Push information determination method and device

The invention provides a push information determination method and device. The push information determination method comprises the following steps: acquiring historical entity resource interaction information of a plurality of entities; determining a plurality of first entity interest preference feature vectors based on the historical entity resource interaction information; constructing a target binary index tree based on the plurality of first entity interest preference feature vectors; searching in the target binary index tree based on the to-be-recommended entity interest preference feature vector of the to-be-recommended entity to obtain a plurality of target entity interest preference feature vectors matched with the to-be-recommended entity interest preference feature vector; and push information is determined based on the multiple target entity interest preference feature vectors. According to the invention, the push information determination efficiency can be improved. 本申请提供一种推送信息确定方法及装置，该推送信息确定方法包括：