Table 4.

Experimental results on the 15 synthetic test problems.

#	True year, lag, output, #features	Found year, lag, output, #true feat.	#Feat. mean± std	Excess #features found in ∩
1	2002, 2, 3, 2	2002, 2, 3, 2	46±4	0
2	2003, 1, 1, 2	2003, 1, 1, 2	45±5	0
3	2007, 0, 2, 2	2007, 0, 2, 2	46±6	0
4	2005, 2, 4, 2	2005, 2, 4, 2	44±4	0
5	2004, 1, 3, 2	2004, 1, 3, 2	45±5	1
6	2002, 2, 3, 3	2002, 2, 3, 3	48±5	0
7	2003, 1, 1, 3	2003, 1, 1, 3	47±6	1
8	2007, 0, 2, 3	2007, 0, 2, 3	47±6	1
9	2005, 2, 4, 3	2005, 2, 4, 3	48±6	1
10	2004, 1, 3, 3	2004, 1, 3, 3	47±5	1
11	2002, 2, 3, 8	2002, 2, 3, 8	49±7	3
12	2003, 1, 1, 8	2003, 1, 1, 8	48±6	1
13	2007, 0, 2, 8	2007, 0, 2, 8	52±8	3
14	2005, 2, 4, 8	2005, 2, 4, 8	50±7	2
15	2004, 1, 3, 8	2004, 1, 3, 8	51±8	1