Method and apparatus for building route time consumption estimation model, and method and apparatus for estimating route time consumption

A method for building a route time consumption estimation model, wherein the method comprises:

• obtaining training data from user trajectory data, the training data comprising:
• a route through which a user passes, time information when the user passes through the route, and actual time consumption information for the user to pass through the route;
• obtaining the route time consumption estimation model by using the training data, wherein the route time consumption estimation model comprises:
• a road segment subnetwork and an integration subnetwork;
• the road segment subnetwork obtaining vector representations of road segments respectively based on the road segments included by the route and their context;
• the integration subnetwork determining an estimated time consumption on the route according to a feature representation of the time information, vector representations of the road segments and road condition feature representations of the road segments included by the route, wherein the road condition feature representations of the road segments are obtained from road condition information of the road segments and their context;
• a training target of the route time consumption estimation model being to minimize a difference between the estimated time consumption and an actual time consumption on the route.