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Collaborative filtering (CF) has been successfully used to provide users with personalized products and services. However, dealing with the increasing sparseness of user-item matrix still remains a challenge. To tackle such issue, hybrid CF…

信息检索 · 计算机科学 2017-06-14 Shuai Zhang , Lina Yao , Xiwei Xu

Fine-grained categories are more difficulty distinguished than generic categories due to the similarity of inter-class and the diversity of intra-class. Therefore, the fine-grained visual categorization (FGVC) is considered as one of…

计算机视觉与模式识别 · 计算机科学 2015-05-12 Guo Lihua , Guo Chenggan

Current deep learning classifiers, carry out supervised learning and store class discriminatory information in a set of shared network weights. These weights cannot be easily altered to incrementally learn additional classes, since the…

计算机视觉与模式识别 · 计算机科学 2022-12-02 Penny Johnston , Keiller Nogueira , Kevin Swingler

Gaussian graphical models (GGMs) are well-established tools for probabilistic exploration of dependence structures using precision matrices. We develop a Bayesian method to incorporate covariate information in this GGMs setup in a nonlinear…

Fine-grained visual classification (FGVC) is much more challenging than traditional classification tasks due to the inherently subtle intra-class object variations. Recent works mainly tackle this problem by focusing on how to locate the…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Ruoyi Du , Dongliang Chang , Ayan Kumar Bhunia , Jiyang Xie , Zhanyu Ma , Yi-Zhe Song , Jun Guo

Aggregating deep convolutional features into a global image vector has attracted sustained attention in image retrieval. In this paper, we propose an efficient unsupervised aggregation method that uses an adaptive Gaussian filter and an…

计算机视觉与模式识别 · 计算机科学 2018-03-21 Jiaxing Wang , Jihua Zhu , Shanmin Pang , Zhongyu Li , Yaochen Li , Xueming Qian

We examine Generative Adversarial Networks (GANs) through the lens of deep Energy Based Models (EBMs), with the goal of exploiting the density model that follows from this formulation. In contrast to a traditional view where the…

机器学习 · 计算机科学 2019-10-30 Shuangfei Zhai , Walter Talbott , Carlos Guestrin , Joshua M. Susskind

Constructing effective representations is a critical but challenging problem in multimedia understanding. The traditional handcraft features often rely on domain knowledge, limiting the performances of exiting methods. This paper discusses…

计算机视觉与模式识别 · 计算机科学 2015-02-04 Zhanglin Peng , Liang Lin , Ruimao Zhang , Jing Xu

Diffusion models (DMs) are a type of generative model that has a huge impact on image synthesis and beyond. They achieve state-of-the-art generation results in various generative tasks. A great diversity of conditioning inputs, such as text…

机器学习 · 计算机科学 2024-02-02 Weiguo Lu , Xuan Wu , Deng Ding , Jinqiao Duan , Jirong Zhuang , Gangnan Yuan

We consider the problem of designing a sparse Gaussian process classifier (SGPC) that generalizes well. Viewing SGPC design as constructing an additive model like in boosting, we present an efficient and effective SGPC design method to…

机器学习 · 计算机科学 2012-06-27 Sundararajan Sellamanickam , Shirish Shevade

Score diffusion methods can learn probability densities from samples. The score of the noise-corrupted density is estimated using a deep neural network, which is then used to iteratively transport a Gaussian white noise density to a target…

计算机视觉与模式识别 · 计算机科学 2024-10-16 Zahra Kadkhodaie , Stéphane Mallat , Eero P. Simoncelli

3D generative models of objects enable photorealistic image synthesis with 3D control. Existing methods model the scene as a global scene representation, ignoring the compositional aspect of the scene. Compositional reasoning can enable a…

图形学 · 计算机科学 2022-11-01 Mallikarjun BR , Ayush Tewari , Xingang Pan , Mohamed Elgharib , Christian Theobalt

Text-to-image diffusion models have demonstrated an impressive ability to produce high-quality outputs. However, they often struggle to accurately follow fine-grained spatial information in an input text. To this end, we propose a…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Ran Galun , Sagie Benaim

This paper presents a novel approach for guiding a Generative Adversarial Network trained on the FashionGen dataset to generate designs corresponding to target fashion styles. Finding the latent vectors in the generator's latent space that…

神经与进化计算 · 计算机科学 2022-04-05 Imke Grabe , Jichen Zhu , Manex Agirrezabal

Tensor Factor Models (TFM) are appealing dimension reduction tools for high-order large-dimensional tensor time series, and have wide applications in economics, finance and medical imaging. In this paper, we propose a projection estimator…

统计方法学 · 统计学 2025-03-03 Matteo Barigozzi , Yong He , Lingxiao Li , Lorenzo Trapani

We present the Causal Gaussian Process Convolution Model (CGPCM), a doubly nonparametric model for causal, spectrally complex dynamical phenomena. The CGPCM is a generative model in which white noise is passed through a causal,…

机器学习 · 统计学 2018-02-23 Wessel Bruinsma , Richard E. Turner

Gaussian processes are powerful, yet analytically tractable models for supervised learning. A Gaussian process is characterized by a mean function and a covariance function (kernel), which are determined by a model selection criterion. The…

机器学习 · 统计学 2016-10-05 Benjamin Fischer , Nico Gorbach , Stefan Bauer , Yatao Bian , Joachim M. Buhmann

In this paper, a novel linear method for shape reconstruction is proposed based on the generalized multiple measurement vectors (GMMV) model. Finite difference frequency domain (FDFD) is applied to discretized Maxwell's equations, and the…

信号处理 · 电气工程与系统科学 2019-06-27 Shilong Sun , Bert Jan Kooij , Alexander G. Yarovoy , Tian Jin

Vector representations have become a central element in semantic language modelling, leading to mathematical overlaps with many fields including quantum theory. Compositionality is a core goal for such representations: given representations…

计算与语言 · 计算机科学 2021-05-12 Dominic Widdows , Kristen Howell , Trevor Cohen

While Large Language Models (LLMs) make symbolic music generation increasingly accessible, producing music with distinctive composition and rich expressiveness remains a significant challenge. Many studies have introduced emotion models to…

声音 · 计算机科学 2025-11-19 Dengyun Huang , Yonghua Zhu