Search Results for author: Ayan Acharya

Found 6 papers, 0 papers with code

A Precise Characterization of SGD Stability Using Loss Surface Geometry

no code implementations22 Jan 2024 Gregory Dexter, Borja Ocejo, Sathiya Keerthi, Aman Gupta, Ayan Acharya, Rajiv Khanna

In this paper, we delve deeper into the relationship between linear stability and sharpness.

QuantEase: Optimization-based Quantization for Language Models

no code implementations5 Sep 2023 Kayhan Behdin, Ayan Acharya, Aman Gupta, Qingquan Song, Siyu Zhu, Sathiya Keerthi, Rahul Mazumder

Particularly noteworthy is our outlier-aware algorithm's capability to achieve near or sub-3-bit quantization of LLMs with an acceptable drop in accuracy, obviating the need for non-uniform quantization or grouping techniques, improving upon methods such as SpQR by up to two times in terms of perplexity.

Quantization

mSAM: Micro-Batch-Averaged Sharpness-Aware Minimization

no code implementations19 Feb 2023 Kayhan Behdin, Qingquan Song, Aman Gupta, Sathiya Keerthi, Ayan Acharya, Borja Ocejo, Gregory Dexter, Rajiv Khanna, David Durfee, Rahul Mazumder

Modern deep learning models are over-parameterized, where different optima can result in widely varying generalization performance.

Image Classification

Isometric Graph Neural Networks

no code implementations16 Jun 2020 Matthew Walker, Bo Yan, Yiou Xiao, Yafei Wang, Ayan Acharya

Many tasks that rely on representations of nodes in graphs would benefit if those representations were faithful to distances between nodes in the graph.

Nonparametric Bayesian Factor Analysis for Dynamic Count Matrices

no code implementations30 Dec 2015 Ayan Acharya, Joydeep Ghosh, Mingyuan Zhou

A gamma process dynamic Poisson factor analysis model is proposed to factorize a dynamic count matrix, whose columns are sequentially observed count vectors.

Data Augmentation

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