1. A website navigation implementing method, comprising: deriving a confidence level for at least one leaf node of a website navigation category diagram using historical user operation data; generating one or more navigation hierarchical structure diagrams based on the website navigation category diagram; determining a searching cost associated with each of the one or more navigation hierarchical structure diagrams; determining the navigation hierarchical structure diagram associated with the lowest to searching cost; and implementing at least in part a website navigation process using the navigation hierarchical structure diagram associated with the lowest searching cost.