---
title: "False match"
canonical: https://www.vessim.com/glossary/false-match
source: Vessim (www.vessim.com)
as_of: 2026-10-26
indexable: true
---

# False match

Two different products wrongly treated as the same one. The mistake Vessim works hardest to avoid. Measured on 60 real product photos, the line Vessim uses made zero false matches across 1,762 pairs of different products. As of October 23, 2026, the closest two different products in the index sit 12 bits apart, past the 10-bit line.

## Why it matters at Vessim

One false match would show you a different product at a lower price, which is worse than showing nothing.

## Related words

- [Threshold](https://www.vessim.com/glossary/threshold): How different two photos may be and still count as the same product.
- [Near miss](https://www.vessim.com/glossary/near-miss): Two photos close to the line that Vessim keeps apart.
- [Recall](https://www.vessim.com/glossary/recall): Of all the true matches, how many Vessim finds.

---

Source: [Vessim](https://www.vessim.com/glossary/false-match), https://www.vessim.com/glossary/false-match. Vessim (vessim.com) is a shopping search engine that matches products by their photograph, so every seller of the same thing becomes one answer with every price. Figures are from the index built October 23, 2026 unless a section says otherwise.