1. A system, comprising: one or more processors configured to: generate a plurality of navigation hierarchical structure diagrams based on a website navigation category diagram; determine a plurality of searching costs corresponding to respective ones of the plurality of navigation hierarchical structure diagrams; select a selected navigation hierarchical structure diagram of the plurality of navigation hierarchical structure diagrams based on the plurality of searching costs; and implement at least in part a website navigation process using the selected navigation hierarchical structure diagram; and one or more memories coupled to the one or more processors and configured to provide instructions to the one or more processors.