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3,282 Results Found

  • Article
  • Open Access
2 Citations
2,249 Views
18 Pages

19 July 2023

Representation learning-based hyperspectral target detection (HTD) methods generally follow a learning paradigm of single-layer or one-step representation residual learning and the target detection on original full spectral bands, which, in some case...

(This article belongs to the Special Issue Hyperspectral Images Processing and Classification Using Artificial Intelligence (AI) Techniques)
  • Article
  • Open Access
4 Citations
3,469 Views
15 Pages

SAR Target Configuration Recognition via Product Sparse Representation

  • Ming Liu,
  • Shichao Chen,
  • Fugang Lu and
  • Mengdao Xing

19 October 2018

Sparse representation (SR) has been verified to be an effective tool for pattern recognition. Considering the multiplicative speckle noise in synthetic aperture radar (SAR) images, a product sparse representation (PSR) algorithm is proposed to achiev...

(This article belongs to the Special Issue Automatic Target Recognition of High Resolution SAR/ISAR Images)
  • Article
  • Open Access
21 Citations
7,500 Views
19 Pages

19 January 2018

This paper proposes an automatic target recognition (ATR) method for synthetic aperture radar (SAR) images based on information-decoupled representation. A typical SAR image of a ground target can be divided into three parts: target region, shadow an...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
8 Citations
3,737 Views
20 Pages

Deep 1D Landmark Representation Learning for Space Target Pose Estimation

  • Shengli Liu,
  • Xiaowen Zhu,
  • Zewei Cao and
  • Gang Wang

18 August 2022

Monocular vision-based pose estimation for known uncooperative space targets plays an increasingly important role in on-orbit operations. The existing state-of-the-art methods of space target pose estimation build the 2D-3D correspondences to recover...

(This article belongs to the Special Issue Deep Learning and Computer Vision in Remote Sensing-II)
  • Article
  • Open Access
7 Citations
3,569 Views
18 Pages

15 November 2019

Synthetic aperture radar (SAR) target recognition under extended operating conditions (EOCs) is a challenging problem due to the complex application environment, especially for insufficient target variations and corrupted SAR images in the training s...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
7 Citations
2,670 Views
22 Pages

29 September 2024

Hyperspectral small target detection (HSTD) is a promising pixel-level detection task. However, due to the low contrast and imbalanced number between the target and the background spatially and the high dimensions spectrally, it is a challenging one....

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
27 Citations
4,167 Views
22 Pages

Mask Sparse Representation Based on Semantic Features for Thermal Infrared Target Tracking

  • Meihui Li,
  • Lingbing Peng,
  • Yingpin Chen,
  • Suqi Huang,
  • Feiyi Qin and
  • Zhenming Peng

21 August 2019

Thermal infrared (TIR) target tracking is a challenging task as it entails learning an effective model to identify the target in the situation of poor target visibility and clutter background. The sparse representation, as a typical appearance modeli...

(This article belongs to the Special Issue Remote Sensing for Target Object Detection and Identification)
  • Article
  • Open Access
4 Citations
5,675 Views
12 Pages

27 July 2015

A parallel search strategy based on sparse representation (PS-L1 tracker) is proposed in the particle filter framework. To obtain the weights of state particles, target templates are represented linearly with the dictionary of target candidates. Spar...

(This article belongs to the Special Issue Machine Learning Algorithms for Big Data)
  • Article
  • Open Access
33 Citations
4,401 Views
20 Pages

6 December 2020

In recent years, with the development of compressed sensing theory, sparse representation methods have been concerned by many researchers. Sparse representation can approximate the original image information with less space storage. Sparse representa...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
9 Citations
3,475 Views
17 Pages

9 September 2023

The prediction of drug–target interaction (DTI) is crucial to drug discovery. Although the interactions between the drug and target can be accurately verified by traditional biochemical experiments, the determination of DTI through biochemical...

(This article belongs to the Special Issue Advances in Computational Chemistry for Drug Design, Discovery and Screening)
  • Article
  • Open Access
15 Citations
8,912 Views
16 Pages

Performance Analysis of Mobile Laser Scanning Systems in Target Representation

  • Yi Lin,
  • Juha Hyyppä,
  • Harri Kaartinen and
  • Antero Kukko

24 June 2013

The technology of mobile laser scanning (MLS) has developed rapidly in recent years. This speedy development is evidenced by the emergence of a variety of MLS systems in commercial market and academic institutions. However, the producers tend to supp...

