SP500215 Automatic Routing and Ad-hoc Retrieval Using SMART: TREC 2 chapter C. Buckley J. Allan G. Salton National Institute of Standards and Technology D. K. Harman Query Phrase Single Phrase Orig Weight Weight Import Expand Expand Query Relevant Non-relevant 51 0.u 500 24 4 52 0.0 200 * 8 16 0 53 1.0 500 50 8 48 4 54 0.0 200 8 36 4 55 0.0 200 8 24 8 56 1.0 0 0 8 8 4 57 0.0 500 8 24 4 58 1.0 500 0 8 48 4 59 0.5 100 10 8 8 4 60 1.0 0 0 8 8 4 61 0.0 0 8 8 4 62 0.0 500 8 24 4 63 1.0 0 0 8 8 4 64 0.0 500 8 16 4 65 1.0 200 0 8 16 4 66 1.0 200 0 8 16 4 67 0.0 500 8 16 4 68 1.0 300 0 8 48 4 69 1.0 500 0 8 24 4 70 1.0 500 50 8 48 4 71 0.0 500 8 8 4 72 1.0 300 0 8 48 4 73 0.0 500 8 16 4 74 1.0 100 100 8 8 4 75 0.0 100 8 24 6 76 1.0 300 0 8 24 4 77 0.0 500 8 8 4 78 0.0 0 8 24 4 79 0.0 500 8 24 4 80 1.0 500 0 8 24 4 81 1.0 500 0 8 32 4 82 1.0 500 0 8 32 4 83 0.0 500 8 24 4 84 0.0 100 8 36 4 85 1.0 100 10 8 24 4 86 0.0 30 8 24 4 87 1.0 500 0 8 48 4 88 1.0 500 50 8 48 4 89 1.0 500 0 8 48 4 90 0.0 500 8 16 4 91 1.0 0 0 8 24 4 92 0.0 100 8 36 4 93 1.0 100 50 8 8 4 94 0.0 200 8 36 4 95 0.0 200 8 16 8 96 1.0 300 50 8 48 4 97 0.0 200 8 36 4 98 0.0 500 8 24 4 99 0.0 50 8 24 4 100 1.0 500 50 8 48 4 Table 5: Optimum routing parameters, query-by-query 53