypher, params=params)

Engineering the Graph

Agents That Write
Cypher Queries.

In our architecture, the LLM is a database operator. When a user asks a complex question, our Planner Agents analyze the graph schema, write the exact Neo4j Cypher query required, execute it, and verify the results.

Whether auditing a global supply chain or teaching a student native-to-target grammar analogies, the retrieval logic remains structurally robust and mathematically sound.

Multi-Hop Search

Navigates deep data relationships beyond single keywords.

Explainability

Retrieves bridging concepts with clear node-level lineage.

Architecture Decision Record (ADR)

Why We Build
Knowledge Graphs.

We evaluate retrieval methods based on determinism and multi-hop reasoning. Here is why we deploy Graph-backed RAG for complex enterprise and educational platforms.

ADR 012: Core Retrieval Architecture for Enterprise AI

Date: 2026-05-09 · Status: Standardized

Published
Retrieval MethodMulti-Hop ReasoningExplainabilityHallucination Risk
Graph RAG (Neo4j)ExcellentHigh (Exact Nodes)Low
Standard Vector RAGPoorLowHigh Risk

Executive Verdict

Core retrieval systems will utilize Neo4j Knowledge Graphs. This is mandatory for domains requiring high accuracy (B2B Supply Chain, Compliance, EdTech) where structural relationships matter more than semantic keyword matches.

Stop searching for keywords.
Start retrieving intelligence.

If your current AI hallucinates because it can't connect the dots in your data, you don't need a better prompt—you need a better architecture.