AI search
Words made simple
A few useful meanings before you read the explanation.
- AI
- Software techniques for tasks such as recognizing patterns, understanding language or generating content.
- LLM
- A model trained to work with language. It can write or summarize text, but its answer still needs checking against reliable information.
- Semantic search
- Searching by meaning rather than only matching exact words. A search for damaged car may also find vehicle accident documents.
More words from this lesson
- Retrieval
- Finding and fetching information that is useful for the current question.
- Authorization
- Checking what that identity is allowed to read or do. Being logged in does not grant access to every record.
Overview
AI search often uses semantic or hybrid retrieval to return relevant results. Generation is optional. A result list can be sufficient.
Why this matters
Users describe concepts without exact keyword knowledge.
An everyday example
A librarian understands the subject you mean.
A technical example
/search?q=accident+paperwork returns authorized policy sections.
How it works
- Validate query
- Filter scope
- Semantic/keyword search
- Rank
- Return excerpts/links.
Architecture and flow
UI search → Node → hybrid index → source results.
The insurance assistant example
Find relevant claim document checklists.
When to use it
Discovery and direct evidence access.
When to avoid it
Do not add generation when users only need source navigation.
Interview answer
“Semantic search improves discovery; an LLM answer is an optional layer after retrieval.”
Benefits, trade-offs, and production considerations
Search-only can be faster, cheaper, and easier to verify. Recheck source access when opening results.
Can you explain it without the notes?
AI search
Use your own words. Explain an example and one limitation before checking the explanation.
Check your explanation
AI search often uses semantic or hybrid retrieval to return relevant results. Generation is optional. A result list can be sufficient.
Turn this concept into a clear answer.
Practice this conceptAdapted from 13_AI.MD · “AI search”. Examples are study fragments; framework behavior can depend on your version.