2 papers
math.ST2026
Global minimax risk and acquisition laws for heterogeneous information fusion
Armon Rasooli, Mohammad Sadegh Narimani
We prove an all-allocation global target-risk theorem for independent Gaussian sources that share a scalar nuisance and an unknown contact coordinate. For a fixed immersed nuisance…
eess.SP2026
Sharp Minimax Limits and Compatibility Spectra for Critical Near-DFT Index-Only Frequency Estimation
Armon Rasooli, Mohammad Sadegh Narimani
An -channel discrete Fourier transform (DFT) channelizer routes an on-grid sinusoid to a single output. When each frame reports only one energy-proportional channel index, signe…