1. A method of generating updating parameters, the method comprising: obtaining search keywords used by users within a predetermined time period; counting the search keywords to obtain primary keywords, related keywords, co-search frequencies of each primary keyword and the respective related keywords being searched together, and search frequencies of the primary keywords being searched alone; computing first feature values based on the search frequencies of the primary keywords being searched alone; and computing second feature values based on the first feature values and the co-search frequencies of the primary keywords and the respective related keywords, the second feature values serving as updating parameters for determining displaying modes of the related keywords.