Session-Based Personalization
Session-based personalization adjusts search or browse results using only the current visit's behavior — recent clicks, dwell time, items viewed — without relying on a shopper's identity or purchase history.
Part of Personalization
It's the form of personalization most stores can apply to first-time or anonymous visitors, since it needs no prior data about who the shopper is, only what they've done so far in the current session.