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Channel charting (CC) has been proposed recently to enable logical positioning of user equipments (UEs) in the neighborhood of a multi-antenna base-station solely from channel-state information (CSI). CC relies on dimensionality reduction…

信号处理 · 电气工程与系统科学 2019-08-09 Pengzhi Huang , Oscar Castañeda , Emre Gönültaş , Saïd Medjkouh , Olav Tirkkonen , Tom Goldstein , Christoph Studer

Hyperspectral imaging (HSI) captures a greater level of spectral detail than traditional optical imaging, making it a potentially valuable intraoperative tool when precise tissue differentiation is essential. Hardware limitations of current…

Hyperspectral image (HSI) and SAR/LiDAR data offer complementary spectral and structural information for land-cover classification. However, their effective fusion remains challenging due to two major limitations: The spectral redundancy in…

图像与视频处理 · 电气工程与系统科学 2026-05-01 Chuanzheng Gong , Feng Gao , Junyan Lin , Junyu Dong , Qian Du

Channel estimation in wideband millimeter-wave (mmWave) systems is very challenging due to the beam squint effect. To solve the problem, we propose a learnable iterative shrinkage thresholding algorithm-based channel estimator (LISTA-CE)…

信号处理 · 电气工程与系统科学 2021-09-21 Weijie Jin , Hengtao He , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Recently, Graph Convolutional Network (GCN) has been widely used in Hyperspectral Image (HSI) classification due to its satisfactory performance. However, the number of labeled pixels is very limited in HSI, and thus the available…

计算机视觉与模式识别 · 计算机科学 2023-05-03 Wentao Yu , Sheng Wan , Guangyu Li , Jian Yang , Chen Gong

Due to the limited amount and imbalanced classes of labeled training data, the conventional supervised learning can not ensure the discrimination of the learned feature for hyperspectral image (HSI) classification. In this paper, we propose…

计算机视觉与模式识别 · 计算机科学 2018-09-06 Yan Ju , Lingling Li , Licheng Jiao , Zhongle Ren , Biao Hou , Shuyuan Yang

Meeting the high data rate demands of modern applications necessitates the utilization of high-frequency spectrum bands, including millimeter-wave and sub-terahertz bands. However, these frequencies require precise alignment of narrow…

信息论 · 计算机科学 2024-12-05 Sachira Karunasena , Erfan Khordad , Thomas Drummond , Rajitha Senanayake

The spread of deepfakes poses significant security concerns, demanding reliable detection methods. However, diverse generation techniques and class imbalance in datasets create challenges. We propose CAE-Net, a Convolution- and…

计算机视觉与模式识别 · 计算机科学 2025-12-29 Anindya Bhattacharjee , Kaidul Islam , Kafi Anan , Ashir Intesher , Abrar Assaeem Fuad , Utsab Saha , Hafiz Imtiaz

Constant envelope (CE) precoding design is of great interest for massive multiuser multi-input multi-output systems because it can significantly reduce hardware cost and power consumption. However, existing CE precoding algorithms are…

信号处理 · 电气工程与系统科学 2020-06-30 Yunfeng He , Hengtao , He , Chao-Kai Wen , Shi Jin

Masked auto-encoder pre-training has emerged as a prevalent technique for initializing and enhancing dense retrieval systems. It generally utilizes additional Transformer decoder blocks to provide sustainable supervision signals and…

信息检索 · 计算机科学 2024-04-23 Guangyuan Ma , Xing Wu , Zijia Lin , Songlin Hu

Hybrid methods that utilize both content and rating information are commonly used in many recommender systems. However, most of them use either handcrafted features or the bag-of-words representation as a surrogate for the content…

机器学习 · 计算机科学 2016-11-03 Hao Wang , Xingjian Shi , Dit-Yan Yeung

In this paper, we describe the "implicit autoencoder" (IAE), a generative autoencoder in which both the generative path and the recognition path are parametrized by implicit distributions. We use two generative adversarial networks to…

机器学习 · 计算机科学 2019-02-08 Alireza Makhzani

Deep learning became the method of choice in recent year for solving a wide variety of predictive analytics tasks. For sequence prediction, recurrent neural networks (RNN) are often the go-to architecture for exploiting sequential…

机器学习 · 计算机科学 2016-11-09 Kin Gwn Lore , Daniel Stoecklein , Michael Davies , Baskar Ganapathysubramanian , Soumik Sarkar

Motor imagery (MI)-based brain-computer interface (BCI) systems are being increasingly employed to provide alternative means of communication and control for people suffering from neuro-motor impairments, with a special effort to bring…

机器学习 · 计算机科学 2022-04-11 Alberto Zancanaro , Giulia Cisotto , João Ruivo Paulo , Gabriel Pires , Urbano J. Nunes

This paper introduces SS-MixNet, a lightweight and effective deep learning model for hyperspectral image (HSI) classification. The architecture integrates 3D convolutional layers for local spectral-spatial feature extraction with two…

计算机视觉与模式识别 · 计算机科学 2025-11-20 Mohammed Q. Alkhatib

Recent research has shown the advantages of using autoencoders based on deep neural networks for collaborative filtering. In particular, the recently proposed Mult-VAE model, which used the multinomial likelihood variational autoencoders,…

信息检索 · 计算机科学 2019-12-25 Ilya Shenbin , Anton Alekseev , Elena Tutubalina , Valentin Malykh , Sergey I. Nikolenko

End-to-end trained neural networks (NNs) are a compelling approach to autonomous vehicle control because of their ability to learn complex tasks without manual engineering of rule-based decisions. However, challenging road conditions,…

人工智能 · 计算机科学 2021-11-24 Alexander Amini , Ava Soleimany , Sertac Karaman , Daniela Rus

Scene graph generation aims to produce structured representations for images, which requires to understand the relations between objects. Due to the continuous nature of deep neural networks, the prediction of scene graphs is divided into…

计算机视觉与模式识别 · 计算机科学 2020-08-13 Meng Wei , Chun Yuan , Xiaoyu Yue , Kuo Zhong

Spectral Embedding (SE) has often been used to map data points from non-linear manifolds to linear subspaces for the purpose of classification and clustering. Despite significant advantages, the subspace structure of data in the original…

计算机视觉与模式识别 · 计算机科学 2023-05-16 Hira Yaseen , Arif Mahmood

The goal of Feature Selection - comprising filter, wrapper, and embedded approaches - is to find the optimal feature subset for designated downstream tasks. Nevertheless, current feature selection methods are limited by: 1) the selection…

机器学习 · 计算机科学 2023-09-18 Meng Xiao , Dongjie Wang , Min Wu , Pengfei Wang , Yuanchun Zhou , Yanjie Fu