10 citations · 18 across the 4 of their papers we have counts for
4 papers
Room-temperature surface multiferroicity in YNiMnO nanorods
Shubhankar Mishra, Amritendu Roy, Aditi Sahoo +5
We report observation of surface-defect-induced room temperature multiferroicity - surface ferromagnetism ( at 50 kOe 0.005 emu/g), ferroelectricity ( 2 nC/cm…
Adaptive Bayesian Sampling with Monte Carlo EM
Anirban Roychowdhury, Srinivasan Parthasarathy
We present a novel technique for learning the mass matrices in samplers obtained from discretized dynamics that preserve some energy function. Existing adaptive samplers use Rieman…
Accelerated Stochastic Quasi-Newton Optimization on Riemann Manifolds
Anirban Roychowdhury
We propose an L-BFGS optimization algorithm on Riemannian manifolds using minibatched stochastic variance reduction techniques for fast convergence with constant step sizes, withou…
Gamma Processes, Stick-Breaking, and Variational Inference
Anirban Roychowdhury, Brian Kulis
While most Bayesian nonparametric models in machine learning have focused on the Dirichlet process, the beta process, or their variants, the gamma process has recently emerged as a…