Intermediate · NLP

Semantic Similarity

Visual diagram · (in preparation) · Math · (in preparation) · Worked example · 3 difficulty levels.

TL;DR. Measuring how closely two words, phrases, or documents are related in meaning.

Technical Definition

Measuring how closely two words, phrases, or documents are related in meaning.

How it works

Semantic Similarity goes beyond lexical matching to understand the conceptual closeness of language. In conversational AI, it helps match user queries to relevant intents or FAQs even if the exact keywords aren't present. This allows for more intelligent and adaptable responses, improving the AI's ability to fulfill user requests.

Related Concepts

• Natural Language Understanding (NLU) — The ability of a computer program to understand human language as it is spoken or written.
• Paraphrase Detection — Identifying if two different phrases or sentences convey the same meaning.