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Clustering may be the most fundamental problem in unsupervised learning which is still active in machine learning research because its importance in many applications. Popular methods like K-means, may suffer from instability as they are…

最优化与控制 · 数学 2018-02-21 Yancheng Yuan , Defeng Sun , Kim-Chuan Toh

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

Pre-trained large models attract widespread attention in recent years, but they face challenges in applications that require high interpretability or have limited resources, such as physical sensing, medical imaging, and bioinformatics.…

机器学习 · 计算机科学 2025-01-24 Chaoqing Tang , Huanze Zhuang , Guiyun Tian , Zhenli Zeng , Yi Ding , Wenzhong Liu , Xiang Bai

The Convolutional Sparse Coding (CSC) model has recently gained considerable traction in the signal and image processing communities. By providing a global, yet tractable, model that operates on the whole image, the CSC was shown to…

计算机视觉与模式识别 · 计算机科学 2018-11-02 Ev Zisselman , Jeremias Sulam , Michael Elad

In this paper, we present a local information theoretic approach to explicitly learn probabilistic clustering of a discrete random variable. Our formulation yields a convex maximization problem for which it is NP-hard to find the global…

机器学习 · 计算机科学 2018-10-12 David Qiu , Anuran Makur , Lizhong Zheng

We propose SketchINR, to advance the representation of vector sketches with implicit neural models. A variable length vector sketch is compressed into a latent space of fixed dimension that implicitly encodes the underlying shape as a…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Hmrishav Bandyopadhyay , Ayan Kumar Bhunia , Pinaki Nath Chowdhury , Aneeshan Sain , Tao Xiang , Timothy Hospedales , Yi-Zhe Song

Compressed Image Super-resolution (CSR) aims to simultaneously super-resolve the compressed images and tackle the challenging hybrid distortions caused by compression. However, existing works on CSR usually focuses on a single compression…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Xin Li , Bingchen Li , Yeying Jin , Cuiling Lan , Hanxin Zhu , Yulin Ren , Zhibo Chen

Sparse optimization is a central problem in machine learning and computer vision. However, this problem is inherently NP-hard and thus difficult to solve in general. Combinatorial search methods find the global optimal solution but are…

最优化与控制 · 数学 2020-06-30 Ganzhao Yuan , Li Shen , Wei-Shi Zheng

Clustering a graph means identifying internally dense subgraphs which are only sparsely interconnected. Formalizations of this notion lead to measures that quantify the quality of a clustering and to algorithms that actually find…

数据结构与算法 · 计算机科学 2011-12-12 Robert Görke , Andrea Schumm , Dorothea Wagner

Neural network-based clustering has recently gained popularity, and in particular a constrained clustering formulation has been proposed to perform transfer learning and image category discovery using deep learning. The core idea is to…

计算机视觉与模式识别 · 计算机科学 2018-06-29 Yen-Chang Hsu , Zhaoyang Lv , Joel Schlosser , Phillip Odom , Zsolt Kira

Decoder-only models generate tokens autoregressively by caching key/value vectors, but as the cache grows, inference becomes memory-bound. To address this issue, we introduce CLOVER (Cross-Layer Orthogonal Vectors), a novel approach that…

机器学习 · 计算机科学 2025-02-03 Fanxu Meng , Pingzhi Tang , Fan jiang , Muhan Zhang

Count-Min Sketch with Conservative Updates (CMS-CU) is a popular algorithm to approximately count items' appearances in a data stream. Despite CMS-CU's widespread adoption, the theoretical analysis of its performance is still wanting…

离散数学 · 计算机科学 2022-03-29 Younes Ben Mazziane , Sara Alouf , Giovanni Neglia

In this paper, we explore the potential of the Contrastive Language-Image Pretraining (CLIP) model in scene text recognition (STR), and establish a novel Symmetrical Linguistic Feature Distillation framework (named CLIP-OCR) to leverage…

计算机视觉与模式识别 · 计算机科学 2023-10-11 Zixiao Wang , Hongtao Xie , Yuxin Wang , Jianjun Xu , Boqiang Zhang , Yongdong Zhang

Continual Learning (CL) is crucial for enabling networks to dynamically adapt as they learn new tasks sequentially, accommodating new data and classes without catastrophic forgetting. Diverging from conventional perspectives on CL, our…

图像与视频处理 · 电气工程与系统科学 2024-07-12 Nourhan Bayasi , Jamil Fayyad , Alceu Bissoto , Ghassan Hamarneh , Rafeef Garbi

We propose a low-rank transformation-learning framework to robustify subspace clustering. Many high-dimensional data, such as face images and motion sequences, lie in a union of low-dimensional subspaces. The subspace clustering problem has…

计算机视觉与模式识别 · 计算机科学 2013-08-02 Qiang Qiu , Guillermo Sapiro

Lossy image compression is generally formulated as a joint rate-distortion optimization to learn encoder, quantizer, and decoder. However, the quantizer is non-differentiable, and discrete entropy estimation usually is required for rate…

计算机视觉与模式识别 · 计算机科学 2017-09-20 Mu Li , Wangmeng Zuo , Shuhang Gu , Debin Zhao , David Zhang

In this paper, we propose a novel information theoretic framework for dictionary learning (DL) and sparse coding (SC) on a statistical manifold (the manifold of probability distributions). Unlike the traditional DL and SC framework, our new…

计算机视觉与模式识别 · 计算机科学 2018-05-08 Rudrasis Chakraborty , Monami Banerjee , Baba C. Vemuri

Combinatorial optimization problems arise in a wide range of applications from diverse domains. Many of these problems are NP-hard and designing efficient heuristics for them requires considerable time and experimentation. On the other…

数据结构与算法 · 计算机科学 2020-01-07 Juho Lauri , Sourav Dutta , Marco Grassia , Deepak Ajwani

With the aggressive scaling of VLSI technology, the explosion of layout patterns creates a critical bottleneck for DFM applications like OPC. Pattern clustering is essential to reduce data complexity, yet existing methods struggle with…

硬件体系结构 · 计算机科学 2025-12-16 Shuo Liu

LiDAR point clouds are fundamental to various applications, yet the extreme sparsity of high-precision geometric details hinders efficient context modeling, thereby limiting the compression speed and performance of existing methods. To…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Pengpeng Yu , Haoran Li , Runqing Jiang , Dingquan Li , Jing Wang , Liang Lin , Yulan Guo