SP500215 Appendix B: System Features Appendix National Institute of Standards and Technology D. K. Harman lB. CONSTRUCTION OF INDICES, KNOWI£DGE BASES AND OThER DATA STRUCTURES - STATISTICS ON DATA STRUCTURES 460 Mbytes for D3 (test set for routing Mbytes for D12 (`earning set for routing and test set for adhoc). CPU hours for D3, 9 CPU hours for D12. ove figures are roughly 25% phrases. ) Mbytes for D3 (test set for routing). Mbytes for D12 (`earning set for routing and test set for adhoc). e GB total for all 7 collections, 3 disks. nged from 6 to 20 hours for each collection. t used in final runs. cause we used the UMASS INQUERY systeni and its indexing, all of the answers to the questions in this section for our systems are identical to those for the 1 ghtly over 2 hours to build inverted index for Disk 3 given structures for Disk 2.