(This article belongs to the Special Issue Advances in Mobile Laser Scanning and Mobile Mapping)
  • Article
  • Open Access
57 Citations
6,310 Views
22 Pages

1 February 2018

The extraction of a valuable set of features and the design of a discriminative classifier are crucial for target recognition in SAR image. Although various features and classifiers have been proposed over the years, target recognition under extended...

(This article belongs to the Special Issue Classification and Feature Extraction for Remote Sensing Image Analysis)
  • Article
  • Open Access
6 Citations
2,286 Views
21 Pages

11 August 2025

This paper proposes a multi-scale time-frequency representation fusion network (MTRFN) for target recognition in synthetic aperture radar (SAR) imagery. Leveraging the spectral characteristics of six radar sub-views, the model incorporates a multi-sc...

(This article belongs to the Special Issue Advancing Synthetic Aperture Radar: Imaging, Processing, and Applications in Remote Sensing)
  • Article
  • Open Access
22 Citations
8,153 Views
19 Pages

14 May 2017

Target detection from hyperspectral images is an important problem but encounters a critical challenge of simultaneously reducing spectral redundancy and preserving the discriminative information. Recently, the joint sparse representation and multi-t...

(This article belongs to the Special Issue Learning to Understand Remote Sensing Images)
  • Article
  • Open Access
1 Citations
1,512 Views
31 Pages

Background: Single-target Alzheimer’s disease (AD) therapies have repeatedly failed to modify disease progression, highlighting a critical mismatch between multifactorial pathology and reductionist pharmacology. Methods: We developed a represen...

  • Article
  • Open Access
3 Citations
2,484 Views
13 Pages

19 June 2024

Accurately predicting drug–target interactions is a critical yet challenging task in drug discovery. Traditionally, pocket detection and drug–target affinity prediction have been treated as separate aspects of drug–target interactio...

(This article belongs to the Section Computational and Theoretical Chemistry)
  • Article
  • Open Access
364 Views
24 Pages

14 September 2026

Background/Objectives: Accurate drug-target affinity (DTA) prediction supports virtual screening, lead optimization, and drug repurposing. This study investigates whether replacing the conventional post-aggregation multilayer perceptron within a Grap...

(This article belongs to the Section AI in Drug Development)
  • Article
  • Open Access
35 Citations
5,025 Views
12 Pages

A Novel Method to Predict Drug-Target Interactions Based on Large-Scale Graph Representation Learning

  • Bo-Wei Zhao,
  • Zhu-Hong You,
  • Lun Hu,
  • Zhen-Hao Guo,
  • Lei Wang,
  • Zhan-Heng Chen and
  • Leon Wong

27 April 2021

Identification of drug-target interactions (DTIs) is a significant step in the drug discovery or repositioning process. Compared with the time-consuming and labor-intensive in vivo experimental methods, the computational models can provide high-quali...

(This article belongs to the Special Issue Circular RNAs: New Insights into the Molecular Biology of Cancer)
  • Article
  • Open Access
113 Citations
9,594 Views
21 Pages

20 August 2016

Automatic target recognition (ATR) in synthetic aperture radar (SAR) images plays an important role in both national defense and civil applications. Although many methods have been proposed, SAR ATR is still very challenging due to the complex applic...

  • Article
  • Open Access
35 Citations
7,003 Views
22 Pages

Total Variation Regularization Term-Based Low-Rank and Sparse Matrix Representation Model for Infrared Moving Target Tracking

  • Minjie Wan,
  • Guohua Gu,
  • Weixian Qian,
  • Kan Ren,
  • Qian Chen,
  • Hai Zhang and
  • Xavier Maldague

24 March 2018

Infrared moving target tracking plays a fundamental role in many burgeoning research areas of Smart City. Challenges in developing a suitable tracker for infrared images are particularly caused by pose variation, occlusion, and noise. In order to ove...

(This article belongs to the Special Issue Instrumenting Smart City Applications with Big Sensing and Earth Observatory Data: Tools, Methods and Techniques)
  • Article
  • Open Access
1 Citations
2,371 Views
19 Pages

28 October 2022

Recently, the monitoring efficiency and accuracy of visible and infrared video have been relatively low. In this paper, we propose an automatic target identification method using surveillance video, which provides an effective solution for the survei...

(This article belongs to the Special Issue Remote Sensing Image Processing and Application)
  • Article
  • Open Access
1 Citations
1,610 Views
22 Pages

Background: Target enhancement and non-target suppression are two critical mechanisms underlying representational prioritization in visual working memory (VWM). However, it remains unclear how VWM load modulates these prioritization mechanisms. Metho...

