Halcor

A product search system that understands messy, incomplete or bilingual descriptions and finds the right item more accurately.

Role: AI Engineer, Netcompany
Status: In use
Technology (for technical readers): LangGraph · vector search · GPT-4o-mini · LLM-as-a-judge

+23%improvement in matching F1 score

3steps to find the best match

11bilingual examples used for quality

How it works

Understand the request

Find products with similar meaning

Check sizes and specifications

Compare the most promising results

Select the best match23% improvement in F1 score; live in production

If the search is unclear, try a broader search once

What I built

Improved the product-matching F1 score by 23% compared with the original approach by combining meaning-based search, specification checks and AI review. The system is live.
Designed a backup search process for unclear or unusual requests, helping the system recover when an initial search fails.

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