6. The method of claim 5 , wherein: creating the cube structure further comprises populating the cube structure with a plurality of measures, each measure being categorized by one or more dimensions of the cube, wherein each measure of the cube structure is based on documents classified by facets that correspond to the one or more dimensions categorizing the measure.
6. The method of claim 5 , wherein: creating the cube structure further comprises populating the cube structure with a plurality of measures, each measure being categorized by one or more dimensions of the cube, wherein each measure of the cube structure is based on documents classified by facets that correspond to the one or more dimensions categorizing the measure. 7. The method of claim 6 , wherein outputting the multi-dimensional search interface comprises constructing a multi-dimensional search query on the cube structure to select measures for display in the multidimensional search interface, the selected measures being based on the documents that satisfy the query.