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Convolutional Neural Networks (CNN) have been regarded as a capable class of models for visual recognition problems. Nevertheless, it is not trivial to develop generic and powerful network architectures, which requires significant efforts…

计算机视觉与模式识别 · 计算机科学 2019-09-24 Zhaofan Qiu , Ting Yao , Yiheng Zhang , Yongdong Zhang , Tao Mei

Deep neural networks (DNNs) for supervised learning can be viewed as a pipeline of a feature extractor (i.e. last hidden layer) and a linear classifier (i.e. output layer) that is trained jointly with stochastic gradient descent (SGD). In…

机器学习 · 计算机科学 2020-02-28 Xiangrui Li , Deng Pan , Xin Li , Dongxiao Zhu

Spiking Neural Networks (SNNs) have emerged as an attractive alternative to traditional deep learning frameworks, since they provide higher computational efficiency in event driven neuromorphic hardware. However, the state-of-the-art (SOTA)…

神经与进化计算 · 计算机科学 2021-09-05 Gourav Datta , Souvik Kundu , Peter A. Beerel

We consider the problem of denoising with the help of prior information taken from a database of clean signals or images. Denoising with variational methods is very efficient if a regularizer well adapted to the nature of the data is…

机器学习 · 计算机科学 2023-10-06 Hui Shi , Yann Traonmilin , J-F Aujol

This paper presents a simple yet effective supervised deep hash approach that constructs binary hash codes from labeled data for large-scale image search. We assume that the semantic labels are governed by several latent attributes with…

计算机视觉与模式识别 · 计算机科学 2017-02-15 Huei-Fang Yang , Kevin Lin , Chu-Song Chen

The structure-preserving doubling algorithm (SDA) is a fairly efficient method for solving problems closely related to Hamiltonian (or Hamiltonian-like) matrices, such as computing the required solutions to algebraic Riccati equations.…

数值分析 · 数学 2020-05-19 Zhen-Chen Guo , Eric King-Wah Chu , Xin Liang , Wen-Wei Lin

Automatic sleep staging is a challenging problem and state-of-the-art algorithms have not yet reached satisfactory performance to be used instead of manual scoring by a sleep technician. Much research has been done to find good feature…

机器学习 · 计算机科学 2018-05-15 Martin Längkvist , Amy Loutfi

Robust data association is necessary for virtually every SLAM system and finding corresponding points is typically a preprocessing step for scan alignment algorithms. Traditionally, handcrafted feature descriptors were used for these…

计算机视觉与模式识别 · 计算机科学 2018-09-21 Ayush Dewan , Tim Caselitz , Wolfram Burgard

The generative learning phase of Autoencoder (AE) and its successor Denosing Autoencoder (DAE) enhances the flexibility of data stream method in exploiting unlabelled samples. Nonetheless, the feasibility of DAE for data stream analytic…

机器学习 · 计算机科学 2018-09-25 Mahardhika Pratama , Andri Ashfahani , Yew Soon Ong , Savitha Ramasamy , Edwin Lughofer

A novel technique for deep learning of image classifiers is presented. The learned CNN models offer better separation of deep features (also known as embedded vectors) measured by Euclidean proximity and also no deterioration of the…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Rafal Pilarczyk , Wladyslaw Skarbek

We propose a new metaheuristic training scheme that combines Stochastic Gradient Descent (SGD) and Discrete Optimization in an unconventional way. Our idea is to define a discrete neighborhood of the current SGD point containing a number of…

机器学习 · 计算机科学 2019-06-05 Matteo Fischetti , Matteo Stringher

Linear concept vectors effectively steer LLMs, but existing methods suffer from noisy features in diverse datasets that undermine steering robustness. We propose Sparse Autoencoder-Denoised Concept Vectors (SDCV), which selectively keep the…

计算与语言 · 计算机科学 2025-07-31 Haiyan Zhao , Xuansheng Wu , Fan Yang , Bo Shen , Ninghao Liu , Mengnan Du

Most existing feature learning methods optimize inflexible handcrafted features and the affinity matrix is constructed by shallow linear embedding methods. Different from these conventional methods, we pretrain a generative neural network…

计算机视觉与模式识别 · 计算机科学 2019-10-02 Changlu Chen , Chaoxi Niu , Xia Zhan , Kun Zhan

Self-supervised learning (SSL) methods such as masked language modeling have shown massive performance gains by pretraining transformer models for a variety of natural language processing tasks. The follow-up research adapted similar…

计算机视觉与模式识别 · 计算机科学 2022-05-12 Gokul Karthik Kumar , Sahal Shaji Mullappilly , Abhishek Singh Gehlot

3D city models can be generated from aerial images. However, the calculated DSMs suffer from noise, artefacts, and data holes that have to be manually cleaned up in a time-consuming process. This work presents an approach that automatically…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Nando Metzger

This paper explores a new framework for lossy image encryption and decryption using a simple shallow encoder neural network E for encryption, and a complex deep decoder neural network D for decryption. E is kept simple so that encoding can…

机器学习 · 计算机科学 2020-05-19 Chirag Gupta

Deep neural networks (DNNs) for supervised learning can be viewed as a pipeline of the feature extractor (i.e., last hidden layer) and a linear classifier (i.e., output layer) that are trained jointly with stochastic gradient descent (SGD)…

机器学习 · 计算机科学 2022-11-28 Xin Li , Xiangrui Li , Deng Pan , Yao Qiang , Dongxiao Zhu

Machine Learning models are vulnerable to adversarial attacks that rely on perturbing the input data. This work proposes a novel strategy using Autoencoder Deep Neural Networks to defend a machine learning model against two gradient-based…

机器学习 · 计算机科学 2018-12-10 Rajeev Sahay , Rehana Mahfuz , Aly El Gamal

We present a simple and efficient method based on deep learning to automatically decompose sketched objects into semantically valid parts. We train a deep neural network to transfer existing segmentations and labelings from 3D models to…

图形学 · 计算机科学 2018-08-01 Lei Li , Hongbo Fu , Chiew-Lan Tai

Deep kernel map networks have shown excellent performances in various classification problems including image annotation. Their general recipe consists in aggregating several layers of singular value decompositions (SVDs) -- that map data…

计算机视觉与模式识别 · 计算机科学 2020-06-29 Mingyuan Jiu , Hichem Sahbi