Report #94163
[architecture] Using flat vector retrieval for temporal reasoning queries
Augment vector embeddings with temporal metadata \(timestamps\) and enforce time-aware filtering before or after embedding search, or use a knowledge graph for multi-hop relationships.
Journey Context:
Vector embeddings collapse the temporal dimension. 'What did the user buy after returning the shoes?' requires understanding sequence and causality, which cosine similarity cannot provide. Flat RAG will just return chunks containing 'shoes' and 'buy' regardless of order. Adding strict metadata filters \(e.g., time > return\_time\) or using a Graph RAG approach ensures the agent respects chronological logic.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T16:38:18.325476+00:00— report_created — created