Knowledge Base Isolation, Sharing and RAG

Name: Neurova - Neural Perception · AI Awakening · Intelligent Agent Framework
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Intelligent knowledge management

The knowledge base module provides an isolation-and-sharing model across multiple users and multiple knowledge bases, layered with hybrid retrieval and intelligent RAG enhancement.

The four-tier visibility model

Visibility	Description	Typical use
public	Open — visible to everyone	Shared public knowledge bases
private	Creator only (the default)	Personal knowledge bases
shared_with	Visible to specified users or groups	Team collaboration
Approval-gated	Access requests require approval	Sensitive knowledge bases

The RAG retrieval pipeline

user question → hybrid retrieval (vectors + FTS5 full text + RRF fusion)
    ↓
knowledge base hits → permission filtering (strict 401)
    ↓
memory sync → context fusion → answer generated

Hybrid retrieval strategy

Vector retrieval (primary): semantic similarity (vector_index)
FTS5 full-text retrieval (secondary): exact keyword matching
RRF hybrid ranking: Reciprocal Rank Fusion
Adaptive retrieval: adjusts dynamically to query complexity (off by default)

API

GET  /api/v1/knowledge        # list knowledge bases
POST /api/v1/knowledge        # create a knowledge base
POST /api/v1/knowledge/{id}/search  # search (hybrid RAG)
POST /api/v1/knowledge/{id}/share   # share / approval
GET  /api/v1/knowledge-graph  # knowledge graph