Particular Audience Particular Audience
Talk to us

The retail operating system

One engine for every retail decision.

Most retailers run four or five separate tools.

Search in one tool, pricing in another, ads bolted on top — nobody owns the order shoppers see, and margin leaks between them. The Unified Decision Engine governs relevance, inventory, margin and sponsored demand in one pass, on every surface, including the AI assistants now doing the shopping.

Start with one surface. Leave the rest of your stack untouched.

Need one thing first? Start with our AI product recommendation engine or AI site search.

Retail media and ecommerce glossary | Particular Audience

Definitions of ROAS, incrementality, brand halo, holdout tests and product bundles as retail teams use them.

Concise definitions of the terms that come up in retail media and ecommerce discovery.

  • ROAS (return on ad spend): ROAS is attributed revenue divided by ad spend. What it shows, what it misses and how it relates to incrementality.
  • Incrementality: Incrementality is the extra sales caused by advertising, measured against a group that did not see it.
  • Brand halo: Brand halo is the sales uplift across a brand's wider range caused by advertising one of its products.
  • Holdout test: A holdout test withholds a campaign from a random group of shoppers to measure the campaign's true effect.
  • Product bundles: Product bundles group complementary items so shoppers can buy them together, often on the product page.

All guides