n-Gram-Based Text Compression

Table 9

CR of the current method with the methods presented in [13, 14].

Number	OFS	CFS-[13]	CR-[13]	CFS-[14]	CR-[14]	CFS-O	CR-O
1	1,166	345	70.41%	185	84.13%	136	88.34%
2	2,240	599	73.26%	359	83.97%	222	90.09%
3	6,628	1,803	72.80%	1,710	74.20%	887	86.62%
4	12,224	3,495	71.41%	2,057	83.17%	1,179	90.36%
5	22,692	6,418	71.72%	3,702	83.69%	2,180	90.39%
6	49,428	13,881	71.92%	7,870	84.08%	4,538	90.82%
7	96,994	26,772	72.40%	17,723	81.73%	10,416	89.26%
8	156,516	43,701	72.08%	27,434	82.47%	15,889	89.85%
9	269,000	74,504	72.30%	49,902	81.45%	28,937	89.24%
10	489,530	139,985	71.40%	92,739	81.06%	54,117	88.95%