10. The apparatus as recited in claim 7 , the apparatus further comprising: a filtering unit connected with the statistics unit and used for filtering out one or more search keywords that satisfy a filtering rule.
7. An apparatus comprising: one or more processors; memory; an acquisition unit stored in the memory and executable by the one or more processors, used for obtaining search keywords used by users within a predetermined time period; a statistics unit stored in the memory and executable by the one or more processors, used for counting the search keywords to obtain a primary keyword, related keywords, co-search frequencies of the primary keyword and the related keywords being searched together, and a search frequency of the primary keyword being searched alone; a correlation computing sub-unit stored in the memory and executable by the one or more processors, used for computing correlation levels based at least in part on the co-search frequencies of the primary keyword and the related keywords being searched together; a first computation unit stored in the memory and executable by the one or more processors, used for computing a first feature value based at least in part on the search frequency of the primary keyword being searched alone; and a second computation unit stored in the memory and executable by the one or more processors, used for computing second feature values based at least in part on the first feature value, the correlation levels and the co-search frequencies of the primary keyword and the related keywords being searched together, wherein a second feature value serves as a parameter for determining whether a corresponding related keyword of the related keywords is to be displayed constantly or in a rotating manner.