Portfolioβ€ΊAI & Promptingβ€ΊPrompting for Vector Databases & Semantic Search
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Prompting for Vector Databases & Semantic Search

Optimize query formatting, hybrid search parameters, and metadata retrieval filtering through LLM prompting. Tests metadata extraction, embedding preparation, and retrieval ranking logic.

Vector database queryingMetadata extractionSemantic search optimizationHybrid search prompting

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Topic Execution Guide

Vector Databases & Semantic Search Retrieval Prompting

Vector databases store text embeddings to enable fast semantic similarity retrieval. AI developers prove skills by configuring vector databases (Pinecone, Qdrant, ChromaDB, Weaviate), generating embeddings, calculating Cosine Similarity, and engineering Top-K context retrieval prompts.

1. Vector Database Search & Retrieval Specification

Architectural blueprint detailing embedding model selection, vector dimension settings, and similarity metrics.

2. Hybrid Search (Dense + Sparse) Query Architecture

Query pipeline combining dense vector embeddings (semantic match) with sparse BM25 keywords (exact match).

3. Top-K Retrieval Precision Audit Report

Evaluation report measuring retrieval precision@K, recall@K, and context relevance in RAG prompts.

Frequently Asked Questions (Prompting for Vector Databases & Semantic Search)

What is the difference between Cosine Similarity and Dot Product vector distances?

Cosine Similarity measures the angle direction between two normalized vectors regardless of magnitude. Dot Product accounts for both vector angle and magnitude, faster when vectors are pre-normalized.

What is Hybrid Search (Dense + Sparse)?

Hybrid search combines dense vector search (capturing conceptual meaning) with sparse keyword search (BM25 capturing exact product IDs or names), delivering optimal retrieval accuracy.

How many context chunks (Top-K) should be injected into a RAG prompt?

Typically Top 3 to 5 relevant chunks. Injecting too many chunks increases token costs and risks introducing irrelevant context noise.

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