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Differentiable neural architecture search (DARTS) has gained much success in discovering flexible and diverse cell types. To reduce the evaluation gap, the supernet is expected to have identical layers with the target network. However, even…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Tao Huang , Shan You , Yibo Yang , Zhuozhuo Tu , Fei Wang , Chen Qian , Changshui Zhang

Random forest (RF) stands out as a highly favored machine learning approach for classification problems. The effectiveness of RF hinges on two key factors: the accuracy of individual trees and the diversity among them. In this study, we…

Machine Learning · Computer Science 2024-10-28 Ye-eun Kim , Seoung Yun Kim , Hyunjoong Kim

We propose a method that combines fixed point algorithms with a neural network to optimize jointly discrete and continuous variables in millimeter-wave communication systems, so that the users' rates are allocated fairly in a well-defined…

Information Theory · Computer Science 2021-08-23 Rafail Ismayilov , Renato L. G. Cavalcante , Sławomir Stańczak

Robotic telescopes present the opportunity for the sparse temporal placement of observations when period searching. We address the best way to place a limited number of observations to cover the dynamic range of frequencies required by an…

Astrophysics · Physics 2009-11-11 Eric S. Saunders , Tim Naylor , Alasdair Allan

This paper addresses the problem of optimizing sensor deployment locations to reconstruct and also predict a spatiotemporal field. A novel deep learning framework is developed to find a limited number of optimal sampling locations and based…

Signal Processing · Electrical Eng. & Systems 2019-10-30 Jiahong Chen , Teng Li , Jing Wang , Clarence W. de Silva

Computing the optimal solution to a spatial filtering problems in a Wireless Sensor Network can incur large bandwidth and computational requirements if an approach relying on data centralization is used. The so-called distributed adaptive…

Signal Processing · Electrical Eng. & Systems 2023-03-01 Charles Hovine , Alexander Bertrand

Stacking analysis is a means of detecting faint sources using a priori position information to estimate an aggregate signal from individually undetected objects. Confusion severely limits the effectiveness of stacking in deep surveys with…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 Peter Kurczynski , Eric Gawiser

Bias estimation or sensor registration is an essential step in ensuring the accuracy of global tracks in multisensor-multitarget tracking. Most previously proposed algorithms for bias estimation rely on local measurements in centralized…

Methodology · Statistics 2016-03-23 Ehsan Taghavi , R. Tharmarasa , T. Kirubarajan , Yaakov Bar-Shalom , Mike McDonald

Neural Radiance Fields (NeRF) offer the potential to benefit 3D reconstruction tasks, including aerial photogrammetry. However, the scalability and accuracy of the inferred geometry are not well-documented for large-scale aerial…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Ningli Xu , Rongjun Qin , Debao Huang , Fabio Remondino

Filter pruning has drawn more attention since resource constrained platform requires more compact model for deployment. However, current pruning methods suffer either from the inferior performance of one-shot methods, or the expensive time…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Dong Li , Sitong Chen , Xudong Liu , Yunda Sun , Li Zhang

Fibrillar adhesion, observed in animals like beetles, spiders, and geckos, relies on nanoscopic or microscopic fibrils to enhance surface adhesion via 'contact splitting.' This concept has inspired engineering applications across robotics,…

Machine Learning · Computer Science 2024-10-08 Mohammad Shojaeifard , Matteo Ferraresso , Alessandro Lucantonio , Mattia Bacca

We present the design and test results of a compact optical fiber double-scrambler for high-resolution Doppler radial velocity instruments. This device consists of a single optic: a high-index $n$$\sim$2 ball lens that exchanges the near…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Samuel Halverson , Arpita Roy , Suvrath Mahadevan , Lawrence Ramsey , Eric Levi , Christian Schwab , Fred Hearty , Nick MacDonald

Adaptive stretching, where the post compression signal is iteratively stretched to maximize the correlation between the pre and post compression rf echo frames, has demonstrated superior performance compared to gradient based methods. At…

Tissues and Organs · Quantitative Biology 2022-10-25 Shaiban Ahmed , Rasheed Abid , S. Kaisar Alam

Microfluidic trapping arrays have proven to be efficient tools for various applications that require working at the single-cell level, such as cell-cell communication or fusion. Although several hydrodynamic trapping devices have already…

Feedback particle filter (FPF) is a numerical algorithm to approximate the solution of the nonlinear filtering problem in continuous-time settings. In any numerical implementation of the FPF algorithm, the main challenge is to numerically…

Optimization and Control · Mathematics 2019-10-01 Amirhossein Taghvaei , Prashant G. Mehta , Sean P. Meyn

The most promising approach to enhance network capacity for the next generation of wireless cellular networks (5G) is densification, which benefits from the extensive spatial reuse of the spectrum and the reduced distance between…

Information Theory · Computer Science 2016-11-17 Amir H. Jafari , David Lopez-Perez , Ming Ding , Jie Zhang

Direction-of-arrival (DOA) information is vital for multiple-input-multiple-output (MIMO) systems to complete localization and beamforming tasks. Switched antenna arrays have recently emerged as an effective solution to reduce the cost and…

Signal Processing · Electrical Eng. & Systems 2022-05-24 Hui Chen , Tarig Ballal , Mohammed E. Eltayeb , Tareq Y. Al-Naffouri

Reconfigurable Intelligent Surface (RIS) plays a pivotal role in the sixth generation networks to enhance communication rate and localization accuracy. In this letter, we propose a positioning algorithm in a RIS-assisted environment, where…

Signal Processing · Electrical Eng. & Systems 2024-07-10 Sajjad Ghiasvand , Arash Nasri , Ali H. Abdollahi Bafghi , Masoumeh Nasiri-Kenari

Two subspace fitting approaches are proposed for wideband near-field localization. Unlike in conventional far-field systems, where distance and angle can be estimated separately, spherical wave propagation in near-field systems couples…

Signal Processing · Electrical Eng. & Systems 2025-08-07 Ruiyun Zhang , Zhaolin Wang , Zhiqing Wei , Yuanwei Liu , Zehui Xiong , Zhiyong Feng

Robust and accurate detection of small moving targets in cluttered moving backgrounds is a significant and challenging problem for robotic visual systems to perform search and tracking tasks. Inspired by the neural circuitry of elementary…

Artificial Intelligence · Computer Science 2021-03-02 Xiao Huang , Hong Qiao , Hui Li , Zhihong Jiang