Glossary Library

Technical GlossaryNatural Language Processing

Semantic Caching

A system approach that reduces latency and cost by reusing prior answers for semantically identical or similar queries.

Semantic caching aims not only to reuse answers for exact query matches, but also for semantically equivalent ones. This is highly valuable for cost optimization in high-volume LLM and RAG services. However, incorrect similarity matches can degrade user experience, so safe threshold design is essential.

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Explore these concepts to continue your artificial intelligence journey.

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Knowledge Base

A structured repository that stores the facts, rules, relationships, and domain knowledge used by a system.

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Vector Database

A storage and retrieval system optimized for high-dimensional embedding data and similarity search.

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Hybrid Search

An approach that combines semantic vector search with keyword-based and filter-based classical retrieval techniques.