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Positional encoding (PE) underpins how permutation-invariant Transformers represent sequence order, yet how positional information is processed and stored remains poorly understood. Modern PE methods such as RoPE still struggle on tasks…

计算与语言 · 计算机科学 2026-05-29 Pierre-Antoine Lequeu , Camille Barboule , Benjamin Piwowarski

3D Large Vision-Language Models (3D LVLMs) built upon Large Language Models (LLMs) have achieved remarkable progress across various multimodal tasks. However, their inherited position-dependent modeling mechanism, Rotary Position Embedding…

计算机视觉与模式识别 · 计算机科学 2026-02-27 Guanting Ye , Qiyan Zhao , Wenhao Yu , Liangyu Yuan , Mingkai Li , Xiaofeng Zhang , Jianmin Ji , Yanyong Zhang , Qing Jiang , Ka-Veng Yuen

Coordinate-based Multi-Layer Perceptrons (MLPs) are known to have difficulty reconstructing high frequencies of the training data. A common solution to this problem is Positional Encoding (PE), which has become quite popular. However, PE…

机器学习 · 计算机科学 2024-11-11 Yair Bleiberg , Michael Werman

Rotary Positional Encoding (RoPE) is widely used in modern large language models. However, when sequences are extended beyond the range seen during training, rotary phases can enter out-of-distribution regimes, leading to spurious…

机器学习 · 计算机科学 2026-05-12 Riccardo Ali , Alessio Borgi , Christopher Irwin , Mario Severino , Pietro Liò

Transformer-based audio self-supervised learning (SSL) models commonly use spectrograms, vision-style Transformers, and masked modeling objectives. However, convolutional patchification with temporal downsampling lowers the effective…

声音 · 计算机科学 2026-05-15 Kohei Yamamoto , Kosuke Okusa

Symbol-level precoding (SLP) has recently emerged as a new paradigm for physical-layer transmit precoding in multiuser multi-input-multi-output (MIMO) channels. It exploits the underlying symbol constellation structure, which the…

信号处理 · 电气工程与系统科学 2022-05-04 Yatao Liu , Mingjie Shao , Wing-Kin Ma , Qiang Li

Masked signal modeling has greatly advanced self-supervised pre-training for language and 2D images. However, it is still not fully explored in 3D scene understanding. Thus, this paper introduces Masked Shape Prediction (MSP), a new…

计算机视觉与模式识别 · 计算机科学 2023-05-10 Li Jiang , Zetong Yang , Shaoshuai Shi , Vladislav Golyanik , Dengxin Dai , Bernt Schiele

This paper investigates the robust design of symbol-level precoding (SLP) for multiuser multiple-input multiple-output (MIMO) downlink transmission with imperfect channel state information (CSI) caused by channel aging. By utilizing the a…

信号处理 · 电气工程与系统科学 2024-02-08 Yafei Wang , Xinping Yi , Hongwei Hou , Wenjin Wang , Shi Jin

In radiological practice, multi-sequence MRI is routinely acquired to characterize anatomy and tissue. However, due to the heterogeneity of imaging protocols and contra-indications to contrast agents, some MRI sequences, e.g.…

图像与视频处理 · 电气工程与系统科学 2023-09-12 Yunjie Chen , Marius Staring , Jelmer M. Wolterink , Qian Tao

Deep neural networks are powerful tools for biomedical image segmentation. These models are often trained with heavy supervision, relying on pairs of images and corresponding voxel-level labels. However, obtaining segmentations of…

图像与视频处理 · 电气工程与系统科学 2020-04-30 Evan M. Yu , Juan Eugenio Iglesias , Adrian V. Dalca , Mert R. Sabuncu

The development of robust and generalisable models for encoding the spatio-temporal dynamics of human brain activity is crucial for advancing neuroscientific discoveries. However, significant individual variation in the organisation of the…

图像与视频处理 · 电气工程与系统科学 2024-06-12 Simon Dahan , Logan Z. J. Williams , Yourong Guo , Daniel Rueckert , Emma C. Robinson

We present a novel framework, Spatial Pyramid Attention Network (SPAN) for detection and localization of multiple types of image manipulations. The proposed architecture efficiently and effectively models the relationship between image…

计算机视觉与模式识别 · 计算机科学 2021-01-15 Xuefeng Hu , Zhihan Zhang , Zhenye Jiang , Syomantak Chaudhuri , Zhenheng Yang , Ram Nevatia

We propose spatially-adaptive normalization, a simple but effective layer for synthesizing photorealistic images given an input semantic layout. Previous methods directly feed the semantic layout as input to the deep network, which is then…

计算机视觉与模式识别 · 计算机科学 2019-11-06 Taesung Park , Ming-Yu Liu , Ting-Chun Wang , Jun-Yan Zhu

Neural fields (NeFs) have recently emerged as a state-of-the-art method for encoding spatio-temporal signals of various modalities. Despite the success of NeFs in reconstructing individual signals, their use as representations in downstream…

机器学习 · 计算机科学 2024-12-13 Miltiadis Kofinas , Samuele Papa , Efstratios Gavves

The measured spatiotemporal response of various physical processes is utilized to infer the governing partial differential equations (PDEs). We propose SimultaNeous Basis Function Approximation and Parameter Estimation (SNAPE), a technique…

机器学习 · 计算机科学 2021-09-17 Sutanu Bhowmick , Satish Nagarajaiah

Multi-Layer Perceptron (MLP) models are the foundation of contemporary point cloud processing. However, their complex network architectures obscure the source of their strength and limit the application of these models. In this article, we…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Yanmei Zou , Hongshan Yu , Yaonan Wang , Zhengeng Yang , Xieyuanli Chen , Kailun Yang , Naveed Akhtar

Experimental studies support the notion of spike-based neuronal information processing in the brain, with neural circuits exhibiting a wide range of temporally-based coding strategies to rapidly and efficiently represent sensory stimuli.…

神经与进化计算 · 计算机科学 2020-08-18 Brian Gardner , André Grüning

Machine learning offers promising methods for processing signals recorded with wearable devices such as surface electromyography (sEMG) and electroencephalography (EEG). However, in these applications, despite high within-session…

机器学习 · 计算机科学 2025-01-30 Joao Pereira , Michael Alummoottil , Dimitrios Halatsis , Dario Farina

Advancements in adapting deep convolution architectures for Spiking Neural Networks (SNNs) have significantly enhanced image classification performance and reduced computational burdens. However, the inability of Multiplication-Free…

神经与进化计算 · 计算机科学 2024-04-29 Boyan Li , Luziwei Leng , Shuaijie Shen , Kaixuan Zhang , Jianguo Zhang , Jianxing Liao , Ran Cheng

Hyperspectral images have significant applications in various domains, since they register numerous semantic and spatial information in the spectral band with spatial variability of spectral signatures. Two critical challenges in…

图像与视频处理 · 电气工程与系统科学 2023-07-21 Moule Lin , Weipeng Jing , Donglin Di , Guangsheng Chen , Houbing Song