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Deep image generation is becoming a tool to enhance artists and designers creativity potential. In this paper, we aim at making the generation process more structured and easier to interact with. Inspired by vector graphics systems, we…

计算机视觉与模式识别 · 计算机科学 2019-07-09 Othman Sbai , Camille Couprie , Mathieu Aubry

Learning universal graph representations across heterogeneous domains is difficult because graph datasets differ in topology, node-attribute semantics, feature dimensions, and even attribute availability. We propose GraphVec, a…

机器学习 · 计算机科学 2026-05-08 Qi Feng , Jicong Fan

The gradient scheme framework is based on a small number of properties and encompasses a large number of numerical methods for diffusion models. We recall these properties and develop some new generic tools associated with the gradient…

数值分析 · 数学 2015-11-10 Jerome Droniou , Robert Eymard , Raphaele Herbin

A graph embedding is a representation of graph vertices in a low-dimensional space, which approximately preserves properties such as distances between nodes. Vertex sequence-based embedding procedures use features extracted from linear…

机器学习 · 计算机科学 2020-01-22 Benedek Rozemberczki , Rik Sarkar

Anomaly detection in multivariate time series is a critical task across a wide range of real-world applications, where abnormal behaviour is rare, labels are unavailable, and the cost of a miss is high. The central challenge is learning a…

机器学习 · 计算机科学 2026-05-25 Alberto D. Cencillo , Leonardo Concepción , Isaac Triguero , Julián Luengo

We present a general framework for analyzing the complexity of subdivision-based algorithms whose tests are based on the sizes of regions and their distance to certain sets (often varieties) intrinsic to the problem under study. We call…

符号计算 · 计算机科学 2018-01-19 Michael Burr , Shuhong Gao , Elias Tsigaridas

Graph embedding aims at learning a vector-based representation of vertices that incorporates the structure of the graph. This representation then enables inference of graph properties. Existing graph embedding techniques, however, do not…

Among the new techniques of Versatile Video Coding (VVC), the quadtree with nested multi-type tree (QT+MTT) block structure yields significant coding gains by providing more flexible block partitioning patterns. However, the recursive…

图像与视频处理 · 电气工程与系统科学 2025-07-16 Xinmin Feng , Zhuoyuan Li , Li Li , Dong Liu , Feng Wu

Networks have been widely used as the data structure for abstracting real-world systems as well as organizing the relations among entities. Network embedding models are powerful tools in mapping nodes in a network into continuous…

社会与信息网络 · 计算机科学 2019-05-28 Ninghao Liu , Qiaoyu Tan , Yuening Li , Hongxia Yang , Jingren Zhou , Xia Hu

An algorithm is proposed for the segmentation of image into multiple levels using mean and standard deviation in the wavelet domain. The procedure provides for variable size segmentation with bigger block size around the mean, and having…

A multivariate biorthogonal wavelet system can be obtained from a pair of multivariate biorthogonal refinement masks in Multiresolution Analysis setup. Some multivariate refinement masks may be decomposed into lower dimensional refinement…

数值分析 · 数学 2014-01-21 Youngmi Hur , Fang Zheng

Sparse Matrix-Vector multiplication (SpMV) is an essential computational kernel in many application scenarios. Tens of sparse matrix formats and implementations have been proposed to compress the memory storage and speed up SpMV…

分布式、并行与集群计算 · 计算机科学 2022-12-22 Zhen Du , Jiajia Li , Yinshan Wang , Xueqi Li , Guangming Tan , Ninghui Sun

The recent literature on first order methods for smooth optimization shows that significant improvements on the practical convergence behaviour can be achieved with variable stepsize and scaling for the gradient, making this class of…

数值分析 · 数学 2015-06-17 Silvia Bonettini , Alessandro Benfenati , Valeria Ruggiero

Scaling up the vocabulary of semantic segmentation models is extremely challenging because annotating large-scale mask labels is labour-intensive and time-consuming. Recently, language-guided segmentation models have been proposed to…

计算机视觉与模式识别 · 计算机科学 2025-01-14 Haojun Yu , Di Dai , Ziwei Zhao , Di He , Han Hu , Liwei Wang

Deep supervision, which involves extra supervisions to the intermediate features of a neural network, was widely used in image classification in the early deep learning era since it significantly reduces the training difficulty and eases…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Sucheng Ren , Fangyun Wei , Samuel Albanie , Zheng Zhang , Han Hu

Splitting schemes are a class of powerful algorithms that solve complicated monotone inclusions and convex optimization problems that are built from many simpler pieces. They give rise to algorithms in which the simple pieces of the…

最优化与控制 · 数学 2015-05-19 Damek Davis , Wotao Yin

In pure integer linear programming it is often desirable to work with polyhedra that are full-dimensional, and it is well known that it is possible to reduce any polyhedron to a full-dimensional one in polynomial time. More precisely, using…

最优化与控制 · 数学 2024-02-06 Alberto Del Pia

Vector retrieval systems exhibit significant performance variance across queries due to heterogeneous embedding quality. We propose a lightweight framework for predicting retrieval performance at the query level by combining quantization…

信息检索 · 计算机科学 2025-07-09 Y. Du

We represent vector bundles over a regular algebraic curve as pairs of lattices over the maximal orders of its function field and we give polynomial time algorithms for several tasks: computing determinants of vector bundles, kernels and…

代数几何 · 数学 2024-08-05 Mickaël Montessinos

Visual reprogramming (VR) is a prompting technique that aims to re-purpose a pre-trained model (e.g., a classifier on ImageNet) to target tasks (e.g., medical data prediction) by learning a small-scale pattern added into input images…

机器学习 · 计算机科学 2024-06-06 Chengyi Cai , Zesheng Ye , Lei Feng , Jianzhong Qi , Feng Liu