(This article belongs to the Section Cognitive, Social and Affective Neuroscience)
  • Article
  • Open Access
6 Citations
2,926 Views
17 Pages

30 January 2025

In drug development, drug-target affinity (DTA) prediction is a key indicator for assessing the drug’s efficacy and safety. Despite significant progress in deep learning-based affinity prediction approaches in recent years, there are still limi...

(This article belongs to the Section Molecular Pharmacology)
  • Article
  • Open Access
582 Views
33 Pages

Nevermore: Target-Conditioned Protein–Ligand Representation Learning for Multi-Objective Lead Optimization with Database-Grounded Retrieval

  • Mohammad Saleh Refahi,
  • Milad Toutounchian,
  • Bahrad A. Sokhansanj,
  • Hyunwoo Yoo,
  • James R. Brown,
  • Hai-Feng Ji and
  • Gail L. Rosen

21 June 2026

Recently, there has been great interest in AI-based approaches for de novo design of novel drug candidates. However, the generation of useful lead drug candidate compounds requires more than predicting engagement with the desired protein target. Cand...

(This article belongs to the Special Issue AI-Driven Innovations in NanoBioTech: From Molecular Mechanisms to Engineering Applications)
  • Article
  • Open Access
3 Citations
3,531 Views
15 Pages

25 September 2023

At present, the micro-Doppler effects of underwater targets is a challenging new research problem. This paper studies the micro-Doppler effect of underwater targets, analyzes the moving characteristics of underwater micro-motion components, establish...

(This article belongs to the Section Electronic Sensors)
  • Article
  • Open Access
39 Citations
7,609 Views
15 Pages

2 August 2017

In this paper, a parametric sparse representation (PSR) method is proposed for refocusing of moving targets in synthetic aperture radar (SAR) images. In regular SAR images, moving targets are defocused due to unknown motion parameters. Refocusing of...

(This article belongs to the Special Issue Ocean Remote Sensing with Synthetic Aperture Radar)
  • Article
  • Open Access
30 Citations
5,791 Views
19 Pages

29 November 2021

The identification of drug-target interaction (DTI) plays a key role in drug discovery and development. Benefitting from large-scale drug databases and verified DTI relationships, a lot of machine-learning methods have been developed to predict DTIs....

(This article belongs to the Special Issue Advances in Drug Design and Development for Human Therapeutics Using Artificial Intelligence)
  • Article
  • Open Access
8 Citations
4,258 Views
26 Pages

27 August 2020

At present, small dim moving target detection in hyperspectral imagery sequences is mainly based on anomaly detection (AD). However, most conventional detection algorithms only utilize the spatial spectral information and rarely employ the temporal s...

(This article belongs to the Special Issue Advances in Hyperspectral Data Exploitation)
  • Article
  • Open Access
192 Views
15 Pages

8 October 2026

Radar remote sensing provides an effective means of analyzing target characteristics for low-altitude surveillance, and the rapid growth and misuse of drones highlight the need for efficient classification of small aerial targets such as drones and b...

(This article belongs to the Special Issue Deep Learning for Multi-Source Remote Sensing Image Interpretation: Exploring, Rethinking, and Limiting Breakthroughs)
  • Article
  • Open Access
1 Citations
1,539 Views
22 Pages

Res-LK-SLR: A Residual Network Based on Large Kernels and Shapelet-Level Representations for Spatial Infrared Spot Target Discrimination

  • Huiying Liu,
  • Jiarong Wang,
  • Weijun Zhong,
  • Haitao Nie,
  • Xiaotong Deng,
  • Jiaqi Sun,
  • Ming Zhu and
  • Ming Wei

10 December 2024

Spatial infrared spot target (SIST) discrimination based on infrared radiation sequences (IRSs) can be considered a univariate trending time series classification task. However, due to the complexity of actual scenarios and the limited opportunities...

