3 papers
math.NA2026
The devil in the (de)tails: an improved recovery guarantee for sparse approximation
Ben Adcock, Simone Brugiapaglia, Avi Gupta
Many functions exhibit approximate sparsity in their coefficients with respect to a given dictionary. In recent literature, sparse approximation in such a dictionary from i.i.d. po…
math.NA2026
Universal, sample-optimal algorithms for recovery of anisotropic functions from i.i.d. samples
Ben Adcock, Avi Gupta
A key problem in approximation theory is the recovery of high-dimensional functions from samples. In many cases, the functions of interest exhibit anisotropic smoothness, and, in m…
cs.CV2025
SAMwave: Wavelet-Driven Feature Enrichment for Effective Adaptation of Segment Anything Model
Saurabh Yadav, Avi Gupta, Koteswar Rao Jerripothula
The emergence of large foundation models has propelled significant advances in various domains. The Segment Anything Model (SAM), a leading model for image segmentation, exemplifie…