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Deep metric learning has attracted much attention in recent years, due to seamlessly combining the distance metric learning and deep neural network. Many endeavors are devoted to design different pair-based angular loss functions, which…

计算机视觉与模式识别 · 计算机科学 2020-11-06 Dingyi Zhang , Yingming Li , Zhongfei Zhang

Deep unfolding networks have recently gained popularity in the context of solving imaging inverse problems. However, the computational and memory complexity of data-consistency layers within traditional deep unfolding networks scales with…

图像与视频处理 · 电气工程与系统科学 2021-06-04 Jiaming Liu , Yu Sun , Weijie Gan , Xiaojian Xu , Brendt Wohlberg , Ulugbek S. Kamilov

Traditional sketch segmentation methods mainly rely on handcrafted features and complicate models, and their performance is far from satisfactory due to the abstract representation of sketches. Recent success of Deep Neural Networks (DNNs)…

图像与视频处理 · 电气工程与系统科学 2018-12-31 Fei Wang , Shujin Lin , Hanhui Li , Hefeng Wu , Junkun Jiang , Ruomei Wang , Xiaonan Luo

In this paper, we address the problem of hand-drawn sketch recognition. Inspired by the Bayesian decision theory, we present a deep metric learning loss with the objective to minimize the Bayesian risk of misclassification. We estimate this…

计算机视觉与模式识别 · 计算机科学 2018-12-07 Anand Mishra , Ajeet Kumar Singh

Semantic segmentation, like other fields of computer vision, has seen a remarkable performance advance by the use of deep convolution neural networks. However, considering that neighboring pixels are heavily dependent on each other, both…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Hyojin Park , Jisoo Jeong , Youngjoon Yoo , Nojun Kwak

Recent image degradation estimation methods have enabled single-image super-resolution (SR) approaches to better upsample real-world images. Among these methods, explicit kernel estimation approaches have demonstrated unprecedented…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Royson Lee , Rui Li , Stylianos I. Venieris , Timothy Hospedales , Ferenc Huszár , Nicholas D. Lane

We present SENS, a novel method for generating and editing 3D models from hand-drawn sketches, including those of abstract nature. Our method allows users to quickly and easily sketch a shape, and then maps the sketch into the latent space…

图形学 · 计算机科学 2024-02-22 Alexandre Binninger , Amir Hertz , Olga Sorkine-Hornung , Daniel Cohen-Or , Raja Giryes

High-dimensional sparse data present computational and statistical challenges for supervised learning. We propose compact linear sketches for reducing the dimensionality of the input, followed by a single layer neural network. We show that…

机器学习 · 计算机科学 2016-04-21 Amit Daniely , Nevena Lazic , Yoram Singer , Kunal Talwar

Given the inherent class imbalance issue within student performance datasets, samples belonging to the edges of the target class distribution pose a challenge for predictive machine learning algorithms to learn. In this paper, we introduce…

机器学习 · 计算机科学 2021-01-05 Dom Huh

Fine-Grained Sketch-Based Image Retrieval (FG-SBIR) aims at finding a specific image from a large gallery given a query sketch. Despite the widespread applicability of FG-SBIR in many critical domains (e.g., crime activity tracking),…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Dingrong Wang , Hitesh Sapkota , Xumin Liu , Qi Yu

Designing nanophotonic structures traditionally grapples with the complexities of discrete parameters, such as real materials, often resorting to costly global optimization methods. This paper introduces an approach that leverages…

光学 · 物理学 2025-06-12 Dalin Soun , Antoine Azéma , Lucien Roach , Glenna L. Drisko , Peter R. Wiecha

In this work, we study distributed sketching methods for large scale regression problems. We leverage multiple randomized sketches for reducing the problem dimensions as well as preserving privacy and improving straggler resilience in…

分布式、并行与集群计算 · 计算机科学 2020-06-23 Burak Bartan , Mert Pilanci

Parsing sketches via semantic segmentation is attractive but challenging, because (i) free-hand drawings are abstract with large variances in depicting objects due to different drawing styles and skills; (ii) distorting lines drawn on the…

计算机视觉与模式识别 · 计算机科学 2019-10-15 Junkun Jiang , Ruomei Wang , Shujin Lin , Fei Wang

Approximate Natural Gradient Descent (NGD) methods are an important family of optimisers for deep learning models, which use approximate Fisher information matrices to pre-condition gradients during training. The empirical Fisher (EF)…

机器学习 · 计算机科学 2024-11-07 Xiaodong Wu , Wenyi Yu , Chao Zhang , Philip Woodland

Many early neural Information Retrieval (NeurIR) methods are re-rankers that rely on a traditional first-stage retriever due to expensive query time computations. Recently, representation-based retrievers have gained much attention, which…

信息检索 · 计算机科学 2023-11-28 Sibo Dong , Justin Goldstein , Grace Hui Yang

This work discusses tensor network embeddings, which are random matrices ($S$) with tensor network structure. These embeddings have been used to perform dimensionality reduction of tensor network structured inputs $x$ and accelerate…

数值分析 · 数学 2022-05-27 Linjian Ma , Edgar Solomonik

Natural gradient methods significantly accelerate the training of Physics-Informed Neural Networks (PINNs), but are often prohibitively costly. We introduce a suite of techniques to improve the accuracy and efficiency of energy natural…

机器学习 · 计算机科学 2025-10-24 Andrés Guzmán-Cordero , Felix Dangel , Gil Goldshlager , Marius Zeinhofer

The automatic differentiation (AD) in the vanilla physics-informed neural networks (PINNs) is the computational bottleneck for the high-efficiency analysis. The concept of derivative discretization in smoothed particle hydrodynamics (SPH)…

计算物理 · 物理学 2024-11-11 Cunliang Pan , Chengxuan Li , Yu Liu , Yonggang Zheng , Hongfei Ye

In this paper we analyze the behaviour of the stochastic gradient descent (SGD), a widely used method in supervised learning for optimizing neural network weights via a minimization of non-convex loss functions. Since the pioneering work of…

机器学习 · 计算机科学 2025-05-13 Davide Barbieri , Matteo Bonforte , Peio Ibarrondo

Physics-Informed Neural Networks (PINNs) are a class of deep neural networks that are trained, using automatic differentiation, to compute the response of systems governed by partial differential equations (PDEs). The training of PINNs is…

机器学习 · 计算机科学 2021-04-27 Mohammad Amin Nabian , Rini Jasmine Gladstone , Hadi Meidani