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In this study, an efficient stochastic gradient-free method, the ensemble neural networks (ENN), is developed. In the ENN, the optimization process relies on covariance matrices rather than derivatives. The covariance matrices are…

机器学习 · 统计学 2019-11-11 Yuntian Chen , Haibin Chang , Meng Jin , Dongxiao Zhang

Regression trees are one of the oldest forms of AI models, and their predictions can be made without a calculator, which makes them broadly useful, particularly for high-stakes applications. Within the large literature on regression trees,…

机器学习 · 计算机科学 2023-04-11 Rui Zhang , Rui Xin , Margo Seltzer , Cynthia Rudin

In the era of data proliferation, efficiently sifting through vast information to extract meaningful insights has become increasingly crucial. This paper addresses the computational overhead and resource inefficiency prevalent in existing…

信息检索 · 计算机科学 2024-12-20 Sheng Zhang , Maolin Wang , Yao Zhao , Chenyi Zhuang , Jinjie Gu , Ruocheng Guo , Xiangyu Zhao , Zijian Zhang , Hongzhi Yin

Neural Architecture Search (NAS) algorithms are intended to remove the burden of manual neural network design, and have shown to be capable of designing excellent models for a variety of well-known problems. However, these algorithms…

机器学习 · 计算机科学 2022-04-21 Rob Geada , Andrew Stephen McGough

While Convolutional Neural Networks (CNNs) excel at learning complex latent-space representations, their over-parameterization can lead to overfitting and reduced performance, particularly with limited data. This, alongside their high…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Manish Sharma , Jamison Heard , Eli Saber , Panos P. Markopoulos

NeuroEvolution is one of the most competitive evolutionary learning frameworks for designing novel neural networks for use in specific tasks, such as logic circuit design and digital gaming. However, the application of benchmark methods…

神经与进化计算 · 计算机科学 2021-10-11 Haoling Zhang , Chao-Han Huck Yang , Hector Zenil , Narsis A. Kiani , Yue Shen , Jesper N. Tegner

We propose a novel algorithm for the task of supervised discriminative distance learning by nonlinearly embedding vectors into a low dimensional Euclidean space. We work in the challenging setting where supervision is with constraints on…

计算机视觉与模式识别 · 计算机科学 2015-09-30 Gaurav Sharma , Bernt Schiele

Neural Architecture Search (NAS) methods autonomously discover high-accuracy neural network architectures, outperforming manually crafted ones. However, The NAS methods require high computational costs due to the high dimension search space…

神经与进化计算 · 计算机科学 2024-10-31 Zaniar Sharifi , Khabat Soltanian , Ali Amiri

Neural Stochastic Differential Equations (NSDEs) model the drift and diffusion functions of a stochastic process as neural networks. While NSDEs are known to make accurate predictions, their uncertainty quantification properties have been…

机器学习 · 计算机科学 2022-09-13 Andreas Look , Melih Kandemir , Barbara Rakitsch , Jan Peters

The performance of deep neural networks, such as Deep Belief Networks formed by Restricted Boltzmann Machines (RBMs), strongly depends on their training, which is the process of adjusting their parameters. This process can be posed as an…

神经与进化计算 · 计算机科学 2019-07-16 S. Ivvan Valdez , Alfonso Rojas-Domínguez

RES, a regularized stochastic version of the Broyden-Fletcher-Goldfarb-Shanno (BFGS) quasi-Newton method is proposed to solve convex optimization problems with stochastic objectives. The use of stochastic gradient descent algorithms is…

机器学习 · 计算机科学 2015-06-18 Aryan Mokhtari , Alejandro Ribeiro

Estimation of low-rank matrices is of significant interest in a range of contemporary applications. In this paper, we introduce a rank-one projection model for low-rank matrix recovery and propose a constrained nuclear norm minimization…

统计理论 · 数学 2014-12-10 T. Tony Cai , Anru Zhang

Recent advances show that Neural Architectural Search (NAS) method is able to find state-of-the-art image classification deep architectures. In this paper, we consider the one-shot NAS problem for resource constrained applications. This…

计算机视觉与模式识别 · 计算机科学 2020-01-01 Xiaojie Jin , Jiang Wang , Joshua Slocum , Ming-Hsuan Yang , Shengyang Dai , Shuicheng Yan , Jiashi Feng

Tensor parallelism is an essential technique for distributed training of large neural networks. However, automatically determining an optimal tensor parallel strategy is challenging due to the gigantic search space, which grows…

机器学习 · 计算机科学 2025-08-06 Ziji Shi , Le Jiang , Ang Wang , Jie Zhang , Chencan Wu , Yong Li , Xiaokui Xiao , Wei Lin , Jialin Li

Classical worst-case optimization theory neither explains the success of optimization in machine learning, nor does it help with step size selection. In this paper we demonstrate the viability and advantages of replacing the classical…

最优化与控制 · 数学 2024-10-16 Felix Benning , Leif Döring

Neural architecture search (NAS) has allowed for the automatic creation of new and effective neural network architectures, offering an alternative to the laborious process of manually designing complex architectures. However, traditional…

机器学习 · 计算机科学 2023-06-02 Aaron Serianni , Jugal Kalita

Neuroevolution has greatly promoted Deep Neural Network (DNN) architecture design and its applications, while there is a lack of methods available across different DNN types concerning both their scale and performance. In this study, we…

神经与进化计算 · 计算机科学 2023-02-03 Zhenhao Shuai , Hongbo Liu , Zhaolin Wan , Wei-Jie Yu , Jun Zhang

We present a novel method called TESALOCS (TEnsor SAmpling and LOCal Search) for multidimensional optimization, combining the strengths of gradient-free discrete methods and gradient-based approaches. The discrete optimization in our method…

最优化与控制 · 数学 2025-05-20 Konstantin Sozykin , Andrei Chertkov , Anh-Huy Phan , Ivan Oseledets , Gleb Ryzhakov

Solving the Goal-Conditioned Reward Sparse (GCRS) task is a challenging reinforcement learning problem due to the sparsity of reward signals. In this work, we propose a new formulation of GCRS tasks from the perspective of the drifted…

机器学习 · 计算机科学 2020-05-01 Hao Sun , Xinyu Pan , Bo Dai , Dahua Lin , Bolei Zhou

Neural architecture search (NAS) is a promising method for automatically design neural architectures. NAS adopts a search strategy to explore the predefined search space to find outstanding performance architecture with the minimum…

机器学习 · 计算机科学 2020-09-11 Chen Wei , Chuang Niu , Yiping Tang , Yue Wang , Haihong Hu , Jimin Liang
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