Table 1.

Optimal encoding parameters t_i for estimating decay constant λ in the vicinity of λ_tunefor several N-point methods. Note that all protocols (except N = 9) are found to be “two-point” ones. The N = 9 case appears different due to the sampling grid granularity: two points out of the three lie on the neighboring grid points.

N	λtuneti
2	0	1.10
3	0	1.20	1.20
4	0	1.25	1.25	1.25
5	0	1.30	1.30	1.30	1.30
6	0	1.35	1.35	1.35	1.35	1.35
7	0	0	1.20	1.20	1.20	1.20	1.20
8	0	0	1.25	1.25	1.25	1.25	1.25	1.25
9	0	0	1.25	1.25	1.25	1.25	1.30	1.30	1.30
10	0	0	1.30	1.30	1.30	1.30	1.30	1.30	1.30	1.30