How Amazon Personalize treat the Explicit Impression data in real time using PutEvent

Question

We using Amazon Personalize to build some real-time recommendation model. We used the explicit impression data. A quick question we have is: when we are using the PutEvent to record the live Event, will Amazon Personalize adjust the recommendation immediately and demote or filter out those items that are not interacted in the impression data? In short, does sending impressions with PutEvents affect the recommendation for the same user immediately?

Answer

Real-time events recorded using `PutEvent` will affect the recommendations within seconds if your application calls Personalize again to generate new recommendations for that user. Impression data, which the user did not interact with, included in `PutEvent` will decrease the chance of those products appearing in the recommendations again.

How Amazon Personalize treat the Explicit Impression data in real time using PutEvent

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