49. The system of claim 48 , where, when formulating the search query refinement suggestion, the processor is further to: compare the computed scores of the unique search queries of the named clusters to a threshold; and select those cluster names with the computed score that exceeds the threshold to obtain the search query refinement suggestions.
50. The system of claim 49 , where, when sorting the formulated search query refinement suggestion, the processor is further to: sort the formulated search query refinement suggestion among a group of search query refinement suggestions based on a relevance score assigned to each of the search result documents corresponding to the identified search documents associated with the named clusters and a number of the identified search documents in the named clusters to obtain a sorted set of search query refinement suggestions.