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James Demmel

5 accepted papers

2026

3DGS$^2$-TR: A Scalable Second-Order Trust-Region Method for 3D Gaussian Splatting

ICML 2026poster

We propose 3DGS$^2$-TR, a second-order optimizer for accelerating the scene training problem in 3D Gaussian Splatting (3DGS). Unlike existing second-order approaches that rely on explicit or dense curvature representations, such as 3DGS-LM (Höllein et al., 2025) or 3DGS2 (Lan et al., 2025), our meth…

Cited by 0SourceScholar
2025

StarTrail: Concentric Ring Sequence Parallelism for Efficient Near-Infinite-Context Transformer Model Training

NeurIPS 2025poster

Training Transformer models on long sequences in a distributed setting poses significant challenges in terms of efficiency and scalability. Current methods are either constrained by the number of attention heads or excessive communication overheads. To address this problem, we propose StarTrail, a m…

Cited by 0SourceScholar
2023

Fast Exact Leverage Score Sampling from Khatri-Rao Products with Applications to Tensor Decomposition

NeurIPS 2023poster

We present a data structure to randomly sample rows from the Khatri-Rao product of several matrices according to the exact distribution of its leverage scores. Our proposed sampler draws each row in time logarithmic in the height of the Khatri-Rao product and quadratic in its column count, with pers…

2020

Large Batch Optimization for Deep Learning: Training BERT in 76 minutes

ICLR 2020poster

Training large deep neural networks on massive datasets is computationally very challenging. There has been recent surge in interest in using large batch stochastic optimization methods to tackle this issue. The most prominent algorithm in this line of research is LARS, which by employing layerwis…

Cited by 1205SourcecodeScholar
2016

Asynchronous Parallel Greedy Coordinate Descent

NeurIPS 2016poster

n this paper, we propose and study an Asynchronous parallel Greedy Coordinate Descent (Asy-GCD) algorithm for minimizing a smooth function with bounded constraints. At each iteration, workers asynchronously conduct greedy coordinate descent updates on a block of variables. In the first part of the…

Cited by 54SourcePDFScholar