no code implementations • 21 Mar 2024 • Zhan Gao, Guang Yang, Amanda Prorok
By introducing two sub-objectives of multi-agent navigation and environment optimization, we propose an $\textit{agent-environment co-optimization}$ problem and develop a $\textit{coordinated algorithm}$ that alternates between these sub-objectives to search for an optimal synthesis of agent actions and obstacle configurations in the environment; ultimately, improving the navigation performance.
no code implementations • 4 Dec 2023 • Zhan Gao, Amanda Prorok, Elvin Isufi
Analyzing the stability of graph neural networks (GNNs) under topological perturbations is key to understanding their transferability and the role of each architecture component.
no code implementations • 18 Nov 2023 • Boyang Deng, Xin Wen, Zhan Gao
In this paper, we proposed a new evaluation standard derived from dataset standard deviation(STD) for evaluating detection performance, validating the viability of using an artificial neural network model to do fruit sugar degree nondestructive detection.
no code implementations • 27 Jun 2023 • Zhan Gao, Aryan Mokhtari, Alec Koppel
Interestingly, our established non-asymptotic superlinear convergence rate demonstrates an explicit trade-off between the convergence speed and memory requirement, which to our knowledge, is the first of its kind.
1 code implementation • 24 Jun 2023 • Jasmine Bayrooti, Zhan Gao, Amanda Prorok
Furthermore, we show that it is possible to learn a model achieving high accuracies, within 3% of DP-SGD on MNIST under (1, 10^-5)-differential privacy and within 6% of DP-SGD on CIFAR-100 under (10, 10^-5)-differential privacy, without ever sharing raw data with other agents.
no code implementations • 18 May 2023 • Zhan Gao, Amanda Prorok
The goal of this paper is to consider the environment as a decision variable in a system-level optimization problem, where both agent performance and environment cost are incorporated.
no code implementations • 8 Mar 2023 • Zhan Gao, Guang Yang, Amanda Prorok
Control barrier functions (CBFs) enable guaranteed safe multi-agent navigation in the continuous domain.
1 code implementation • 28 Feb 2023 • Zhan Gao, M. Hashem Pesaran
The utility of the proposed estimator is illustrated by estimating the distribution of returns to education in the U. S. by gender and educational levels.
no code implementations • 16 Feb 2023 • Zhan Gao, Deniz Gunduz
This paper proposes graph neural networks over the air (AirGNNs), a novel GNN architecture that incorporates the communication model into the architecture.
no code implementations • 13 Nov 2022 • Zhan Gao, Elvin Isufi
Stability of graph neural networks (GNNs) characterizes how GNNs react to graph perturbations and provides guarantees for architecture performance in noisy scenarios.
no code implementations • 30 Oct 2022 • Zhan Gao, Yulin Shao, Deniz Gunduz, Amanda Prorok
Wireless local area networks (WLANs) manage multiple access points (APs) and assign scarce radio frequency resources to APs for satisfying traffic demands of associated user devices.
no code implementations • 22 Sep 2022 • Zhan Gao, Amanda Prorok
Traditional approaches to the design of multi-agent navigation algorithms consider the environment as a fixed constraint, despite the obvious influence of spatial constraints on agents' performance.
1 code implementation • 18 Jul 2022 • Hegui Zhu, Zhan Gao, Jiayi Wang, Yange Zhou, Chengqing Li
The comprehensive experiments on three fine-grained benchmark datasets for two few-shot tasks verify that FicNet has excellent performance compared to the state-of-the-art methods.
no code implementations • 29 Jan 2022 • Zhan Gao, Elvin Isufi
To overcome this issue, we propose a variance-constrained optimization problem for SGNNs, balancing the expected performance and the stochastic deviation.
no code implementations • 19 Jul 2021 • Zhan Gao, Fernando Gama, Alejandro Ribeiro
At training time, the joint wide and deep architecture learns nonlinear representations from data.
no code implementations • 19 Jun 2021 • Zhan Gao, Elvin Isufi, Alejandro Ribeiro
In particular, it proves the expected output difference between the GCNN over random perturbed graphs and the GCNN over the nominal graph is upper bounded by a factor that is linear in the link loss probability.
no code implementations • 5 Jun 2021 • Zhan Gao, Subhrajit Bhattacharya, Leiming Zhang, Rick S. Blum, Alejandro Ribeiro, Brian M. Sadler
Graph neural networks (GNNs) are processing architectures that exploit graph structural information to model representations from network data.
no code implementations • 12 Oct 2020 • Zhan Gao, Fernando Gama, Alejandro Ribeiro
Spherical convolutional neural networks (Spherical CNNs) learn nonlinear representations from 3D data by exploiting the data structure and have shown promising performance in shape analysis, object classification, and planning among others.
no code implementations • 27 Jul 2020 • Zhan Gao, Mark Eisen, Alejandro Ribeiro
This paper investigates the general problem of resource allocation for mitigating channel fading effects in Free Space Optical (FSO) communications.
no code implementations • 2 Jul 2020 • Zhan Gao, Alec Koppel, Alejandro Ribeiro
Stochastic gradient descent is a canonical tool for addressing stochastic optimization problems, and forms the bedrock of modern machine learning and statistics.
no code implementations • 26 Jun 2020 • Zhan Gao, Mark Eisen, Alejandro Ribeiro
This paper investigates the optimal resource allocation in free space optical (FSO) fronthaul networks.
no code implementations • 11 Jun 2020 • Zhan Gao, Fernando Gama, Alejandro Ribeiro
At testing time, the deep part (nonlinear) is left unchanged, while the wide part is retrained online, leading to a convex problem.
no code implementations • 4 Jun 2020 • Zhan Gao, Elvin Isufi, Alejandro Ribeiro
Graph neural networks (GNNs) model nonlinear representations in graph data with applications in distributed agent coordination, control, and planning among others.
no code implementations • 21 Jun 2019 • Zhan Gao, Mark Eisen, Alejandro Ribeiro
Radio on Free Space Optics (RoFSO), as a universal platform for heterogeneous wireless services, is able to transmit multiple radio frequency signals at high rates in free space optical networks.
no code implementations • 7 Oct 2018 • Ji Hyung Lee, Zhentao Shi, Zhan Gao
This new finding motivates a novel post-selection adaptive LASSO, which we call the twin adaptive LASSO (TAlasso), to restore variable selection consistency.
3 code implementations • 27 Jun 2018 • Zhan Gao, Zhentao Shi
Economists specify high-dimensional models to address heterogeneity in empirical studies with complex big data.
Computation Econometrics