| 摘要 |
A current query model is constructed representing a first histogram of a first set of counts corresponding to a first set of search queries and a current time interval. One or more historical query models are constructed, each uniquely representing a different second histogram of a different second set of counts corresponding to a different second set of search queries and a different historical time interval. A third search query is received. A first generation probability is calculated for the third search query with respect to the current query model. One or more second generation probabilities are calculated for the third search query with respect to the historical query models. A ratio is calculated based on the first generation probability and the second generation probabilities. The third search query is identified as corresponding to an emerging event if the ratio satisfies a predetermined threshold requirement.
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