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This paper introduces a two-and multi-level phase mask design for improved depth of focus. A novel technique is proposed incorporating cubic and generalized cubic wavefront coding (WFC). The obtained system is optical-electronic requiring…

光学 · 物理学 2017-07-26 Vladimir Katkovnik , Nicholas Hogasten , Karen Egiazarian

A general-purpose computational homogenization framework is proposed for the nonlinear dynamic analysis of membranes exhibiting complex microscale and/or mesoscale heterogeneity characterized by in-plane periodicity that cannot be…

计算工程、金融与科学 · 计算机科学 2021-01-28 Philip Avery , Daniel Z. Huang , Wanli He , Johanna Ehlers , Armen Derkevorkian , Charbel Farhat

Existing image-based rendering methods usually adopt depth-based image warping operation to synthesize novel views. In this paper, we reason the essential limitations of the traditional warping operation to be the limited neighborhood and…

计算机视觉与模式识别 · 计算机科学 2023-01-31 Mantang Guo , Junhui Hou , Jing Jin , Hui Liu , Huanqiang Zeng , Jiwen Lu

Diffusion models have recently achieved remarkable success in generative tasks (e.g., image and video generation), and the demand for high-quality content (e.g., 2K/4K videos) is rapidly increasing across various domains. However,…

Federated Learning (FL) has gained attention for addressing data scarcity and privacy concerns. While parallel FL algorithms like FedAvg exhibit remarkable performance, they face challenges in scenarios with diverse network speeds and…

机器学习 · 计算机科学 2024-05-20 Haoyue Song , Jiacheng Wang , Liansheng Wang

The paper presents a concept/technique to compress and synthesize complex material morphologies that is based on Wang tilings. Specifically, a microstructure is stored in a set of Wang tiles and its reconstruction is performed by means of a…

材料科学 · 物理学 2014-12-18 Martin Doškář , Jan Novák , Jan Zeman

New optical technologies offer the ability to reconfigure network topologies dynamically, rather than setting them once and for all. This is true in both optical wide area networks (optical WANs) and in datacenters, despite the many…

数据结构与算法 · 计算机科学 2020-01-23 Michael Dinitz , Benjamin Moseley

This paper proposes a fully decentralized federated learning (FL) scheme for Internet of Everything (IoE) devices that are connected via multi-hop networks. Because FL algorithms hardly converge the parameters of machine learning (ML)…

网络与互联网体系结构 · 计算机科学 2022-10-05 Akihito Taya , Takayuki Nishio , Masahiro Morikura , Koji Yamamoto

This paper investigates new families of compositional optimization problems, called $\underline{\bf n}$on-$\underline{\bf s}$mooth $\underline{\bf w}$eakly-$\underline{\bf c}$onvex $\underline{\bf f}$inite-sum $\underline{\bf c}$oupled…

最优化与控制 · 数学 2024-09-26 Quanqi Hu , Dixian Zhu , Tianbao Yang

Most action recognition solutions rely on dense sampling to precisely cover the informative temporal clip. Extensively searching temporal region is expensive for a real-world application. In this work, we focus on improving the inference…

计算机视觉与模式识别 · 计算机科学 2021-07-30 Chunhui Liu , Xinyu Li , Hao Chen , Davide Modolo , Joseph Tighe

Normalizing flows are a class of probabilistic generative models which allow for both fast density computation and efficient sampling and are effective at modelling complex distributions like images. A drawback among current methods is…

计算机视觉与模式识别 · 计算机科学 2020-10-28 Jason J. Yu , Konstantinos G. Derpanis , Marcus A. Brubaker

We propose Sequential Feature Filtering Classifier (FFC), a simple but effective classifier for convolutional neural networks (CNNs). With sequential LayerNorm and ReLU, FFC zeroes out low-activation units and preserves high-activation…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Minseok Seo , Jaemin Lee , Jongchan Park , Dong-Geol Choi

We introduce W\"urstchen, a novel architecture for text-to-image synthesis that combines competitive performance with unprecedented cost-effectiveness for large-scale text-to-image diffusion models. A key contribution of our work is to…

计算机视觉与模式识别 · 计算机科学 2024-05-31 Pablo Pernias , Dominic Rampas , Mats L. Richter , Christopher J. Pal , Marc Aubreville

World generation is a fundamental capability for applications like video games, simulation, and robotics. However, existing approaches face three main obstacles: controllability, scalability, and efficiency. End-to-end scene generation…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Han-Hung Lee , Cheng-Yu Yang , Yu-Lun Liu , Angel X. Chang

\textbf{G}raph \textbf{C}onvolutional \textbf{N}etwork (\textbf{GCN}) is widely used in graph data learning tasks such as recommendation. However, when facing a large graph, the graph convolution is very computationally expensive thus is…

机器学习 · 计算机科学 2021-01-19 Wenhui Yu , Zheng Qin

Network Function Virtualization (NFV) and Software Defined Networking (SDN) are technologies that recently acquired a great momentum thanks to their promise of being a flexible and cost-effective solution for replacing hardware-based,…

网络与互联网体系结构 · 计算机科学 2018-12-14 Tong Liu , Franco Callegati , Walter Cerroni , Chiara Contoli , Maurizio Gabbrielli , Saverio Giallorenzo

State-of-the-art music recommender systems are based on collaborative filtering, which builds upon learning similarities between users and songs from the available listening data. These approaches inherently face the cold-start problem, as…

信息检索 · 计算机科学 2022-07-21 Paul Magron , Cédric Févotte

Flat combining (FC) is a synchronization paradigm in which a single thread, holding a global lock, collects requests by multiple threads for accessing a concurrent data structure and applies their combined requests to it. Although FC is…

分布式、并行与集群计算 · 计算机科学 2021-12-10 Matan Rusanovsky , Hagit Attiya , Ohad Ben-Baruch , Tom Gerby , Danny Hendler , Pedro Ramalhete

Recent advances in text-to-video diffusion models have enabled high-quality video synthesis, but controllable generation remains challenging, particularly under limited data and compute. Existing fine-tuning methods for conditional…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Kinam Kim , Junha Hyung , Jaegul Choo

We propose a novel efficient and robust Wavelet-based Edge Multiscale Finite Element Method (WEMsFEM) motivated by \cite{MR3980476,GL18} to solve the singularly perturbed convection-diffusion equations. The main idea is to first establish a…

数值分析 · 数学 2024-11-12 Shubin Fu , Eric Chung , Guanglian Li