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Part XIII — Expert Mode: Systems, Agents, and Automation/41. Advanced RAG (Beyond the Basics)/41.3 Query rewriting and expansion
41.3 Query rewriting and expansion
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Query Rewriting
User queries are often vague. Rewrite them for better retrieval:
async function rewriteQuery(originalQuery: string): Promise {
const response = await model.generate(`
Rewrite this query into 3 search-optimized versions:
"${originalQuery}"
Output JSON: ["version1", "version2", "version3"]
`);
return JSON.parse(response);
}
// Example: "How do I fix the login bug?"
// → ["login authentication error troubleshooting",
// "login bug fix solution code",
// "user authentication failure resolution"] Query Expansion
// Add synonyms and related terms
async function expandQuery(query: string): Promise {
const expansions = await model.generate(`
Given: "${query}"
Add synonyms and related terms.
Output: expanded query string
`);
return `${query} ${expansions}`;
}