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Dimensionality reduction (DR) on the manifold includes effective methods which project the data from an implicit relational space onto a vectorial space. Regardless of the achievements in this area, these algorithms suffer from the lack of…

机器学习 · 计算机科学 2019-09-23 Babak Hosseini , Barbara Hammer

Off-policy deep reinforcement learning algorithms commonly compensate for overestimation bias during temporal-difference learning by utilizing pessimistic estimates of the expected target returns. In this work, we propose Generalized…

机器学习 · 计算机科学 2023-03-07 Edoardo Cetin , Oya Celiktutan

Ground penetrating radar (GPR) is an efficient technique used for rapidly recognizing embedded rebar in concrete structures. However, due to the difficulty in extracting signals from GPR data and the intrinsic coupling between the rebar…

图像与视频处理 · 电气工程与系统科学 2020-05-21 Zhongming Xiang , Ge Ou , Abbas Rashidi

Offline Goal-Conditioned RL (GCRL) offers a feasible paradigm for learning general-purpose policies from diverse and multi-task offline datasets. Despite notable recent progress, the predominant offline GCRL methods, mainly model-free, face…

机器学习 · 计算机科学 2024-05-17 Mianchu Wang , Rui Yang , Xi Chen , Hao Sun , Meng Fang , Giovanni Montana

Dictionary Learning (DL) is one of the leading sparsity promoting techniques in the context of image classification, where the "dictionary" matrix D of images and the sparse matrix X are determined so as to represent a redundant image…

数值分析 · 数学 2022-03-10 Domitilla Brandoni , Margherita Porcelli , Valeria Simoncini

With rising uncertainty in the real world, online Reinforcement Learning (RL) has been receiving increasing attention due to its fast learning capability and improving data efficiency. However, online RL often suffers from complex Value…

机器学习 · 计算机科学 2022-01-25 Guang Yang , Xingguo Chen , Shangdong Yang , Huihui Wang , Shaokang Dong , Yang Gao

In this paper, a deep reinforcement learning (DRL) method is proposed to address the problem of UAV navigation in an unknown environment. However, DRL algorithms are limited by the data efficiency problem as they typically require a huge…

机器人学 · 计算机科学 2020-08-07 Lei He , Nabil Aouf , James F. Whidborne , Bifeng Song

Deep learning has become the workhorse for a wide range of natural language processing applications. But much of the success of deep learning relies on annotated examples. Annotation is time-consuming and expensive to produce at scale. Here…

计算与语言 · 计算机科学 2020-09-01 Hai Wang

The popularity of Software Defined Networks (SDNs) has grown in recent years, mainly because of their ability to simplify network management and improve network flexibility. However, this also makes them vulnerable to various types of cyber…

机器学习 · 计算机科学 2024-09-02 Osama Mustafa , Khizer Ali , Talha Naqash

Subsurface evaluation of railway tracks is crucial for safe operation, as it allows for the early detection and remediation of potential structural weaknesses or defects that could lead to accidents or derailments. Ground Penetrating Radar…

机器学习 · 计算机科学 2025-01-22 Farhad Kooban , Aleksandra Radlińska , Reza Mousapour , Maryam Saraei

Object-Centric Learning (OCL) represents dense image or video pixels as sparse object features. Representative methods utilize discrete representation composed of Variational Autoencoder (VAE) template features to suppress pixel-level…

计算机视觉与模式识别 · 计算机科学 2024-12-23 Rongzhen Zhao , Vivienne Wang , Juho Kannala , Joni Pajarinen

Recent work has shown that more effective dense retrieval models can be obtained by distilling ranking knowledge from an existing base re-ranking model. In this paper, we propose a generic curriculum learning based optimization framework…

信息检索 · 计算机科学 2022-04-29 Hansi Zeng , Hamed Zamani , Vishwa Vinay

Knowledge Distillation (KD) is a well-known training paradigm in deep neural networks where knowledge acquired by a large teacher model is transferred to a small student. KD has proven to be an effective technique to significantly improve…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Philip de Rijk , Lukas Schneider , Marius Cordts , Dariu M. Gavrila

Synthetic Aperture Radar (SAR) images are commonly utilized in military applications for automatic target recognition (ATR). Machine learning (ML) methods, such as Convolutional Neural Networks (CNN) and Graph Neural Networks (GNN), are…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Sasindu Wijeratne , Bingyi Zhang , Rajgopal Kannan , Viktor Prasanna , Carl Busart

This paper proposes a novel algorithm for image phase retrieval, i.e., for recovering complex-valued images from the amplitudes of noisy linear combinations (often the Fourier transform) of the sought complex images. The algorithm is…

信号处理 · 电气工程与系统科学 2018-10-19 Joshin P. Krishnan , José M. Bioucas-Dias , Vladimir Katkovnik

Cognitive radars are systems that rely on learning through interactions of the radar with the surrounding environment. To realize this, radar transmit parameters can be adapted such that they facilitate some downstream task. This paper…

信号处理 · 电气工程与系统科学 2021-12-15 Tristan S. W. Stevens , R. Firat Tigrek , Eric S. Tammam , Ruud J. G. van Sloun

Over the past decade, learning a dictionary from input images for sparse modeling has been one of the topics which receive most research attention in image processing and compressed sensing. Most existing dictionary learning methods…

图像与视频处理 · 电气工程与系统科学 2021-04-27 Kai Liu , Yongjian Zhao , Hua Wang

A promising characteristic of Deep Reinforcement Learning (DRL) is its capability to learn optimal policy in an end-to-end manner without relying on feature engineering. However, most approaches assume a fully observable state space, i.e.…

机器学习 · 计算机科学 2021-09-14 Lingheng Meng , Rob Gorbet , Dana Kulić

6G industrial in-X subnetworks are expected to support highly time-critical alarm reporting in large-scale environments characterized by mobility, bursty event-driven traffic, and limited radio resources. In such settings, conventional…

系统与控制 · 电气工程与系统科学 2026-05-08 Samira Abdelrahman , Hossam Farag , Gilberto Berardinelli

Classification methods based on sparse estimation have drawn much attention recently, due to their effectiveness in processing high-dimensional data such as images. In this paper, a method to improve the performance of a sparse…