Search Results for author: Ashley Prater-Bennette

Found 10 papers, 3 papers with code

Large-Scale Non-convex Stochastic Constrained Distributionally Robust Optimization

no code implementations1 Apr 2024 Qi Zhang, Yi Zhou, Ashley Prater-Bennette, Lixin Shen, Shaofeng Zou

We prove that our algorithm finds an $\epsilon$-stationary point with a computational complexity of $\mathcal O(\epsilon^{-3k_*-5})$, where $k_*$ is the parameter of the Cressie-Read divergence.

Factorized Tensor Networks for Multi-Task and Multi-Domain Learning

no code implementations9 Oct 2023 Yash Garg, Nebiyou Yismaw, Rakib Hyder, Ashley Prater-Bennette, M. Salman Asif

In this paper, we propose a factorized tensor network (FTN) that can achieve accuracy comparable to independent single-task/domain networks with a small number of additional parameters.

Tensor Networks

Robust Multimodal Learning with Missing Modalities via Parameter-Efficient Adaptation

no code implementations6 Oct 2023 Md Kaykobad Reza, Ashley Prater-Bennette, M. Salman Asif

We conduct a series of experiments to highlight the missing modality robustness of our proposed method on 5 different datasets for multimodal semantic segmentation, multimodal material segmentation, and multimodal sentiment analysis tasks.

Multimodal Sentiment Analysis Semantic Segmentation

MMSFormer: Multimodal Transformer for Material and Semantic Segmentation

1 code implementation7 Sep 2023 Md Kaykobad Reza, Ashley Prater-Bennette, M. Salman Asif

Furthermore, our ablation studies also highlight the capacity of different input modalities to improve performance in the identification of different types of materials.

Segmentation Semantic Segmentation +1

Model-Free Robust Average-Reward Reinforcement Learning

no code implementations17 May 2023 Yue Wang, Alvaro Velasquez, George Atia, Ashley Prater-Bennette, Shaofeng Zou

Robust Markov decision processes (MDPs) address the challenge of model uncertainty by optimizing the worst-case performance over an uncertainty set of MDPs.

Q-Learning reinforcement-learning

Robust Average-Reward Markov Decision Processes

no code implementations2 Jan 2023 Yue Wang, Alvaro Velasquez, George Atia, Ashley Prater-Bennette, Shaofeng Zou

We derive the robust Bellman equation for robust average-reward MDPs, prove that the optimal policy can be derived from its solution, and further design a robust relative value iteration algorithm that provably finds its solution, or equivalently, the optimal robust policy.

Incremental Task Learning with Incremental Rank Updates

1 code implementation19 Jul 2022 Rakib Hyder, Ken Shao, Boyu Hou, Panos Markopoulos, Ashley Prater-Bennette, M. Salman Asif

Our method also offers better memory efficiency compared to episodic memory- and mask-based approaches.

Continual Learning

Continual Learning via Low-Rank Network Updates

no code implementations29 Sep 2021 Rakib Hyder, Ken Shao, Boyu Hou, Panos Markopoulos, Ashley Prater-Bennette, Salman Asif

To update the network for a new task, we learn a low-rank (or rank-1) matrix and add that to the weights of every layer.

Continual Learning

Scaling and Scalability: Provable Nonconvex Low-Rank Tensor Estimation from Incomplete Measurements

1 code implementation29 Apr 2021 Tian Tong, Cong Ma, Ashley Prater-Bennette, Erin Tripp, Yuejie Chi

Tensors, which provide a powerful and flexible model for representing multi-attribute data and multi-way interactions, play an indispensable role in modern data science across various fields in science and engineering.

Attribute

The Proximity Operator of the Log-Sum Penalty

no code implementations3 Mar 2021 Ashley Prater-Bennette, Lixin Shen, Erin E. Tripp

The log-sum penalty is often adopted as a replacement for the $\ell_0$ pseudo-norm in compressive sensing and low-rank optimization.

Compressive Sensing Optimization and Control 49J53, 49J52, 90C26

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