(This article belongs to the Special Issue Intelligent Processing and Analysis of Multi-Modal Remote Sensing Data)
  • Article
  • Open Access
13 Citations
5,137 Views
15 Pages

GraphMS: Drug Target Prediction Using Graph Representation Learning with Substructures

  • Shicheng Cheng,
  • Liang Zhang,
  • Bo Jin,
  • Qiang Zhang,
  • Xinjiang Lu,
  • Mao You and
  • Xueqing Tian

4 April 2021

The prediction of drug–target interactions is always a key task in the field of drug redirection. However, traditional methods of predicting drug–target interactions are either mediocre or rely heavily on data stacking. In this work, we proposed our...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
29 Citations
6,169 Views
18 Pages

Radar Target Recognition Using Salient Keypoint Descriptors and Multitask Sparse Representation

  • Ayoub Karine,
  • Abdelmalek Toumi,
  • Ali Khenchaf and
  • Mohammed El Hassouni

28 May 2018

In this paper, we propose a novel approach to recognize radar targets on inverse synthetic aperture radar (ISAR) and synthetic aperture radar (SAR) images. This approach is based on the multiple salient keypoint descriptors (MSKD) and multitask spars...

(This article belongs to the Special Issue Radar Remote Sensing of Oceans and Coastal Areas)
  • Article
  • Open Access
1 Citations
911 Views
28 Pages

To address the challenge of detecting weak targets with small radar cross-sections (RCS), this work explores an integrated framework that leverages cross-level multimodal fusion of radar echoes. This method considers the target’s motion propert...

(This article belongs to the Section Ocean Engineering)
  • Article
  • Open Access
103 Citations
8,307 Views
11 Pages

Sparse Representation-Based SAR Image Target Classification on the 10-Class MSTAR Data Set

  • Haibo Song,
  • Kefeng Ji,
  • Yunshu Zhang,
  • Xiangwei Xing and
  • Huanxin Zou

20 January 2016

Recent years have witnessed an ever-mounting interest in the research of sparse representation. The framework, Sparse Representation-based Classification (SRC), has been widely applied as a classifier in numerous domains, among which Synthetic Apertu...

  • Article
  • Open Access
12 Citations
5,110 Views
21 Pages

Two-Stage Multi-Task Representation Learning for Synthetic Aperture Radar (SAR) Target Images Classification

  • Xinzheng Zhang,
  • Yijian Wang,
  • Zhiying Tan,
  • Dong Li,
  • Shujun Liu,
  • Tao Wang and
  • Yongming Li

1 November 2017

In this paper, we propose a two-stage multi-task learning representation method for the classification of synthetic aperture radar (SAR) target images. The first stage of the proposed approach uses multi-features joint sparse representation learning,...

(This article belongs to the Section Remote Sensors)
  • Article
  • Open Access
2 Citations
2,078 Views
16 Pages

14 March 2024

Animal tracking is crucial for understanding migration, habitat selection, and behavior patterns. However, challenges in video data acquisition and the unpredictability of animal movements have hindered progress in this field. To address these challe...

(This article belongs to the Special Issue Mathematical Modeling and Computer Vision in Animal Activity or Behavior)
  • Article
  • Open Access
56 Citations
8,356 Views
20 Pages

Sparse Representation for Infrared Dim Target Detection via a Discriminative Over-Complete Dictionary Learned Online

  • Zheng-Zhou Li,
  • Jing Chen,
  • Qian Hou,
  • Hong-Xia Fu,
  • Zhen Dai,
  • Gang Jin,
  • Ru-Zhang Li and
  • Chang-Ju Liu

27 May 2014

It is difficult for structural over-complete dictionaries such as the Gabor function and discriminative over-complete dictionary, which are learned offline and classified manually, to represent natural images with the goal of ideal sparseness and to...

(This article belongs to the Special Issue Detection and Tracking of Targets in Forward-Looking InfraRed (FLIR) Imagery)
  • Article
  • Open Access
4 Citations
3,388 Views
19 Pages

16 December 2022

Many radar applications, such as system design and testing and target detection and recognition, need to compress and rapidly reconstruct the target-scattering characteristics data through some suitable sparse representations, while the scattering ce...

(This article belongs to the Special Issue Recent Advancements and Applications of Computational Electromagnetics)
  • Article
  • Open Access
326 Views
27 Pages

2 August 2026

Accurate target detection in side-scan sonar imagery is important for marine resource investigation, underwater infrastructure inspection, and maritime security. However, Side-scan sonar images are often affected by low contrast, acoustic speckle, we...

  • Article
  • Open Access
407 Views
41 Pages

8 September 2026

Accurate daily forecasts of thermal generation, renewable generation, hydropower, and imported electricity are essential for spot-market trading and day-ahead scheduling. However, short training histories, incomplete operational information, and dist...

(This article belongs to the Section F1: Electrical Power System)
  • Article
  • Open Access
292 Views
22 Pages

1 October 2026

Open-set synthetic aperture radar (SAR) automatic target recognition must not only classify familiar targets accurately, but also reject target categories that are absent from training. This task is particularly challenging because aspect-dependent s...

