Research Article
Text Classification Using Novel Term Weighting Scheme-Based Improved TF-IDF for Internet Media Reports
Table 14
Performance on the Fudan corpus using the NB classifier.
| NB | Precision | Recall | F1 score | TF-IDF (%) | TF-IADF (%) | TF-IADFnorm (%) | TF-IADF+ | TF-IADF+norm (%) | TF-IDF (%) | TF-IADF (%) | TF-IADFnorm (%) | TF-IADF+ (%) | TF-IADF+norm (%) | TF-IDF (%) | TF-IADF (%) | TF-IADFnorm | TF-IADF+ (%) | TF-IADF+norm (%) |
| C11 | 94.98 | 94.57 | 94.53 | 94.99 | 94.83 | 91.28 | 89.56 | 88.79 | 91.59 | 91.43 | 93.09 | 92.00 | 91.57 | 93.26 | 93.10 | C15 | 93.75 | 100.00 | 100.00 | 93.75 | 93.75 | 45.46 | 30.30 | 27.27 | 45.46 | 45.46 | 61.22 | 46.51 | 42.86 | 61.22 | 61.22 | C16 | 66.67 | 100.00 | 100.00 | 75.00 | 80.00 | 7.14 | 3.57 | 3.57 | 10.71 | 14.29 | 12.90 | 6.90 | 6.90 | 18.75 | 24.24 | C17 | 87.50 | 86.67 | 83.33 | 93.75 | 94.12 | 51.85 | 48.15 | 37.04 | 55.56 | 59.26 | 65.12 | 61.91 | 51.28 | 69.77 | 72.73 | C19 | 96.38 | 96.02 | 95.87 | 96.46 | 96.38 | 96.17 | 96.02 | 95.80 | 96.17 | 96.17 | 96.28 | 96.02 | 95.84 | 96.31 | 96.28 | C23 | 93.33 | 92.31 | 100.00 | 94.74 | 90.00 | 41.18 | 35.29 | 20.59 | 52.94 | 52.94 | 57.14 | 51.06 | 34.15 | 67.93 | 66.67 | C29 | 86.36 | 87.88 | 87.10 | 86.36 | 88.89 | 64.41 | 49.15 | 45.76 | 64.41 | 67.80 | 73.79 | 63.04 | 60.00 | 73.79 | 76.92 | C3 | 82.94 | 81.81 | 81.19 | 83.43 | 83.51 | 94.34 | 95.15 | 95.42 | 94.34 | 94.21 | 88.27 | 87.98 | 87.73 | 88.55 | 88.54 | C31 | 97.59 | 97.89 | 97.78 | 97.69 | 97.69 | 92.94 | 91.38 | 90.48 | 93.76 | 93.76 | 95.21 | 94.52 | 93.99 | 95.69 | 95.69 | C32 | 91.92 | 90.70 | 90.35 | 91.68 | 91.60 | 90.22 | 88.75 | 87.97 | 90.61 | 90.71 | 91.06 | 89.71 | 89.14 | 91.14 | 91.15 | C34 | 85.05 | 82.86 | 81.32 | 85.76 | 86.20 | 92.76 | 92.69 | 92.44 | 92.94 | 92.88 | 88.74 | 87.50 | 86.52 | 89.21 | 89.42 | C35 | 87.50 | 86.96 | 87.50 | 86.96 | 86.96 | 40.39 | 38.46 | 40.39 | 38.46 | 38.46 | 55.26 | 53.33 | 55.26 | 53.33 | 53.33 | C36 | 90.91 | 88.89 | 93.33 | 90.91 | 90.91 | 37.74 | 30.19 | 26.42 | 37.74 | 37.74 | 53.33 | 45.07 | 41.18 | 53.33 | 53.33 | C37 | 78.85 | 84.09 | 81.40 | 78.43 | 78.85 | 53.95 | 48.68 | 46.05 | 52.63 | 53.95 | 64.06 | 61.67 | 58.82 | 62.99 | 64.06 | C38 | 84.30 | 83.12 | 82.16 | 85.46 | 85.55 | 92.11 | 92.59 | 92.01 | 92.20 | 92.30 | 88.03 | 87.60 | 86.81 | 88.70 | 88.80 | C39 | 89.30 | 88.29 | 87.30 | 89.39 | 89.39 | 93.86 | 93.22 | 92.66 | 94.02 | 94.02 | 91.52 | 90.69 | 89.90 | 91.64 | 91.64 | C4 | 50.00 | 100.00 | 100.00 | 50.00 | 50.00 | 5.88 | 5.88 | 5.88 | 5.88 | 5.88 | 10.53 | 11.11 | 11.11 | 10.53 | 10.53 | C5 | 80.00 | 75.00 | 71.43 | 87.50 | 77.78 | 13.12 | 9.84 | 8.20 | 11.48 | 11.48 | 22.54 | 17.39 | 14.71 | 20.29 | 20.00 | C6 | 90.00 | 90.00 | 90.00 | 90.00 | 90.00 | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 32.73 | 32.73 | 32.73 | 32.73 | 32.73 | C7 | 69.10 | 71.76 | 72.49 | 68.97 | 69.17 | 66.88 | 66.24 | 64.74 | 68.38 | 69.02 | 67.97 | 68.89 | 68.40 | 68.67 | 69.09 |
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