32results about How to "Reduce query volume" patented technology

The invention provides a method and device for recognizing an abrupt timeliness search term. The method comprises the steps of calculating the variation tendency of the search quantity of a search item in a first period of time and the variation tendency of the search quantity of the search item in a second period of time, wherein the second period of time is part of the first period of time; comparing the variation tendency of the search quantity of the search item in the first period of time with the variation tendency of the search quantity of the search item in the second period of time to obtain the difference, and judging whether the search term is the abrupt timeliness search term according to the difference. According to the technical scheme, the variation tendency of the search quantity of the search item in the longer period of time is compared with the variation tendency of the search quantity of the search item in the shorter period of time, the abrupt increase condition of the search quantity can be obviously reflected in the difference between the variation tendencies of the search quantity even though the search quantity of the search item is kept in a small order of magnitudes, and therefore the abrupt timeliness search term can be easily recognized.