Boost with Signals Stage

The Recommendation Boosting query pipeline stage uses aggregated signals to selectively boost items in the set of search results. Recommendation boosting implements collaborative filtering. Signals contain relevance feedback, that is, information about what users do. For example, they might contain information about clicks or page views. Boosting occurs when the same query comes in again.

See Recommendations for more information.

This stage accesses the signals_aggr collection. Before using it, verify that the following permission is set: