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We present a new open-source cosmological code, called SWIFT, designed to solve the equations of hydrodynamics using a particle-based approach (Smooth Particle Hydrodynamics) on hybrid shared/distributed-memory architectures. SWIFT was…

分布式、并行与集群计算 · 计算机科学 2022-08-03 Matthieu Schaller , Pedro Gonnet , Aidan B. G. Chalk , Peter W. Draper

We propose a novel motion estimation/compensation (ME/MC) method for wavelet-based (in-band) motion compensated temporal filtering (MCTF), with application to low-bitrate video coding. Unlike the conventional in-band MCTF algorithms, which…

计算机视觉与模式识别 · 计算机科学 2017-05-17 Vildan Atalay Aydin , Hassan Foroosh

Convolutional Neural Network (CNN)-based filters have achieved significant performance in video artifacts reduction. However, the high complexity of existing methods makes it difficult to be applied in real usage. In this paper, a CNN-based…

图像与视频处理 · 电气工程与系统科学 2020-09-08 Chao Liu , Heming Sun , Jiro Katto , Xiaoyang Zeng , Yibo Fan

Creating high-fidelity, coherent long videos is a sought-after aspiration. While recent video diffusion models have shown promising potential, they still grapple with spatiotemporal inconsistencies and high computational resource demands.…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Yongjia Ma , Junlin Chen , Donglin Di , Qi Xie , Lei Fan , Wei Chen , Xiaofei Gou , Na Zhao , Xun Yang

Accurate emulation of multi-scale physical systems governed by PDEs demands models that remain stable over long autoregressive rollouts while preserving fine-scale structures. Deterministic emulators produce overly-smoothed predictions,…

Tight wavelet frames (TWFs) in \(L^2(\mathbb{R}^n)\) are versatile, and are practically useful due to their perfect reconstruction property. Nevertheless, existing TWF construction methods exhibit limitations, including a lack of specific…

泛函分析 · 数学 2025-05-19 Youngmi Hur , Hyojae Lim

White matter fiber clustering (WMFC) enables parcellation of white matter tractography for applications such as disease classification and anatomical tract segmentation. However, the lack of ground truth and the ambiguity of fiber data (the…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Yuqian Chen , Chaoyi Zhang , Yang Song , Nikos Makris , Yogesh Rathi , Weidong Cai , Fan Zhang , Lauren J. O'Donnell

Wireless channel foundation model (WCFM) is a task-agnostic AI model that is pre-trained to learn a universal channel representation for a wide range of communications and sensing tasks. While existing works on WCFM have demonstrated its…

信号处理 · 电气工程与系统科学 2026-01-09 Yuwei Wang , Li Sun , Tingting Yang , Yuxuan Shi , Maged Elkashlan , Xiao Tang

Deep neural networks have shown promise in collaborative filtering (CF). However, existing neural approaches are either user-based or item-based, which cannot leverage all the underlying information explicitly. We propose CF-UIcA, a neural…

机器学习 · 计算机科学 2018-07-06 Chao Du , Chongxuan Li , Yin Zheng , Jun Zhu , Bo Zhang

Temporal Reasoning is one important functionality for vision intelligence. In computer vision research community, temporal reasoning is usually studied in the form of video classification, for which many state-of-the-art Neural Network…

计算机视觉与模式识别 · 计算机科学 2022-03-14 Shiwen Zhang

This paper proposes CF-NADE, a neural autoregressive architecture for collaborative filtering (CF) tasks, which is inspired by the Restricted Boltzmann Machine (RBM) based CF model and the Neural Autoregressive Distribution Estimator…

信息检索 · 计算机科学 2016-06-01 Yin Zheng , Bangsheng Tang , Wenkui Ding , Hanning Zhou

Conventional affine formation control (AFC) empowers a network of agents with flexible but collective motions - a potential which has not yet been exploited for large-scale swarms. One of the key bottlenecks lies in the design of an…

系统与控制 · 电气工程与系统科学 2026-03-31 Zhonggang Li , Geert Leus , Raj Thilak Rajan

Learning based video compression attracts increasing attention in the past few years. The previous hybrid coding approaches rely on pixel space operations to reduce spatial and temporal redundancy, which may suffer from inaccurate motion…

图像与视频处理 · 电气工程与系统科学 2021-08-24 Zhihao Hu , Guo Lu , Dong Xu

Although synthetic data is widely promoted as a remedy, its prevailing production paradigm -- one optimizing for statistical smoothness -- systematically removes the long-tail, cognitively grounded irregularities that characterize human…

人工智能 · 计算机科学 2025-12-10 Zhongjie Jiang

Flash-based disk caches, for example Bcache and Flashcache, has gained tremendous popularity in industry in the last decade because of its low energy consumption, non-volatile nature and high I/O speed. But these cache systems have a worse…

操作系统 · 计算机科学 2023-11-16 Chaos Dong , Fang Wang , Jianshun Zhang

Convolutional Neural Networks (CNNs) are known for requiring extensive computational resources, and quantization is among the best and most common methods for compressing them. While aggressive quantization (i.e., less than 4-bits) performs…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Shahaf E. Finder , Yair Zohav , Maor Ashkenazi , Eran Treister

Recent progress in diffusion models significantly advances various image generation tasks. However, the current mainstream approach remains focused on building task-specific models, which have limited efficiency when supporting a wide range…

计算机视觉与模式识别 · 计算机科学 2026-01-08 Zhong-Yu Li , Ruoyi Du , Juncheng Yan , Le Zhuo , Qilong Wu , Zhen Li , Peng Gao , Zhanyu Ma , Ming-Ming Cheng

While recent advances in machine learning have equipped Weather Foundation Models (WFMs) with substantial generalization capabilities across diverse downstream tasks, the escalating computational requirements associated with their expanding…

We introduce a new efficient algorithm for Helmholtz problems in perforated domains with the design of the scheme allowing for possibly large wavenumbers. Our method is based upon the Wavelet-based Edge Multiscale Finite Element Method…

数值分析 · 数学 2019-06-21 Shubin Fu , Guanglian Li , Richard Craster , Sebastien Guenneau

We present Waver, a high-performance foundation model for unified image and video generation. Waver can directly generate videos with durations ranging from 5 to 10 seconds at a native resolution of 720p, which are subsequently upscaled to…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Yifu Zhang , Hao Yang , Yuqi Zhang , Yifei Hu , Fengda Zhu , Chuang Lin , Xiaofeng Mei , Yi Jiang , Bingyue Peng , Zehuan Yuan