LP.
SYSTEM CASE STUDY

Semantic Search Engine

Document search platform converting unstructured text into vector embeddings with contextually relevant retrieval. Multi-tenant indexing, hybrid keyword + semantic search, and relevance tuning.

OpenAI EmbeddingsPineconeNext.jsNode.jsPostgreSQL
VERIFIED BENCHMARKS & IMPACT
Benchmark

100K+ documents indexed

Benchmark

<500ms p95 retrieval latency

Benchmark

30% relevance lift over keyword-only

01 / THE PROBLEM

Operational Bottleneck

Traditional keyword search fails when users don't know the exact terms in a document. Organizations need search that understands meaning, not just keywords.

02 / SYSTEM ARCHITECTURE
01

Document ingestion with automatic text extraction and cleaning

02

OpenAI embedding generation with batch processing

03

Pinecone vector store with namespace-based multi-tenancy

04

Hybrid retrieval: BM25 keyword scoring + cosine similarity fusion

05

Relevance tuning API for per-tenant search customization

06

PostgreSQL for document metadata and access control

03 / RESULTS & PRODUCTION IMPACT
-Consistent <500ms p95 latency across large document collections
-Multi-tenant architecture serving isolated search indexes
-Hybrid search outperforms pure keyword or pure semantic by 30%+

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