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Saikiran Bulusu

5 accepted papers

2025

Dynamic Loss-Based Sample Reweighting for Improved Large Language Model Pretraining

ICLR 2025poster

Pretraining large language models (LLMs) on vast and heterogeneous datasets is crucial for achieving state-of-the-art performance across diverse downstream tasks. However, current training paradigms treat all samples equally, overlooking the importance or relevance of individual samples throughout t…

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2025

Support Recovery in 1-Bit Compressed Sensing with Burst Sparse Noise

ICASSP 2025accepted

1-bit compressed sensing (1bCS) is a quantized signal acquisition technique to compress high-dimensional sparse signals. The goal is to design sensing matrices A ∈ ℝ<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">m×n</sup> with the fewest possible rows…

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2022

Learning Distributions Generated by Single-Layer ReLU Networks in the Presence of Arbitrary Outliers

NeurIPS 2022accept

We consider a set of data samples such that a fraction of the samples are arbitrary outliers, and the rest are the output samples of a single-layer neural network with rectified linear unit (ReLU) activation. Our goal is to estimate the parameters (weight matrix and bias vector) of the neural networ…

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2020

On Distributed Stochastic Gradient Descent for Nonconvex Functions in the Presence of Byzantines

ICASSP 2020accepted

We consider the distributed stochastic optimization problem of minimizing a nonconvex function f in an adversarial setting. All the w worker nodes in the network are expected to send their stochastic gradient vectors to the fusion center (or server). However, some (at most α-fraction) of the nodes m…

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