Text Classification Using Novel Term Weighting Scheme-Based Improved TF-IDF for Internet Media Reports

Table 12

Performance on the Fudan corpus using the SVM classifier.

SVM	Precision					F1 score					Recall
	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	96.10	95.98	96.13	96.24%	96.24%	92.06	92.99	92.84	91.75%	91.75%	94.03	94.46	94.45	93.94%	93.94%
C15	100.00	100.00	100.00	100.00%	100.00%	9.09	9.09	9.09	9.09%	9.09%	16.67	16.67	16.67	16.67%	16.67%
C16	100.00	100.00	100.00	100.00%	100.00%	3.57	3.57	3.57	3.57%	3.57%	6.90	6.90	6.90	6.90%	6.90%
C17	100.00	100.00	100.00	100.00%	100.00%	18.52	22.22	22.22	18.52%	18.52%	31.25	36.36	36.36	31.25%	31.25%
C19	95.64	95.93	95.53	95.50%	95.56%	98.53	98.97	99.12	98.53%	98.31%	97.06	97.43	97.29	96.99%	96.92%
C23	100.00	100.00	100.00	100.00%	100.00%	5.88	5.88	5.88	5.88%	5.88%	11.11	11.11	11.11	11.11%	11.11%
C29	100.00	96.15	95.65	100.00%	100.00%	8.48	42.37	37.29	5.09%	3.39%	15.63	58.82	53.66	9.68%	6.56%
C3	87.10	88.85	89.17	87.18%	86.90%	95.55	95.55	95.42	95.28%	94.74%	91.13	92.08	92.19	91.05%	90.65%
C31	95.61	96.97	97.77	95.80%	95.86%	96.63	97.21	96.96	97.29%	97.04%	96.12	97.09	97.36	96.54%	96.45%
C32	94.17	94.10	93.47	94.43%	94.37%	96.38	96.67	96.58	96.18%	95.21%	95.26	95.37	95.00	95.30%	94.79%
C34	90.20	90.18	90.23	89.67%	87.03%	94.88	95.19	94.63	94.88%	94.75%	92.48	92.62	92.38	92.20%	90.73%
C35	100.00	95.24	92.31	100.00%	100.00%	23.08	38.46	46.15	11.54%	7.69%	37.50	54.80	61.54	20.69%	14.29%
C36	100.00	100.00	100.00	100.00%	100.00%	1.89	13.21	15.09	1.89%	1.89%	3.70	23.33	26.23	3.70%	3.70%
C37	100.00	100.00	100.00	100.00%	100.00%	5.26	5.26	5.26	5.26%	5.26%	10.00	10.00	10.00	10.00%	10.00%
C38	82.65	82.36	82.78	83.19%	82.66%	95.61	94.64	94.64	95.52%	95.22%	88.66	88.07	88.31	88.93%	88.50%
C39	85.36	88.69	87.68	84.86%	85.93%	96.73	96.97	96.49	96.97%	96.89%	90.69	92.65	91.88	90.51%	91.08%
C4	100.00	100.00	100.00	100.00%	100.00%	5.88	5.88	5.88	5.88%	2.94%	11.11	11.11	11.11	11.11%	5.71%
C5	66.67	66.67	66.67	66.67%	66.67%	3.28	3.28	3.28	3.28%	3.28%	6.25	6.25	6.25	6.25%	6.25%
C6	88.89	88.89	90.00	88.89%	88.89%	17.78	17.78	20.00	17.78%	17.78%	29.63	29.63	32.73	29.63%	29.63%
C7	82.78	81.30	80.99	82.43%	81.70%	68.80	72.44	73.72	68.16%	65.81%	75.15	76.61	77.18	74.62%	72.90%