Unverified60% confidenceFactExact time
HNSW (Hierarchical Navigable Small World) builds a multi-layer graph structure with a query time complexity of approximately O(log n), and is the default index for mainstream vector libraries such as Qdrant and Weaviate
2
Sources
60%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
Adaptive Recall：基于MCP协议的AI助手持久记忆方案解析
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