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stat.AP2023
Nonparametric Modeling of Diffusion MRI Signal in Q-space
Arkaprava Roy, Zhou Lan, Zhengwu Zhang
This paper describes a novel nonparametric model for modeling diffusion MRI signals in q-space. In q-space, diffusion MRI signal is measured for a sequence of magnetic strengths (b…
stat.ME2023
Conic Sparsity: Estimation of Regression Parameters in Closed Convex Polyhedral Cones
Neha Agarwala, Arkaprava Roy, Anindya Roy
Statistical problems often involve linear equality and inequality constraints on model parameters. Direct estimation of parameters restricted to general polyhedral cones, particula…