Improved Distance Functions for Instance-Based Text Classification

Table 2

Pairwise comparison between VDM, ISCDM, and EVDM.

Dataset	VDM vs. ISCDM		VDM vs. EVDM		EVDM vs. ISDCM
	VDM	ISCDM	VDM	EVDM	EVDM	ISCDM
fbis.wc	74.75	70.60	74.75	76.61	76.61	70.60
la1s.wc	65.04	87.05	65.04	73.94	73.94	87.05
la2s.wc	66.05	87.54	66.05	73.82	73.82	87.54
Oh0.wc	78.27	91.63	78.27	87.64	87.64	91.63
Oh5.wc	83.99	88.02	83.99	87.36	87.36	88.02
Oh10.wc	73.33	80.95	73.33	78.86	78.86	80.95
Oh15.wc	79.85	85.54	79.85	83.35	83.35	85.54
ohscal.wc	63.04	74.11	63.04	73.09	73.09	74.11
re0.wc	79.79	80.12	79.79	75.40	75.40	80.12
re1.wc	85.88	84.25	85.88	84.97	84.97	84.25
tr11.wc	87.68	88.41	87.68	88.65	88.65	88.41
tr12.wc	88.18	92.01	88.18	86.58	86.58	92.01
tr21.wc	89.29	93.75	89.29	88.10	88.10	93.75
tr23.wc	89.71	92.16	89.71	91.18	91.18	92.16
tr31.wc	95.47	94.39	95.47	97.30	97.30	94.39
tr41.wc	90.21	90.89	90.21	94.42	94.42	90.89
tr45.wc	86.38	90.43	86.38	89.13	89.13	90.43
wap.wc	58.21	81.67	58.21	64.36	64.36	81.67
Average	79.73	86.31	79.72	83.04	83.04	86.31
#Better	3	15	4	14	5	13
#Sig better	2	11	2	12	3	10