Fig 3. Grid partition of ApproxMaxMI and ChiMIC for parabolic function.

1000 data points simulated for functional relationships of the form y = 4x²+η. where η is noise drawn uniformly from (−0.25, 0.25). A: Grid partition for noiseless parabolic function. B: Grid partition based on ApproxMaxMI for noisy parabolic function. C: Grid partition based on ChiMIC for noisy parabolic function.