Skip to content

Author

Subhransu S. Bhattacharjee

4 papers indexed here

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Aug 2026

Parameter-Robust Subspace Correction with Multiple Semidefinite Penalties

Independently weighted semidefinite penalties arise in augmented-Lagrangian and constrained formulations. This paper characterizes when an exact additive subspace-correction preconditioner remains uniformly effective over all nonnegative penalty weights on a fixed finite-dimensional space. Robustness holds precisely wh...

Subhransu S. Bhattacharjee · 0 citations
#machine learning Preprint Oct 2026

Rubix: Global Correspondence-Free Point Set Alignment through Assignment Geometry

The sharp bound of $n(n-1)$ vertices for $n\ge2$ is proved, answering Rote's rotation-assignment open problem, and assignment-based bounds extend the approach to three-dimensional rotations and partial matching at a supplied translation through branch-and-bound.

Subhransu S. Bhattacharjee, Dylan Campbell, Rahul Shome · 0 citations
#machine learning Preprint Sep 2026

The cost of useful natural gradient updates

What information is needed to turn a natural-gradient direction into a useful finite update? Under a population Kullback-Leibler (KL) budget, we call a step useful if it is feasible and loses at most a fraction $\varepsilon$ of the best feasible gain along the direction. We construct a four-state exponential family who...

Subhransu S. Bhattacharjee, Dylan Campbell, Rahul Shome · 0 citations

We use cookies to run the site and, with your consent, for analytics and to show ads. See our Cookie Policy.