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Modeling complex spatiotemporal dynamical systems, such as the reaction-diffusion processes, have largely relied on partial differential equations (PDEs). However, due to insufficient prior knowledge on some under-explored dynamical…

机器学习 · 计算机科学 2023-05-23 Chengping Rao , Pu Ren , Qi Wang , Oral Buyukozturk , Hao Sun , Yang Liu

In the area of 3D shape analysis, the geometric properties of a shape have long been studied. Instead of directly extracting representative features using expert-designed descriptors or end-to-end deep neural networks, this paper is…

计算机视觉与模式识别 · 计算机科学 2021-12-22 Zongji Wang , Yunfei Liu , Feng Lu

Despite significant advancements, segmentation based on deep neural networks in medical and surgical imaging faces several challenges, two of which we aim to address in this work. First, acquiring complete pixel-level segmentation labels…

计算机视觉与模式识别 · 计算机科学 2026-04-09 Junwen Wang , Zhonghao Wang , Oscar MacCormac , Jonathan Shapey , Tom Vercauteren

In our previous work, we proposed a discriminative autoencoder (DcAE) for speech recognition. DcAE combines two training schemes into one. First, since DcAE aims to learn encoder-decoder mappings, the squared error between the reconstructed…

声音 · 计算机科学 2022-06-16 Hung-Shin Lee , Pin-Tuan Huang , Yao-Fei Cheng , Hsin-Min Wang

Visual generative models (e.g., diffusion models) typically operate in compressed latent spaces to balance training efficiency and sample quality. In parallel, there has been growing interest in leveraging high-quality pre-trained visual…

计算机视觉与模式识别 · 计算机科学 2025-12-17 Yuan Gao , Chen Chen , Tianrong Chen , Jiatao Gu

A pilot spoofer can paralyze the channel estimation in multi-user orthogonal frequency-division multiplexing (OFD- M) systems by using the same publicly-known pilot tones as legitimate nodes. This causes the problem of pilot authentication…

信息论 · 计算机科学 2018-01-24 Dongyang Xu , Pinyi Ren , James A. Ritcey , Yichen Wang

In this work, we propose a supervised, convex representation based audio hashing framework for bird species classification. The proposed framework utilizes archetypal analysis, a matrix factorization technique, to obtain convex-sparse…

音频与语音处理 · 电气工程与系统科学 2019-02-08 Anshul Thakur , Pulkit Sharma , Vinayak Abrol , Padmanabhan Rajan

While homomorphic encryption (HE) provides strong privacy protection, its high computational cost has restricted its application to simple tasks. Recently, hyperdimensional computing (HDC) applied to HE has shown promising performance for…

密码学与安全 · 计算机科学 2025-11-04 Jaewoo Park , Chenghao Quan , Jongeun Lee

Attribute recognition is a crucial but challenging task due to viewpoint changes, illumination variations and appearance diversities, etc. Most of previous work only consider the attribute-level feature embedding, which might perform poorly…

计算机视觉与模式识别 · 计算机科学 2020-05-26 Jie Yang , Jiarou Fan , Yiru Wang , Yige Wang , Weihao Gan , Lin Liu , Wei Wu

Software vulnerabilities are commonly exploited as attack vectors in cyberattacks. Hence, it is crucial to identify vulnerable software configurations early to apply preventive measures. Effective vulnerability detection relies on…

密码学与安全 · 计算机科学 2024-12-24 Devesh Sawant , Manjesh K. Hanawal , Atul Kabra

Out-of-distribution (OOD) detection remains a fundamental challenge for deep neural networks, particularly due to overconfident predictions on unseen OOD samples during testing. We reveal a key insight: OOD samples predicted as the same…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Yanqi Wu , Qichao Chen , Runhe Lai , Xinhua Lu , Jia-Xin Zhuang , Zhilin Zhao , Wei-Shi Zheng , Ruixuan Wang

In many applications of neural network, it is common to introduce huge amounts of input categorical features, as well as output labels. However, since the required network size should have rapid growth with respect to the dimensions of…

信息论 · 计算机科学 2018-05-22 Qizhi Zhang , Kuang-chih Lee , Hongying Bao , Yuan You , Dongbai Guo

Generalized Category Discovery (GCD) aims to identify novel categories in unlabeled data while leveraging a small labeled subset of known classes. Training a parametric classifier solely on image features often leads to overfitting to old…

计算机视觉与模式识别 · 计算机科学 2026-02-20 Lorenzo Caselli , Marco Mistretta , Simone Magistri , Andrew D. Bagdanov

Semantic part localization can facilitate fine-grained categorization by explicitly isolating subtle appearance differences associated with specific object parts. Methods for pose-normalized representations have been proposed, but generally…

计算机视觉与模式识别 · 计算机科学 2014-07-16 Ning Zhang , Jeff Donahue , Ross Girshick , Trevor Darrell

Achieving highly accurate and real-time 3D occupancy prediction from cameras is a critical requirement for the safe and practical deployment of autonomous vehicles. While this shift to sparse 3D representations solves the encoding…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Suzeyu Chen , Leheng Li , Ying-Cong Chen

Data encoding is a fundamental step in emerging computing paradigms, particularly in stochastic computing (SC) and hyperdimensional computing (HDC), where it plays a crucial role in determining the overall system performance and hardware…

新兴技术 · 计算机科学 2025-01-07 Mehran Shoushtari Moghadam , Sercan Aygun , M. Hassan Najafi

Generalized Category Discovery (GCD) aims to identify both known and novel categories within unlabeled data by leveraging a set of labeled examples from known categories. Existing GCD methods primarily depend on semantic labels and global…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Fernando Julio Cendra , Kai Han

Standard cross-entropy is the default classification loss across virtually all of machine learning, yet it treats all misclassifications equally, ignoring the semantic distances that a class hierarchy encodes. We propose Hierarchy-Aware…

机器学习 · 计算机科学 2026-05-08 April Chan , Davide D'Ascenzo , Sebastiano Cultrera di Montesano

The high efficiency video coding (HEVC) standard and the joint exploration model (JEM) codec incorporate 35 and 67 intra prediction modes (IPMs) respectively, which are essential for efficient compression of Intra coded blocks. These IPMs…

图像与视频处理 · 电气工程与系统科学 2023-10-10 Kevin Reuzé , Wassim Hamidouche , Pierrick Philippe , Olivier Déforges

Simulations of large-scale dynamical systems require expensive computations. Low-dimensional parametrization of high-dimensional states such as Proper Orthogonal Decomposition (POD) can be a solution to lessen the burdens by providing a…

动力系统 · 数学 2024-10-30 Yongho Kim , Jan Heiland