User intention recognition method and device based on user multi-interest evolution

The invention discloses a user intention recognition method and device based on user multi-interest evolution, and the method comprises the steps: constructing a content intention pool, and selecting a content intention reaching a preset user interest probability from the content intention pool according to a historical interaction sequence of a user; judging whether the historical commodities are related commodities with content intentions or not by using a correlation judgment network, obtaining an intention chain composed of the related commodities, and obtaining final intention expressions of the user according to the intention chain and operation behaviors of the user on different commodities; and according to the current search word of the user, selecting the intention expression with the correlation reaching a preset value to predict the purchase intention of the user. According to the invention, the user can enjoy more high-quality and personalized platform service, and the user experience is improved