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Vector Databases, Explained for Backend Engineers
What embeddings are, why approximate nearest-neighbor search needs special indexes, and when you actually need a vector database versus a pgvector column.
Amit Kumar Singh3 min read
cd ~/category/ai/vector-search
Vector Search
3 articles## Vector Search
Vector Index Tuning: HNSW vs IVF
How HNSW and IVF vector indexes trade recall, latency, memory, and build cost for production semantic search.
Amit Kumar Singh2 min read
Metadata Filtering in Vector Search
Why metadata filters are essential for multi-tenant vector search, and how filter selectivity changes index design and retrieval quality.
Amit Kumar Singh2 min read