(This article belongs to the Special Issue Robust Perception in Open and Data-Limited Environments: From Earth to Deep Space)
  • Article
  • Open Access
5 Citations
4,731 Views
29 Pages

15 April 2018

Scene classification on remote sensing imagery is usually based on supervised learning but collecting labelled data in remote sensing domains is expensive and time-consuming. Bag of Visual Words (BOVW) achieves great success in scene classification b...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
22 Citations
11,633 Views
19 Pages

Connectivity of Protected Areas: Effect of Human Pressure and Subnational Contributions in the Ecoregions of Tropical Andean Countries

  • Luis Santiago Castillo,
  • Camilo Andrés Correa Ayram,
  • Clara L. Matallana Tobón,
  • Germán Corzo,
  • Alexandra Areiza,
  • Roy González-M.,
  • Felipe Serrano,
  • Luis Chalán Briceño,
  • Felipe Sánchez Puertas and
  • Oscar Godínez-Gómez
  • + 10 authors

23 July 2020

Conservationists recognize the value of protected area (PA) systems, with adequate coverage, ecological representation, connection, and management to deliver conservation benefits. Yet, governments primarily focus on coverage, disregarding quantifica...

  • Article
  • Open Access
4 Citations
2,135 Views
9 Pages

1 April 2022

In this study, a novel feature learning method for synthetic aperture radar (SAR) image automatic target recognition is presented. It is based on spatial pyramid matching (SPM), which represents an image by concatenating the pooling feature vectors t...

(This article belongs to the Special Issue Optoelectronic Materials, Devices, and Applications)
  • Article
  • Open Access
8 Citations
3,016 Views
18 Pages

MGACL: Prediction Drug–Protein Interaction Based on Meta-Graph Association-Aware Contrastive Learning

  • Pinglu Zhang,
  • Peng Lin,
  • Dehai Li,
  • Wanchun Wang,
  • Xin Qi,
  • Jing Li and
  • Jianshe Xiong

8 October 2024

The identification of drug–target interaction (DTI) is crucial for drug discovery. However, how to reduce the graph neural network’s false positives due to its bias and negative transfer in the original bipartite graph remains to be clari...

  • Article
  • Open Access
22 Citations
5,110 Views
20 Pages

A Robust Drug–Target Interaction Prediction Framework with Capsule Network and Transfer Learning

  • Yixian Huang,
  • Hsi-Yuan Huang,
  • Yigang Chen,
  • Yang-Chi-Dung Lin,
  • Lantian Yao,
  • Tianxiu Lin,
  • Junlin Leng,
  • Yuan Chang,
  • Yuntian Zhang and
  • Hsien-Da Huang
  • + 4 authors

14 September 2023

Drug–target interactions (DTIs) are considered a crucial component of drug design and drug discovery. To date, many computational methods were developed for drug–target interactions, but they are insufficiently informative for accurately...

(This article belongs to the Special Issue Machine Learning Applications in Bioinformatics and Biomedicine)
  • Article
  • Open Access
12 Citations
3,014 Views
12 Pages

11 November 2021

The marine environment is complex and changeable, and the interference of noise and reverberation seriously affects the classification performance of active sonar equipment. In particular, when the targets to be measured have similar characteristics,...

(This article belongs to the Topic Applied Computer Vision and Pattern Recognition)
  • Feature Paper
  • Article
  • Open Access
14 Citations
3,970 Views
17 Pages

15 January 2019

Target detection is an active area in hyperspectral imagery (HSI) processing. Many algorithms have been proposed for the past decades. However, the conventional detectors mainly benefit from the spectral information without fully exploiting the spati...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
1,443 Views
24 Pages

17 September 2025

Synthetic Aperture Radar (SAR) incremental target detection faces challenges from the limits of incremental learning frameworks and distinctive properties of SAR imagery. The limited spatial representation of targets, combined with strong background...

(This article belongs to the Special Issue SAR Target Detection and Recognition with Intelligent Methods and Its Applications)
  • Article
  • Open Access
724 Views
25 Pages

18 June 2026

Existing drug–target interaction (DTI) prediction methods still face challenges caused by sparse interaction data, complex multi-source relationships, and imbalanced information contributions among different nodes. In this study, we propose NAF...

(This article belongs to the Special Issue Computational Pharmacology: Advances in Computational Modeling of Drug–Receptor Interactions and Pharmacokinetics)

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